sql_yacc.yy 296 KB
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/* Copyright (C) 2000-2003 MySQL AB
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   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

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/* sql_yacc.yy */
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%{
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/* thd is passed as an arg to yyparse(), and subsequently to yylex().
** The type will be void*, so it must be  cast to (THD*) when used.
** Use the YYTHD macro for this.
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*/
#define YYPARSE_PARAM yythd
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#define YYLEX_PARAM yythd
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#define YYTHD ((THD *)yythd)

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#define MYSQL_YACC
#define YYINITDEPTH 100
#define YYMAXDEPTH 3200				/* Because of 64K stack */
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#define Lex (YYTHD->lex)
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#define Select Lex->current_select
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#include "mysql_priv.h"
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#include "slave.h"
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#include "lex_symbol.h"
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#include "item_create.h"
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#include "sp_head.h"
#include "sp_pcontext.h"
#include "sp_rcontext.h"
#include "sp.h"
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#include "event_data_objects.h"
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#include <myisam.h>
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#include <myisammrg.h>
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int yylex(void *yylval, void *yythd);
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const LEX_STRING null_lex_str={0,0};

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#define yyoverflow(A,B,C,D,E,F) {ulong val= *(F); if (my_yyoverflow((B), (D), &val)) { yyerror((char*) (A)); return 2; } else { *(F)= (YYSIZE_T)val; }}
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#define YYERROR_UNLESS(A)               \
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  if (!(A))                             \
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  {					\
    yyerror(ER(ER_SYNTAX_ERROR));	\
    YYABORT;				\
  }

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/* Helper for parsing "IS [NOT] truth_value" */
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inline Item *is_truth_value(THD *thd, Item *A, bool v1, bool v2)
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{
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  Item *v1_t= new (thd->mem_root) Item_int((char *) (v1 ? "TRUE" : "FALSE"),
                                           v1, 1);
  Item *v1_f= new (thd->mem_root) Item_int((char *) (v1 ? "FALSE" : "TRUE"),
                                           !v1, 1);
  Item *v2_t= new (thd->mem_root) Item_int((char *) (v2 ? "TRUE" : "FALSE"),
                                           v2, 1);
  Item *ifnull= new (thd->mem_root) Item_func_ifnull(A, v2_t);

  return new (thd->mem_root) Item_func_if(ifnull, v1_t, v1_f);
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}

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#ifndef DBUG_OFF
#define YYDEBUG 1
#else
#define YYDEBUG 0
#endif

#ifndef DBUG_OFF
void turn_parser_debug_on()
{
  /*
     MYSQLdebug is in sql/sql_yacc.cc, in bison generated code.
     Turning this option on is **VERY** verbose, and should be
     used when investigating a syntax error problem only.

     The syntax to run with bison traces is as follows :
     - Starting a server manually :
       mysqld --debug="d,parser_debug" ...
     - Running a test :
       mysql-test-run.pl --mysqld="--debug=d,parser_debug" ...

     The result will be in the process stderr (var/log/master.err)
   */

  extern int yydebug;
  yydebug= 1;
}
#endif

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%}
%union {
  int  num;
  ulong ulong_num;
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  ulonglong ulonglong_number;
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  longlong longlong_number;
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  LEX_STRING lex_str;
  LEX_STRING *lex_str_ptr;
  LEX_SYMBOL symbol;
  Table_ident *table;
  char *simple_string;
  Item *item;
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  Item_num *item_num;
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  List<Item> *item_list;
  List<String> *string_list;
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  String *string;
  key_part_spec *key_part;
  TABLE_LIST *table_list;
  udf_func *udf;
  LEX_USER *lex_user;
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  struct sys_var_with_base variable;
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  enum enum_var_type var_type;
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  Key::Keytype key_type;
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  enum ha_key_alg key_alg;
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  handlerton *db_type;
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  enum row_type row_type;
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  enum ha_rkey_function ha_rkey_mode;
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  enum enum_tx_isolation tx_isolation;
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  enum Cast_target cast_type;
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  enum Item_udftype udf_type;
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  CHARSET_INFO *charset;
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  thr_lock_type lock_type;
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  interval_type interval, interval_time_st;
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  timestamp_type date_time_type;
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  st_select_lex *select_lex;
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  chooser_compare_func_creator boolfunc2creator;
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  struct sp_cond_type *spcondtype;
  struct { int vars, conds, hndlrs, curs; } spblock;
  sp_name *spname;
  struct st_lex *lex;
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  sp_head *sphead;
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  struct p_elem_val *p_elem_value;
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}

%{
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bool my_yyoverflow(short **a, YYSTYPE **b, ulong *yystacksize);
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%}

%pure_parser					/* We have threads */

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/*
   Comments for TOKENS.
   For each token, please include in the same line a comment that contains
   the following tags:
   SQL-2003-R : Reserved keyword as per SQL-2003
   SQL-2003-N : Non Reserved keyword as per SQL-2003
   SQL-1999-R : Reserved keyword as per SQL-1999
   SQL-1999-N : Non Reserved keyword as per SQL-1999
   MYSQL      : MySQL extention (unspecified)
   MYSQL-FUNC : MySQL extention, function
   INTERNAL   : Not a real token, lex optimization
   OPERATOR   : SQL operator
   FUTURE-USE : Reserved for futur use

   This makes the code grep-able, and helps maintenance.
*/
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%token  ABORT_SYM                     /* INTERNAL (used in lex) */
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%token  ACCESSIBLE_SYM
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%token  ACTION                        /* SQL-2003-N */
%token  ADD                           /* SQL-2003-R */
%token  ADDDATE_SYM                   /* MYSQL-FUNC */
%token  AFTER_SYM                     /* SQL-2003-N */
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%token  AGAINST
%token  AGGREGATE_SYM
%token  ALGORITHM_SYM
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%token  ALL                           /* SQL-2003-R */
%token  ALTER                         /* SQL-2003-R */
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%token  ANALYZE_SYM
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%token  AND_AND_SYM                   /* OPERATOR */
%token  AND_SYM                       /* SQL-2003-R */
%token  ANY_SYM                       /* SQL-2003-R */
%token  AS                            /* SQL-2003-R */
%token  ASC                           /* SQL-2003-N */
%token  ASCII_SYM                     /* MYSQL-FUNC */
%token  ASENSITIVE_SYM                /* FUTURE-USE */
%token  AT_SYM                        /* SQL-2003-R */
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%token  AUTHORS_SYM
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%token  AUTOEXTEND_SIZE_SYM
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%token  AUTO_INC
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%token  AVG_ROW_LENGTH
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%token  AVG_SYM                       /* SQL-2003-N */
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%token  BACKUP_SYM
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%token  BEFORE_SYM                    /* SQL-2003-N */
%token  BEGIN_SYM                     /* SQL-2003-R */
%token  BETWEEN_SYM                   /* SQL-2003-R */
%token  BIGINT                        /* SQL-2003-R */
%token  BINARY                        /* SQL-2003-R */
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%token  BINLOG_SYM
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%token  BIN_NUM
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%token  BIT_AND                       /* MYSQL-FUNC */
%token  BIT_OR                        /* MYSQL-FUNC */
%token  BIT_SYM                       /* MYSQL-FUNC */
%token  BIT_XOR                       /* MYSQL-FUNC */
%token  BLOB_SYM                      /* SQL-2003-R */
%token  BOOLEAN_SYM                   /* SQL-2003-R */
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%token  BOOL_SYM
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%token  BOTH                          /* SQL-2003-R */
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%token  BTREE_SYM
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%token  BY                            /* SQL-2003-R */
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%token  BYTE_SYM
%token  CACHE_SYM
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%token  CALL_SYM                      /* SQL-2003-R */
%token  CASCADE                       /* SQL-2003-N */
%token  CASCADED                      /* SQL-2003-R */
%token  CASE_SYM                      /* SQL-2003-R */
%token  CAST_SYM                      /* SQL-2003-R */
%token  CHAIN_SYM                     /* SQL-2003-N */
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%token  CHANGE
%token  CHANGED
%token  CHARSET
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%token  CHAR_SYM                      /* SQL-2003-R */
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%token  CHECKSUM_SYM
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%token  CHECK_SYM                     /* SQL-2003-R */
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%token  CIPHER_SYM
%token  CLIENT_SYM
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%token  CLOSE_SYM                     /* SQL-2003-R */
%token  COALESCE                      /* SQL-2003-N */
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%token  CODE_SYM
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%token  COLLATE_SYM                   /* SQL-2003-R */
%token  COLLATION_SYM                 /* SQL-2003-N */
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%token  COLUMNS
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%token  COLUMN_SYM                    /* SQL-2003-R */
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%token  COMMENT_SYM
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%token  COMMITTED_SYM                 /* SQL-2003-N */
%token  COMMIT_SYM                    /* SQL-2003-R */
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%token  COMPACT_SYM
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%token  COMPLETION_SYM
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%token  COMPRESSED_SYM
%token  CONCURRENT
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%token  CONDITION_SYM                 /* SQL-2003-N */
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%token  CONNECTION_SYM
%token  CONSISTENT_SYM
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%token  CONSTRAINT                    /* SQL-2003-R */
%token  CONTAINS_SYM                  /* SQL-2003-N */
%token  CONTINUE_SYM                  /* SQL-2003-R */
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%token  CONTRIBUTORS_SYM
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%token  CONVERT_SYM                   /* SQL-2003-N */
%token  COUNT_SYM                     /* SQL-2003-N */
%token  CREATE                        /* SQL-2003-R */
%token  CROSS                         /* SQL-2003-R */
%token  CUBE_SYM                      /* SQL-2003-R */
%token  CURDATE                       /* MYSQL-FUNC */
%token  CURRENT_USER                  /* SQL-2003-R */
%token  CURSOR_SYM                    /* SQL-2003-R */
%token  CURTIME                       /* MYSQL-FUNC */
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%token  DATABASE
%token  DATABASES
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%token  DATAFILE_SYM
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%token  DATA_SYM                      /* SQL-2003-N */
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%token  DATETIME
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%token  DATE_ADD_INTERVAL             /* MYSQL-FUNC */
%token  DATE_SUB_INTERVAL             /* MYSQL-FUNC */
%token  DATE_SYM                      /* SQL-2003-R */
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%token  DAY_HOUR_SYM
%token  DAY_MICROSECOND_SYM
%token  DAY_MINUTE_SYM
%token  DAY_SECOND_SYM
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%token  DAY_SYM                       /* SQL-2003-R */
%token  DEALLOCATE_SYM                /* SQL-2003-R */
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%token  DECIMAL_NUM
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%token  DECIMAL_SYM                   /* SQL-2003-R */
%token  DECLARE_SYM                   /* SQL-2003-R */
%token  DEFAULT                       /* SQL-2003-R */
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%token  DEFINER_SYM
%token  DELAYED_SYM
%token  DELAY_KEY_WRITE_SYM
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%token  DELETE_SYM                    /* SQL-2003-R */
%token  DESC                          /* SQL-2003-N */
%token  DESCRIBE                      /* SQL-2003-R */
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%token  DES_KEY_FILE
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%token  DETERMINISTIC_SYM             /* SQL-2003-R */
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%token  DIRECTORY_SYM
%token  DISABLE_SYM
%token  DISCARD
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%token  DISK_SYM
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%token  DISTINCT                      /* SQL-2003-R */
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%token  DIV_SYM
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%token  DOUBLE_SYM                    /* SQL-2003-R */
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%token  DO_SYM
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%token  DROP                          /* SQL-2003-R */
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%token  DUAL_SYM
%token  DUMPFILE
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%token  DUPLICATE_SYM
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%token  DYNAMIC_SYM                   /* SQL-2003-R */
%token  EACH_SYM                      /* SQL-2003-R */
%token  ELSE                          /* SQL-2003-R */
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%token  ELSEIF_SYM
%token  ENABLE_SYM
%token  ENCLOSED
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%token  END                           /* SQL-2003-R */
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%token  ENDS_SYM
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%token  END_OF_INPUT                  /* INTERNAL */
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%token  ENGINES_SYM
%token  ENGINE_SYM
%token  ENUM
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%token  EQ                            /* OPERATOR */
%token  EQUAL_SYM                     /* OPERATOR */
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%token  ERRORS
%token  ESCAPED
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%token  ESCAPE_SYM                    /* SQL-2003-R */
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%token  EVENTS_SYM
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%token  EVENT_SYM
%token  EVERY_SYM                     /* SQL-2003-N */
%token  EXECUTE_SYM                   /* SQL-2003-R */
%token  EXISTS                        /* SQL-2003-R */
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%token  EXIT_SYM
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%token  EXPANSION_SYM
%token  EXTENDED_SYM
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%token  EXTENT_SIZE_SYM
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%token  EXTRACT_SYM                   /* SQL-2003-N */
%token  FALSE_SYM                     /* SQL-2003-R */
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%token  FAST_SYM
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%token  FETCH_SYM                     /* SQL-2003-R */
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%token  FILE_SYM
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%token  FIRST_SYM                     /* SQL-2003-N */
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%token  FIXED_SYM
%token  FLOAT_NUM
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%token  FLOAT_SYM                     /* SQL-2003-R */
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%token  FLUSH_SYM
%token  FORCE_SYM
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%token  FOREIGN                       /* SQL-2003-R */
%token  FOR_SYM                       /* SQL-2003-R */
%token  FOUND_SYM                     /* SQL-2003-R */
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%token  FRAC_SECOND_SYM
%token  FROM
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%token  FULL                          /* SQL-2003-R */
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%token  FULLTEXT_SYM
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%token  FUNCTION_SYM                  /* SQL-2003-R */
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%token  GE
%token  GEOMETRYCOLLECTION
%token  GEOMETRY_SYM
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%token  GET_FORMAT                    /* MYSQL-FUNC */
%token  GLOBAL_SYM                    /* SQL-2003-R */
%token  GRANT                         /* SQL-2003-R */
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%token  GRANTS
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%token  GROUP                         /* SQL-2003-R */
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%token  GROUP_CONCAT_SYM
%token  GROUP_UNIQUE_USERS
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%token  GT_SYM                        /* OPERATOR */
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%token  HANDLER_SYM
%token  HASH_SYM
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%token  HAVING                        /* SQL-2003-R */
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%token  HELP_SYM
%token  HEX_NUM
%token  HIGH_PRIORITY
%token  HOSTS_SYM
%token  HOUR_MICROSECOND_SYM
%token  HOUR_MINUTE_SYM
%token  HOUR_SECOND_SYM
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%token  HOUR_SYM                      /* SQL-2003-R */
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%token  IDENT
%token  IDENTIFIED_SYM
%token  IDENT_QUOTED
%token  IF
%token  IGNORE_SYM
%token  IMPORT
%token  INDEXES
%token  INDEX_SYM
%token  INFILE
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%token  INITIAL_SIZE_SYM
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%token  INNER_SYM                     /* SQL-2003-R */
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%token  INNOBASE_SYM
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%token  INOUT_SYM                     /* SQL-2003-R */
%token  INSENSITIVE_SYM               /* SQL-2003-R */
%token  INSERT                        /* SQL-2003-R */
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%token  INSERT_METHOD
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%token  INSTALL_SYM
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%token  INTERVAL_SYM                  /* SQL-2003-R */
%token  INTO                          /* SQL-2003-R */
%token  INT_SYM                       /* SQL-2003-R */
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%token  INVOKER_SYM
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%token  IN_SYM                        /* SQL-2003-R */
%token  IS                            /* SQL-2003-R */
%token  ISOLATION                     /* SQL-2003-R */
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%token  ISSUER_SYM
%token  ITERATE_SYM
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%token  JOIN_SYM                      /* SQL-2003-R */
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%token  KEYS
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%token  KEY_BLOCK_SIZE
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%token  KEY_SYM                       /* SQL-2003-N */
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%token  KILL_SYM
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%token  LANGUAGE_SYM                  /* SQL-2003-R */
%token  LAST_SYM                      /* SQL-2003-N */
%token  LE                            /* OPERATOR */
%token  LEADING                       /* SQL-2003-R */
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%token  LEAVES
%token  LEAVE_SYM
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%token  LEFT                          /* SQL-2003-R */
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%token  LESS_SYM
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%token  LEVEL_SYM
%token  LEX_HOSTNAME
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%token  LIKE                          /* SQL-2003-R */
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%token  LIMIT
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%token  LINEAR_SYM
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%token  LINES
%token  LINESTRING
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%token  LIST_SYM
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%token  LOAD
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%token  LOCAL_SYM                     /* SQL-2003-R */
%token  LOCATOR_SYM                   /* SQL-2003-N */
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%token  LOCKS_SYM
%token  LOCK_SYM
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%token  LOGFILE_SYM
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%token  LOGS_SYM
%token  LONGBLOB
%token  LONGTEXT
%token  LONG_NUM
%token  LONG_SYM
%token  LOOP_SYM
%token  LOW_PRIORITY
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%token  LT                            /* OPERATOR */
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%token  MASTER_CONNECT_RETRY_SYM
%token  MASTER_HOST_SYM
%token  MASTER_LOG_FILE_SYM
%token  MASTER_LOG_POS_SYM
%token  MASTER_PASSWORD_SYM
%token  MASTER_PORT_SYM
%token  MASTER_SERVER_ID_SYM
%token  MASTER_SSL_CAPATH_SYM
%token  MASTER_SSL_CA_SYM
%token  MASTER_SSL_CERT_SYM
%token  MASTER_SSL_CIPHER_SYM
%token  MASTER_SSL_KEY_SYM
%token  MASTER_SSL_SYM
%token  MASTER_SYM
%token  MASTER_USER_SYM
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%token  MATCH                         /* SQL-2003-R */
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%token  MAX_CONNECTIONS_PER_HOUR
%token  MAX_QUERIES_PER_HOUR
%token  MAX_ROWS
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%token  MAX_SIZE_SYM
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%token  MAX_SYM                       /* SQL-2003-N */
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%token  MAX_UPDATES_PER_HOUR
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%token  MAX_USER_CONNECTIONS_SYM
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%token  MAX_VALUE_SYM                 /* SQL-2003-N */
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%token  MEDIUMBLOB
%token  MEDIUMINT
%token  MEDIUMTEXT
%token  MEDIUM_SYM
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%token  MEMORY_SYM
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%token  MERGE_SYM                     /* SQL-2003-R */
%token  MICROSECOND_SYM               /* MYSQL-FUNC */
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%token  MIGRATE_SYM
%token  MINUTE_MICROSECOND_SYM
%token  MINUTE_SECOND_SYM
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%token  MINUTE_SYM                    /* SQL-2003-R */
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%token  MIN_ROWS
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%token  MIN_SYM                       /* SQL-2003-N */
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%token  MODE_SYM
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%token  MODIFIES_SYM                  /* SQL-2003-R */
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%token  MODIFY_SYM
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%token  MOD_SYM                       /* SQL-2003-N */
%token  MONTH_SYM                     /* SQL-2003-R */
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%token  MULTILINESTRING
%token  MULTIPOINT
%token  MULTIPOLYGON
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%token  MUTEX_SYM
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%token  NAMES_SYM                     /* SQL-2003-N */
%token  NAME_SYM                      /* SQL-2003-N */
%token  NATIONAL_SYM                  /* SQL-2003-R */
%token  NATURAL                       /* SQL-2003-R */
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%token  NCHAR_STRING
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%token  NCHAR_SYM                     /* SQL-2003-R */
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%token  NDBCLUSTER_SYM
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%token  NE                            /* OPERATOR */
%token  NEG
%token  NEW_SYM                       /* SQL-2003-R */
%token  NEXT_SYM                      /* SQL-2003-N */
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%token  NODEGROUP_SYM
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%token  NONE_SYM                      /* SQL-2003-R */
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%token  NOT2_SYM
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%token  NOT_SYM                       /* SQL-2003-R */
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%token  NOW_SYM
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%token  NO_SYM                        /* SQL-2003-R */
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%token  NO_WAIT_SYM
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%token  NO_WRITE_TO_BINLOG
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%token  NULL_SYM                      /* SQL-2003-R */
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%token  NUM
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%token  NUMERIC_SYM                   /* SQL-2003-R */
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%token  NVARCHAR_SYM
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%token  OFFSET_SYM
%token  OLD_PASSWORD
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%token  ON                            /* SQL-2003-R */
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%token  ONE_SHOT_SYM
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%token  ONE_SYM
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%token  OPEN_SYM                      /* SQL-2003-R */
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%token  OPTIMIZE
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%token  OPTION                        /* SQL-2003-N */
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%token  OPTIONALLY
%token  OR2_SYM
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%token  ORDER_SYM                     /* SQL-2003-R */
%token  OR_OR_SYM                     /* OPERATOR */
%token  OR_SYM                        /* SQL-2003-R */
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%token  OUTER
%token  OUTFILE
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%token  OUT_SYM                       /* SQL-2003-R */
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%token  PACK_KEYS_SYM
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%token  PARAM_MARKER
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%token  PARSER_SYM
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%token  PARTIAL                       /* SQL-2003-N */
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%token  PARTITIONING_SYM
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%token  PARTITIONS_SYM
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%token  PARTITION_SYM                 /* SQL-2003-R */
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%token  PASSWORD
%token  PHASE_SYM
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%token  PLUGINS_SYM
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%token  PLUGIN_SYM
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%token  POINT_SYM
%token  POLYGON
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%token  POSITION_SYM                  /* SQL-2003-N */
%token  PRECISION                     /* SQL-2003-R */
%token  PREPARE_SYM                   /* SQL-2003-R */
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%token  PRESERVE_SYM
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%token  PREV_SYM
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%token  PRIMARY_SYM                   /* SQL-2003-R */
%token  PRIVILEGES                    /* SQL-2003-N */
%token  PROCEDURE                     /* SQL-2003-R */
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%token  PROCESS
%token  PROCESSLIST_SYM
%token  PURGE
%token  QUARTER_SYM
%token  QUERY_SYM
%token  QUICK
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%token  RANGE_SYM                     /* SQL-2003-R */
%token  READS_SYM                     /* SQL-2003-R */
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%token  READ_ONLY_SYM
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%token  READ_SYM                      /* SQL-2003-N */
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%token  READ_WRITE_SYM
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%token  REAL                          /* SQL-2003-R */
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%token  REBUILD_SYM
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%token  RECOVER_SYM
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%token  REDOFILE_SYM
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%token  REDO_BUFFER_SIZE_SYM
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%token  REDUNDANT_SYM
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%token  REFERENCES                    /* SQL-2003-R */
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%token  REGEXP
%token  RELAY_LOG_FILE_SYM
%token  RELAY_LOG_POS_SYM
%token  RELAY_THREAD
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%token  RELEASE_SYM                   /* SQL-2003-R */
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%token  RELOAD
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%token  REMOVE_SYM
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%token  RENAME
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%token  REORGANIZE_SYM
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%token  REPAIR
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%token  REPEATABLE_SYM                /* SQL-2003-N */
%token  REPEAT_SYM                    /* MYSQL-FUNC */
%token  REPLACE                       /* MYSQL-FUNC */
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%token  REPLICATION
%token  REQUIRE_SYM
%token  RESET_SYM
%token  RESOURCES
%token  RESTORE_SYM
%token  RESTRICT
%token  RESUME_SYM
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%token  RETURNS_SYM                   /* SQL-2003-R */
%token  RETURN_SYM                    /* SQL-2003-R */
%token  REVOKE                        /* SQL-2003-R */
%token  RIGHT                         /* SQL-2003-R */
%token  ROLLBACK_SYM                  /* SQL-2003-R */
%token  ROLLUP_SYM                    /* SQL-2003-R */
%token  ROUTINE_SYM                   /* SQL-2003-N */
%token  ROWS_SYM                      /* SQL-2003-R */
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%token  ROW_FORMAT_SYM
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%token  ROW_SYM                       /* SQL-2003-R */
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%token  RTREE_SYM
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%token  SAVEPOINT_SYM                 /* SQL-2003-R */
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%token  SCHEDULE_SYM
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%token  SECOND_MICROSECOND_SYM
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%token  SECOND_SYM                    /* SQL-2003-R */
%token  SECURITY_SYM                  /* SQL-2003-N */
%token  SELECT_SYM                    /* SQL-2003-R */
%token  SENSITIVE_SYM                 /* FUTURE-USE */
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%token  SEPARATOR_SYM
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%token  SERIALIZABLE_SYM              /* SQL-2003-N */
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%token  SERIAL_SYM
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%token  SESSION_SYM                   /* SQL-2003-N */
%token  SET                           /* SQL-2003-R */
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%token  SET_VAR
%token  SHARE_SYM
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%token  SHIFT_LEFT                    /* OPERATOR */
%token  SHIFT_RIGHT                   /* OPERATOR */
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%token  SHOW
%token  SHUTDOWN
%token  SIGNED_SYM
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%token  SIMPLE_SYM                    /* SQL-2003-N */
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%token  SLAVE
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%token  SMALLINT                      /* SQL-2003-R */
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%token  SNAPSHOT_SYM
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%token  SONAME_SYM
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%token  SOUNDS_SYM
%token  SPATIAL_SYM
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%token  SPECIFIC_SYM                  /* SQL-2003-R */
%token  SQLEXCEPTION_SYM              /* SQL-2003-R */
%token  SQLSTATE_SYM                  /* SQL-2003-R */
%token  SQLWARNING_SYM                /* SQL-2003-R */
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%token  SQL_BIG_RESULT
%token  SQL_BUFFER_RESULT
%token  SQL_CACHE_SYM
%token  SQL_CALC_FOUND_ROWS
%token  SQL_NO_CACHE_SYM
%token  SQL_SMALL_RESULT
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%token  SQL_SYM                       /* SQL-2003-R */
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%token  SQL_THREAD
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%token  SSL_SYM
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%token  STARTING
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%token  STARTS_SYM
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%token  START_SYM                     /* SQL-2003-R */
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%token  STATUS_SYM
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%token  STDDEV_SAMP_SYM               /* SQL-2003-N */
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%token  STD_SYM
%token  STOP_SYM
%token  STORAGE_SYM
%token  STRAIGHT_JOIN
%token  STRING_SYM
%token  SUBDATE_SYM
%token  SUBJECT_SYM
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%token  SUBPARTITIONS_SYM
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%token  SUBPARTITION_SYM
%token  SUBSTRING                     /* SQL-2003-N */
%token  SUM_SYM                       /* SQL-2003-N */
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%token  SUPER_SYM
%token  SUSPEND_SYM
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%token  SYSDATE
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%token  TABLES
%token  TABLESPACE
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%token  TABLE_REF_PRIORITY
%token  TABLE_SYM                     /* SQL-2003-R */
%token  TEMPORARY                     /* SQL-2003-N */
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%token  TEMPTABLE_SYM
%token  TERMINATED
%token  TEXT_STRING
%token  TEXT_SYM
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%token  THAN_SYM
%token  THEN_SYM                      /* SQL-2003-R */
%token  TIMESTAMP                     /* SQL-2003-R */
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%token  TIMESTAMP_ADD
%token  TIMESTAMP_DIFF
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%token  TIME_SYM                      /* SQL-2003-R */
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%token  TINYBLOB
%token  TINYINT
%token  TINYTEXT
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%token  TO_SYM                        /* SQL-2003-R */
%token  TRAILING                      /* SQL-2003-R */
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%token  TRANSACTION_SYM
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%token  TRIGGERS_SYM
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%token  TRIGGER_SYM                   /* SQL-2003-R */
%token  TRIM                          /* SQL-2003-N */
%token  TRUE_SYM                      /* SQL-2003-R */
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%token  TRUNCATE_SYM
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%token  TYPES_SYM
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%token  TYPE_SYM                      /* SQL-2003-N */
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%token  UDF_RETURNS_SYM
%token  ULONGLONG_NUM
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%token  UNCOMMITTED_SYM               /* SQL-2003-N */
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%token  UNDEFINED_SYM
%token  UNDERSCORE_CHARSET
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%token  UNDOFILE_SYM
%token  UNDO_BUFFER_SIZE_SYM
%token  UNDO_SYM                      /* FUTURE-USE */
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%token  UNICODE_SYM
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%token  UNINSTALL_SYM
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%token  UNION_SYM                     /* SQL-2003-R */
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%token  UNIQUE_SYM
%token  UNIQUE_USERS
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%token  UNKNOWN_SYM                   /* SQL-2003-R */
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%token  UNLOCK_SYM
%token  UNSIGNED
%token  UNTIL_SYM
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%token  UPDATE_SYM                    /* SQL-2003-R */
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%token  UPGRADE_SYM
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%token  USAGE                         /* SQL-2003-N */
%token  USER                          /* SQL-2003-R */
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%token  USE_FRM
%token  USE_SYM
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%token  USING                         /* SQL-2003-R */
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%token  UTC_DATE_SYM
%token  UTC_TIMESTAMP_SYM
%token  UTC_TIME_SYM
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%token  VALUES                        /* SQL-2003-R */
%token  VALUE_SYM                     /* SQL-2003-R */
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%token  VARBINARY
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%token  VARCHAR                       /* SQL-2003-R */
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%token  VARIABLES
%token  VARIANCE_SYM
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%token  VARYING                       /* SQL-2003-R */
%token  VAR_SAMP_SYM
%token  VIEW_SYM                      /* SQL-2003-N */
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%token  WAIT_SYM
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%token  WARNINGS
%token  WEEK_SYM
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%token  WHEN_SYM                      /* SQL-2003-R */
%token  WHERE                         /* SQL-2003-R */
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%token  WHILE_SYM
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%token  WITH                          /* SQL-2003-R */
%token  WORK_SYM                      /* SQL-2003-N */
%token  WRITE_SYM                     /* SQL-2003-N */
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%token  X509_SYM
%token  XA_SYM
%token  XOR
%token  YEAR_MONTH_SYM
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%token  YEAR_SYM                      /* SQL-2003-R */
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%token  ZEROFILL
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%left   JOIN_SYM INNER_SYM STRAIGHT_JOIN CROSS LEFT RIGHT
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/* A dummy token to force the priority of table_ref production in a join. */
%left   TABLE_REF_PRIORITY
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%left   SET_VAR
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%left	OR_OR_SYM OR_SYM OR2_SYM XOR
%left	AND_SYM AND_AND_SYM
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%left	BETWEEN_SYM CASE_SYM WHEN_SYM THEN_SYM ELSE
%left	EQ EQUAL_SYM GE GT_SYM LE LT NE IS LIKE REGEXP IN_SYM
%left	'|'
%left	'&'
%left	SHIFT_LEFT SHIFT_RIGHT
%left	'-' '+'
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%left	'*' '/' '%' DIV_SYM MOD_SYM
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%left   '^'
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%left	NEG '~'
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%right	NOT_SYM NOT2_SYM
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%right	BINARY COLLATE_SYM
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%type <lex_str>
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        IDENT IDENT_QUOTED TEXT_STRING DECIMAL_NUM FLOAT_NUM NUM LONG_NUM HEX_NUM
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	LEX_HOSTNAME ULONGLONG_NUM field_ident select_alias ident ident_or_text
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        UNDERSCORE_CHARSET IDENT_sys TEXT_STRING_sys TEXT_STRING_literal
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	NCHAR_STRING opt_component key_cache_name
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        sp_opt_label BIN_NUM label_ident TEXT_STRING_filesystem
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%type <lex_str_ptr>
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	opt_table_alias
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%type <table>
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	table_ident table_ident_nodb references xid
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%type <simple_string>
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	remember_name remember_end opt_ident opt_db text_or_password
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	opt_constraint constraint ident_or_empty
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%type <string>
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	text_string opt_gconcat_separator
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%type <num>
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	type int_type real_type order_dir lock_option
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	udf_type if_exists opt_local opt_table_options table_options
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        table_option opt_if_not_exists opt_no_write_to_binlog
        delete_option opt_temporary all_or_any opt_distinct
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        opt_ignore_leaves fulltext_options spatial_type union_option
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        start_transaction_opts opt_chain opt_release
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        union_opt select_derived_init option_type2
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        opt_natural_language_mode opt_query_expansion
        opt_ev_status opt_ev_on_completion ev_on_completion opt_ev_comment
        ev_alter_on_schedule_completion opt_ev_rename_to opt_ev_sql_stmt
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%type <ulong_num>
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	ulong_num real_ulong_num merge_insert_types
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%type <ulonglong_number>
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	ulonglong_num real_ulonglong_num size_number
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%type <p_elem_value>
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        part_bit_expr

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%type <lock_type>
	replace_lock_option opt_low_priority insert_lock_option load_data_lock

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%type <item>
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	literal text_literal insert_ident order_ident
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	simple_ident select_item2 expr opt_expr opt_else sum_expr in_sum_expr
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	variable variable_aux bool_term bool_factor bool_test bool_pri 
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	predicate bit_expr bit_term bit_factor value_expr term factor
	table_wild simple_expr udf_expr
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	expr_or_default set_expr_or_default interval_expr
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	param_marker geometry_function
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	signed_literal now_or_signed_literal opt_escape
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	sp_opt_default
	simple_ident_nospvar simple_ident_q
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        field_or_var limit_option
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        part_func_expr
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        function_call_keyword
        function_call_nonkeyword
        function_call_generic
        function_call_conflict
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%type <item_num>
	NUM_literal
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%type <item_list>
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	expr_list udf_expr_list udf_expr_list2 when_list
	ident_list ident_list_arg
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        expr_list_opt
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%type <var_type>
        option_type opt_var_type opt_var_ident_type

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%type <key_type>
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	key_type opt_unique_or_fulltext constraint_key_type
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%type <key_alg>
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	btree_or_rtree
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%type <string_list>
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	key_usage_list using_list
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%type <key_part>
	key_part

%type <table_list>
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	join_table_list  join_table
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        table_factor table_ref
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        select_derived derived_table_list
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%type <date_time_type> date_time_type;
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%type <interval> interval

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%type <interval_time_st> interval_time_st

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%type <db_type> storage_engines
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%type <row_type> row_types

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%type <tx_isolation> isolation_types
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%type <ha_rkey_mode> handler_rkey_mode

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%type <cast_type> cast_type
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%type <udf_type> udf_func_type

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%type <symbol> keyword keyword_sp
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%type <lex_user> user grant_user
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%type <charset>
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	opt_collate
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	charset_name
	charset_name_or_default
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	old_or_new_charset_name
	old_or_new_charset_name_or_default
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	collation_name
	collation_name_or_default
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%type <variable> internal_variable_name

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%type <select_lex> subselect subselect_init
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	get_select_lex
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%type <boolfunc2creator> comp_op

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%type <NONE>
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	query verb_clause create change select do drop insert replace insert2
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	insert_values update delete truncate rename
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	show describe load alter optimize keycache preload flush
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	reset purge begin commit rollback savepoint release
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	slave master_def master_defs master_file_def slave_until_opts
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	repair restore backup analyze check start checksum
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	field_list field_list_item field_spec kill column_def key_def
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	keycache_list assign_to_keycache preload_list preload_keys
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	select_item_list select_item values_list no_braces
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	opt_limit_clause delete_limit_clause fields opt_values values
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	procedure_list procedure_list2 procedure_item
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	when_list2 expr_list2 udf_expr_list3 handler
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	opt_precision opt_ignore opt_column opt_restrict
	grant revoke set lock unlock string_list field_options field_option
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	field_opt_list opt_binary table_lock_list table_lock
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	ref_list opt_on_delete opt_on_delete_list opt_on_delete_item use
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	opt_delete_options opt_delete_option varchar nchar nvarchar
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	opt_outer table_list table_name opt_option opt_place
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	opt_attribute opt_attribute_list attribute column_list column_list_id
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	opt_column_list grant_privileges grant_ident grant_list grant_option
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	object_privilege object_privilege_list user_list rename_list
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	clear_privileges flush_options flush_option
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	equal optional_braces opt_key_definition key_usage_list2
	opt_mi_check_type opt_to mi_check_types normal_join
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	db_to_db table_to_table_list table_to_table opt_table_list opt_as
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	handler_rkey_function handler_read_or_scan
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	single_multi table_wild_list table_wild_one opt_wild
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	union_clause union_list
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	precision subselect_start opt_and charset
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	subselect_end select_var_list select_var_list_init help opt_len
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	opt_extended_describe
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        prepare prepare_src execute deallocate
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	statement sp_suid
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	sp_c_chistics sp_a_chistics sp_chistic sp_c_chistic xa
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        load_data opt_field_or_var_spec fields_or_vars opt_load_data_set_spec
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        definer view_replace_or_algorithm view_replace view_algorithm_opt
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        view_algorithm view_or_trigger_or_sp_or_event
        view_or_trigger_or_sp_or_event_tail
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        view_suid view_tail view_list_opt view_list view_select
        view_check_option trigger_tail sp_tail
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        install uninstall partition_entry binlog_base64_event
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	init_key_options key_options key_opts key_opt key_using_alg
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END_OF_INPUT
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%type <NONE> call sp_proc_stmts sp_proc_stmts1 sp_proc_stmt
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%type <NONE> sp_proc_stmt_statement sp_proc_stmt_return
%type <NONE> sp_proc_stmt_if sp_proc_stmt_case_simple sp_proc_stmt_case
%type <NONE> sp_labeled_control sp_proc_stmt_unlabeled sp_proc_stmt_leave
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%type <NONE> sp_proc_stmt_iterate
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%type <NONE> sp_proc_stmt_open sp_proc_stmt_fetch sp_proc_stmt_close

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%type <num>  sp_decl_idents sp_opt_inout sp_handler_type sp_hcond_list
%type <spcondtype> sp_cond sp_hcond
%type <spblock> sp_decls sp_decl
%type <lex> sp_cursor_stmt
%type <spname> sp_name

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%type <NONE>
	'-' '+' '*' '/' '%' '(' ')'
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	',' '!' '{' '}' '&' '|' AND_SYM OR_SYM OR_OR_SYM BETWEEN_SYM CASE_SYM
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	THEN_SYM WHEN_SYM DIV_SYM MOD_SYM OR2_SYM AND_AND_SYM
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%%


query:
	END_OF_INPUT
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	{
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	   THD *thd= YYTHD;
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	   if (!thd->bootstrap &&
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	      (!(thd->lex->select_lex.options & OPTION_FOUND_COMMENT)))
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	   {
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	     my_message(ER_EMPTY_QUERY, ER(ER_EMPTY_QUERY), MYF(0));
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	     YYABORT;
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	   }
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	   else
	   {
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	     thd->lex->sql_command= SQLCOM_EMPTY_QUERY;
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	   }
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	}
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	| verb_clause END_OF_INPUT {};
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verb_clause:
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	  statement
	| begin
	;

/* Verb clauses, except begin */
statement:
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	  alter
	| analyze
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	| backup
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	| binlog_base64_event
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	| call
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	| change
	| check
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	| checksum
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	| commit
	| create
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        | deallocate
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	| delete
	| describe
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	| do
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	| drop
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        | execute
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	| flush
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	| grant
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	| handler
	| help
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	| insert
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        | install
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	| kill
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	| load
	| lock
	| optimize
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        | keycache
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        | partition_entry
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	| preload
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        | prepare
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	| purge
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	| release
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	| rename
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	| repair
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	| replace
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	| reset
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	| restore
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	| revoke
	| rollback
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	| savepoint
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	| select
	| set
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	| show
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	| slave
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	| start
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	| truncate
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        | uninstall
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	| unlock
	| update
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	| use
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	| xa
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        ;
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deallocate:
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        deallocate_or_drop PREPARE_SYM ident
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        {
          THD *thd=YYTHD;
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          LEX *lex= thd->lex;
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          if (lex->stmt_prepare_mode)
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          {
            yyerror(ER(ER_SYNTAX_ERROR));
            YYABORT;
          }
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          lex->sql_command= SQLCOM_DEALLOCATE_PREPARE;
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          lex->prepared_stmt_name= $3;
        };

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deallocate_or_drop:
	DEALLOCATE_SYM |
	DROP
	;


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prepare:
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        PREPARE_SYM ident FROM prepare_src
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        {
          THD *thd=YYTHD;
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          LEX *lex= thd->lex;
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          if (lex->stmt_prepare_mode)
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          {
            yyerror(ER(ER_SYNTAX_ERROR));
            YYABORT;
          }
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          lex->sql_command= SQLCOM_PREPARE;
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          lex->prepared_stmt_name= $2;
        };

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prepare_src:
        TEXT_STRING_sys
        {
          THD *thd=YYTHD;
          LEX *lex= thd->lex;
          lex->prepared_stmt_code= $1;
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          lex->prepared_stmt_code_is_varref= FALSE;
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        }
        | '@' ident_or_text
        {
          THD *thd=YYTHD;
          LEX *lex= thd->lex;
          lex->prepared_stmt_code= $2;
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          lex->prepared_stmt_code_is_varref= TRUE;
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        };
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execute:
        EXECUTE_SYM ident
        {
          THD *thd=YYTHD;
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          LEX *lex= thd->lex;
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          if (lex->stmt_prepare_mode)
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          {
            yyerror(ER(ER_SYNTAX_ERROR));
            YYABORT;
          }
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          lex->sql_command= SQLCOM_EXECUTE;
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          lex->prepared_stmt_name= $2;
        }
        execute_using
        {}
        ;

execute_using:
        /* nothing */
        | USING execute_var_list
        ;

execute_var_list:
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        execute_var_list ',' execute_var_ident
        | execute_var_ident
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        ;

execute_var_ident: '@' ident_or_text
        {
          LEX *lex=Lex;
          LEX_STRING *lexstr= (LEX_STRING*)sql_memdup(&$2, sizeof(LEX_STRING));
          if (!lexstr || lex->prepared_stmt_params.push_back(lexstr))
              YYABORT;
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        }
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        ;

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/* help */

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help:
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       HELP_SYM
       {
         if (Lex->sphead)
         {
           my_error(ER_SP_BADSTATEMENT, MYF(0), "HELP");
           YYABORT;
         }
       }
       ident_or_text
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       {
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	  LEX *lex= Lex;
	  lex->sql_command= SQLCOM_HELP;
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	  lex->help_arg= $3.str;
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       };
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/* change master */

change:
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       CHANGE MASTER_SYM TO_SYM
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        {
	  LEX *lex = Lex;
	  lex->sql_command = SQLCOM_CHANGE_MASTER;
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	  bzero((char*) &lex->mi, sizeof(lex->mi));
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        }
       master_defs
	{}
       ;
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master_defs:
       master_def
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       | master_defs ',' master_def;
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master_def:
       MASTER_HOST_SYM EQ TEXT_STRING_sys
       {
	 Lex->mi.host = $3.str;
       }
       |
       MASTER_USER_SYM EQ TEXT_STRING_sys
       {
	 Lex->mi.user = $3.str;
       }
       |
       MASTER_PASSWORD_SYM EQ TEXT_STRING_sys
       {
	 Lex->mi.password = $3.str;
       }
       |
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       MASTER_PORT_SYM EQ ulong_num
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       {
	 Lex->mi.port = $3;
       }
       |
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       MASTER_CONNECT_RETRY_SYM EQ ulong_num
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       {
	 Lex->mi.connect_retry = $3;
       }
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       | MASTER_SSL_SYM EQ ulong_num
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         {
           Lex->mi.ssl= $3 ? 
               LEX_MASTER_INFO::SSL_ENABLE : LEX_MASTER_INFO::SSL_DISABLE;
         }
       | MASTER_SSL_CA_SYM EQ TEXT_STRING_sys
         {
           Lex->mi.ssl_ca= $3.str;
         }
       | MASTER_SSL_CAPATH_SYM EQ TEXT_STRING_sys
         {
           Lex->mi.ssl_capath= $3.str;
         }
       | MASTER_SSL_CERT_SYM EQ TEXT_STRING_sys
         {
           Lex->mi.ssl_cert= $3.str;
         }
       | MASTER_SSL_CIPHER_SYM EQ TEXT_STRING_sys
         {
           Lex->mi.ssl_cipher= $3.str;
         }
       | MASTER_SSL_KEY_SYM EQ TEXT_STRING_sys
         {
           Lex->mi.ssl_key= $3.str;
	 }
       |
         master_file_def
       ;

master_file_def:
       MASTER_LOG_FILE_SYM EQ TEXT_STRING_sys
       {
	 Lex->mi.log_file_name = $3.str;
       }
       | MASTER_LOG_POS_SYM EQ ulonglong_num
         {
           Lex->mi.pos = $3;
           /* 
              If the user specified a value < BIN_LOG_HEADER_SIZE, adjust it
              instead of causing subsequent errors. 
              We need to do it in this file, because only there we know that 
              MASTER_LOG_POS has been explicitely specified. On the contrary
              in change_master() (sql_repl.cc) we cannot distinguish between 0
              (MASTER_LOG_POS explicitely specified as 0) and 0 (unspecified),
              whereas we want to distinguish (specified 0 means "read the binlog
              from 0" (4 in fact), unspecified means "don't change the position
              (keep the preceding value)").
           */
           Lex->mi.pos = max(BIN_LOG_HEADER_SIZE, Lex->mi.pos);
         }
       | RELAY_LOG_FILE_SYM EQ TEXT_STRING_sys
         {
           Lex->mi.relay_log_name = $3.str;
         }
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       | RELAY_LOG_POS_SYM EQ ulong_num
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         {
           Lex->mi.relay_log_pos = $3;
           /* Adjust if < BIN_LOG_HEADER_SIZE (same comment as Lex->mi.pos) */
           Lex->mi.relay_log_pos = max(BIN_LOG_HEADER_SIZE, Lex->mi.relay_log_pos);
         }
       ;

/* create a table */

create:
	CREATE opt_table_options TABLE_SYM opt_if_not_exists table_ident
	{
	  THD *thd= YYTHD;
	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_CREATE_TABLE;
	  if (!lex->select_lex.add_table_to_list(thd, $5, NULL,
						 TL_OPTION_UPDATING,
						 (using_update_log ?
						  TL_READ_NO_INSERT:
						  TL_READ)))
	    YYABORT;
	  lex->create_list.empty();
	  lex->key_list.empty();
	  lex->col_list.empty();
	  lex->change=NullS;
	  bzero((char*) &lex->create_info,sizeof(lex->create_info));
	  lex->create_info.options=$2 | $4;
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	  lex->create_info.db_type= lex->thd->variables.table_type;
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	  lex->create_info.default_table_charset= NULL;
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	  lex->name= 0;
         lex->like_name= 0;
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	}
	create2
	  { Lex->current_select= &Lex->select_lex; }
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	| CREATE opt_unique_or_fulltext INDEX_SYM ident key_alg ON
	  table_ident
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	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_CREATE_INDEX;
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	    if (!lex->current_select->add_table_to_list(lex->thd, $7,
							NULL,
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							TL_OPTION_UPDATING))
	      YYABORT;
	    lex->create_list.empty();
	    lex->key_list.empty();
	    lex->col_list.empty();
	    lex->change=NullS;
	  }
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	   '(' key_list ')' key_options
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	  {
	    LEX *lex=Lex;
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	    if ($2 != Key::FULLTEXT && lex->key_create_info.parser_name.str)
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	    {
	      yyerror(ER(ER_SYNTAX_ERROR));
	      YYABORT;
	    }
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	    lex->key_list.push_back(new Key($2, $4.str, &lex->key_create_info, 0,
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					   lex->col_list));
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	    lex->col_list.empty();
	  }
	| CREATE DATABASE opt_if_not_exists ident
	  {
             Lex->create_info.default_table_charset= NULL;
             Lex->create_info.used_fields= 0;
          }
	  opt_create_database_options
	  {
	    LEX *lex=Lex;
	    lex->sql_command=SQLCOM_CREATE_DB;
	    lex->name=$4.str;
            lex->create_info.options=$3;
	  }
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	| CREATE
	  {
            Lex->create_view_mode= VIEW_CREATE_NEW;
            Lex->create_view_algorithm= VIEW_ALGORITHM_UNDEFINED;
            Lex->create_view_suid= TRUE;
	  }
	  view_or_trigger_or_sp_or_event
	  {}
	| CREATE USER clear_privileges grant_list
	  {
	    Lex->sql_command = SQLCOM_CREATE_USER;
          }
	| CREATE LOGFILE_SYM GROUP logfile_group_info 
          {
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            Lex->alter_tablespace_info->ts_cmd_type= CREATE_LOGFILE_GROUP;
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          }
        | CREATE TABLESPACE tablespace_info
          {
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            Lex->alter_tablespace_info->ts_cmd_type= CREATE_TABLESPACE;
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          }
	;


event_tail:
          EVENT_SYM opt_if_not_exists sp_name
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          /*
             BE CAREFUL when you add a new rule to update the block where
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             YYTHD->client_capabilities is set back to original value
          */
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          {
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            Lex->create_info.options= $2;
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            if (!(Lex->event_parse_data= Event_parse_data::new_instance(YYTHD)))
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              YYABORT;
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            Lex->event_parse_data->identifier= $3;
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            /*
              We have to turn of CLIENT_MULTI_QUERIES while parsing a
              stored procedure, otherwise yylex will chop it into pieces
              at each ';'.
            */
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            $<ulong_num>$= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
            YYTHD->client_capabilities &= (~CLIENT_MULTI_QUERIES);

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            Lex->sql_command= SQLCOM_CREATE_EVENT;
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            /* We need that for disallowing subqueries */
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          }
          ON SCHEDULE_SYM ev_schedule_time
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          opt_ev_on_completion
          opt_ev_status
          opt_ev_comment
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          DO_SYM ev_sql_stmt
          {
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            /*
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              Restore flag if it was cleared above
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              $1 - EVENT_SYM
              $2 - opt_if_not_exists
              $3 - sp_name
              $4 - the block above
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            */
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            YYTHD->client_capabilities |= $<ulong_num>4;
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            /*
              sql_command is set here because some rules in ev_sql_stmt
              can overwrite it
            */
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            Lex->sql_command= SQLCOM_CREATE_EVENT;
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          }
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      ;
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ev_schedule_time: EVERY_SYM expr interval
	  {
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            Lex->event_parse_data->item_expression= $2;
            Lex->event_parse_data->interval= $3;
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          }
          ev_starts
          ev_ends
        | AT_SYM expr
          {
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            Lex->event_parse_data->item_execute_at= $2;
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          }
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        ;
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opt_ev_status: /* empty */ { $$= 0; }
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        | ENABLE_SYM
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          {
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            Lex->event_parse_data->status= Event_parse_data::ENABLED;
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            $$= 1;
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          }
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        | DISABLE_SYM
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          {
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            Lex->event_parse_data->status= Event_parse_data::DISABLED;
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            $$= 1;
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          }
      ;

ev_starts: /* empty */
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          {
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            Lex->event_parse_data->item_starts= new Item_func_now_local();
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          }
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        | STARTS_SYM expr
          {
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            Lex->event_parse_data->item_starts= $2;
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          }
      ;

ev_ends: /* empty */
        | ENDS_SYM expr
          {
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            Lex->event_parse_data->item_ends= $2;
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          }
      ;

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opt_ev_on_completion: /* empty */ { $$= 0; }
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        | ev_on_completion
      ;

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ev_on_completion:
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          ON COMPLETION_SYM PRESERVE_SYM
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          {
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            Lex->event_parse_data->on_completion=
                                  Event_parse_data::ON_COMPLETION_PRESERVE;
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            $$= 1;
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          }
        | ON COMPLETION_SYM NOT_SYM PRESERVE_SYM
          {
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            Lex->event_parse_data->on_completion=
                                  Event_parse_data::ON_COMPLETION_DROP;
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            $$= 1;
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          }
      ;
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opt_ev_comment: /* empty */ { $$= 0; }
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        | COMMENT_SYM TEXT_STRING_sys
          {
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            Lex->comment= Lex->event_parse_data->comment= $2;
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            $$= 1;
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          }
      ;

ev_sql_stmt:
          {
            LEX *lex= Lex;
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            /*
              This stops the following :
              - CREATE EVENT ... DO CREATE EVENT ...;
              - ALTER  EVENT ... DO CREATE EVENT ...;
              - CREATE EVENT ... DO ALTER EVENT DO ....;
              - CREATE PROCEDURE ... BEGIN CREATE EVENT ... END|
              This allows:
              - CREATE EVENT ... DO DROP EVENT yyy;
              - CREATE EVENT ... DO ALTER EVENT yyy;
                (the nested ALTER EVENT can have anything but DO clause)
              - ALTER  EVENT ... DO ALTER EVENT yyy;
                (the nested ALTER EVENT can have anything but DO clause)
              - ALTER  EVENT ... DO DROP EVENT yyy;
              - CREATE PROCEDURE ... BEGIN ALTER EVENT ... END|
                (the nested ALTER EVENT can have anything but DO clause)
              - CREATE PROCEDURE ... BEGIN DROP EVENT ... END|
            */
            if (lex->sphead)
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            {
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              my_error(ER_EVENT_RECURSIVITY_FORBIDDEN, MYF(0));
              YYABORT;
            }
              
            if (!(lex->sphead= new sp_head()))
              YYABORT;
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            lex->sphead->reset_thd_mem_root(YYTHD);
            lex->sphead->init(lex);
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            lex->sphead->init_sp_name(YYTHD, Lex->event_parse_data->identifier);
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            lex->sphead->m_type= TYPE_ENUM_PROCEDURE;
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            bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
            lex->sphead->m_chistics= &lex->sp_chistics;
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            lex->sphead->m_body_begin= lex->ptr;
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            Lex->event_parse_data->body_begin= lex->ptr;
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          }
          ev_sql_stmt_inner
          {
            LEX *lex=Lex;
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            /* return back to the original memory root ASAP */
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            lex->sphead->init_strings(YYTHD, lex);
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            lex->sphead->restore_thd_mem_root(YYTHD);
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            lex->sp_chistics.suid= SP_IS_SUID;  //always the definer!
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            Lex->event_parse_data->init_body(YYTHD);
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          }
      ;
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ev_sql_stmt_inner:
          sp_proc_stmt_statement
        | sp_proc_stmt_return
        | sp_proc_stmt_if
        | sp_proc_stmt_case_simple
        | sp_proc_stmt_case
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        | sp_labeled_control
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        | sp_proc_stmt_unlabeled
        | sp_proc_stmt_leave
        | sp_proc_stmt_iterate
        | sp_proc_stmt_open
        | sp_proc_stmt_fetch
        | sp_proc_stmt_close
      ;
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clear_privileges:
        /* Nothing */
        {
          LEX *lex=Lex;
          lex->users_list.empty();
          lex->columns.empty();
          lex->grant= lex->grant_tot_col= 0;
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	  lex->all_privileges= 0;
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          lex->select_lex.db= 0;
          lex->ssl_type= SSL_TYPE_NOT_SPECIFIED;
          lex->ssl_cipher= lex->x509_subject= lex->x509_issuer= 0;
          bzero((char *)&(lex->mqh),sizeof(lex->mqh));
        }
        ;

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sp_name:
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	  ident '.' ident
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	  {
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            if (!$1.str || check_db_name($1.str))
            {
	      my_error(ER_WRONG_DB_NAME, MYF(0), $1.str);
	      YYABORT;
	    }
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	    if (check_routine_name($3))
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            {
	      my_error(ER_SP_WRONG_NAME, MYF(0), $3.str);
	      YYABORT;
	    }
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	    $$= new sp_name($1, $3);
	    $$->init_qname(YYTHD);
	  }
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	| ident
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	  {
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            THD *thd= YYTHD;
            LEX_STRING db;
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	    if (check_routine_name($1))
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            {
	      my_error(ER_SP_WRONG_NAME, MYF(0), $1.str);
	      YYABORT;
	    }
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            if (thd->copy_db_to(&db.str, &db.length))
              YYABORT;
	    $$= new sp_name(db, $1);
            if ($$)
	      $$->init_qname(YYTHD);
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	  }
	;

create_function_tail:
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	  RETURNS_SYM udf_type SONAME_SYM TEXT_STRING_sys
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	  {
	    LEX *lex=Lex;
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            if (lex->definer != NULL)
            {
              /*
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                DEFINER is a concept meaningful when interpreting SQL code.
                UDF functions are compiled.
                Using DEFINER with UDF has therefore no semantic,
                and is considered a parsing error.
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              */
	      my_error(ER_WRONG_USAGE, MYF(0), "SONAME", "DEFINER");
              YYABORT;
            }
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	    lex->sql_command = SQLCOM_CREATE_FUNCTION;
	    lex->udf.name = lex->spname->m_name;
	    lex->udf.returns=(Item_result) $2;
	    lex->udf.dl=$4.str;
	  }
	| '('
	  {
	    LEX *lex= Lex;
	    sp_head *sp;

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            /* 
              First check if AGGREGATE was used, in that case it's a
              syntax error.
            */
            if (lex->udf.type == UDFTYPE_AGGREGATE)
            {
              my_error(ER_SP_NO_AGGREGATE, MYF(0));
              YYABORT;
            }

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	    if (lex->sphead)
	    {
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	      my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "FUNCTION");
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	      YYABORT;
	    }
	    /* Order is important here: new - reset - init */
	    sp= new sp_head();
	    sp->reset_thd_mem_root(YYTHD);
	    sp->init(lex);
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            sp->init_sp_name(YYTHD, lex->spname);
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	    sp->m_type= TYPE_ENUM_FUNCTION;
	    lex->sphead= sp;
	    /*
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	      We have to turn off CLIENT_MULTI_QUERIES while parsing a
	      stored procedure, otherwise yylex will chop it into pieces
	      at each ';'.
	    */
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            $<ulong_num>$= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
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	    YYTHD->client_capabilities &= ~CLIENT_MULTI_QUERIES;
	    lex->sphead->m_param_begin= lex->tok_start+1;
	  }
          sp_fdparam_list ')'
	  {
	    LEX *lex= Lex;

	    lex->sphead->m_param_end= lex->tok_start;
	  }
	  RETURNS_SYM
	  {
	    LEX *lex= Lex;
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	    lex->charset= NULL;
	    lex->length= lex->dec= NULL;
	    lex->interval_list.empty();
	    lex->type= 0;
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	  }
	  type
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
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            /*
              This was disabled in 5.1.12. See bug #20701
              When collation support in SP is implemented, then this test
              should be removed.
            */
            if (($8 == FIELD_TYPE_STRING || $8 == MYSQL_TYPE_VARCHAR)
                && (lex->type & BINCMP_FLAG))
            {
              my_error(ER_NOT_SUPPORTED_YET, MYF(0), "return value collation");
              YYABORT;
            }
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            if (sp->fill_field_definition(YYTHD, lex,
                                          (enum enum_field_types) $8,
                                          &sp->m_return_field_def))
              YYABORT;
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	    bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
	  }
	  sp_c_chistics
	  {
	    LEX *lex= Lex;

	    lex->sphead->m_chistics= &lex->sp_chistics;
	    lex->sphead->m_body_begin= lex->tok_start;
	  }
	  sp_proc_stmt
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;

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            if (sp->is_not_allowed_in_function("function"))
              YYABORT;

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	    lex->sql_command= SQLCOM_CREATE_SPFUNCTION;
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	    sp->init_strings(YYTHD, lex);
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            if (!(sp->m_flags & sp_head::HAS_RETURN))
            {
              my_error(ER_SP_NORETURN, MYF(0), sp->m_qname.str);
              YYABORT;
            }
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	    /* Restore flag if it was cleared above */
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	    YYTHD->client_capabilities |= $<ulong_num>2;
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	    sp->restore_thd_mem_root(YYTHD);
	  }
	;

sp_a_chistics:
	  /* Empty */ {}
	| sp_a_chistics sp_chistic {}
	;

sp_c_chistics:
	  /* Empty */ {}
	| sp_c_chistics sp_c_chistic {}
	;

/* Characteristics for both create and alter */
sp_chistic:
	  COMMENT_SYM TEXT_STRING_sys
	  { Lex->sp_chistics.comment= $2; }
	| LANGUAGE_SYM SQL_SYM
	  { /* Just parse it, we only have one language for now. */ }
	| NO_SYM SQL_SYM
	  { Lex->sp_chistics.daccess= SP_NO_SQL; }
	| CONTAINS_SYM SQL_SYM
	  { Lex->sp_chistics.daccess= SP_CONTAINS_SQL; }
	| READS_SYM SQL_SYM DATA_SYM
	  { Lex->sp_chistics.daccess= SP_READS_SQL_DATA; }
	| MODIFIES_SYM SQL_SYM DATA_SYM
	  { Lex->sp_chistics.daccess= SP_MODIFIES_SQL_DATA; }
	| sp_suid
	  { }
	;

/* Create characteristics */
sp_c_chistic:
	  sp_chistic            { }
	| DETERMINISTIC_SYM     { Lex->sp_chistics.detistic= TRUE; }
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	| not DETERMINISTIC_SYM { Lex->sp_chistics.detistic= FALSE; }
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	;

sp_suid:
	  SQL_SYM SECURITY_SYM DEFINER_SYM
	  {
	    Lex->sp_chistics.suid= SP_IS_SUID;
	  }
	| SQL_SYM SECURITY_SYM INVOKER_SYM
	  {
	    Lex->sp_chistics.suid= SP_IS_NOT_SUID;
	  }
	;

call:
	  CALL_SYM sp_name
	  {
	    LEX *lex = Lex;

	    lex->sql_command= SQLCOM_CALL;
	    lex->spname= $2;
	    lex->value_list.empty();
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	    sp_add_used_routine(lex, YYTHD, $2, TYPE_ENUM_PROCEDURE);
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	  }
1715
          opt_sp_cparam_list {}
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	;

/* CALL parameters */
1719
opt_sp_cparam_list:
1720
	  /* Empty */
1721
	| '(' opt_sp_cparams ')'
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	;

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opt_sp_cparams:
          /* Empty */
        | sp_cparams
        ;

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sp_cparams:
	  sp_cparams ',' expr
	  {
	    Lex->value_list.push_back($3);
	  }
	| expr
	  {
	    Lex->value_list.push_back($1);
	  }
	;

/* Stored FUNCTION parameter declaration list */
sp_fdparam_list:
	  /* Empty */
	| sp_fdparams
	;

sp_fdparams:
	  sp_fdparams ',' sp_fdparam
	| sp_fdparam
	;

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sp_init_param:
	  /* Empty */
	  {
	    LEX *lex= Lex;

	    lex->length= 0;
	    lex->dec= 0;
	    lex->type= 0;
	  
	    lex->default_value= 0;
	    lex->on_update_value= 0;
	  
	    lex->comment= null_lex_str;
	    lex->charset= NULL;
	  
	    lex->interval_list.empty();
	    lex->uint_geom_type= 0;
	  }
	;

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sp_fdparam:
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	  ident sp_init_param type
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	  {
	    LEX *lex= Lex;
	    sp_pcontext *spc= lex->spcont;

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	    if (spc->find_variable(&$1, TRUE))
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	    {
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	      my_error(ER_SP_DUP_PARAM, MYF(0), $1.str);
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	      YYABORT;
	    }
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            sp_variable_t *spvar= spc->push_variable(&$1,
                                                     (enum enum_field_types)$3,
                                                     sp_param_in);
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            if (lex->sphead->fill_field_definition(YYTHD, lex,
                                                   (enum enum_field_types) $3,
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                                                   &spvar->field_def))
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            {
              YYABORT;
            }
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            spvar->field_def.field_name= spvar->name.str;
            spvar->field_def.pack_flag |= FIELDFLAG_MAYBE_NULL;
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	  }
	;

/* Stored PROCEDURE parameter declaration list */
sp_pdparam_list:
	  /* Empty */
	| sp_pdparams
	;

sp_pdparams:
	  sp_pdparams ',' sp_pdparam
	| sp_pdparam
	;

sp_pdparam:
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	  sp_opt_inout sp_init_param ident type
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	  {
	    LEX *lex= Lex;
	    sp_pcontext *spc= lex->spcont;

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	    if (spc->find_variable(&$3, TRUE))
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	    {
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	      my_error(ER_SP_DUP_PARAM, MYF(0), $3.str);
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	      YYABORT;
	    }
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            sp_variable_t *spvar= spc->push_variable(&$3,
                                                     (enum enum_field_types)$4,
                                                     (sp_param_mode_t)$1);
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            if (lex->sphead->fill_field_definition(YYTHD, lex,
                                                   (enum enum_field_types) $4,
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                                                   &spvar->field_def))
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            {
              YYABORT;
            }
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            spvar->field_def.field_name= spvar->name.str;
            spvar->field_def.pack_flag |= FIELDFLAG_MAYBE_NULL;
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	  }
	;

sp_opt_inout:
	  /* Empty */ { $$= sp_param_in; }
	| IN_SYM      { $$= sp_param_in; }
	| OUT_SYM     { $$= sp_param_out; }
	| INOUT_SYM   { $$= sp_param_inout; }
	;

sp_proc_stmts:
	  /* Empty */ {}
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	| sp_proc_stmts  sp_proc_stmt ';'
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	;

sp_proc_stmts1:
	  sp_proc_stmt ';' {}
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	| sp_proc_stmts1  sp_proc_stmt ';'
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	;

sp_decls:
	  /* Empty */
	  {
	    $$.vars= $$.conds= $$.hndlrs= $$.curs= 0;
	  }
	| sp_decls sp_decl ';'
	  {
	    /* We check for declarations out of (standard) order this way
	       because letting the grammar rules reflect it caused tricky
	       shift/reduce conflicts with the wrong result. (And we get
	       better error handling this way.) */
	    if (($2.vars || $2.conds) && ($1.curs || $1.hndlrs))
	    { /* Variable or condition following cursor or handler */
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	      my_message(ER_SP_VARCOND_AFTER_CURSHNDLR,
                         ER(ER_SP_VARCOND_AFTER_CURSHNDLR), MYF(0));
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	      YYABORT;
	    }
	    if ($2.curs && $1.hndlrs)
	    { /* Cursor following handler */
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	      my_message(ER_SP_CURSOR_AFTER_HANDLER,
                         ER(ER_SP_CURSOR_AFTER_HANDLER), MYF(0));
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	      YYABORT;
	    }
	    $$.vars= $1.vars + $2.vars;
	    $$.conds= $1.conds + $2.conds;
	    $$.hndlrs= $1.hndlrs + $2.hndlrs;
	    $$.curs= $1.curs + $2.curs;
	  }
	;

sp_decl:
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          DECLARE_SYM sp_decl_idents
1883
          {
1884
            LEX *lex= Lex;
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            lex->sphead->reset_lex(YYTHD);
            lex->spcont->declare_var_boundary($2);
          }
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          type
1890
          sp_opt_default
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          {
            LEX *lex= Lex;
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            sp_pcontext *pctx= lex->spcont;
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            uint num_vars= pctx->context_var_count();
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            enum enum_field_types var_type= (enum enum_field_types) $4;
            Item *dflt_value_item= $5;
            create_field *create_field_op;
            
            if (!dflt_value_item)
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            {
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              dflt_value_item= new Item_null();
              /* QQ Set to the var_type with null_value? */
            }
            
            for (uint i = num_vars-$2 ; i < num_vars ; i++)
            {
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              uint var_idx= pctx->var_context2runtime(i);
              sp_variable_t *spvar= pctx->find_variable(var_idx);
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              if (!spvar)
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                YYABORT;
            
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              spvar->type= var_type;
              spvar->dflt= dflt_value_item;
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              if (lex->sphead->fill_field_definition(YYTHD, lex, var_type,
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                                                     &spvar->field_def))
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              {
                YYABORT;
              }
            
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              spvar->field_def.field_name= spvar->name.str;
              spvar->field_def.pack_flag |= FIELDFLAG_MAYBE_NULL;
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              /* The last instruction is responsible for freeing LEX. */

              lex->sphead->add_instr(
                new sp_instr_set(lex->sphead->instructions(), pctx, var_idx,
                                 dflt_value_item, var_type, lex,
                                 (i == num_vars - 1)));
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            }
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            pctx->declare_var_boundary(0);
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            lex->sphead->restore_lex(YYTHD);
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            $$.vars= $2;
            $$.conds= $$.hndlrs= $$.curs= 0;
          }
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	| DECLARE_SYM ident CONDITION_SYM FOR_SYM sp_cond
	  {
	    LEX *lex= Lex;
	    sp_pcontext *spc= lex->spcont;

	    if (spc->find_cond(&$2, TRUE))
	    {
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	      my_error(ER_SP_DUP_COND, MYF(0), $2.str);
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	      YYABORT;
	    }
	    YYTHD->lex->spcont->push_cond(&$2, $5);
	    $$.vars= $$.hndlrs= $$.curs= 0;
	    $$.conds= 1;
	  }
	| DECLARE_SYM sp_handler_type HANDLER_SYM FOR_SYM
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    sp_pcontext *ctx= lex->spcont;
	    sp_instr_hpush_jump *i=
              new sp_instr_hpush_jump(sp->instructions(), ctx, $2,
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	                              ctx->current_var_count());
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	    sp->add_instr(i);
	    sp->push_backpatch(i, ctx->push_label((char *)"", 0));
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	    sp->m_flags|= sp_head::IN_HANDLER;
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	  }
	  sp_hcond_list sp_proc_stmt
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    sp_pcontext *ctx= lex->spcont;
	    sp_label_t *hlab= lex->spcont->pop_label(); /* After this hdlr */
	    sp_instr_hreturn *i;

	    if ($2 == SP_HANDLER_CONTINUE)
	    {
	      i= new sp_instr_hreturn(sp->instructions(), ctx,
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	                              ctx->current_var_count());
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	      sp->add_instr(i);
	    }
	    else
	    {  /* EXIT or UNDO handler, just jump to the end of the block */
	      i= new sp_instr_hreturn(sp->instructions(), ctx, 0);

	      sp->add_instr(i);
	      sp->push_backpatch(i, lex->spcont->last_label()); /* Block end */
	    }
	    lex->sphead->backpatch(hlab);
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	    sp->m_flags&= ~sp_head::IN_HANDLER;
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	    $$.vars= $$.conds= $$.curs= 0;
	    $$.hndlrs= $6;
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	    ctx->add_handlers($6);
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	  }
	| DECLARE_SYM ident CURSOR_SYM FOR_SYM sp_cursor_stmt
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    sp_pcontext *ctx= lex->spcont;
	    uint offp;
	    sp_instr_cpush *i;

	    if (ctx->find_cursor(&$2, &offp, TRUE))
	    {
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	      my_error(ER_SP_DUP_CURS, MYF(0), $2.str);
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	      delete $5;
	      YYABORT;
	    }
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            i= new sp_instr_cpush(sp->instructions(), ctx, $5,
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                                  ctx->current_cursor_count());
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	    sp->add_instr(i);
	    ctx->push_cursor(&$2);
	    $$.vars= $$.conds= $$.hndlrs= 0;
	    $$.curs= 1;
	  }
	;

sp_cursor_stmt:
	  {
	    Lex->sphead->reset_lex(YYTHD);

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	    /*
	      We use statement here just be able to get a better
	      error message. Using 'select' works too, but will then
	      result in a generic "syntax error" if a non-select
	      statement is given.
	    */
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	  }
	  statement
	  {
	    LEX *lex= Lex;

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	    if (lex->sql_command != SQLCOM_SELECT &&
	       !(sql_command_flags[lex->sql_command] & CF_STATUS_COMMAND))
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	    {
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	      my_message(ER_SP_BAD_CURSOR_QUERY, ER(ER_SP_BAD_CURSOR_QUERY),
                         MYF(0));
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	      YYABORT;
	    }
	    if (lex->result)
	    {
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	      my_message(ER_SP_BAD_CURSOR_SELECT, ER(ER_SP_BAD_CURSOR_SELECT),
                         MYF(0));
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	      YYABORT;
	    }
	    lex->sp_lex_in_use= TRUE;
	    $$= lex;
	    lex->sphead->restore_lex(YYTHD);
	  }
	;

sp_handler_type:
	  EXIT_SYM      { $$= SP_HANDLER_EXIT; }
	| CONTINUE_SYM  { $$= SP_HANDLER_CONTINUE; }
/*	| UNDO_SYM      { QQ No yet } */
	;

sp_hcond_list:
	  sp_hcond
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
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	    sp_pcontext *ctx= lex->spcont;

	    if (ctx->find_handler($1))
	    {
	      my_message(ER_SP_DUP_HANDLER, ER(ER_SP_DUP_HANDLER), MYF(0));
	      YYABORT;
	    }
	    else
	    {
	      sp_instr_hpush_jump *i=
                (sp_instr_hpush_jump *)sp->last_instruction();
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	      i->add_condition($1);
	      ctx->push_handler($1);
	      $$= 1;
	    }
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	  }
	| sp_hcond_list ',' sp_hcond
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
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	    sp_pcontext *ctx= lex->spcont;

	    if (ctx->find_handler($3))
	    {
	      my_message(ER_SP_DUP_HANDLER, ER(ER_SP_DUP_HANDLER), MYF(0));
	      YYABORT;
	    }
	    else
	    {
	      sp_instr_hpush_jump *i=
	        (sp_instr_hpush_jump *)sp->last_instruction();
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	      i->add_condition($3);
	      ctx->push_handler($3);
	      $$= $1 + 1;
	    }
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	  }
	;

sp_cond:
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	  ulong_num
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	  {			/* mysql errno */
	    $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
	    $$->type= sp_cond_type_t::number;
	    $$->mysqlerr= $1;
	  }
	| SQLSTATE_SYM opt_value TEXT_STRING_literal
	  {		/* SQLSTATE */
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	    if (!sp_cond_check(&$3))
	    {
	      my_error(ER_SP_BAD_SQLSTATE, MYF(0), $3.str);
	      YYABORT;
	    }
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	    $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
	    $$->type= sp_cond_type_t::state;
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	    memcpy($$->sqlstate, $3.str, 5);
	    $$->sqlstate[5]= '\0';
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	  }
	;

opt_value:
	  /* Empty */  {}
	| VALUE_SYM    {}
	;

sp_hcond:
	  sp_cond
	  {
	    $$= $1;
	  }
	| ident			/* CONDITION name */
	  {
	    $$= Lex->spcont->find_cond(&$1);
	    if ($$ == NULL)
	    {
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	      my_error(ER_SP_COND_MISMATCH, MYF(0), $1.str);
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	      YYABORT;
	    }
	  }
	| SQLWARNING_SYM	/* SQLSTATEs 01??? */
	  {
	    $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
	    $$->type= sp_cond_type_t::warning;
	  }
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	| not FOUND_SYM		/* SQLSTATEs 02??? */
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	  {
	    $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
	    $$->type= sp_cond_type_t::notfound;
	  }
	| SQLEXCEPTION_SYM	/* All other SQLSTATEs */
	  {
	    $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
	    $$->type= sp_cond_type_t::exception;
	  }
	;

sp_decl_idents:
	  ident
	  {
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            /* NOTE: field definition is filled in sp_decl section. */

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	    LEX *lex= Lex;
	    sp_pcontext *spc= lex->spcont;

2166
	    if (spc->find_variable(&$1, TRUE))
2167
	    {
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	      my_error(ER_SP_DUP_VAR, MYF(0), $1.str);
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	      YYABORT;
	    }
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	    spc->push_variable(&$1, (enum_field_types)0, sp_param_in);
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	    $$= 1;
	  }
	| sp_decl_idents ',' ident
	  {
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            /* NOTE: field definition is filled in sp_decl section. */

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	    LEX *lex= Lex;
	    sp_pcontext *spc= lex->spcont;

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	    if (spc->find_variable(&$3, TRUE))
2182
	    {
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	      my_error(ER_SP_DUP_VAR, MYF(0), $3.str);
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	      YYABORT;
	    }
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	    spc->push_variable(&$3, (enum_field_types)0, sp_param_in);
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	    $$= $1 + 1;
	  }
	;

sp_opt_default:
	  /* Empty */ { $$ = NULL; }
        | DEFAULT expr { $$ = $2; }
	;

sp_proc_stmt:
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	  sp_proc_stmt_statement
        | sp_proc_stmt_return
	| sp_proc_stmt_if
	| sp_proc_stmt_case_simple
        | sp_proc_stmt_case
	| sp_labeled_control
	| sp_proc_stmt_unlabeled
	| sp_proc_stmt_leave
	| sp_proc_stmt_iterate
	| sp_proc_stmt_open
	| sp_proc_stmt_fetch
        | sp_proc_stmt_close
        ;

sp_proc_stmt_if:
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        IF { Lex->sphead->new_cont_backpatch(NULL); }
        sp_if END IF
        { Lex->sphead->do_cont_backpatch(); }
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        ;
        
sp_proc_stmt_statement:
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	  {
	    LEX *lex= Lex;

	    lex->sphead->reset_lex(YYTHD);
	    lex->sphead->m_tmp_query= lex->tok_start;
	  }
	  statement
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;

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            sp->m_flags|= sp_get_flags_for_command(lex);
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	    if (lex->sql_command == SQLCOM_CHANGE_DB)
	    { /* "USE db" doesn't work in a procedure */
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	      my_error(ER_SP_BADSTATEMENT, MYF(0), "USE");
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	      YYABORT;
	    }
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	    /*
              Don't add an instruction for SET statements, since all
              instructions for them were already added during processing
              of "set" rule.
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	    */
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            DBUG_ASSERT(lex->sql_command != SQLCOM_SET_OPTION ||
                        lex->var_list.is_empty());
            if (lex->sql_command != SQLCOM_SET_OPTION)
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	    {
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              sp_instr_stmt *i=new sp_instr_stmt(sp->instructions(),
                                                 lex->spcont, lex);
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              /*
                Extract the query statement from the tokenizer.  The
                end is either lex->ptr, if there was no lookahead,
                lex->tok_end otherwise.
              */
              if (yychar == YYEMPTY)
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                i->m_query.length= lex->ptr - sp->m_tmp_query;
              else
                i->m_query.length= lex->tok_end - sp->m_tmp_query;
              i->m_query.str= strmake_root(YYTHD->mem_root,
                                           (char *)sp->m_tmp_query,
                                           i->m_query.length);
              sp->add_instr(i);
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            }
	    sp->restore_lex(YYTHD);
          }
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        ;

sp_proc_stmt_return:
        RETURN_SYM 
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          { Lex->sphead->reset_lex(YYTHD); }
          expr
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	  {
	    LEX *lex= Lex;
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	    sp_head *sp= lex->sphead;
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	    if (sp->m_type != TYPE_ENUM_FUNCTION)
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	    {
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	      my_message(ER_SP_BADRETURN, ER(ER_SP_BADRETURN), MYF(0));
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	      YYABORT;
	    }
	    else
	    {
	      sp_instr_freturn *i;

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	      i= new sp_instr_freturn(sp->instructions(), lex->spcont, $3,
                                      sp->m_return_field_def.sql_type, lex);
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	      sp->add_instr(i);
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	      sp->m_flags|= sp_head::HAS_RETURN;
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	    }
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	    sp->restore_lex(YYTHD);
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	  }
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        ;

sp_proc_stmt_case_simple:
	CASE_SYM WHEN_SYM
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	  {
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	    Lex->sphead->m_flags&= ~sp_head::IN_SIMPLE_CASE;
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            Lex->sphead->new_cont_backpatch(NULL);
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	  }
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          sp_case END CASE_SYM { Lex->sphead->do_cont_backpatch(); }
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        ;
        
sp_proc_stmt_case:
          CASE_SYM
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          {
            Lex->sphead->reset_lex(YYTHD);
            Lex->sphead->new_cont_backpatch(NULL);
          }
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          expr WHEN_SYM
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	  {
	    LEX *lex= Lex;
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	    sp_head *sp= lex->sphead;
	    sp_pcontext *parsing_ctx= lex->spcont;
	    int case_expr_id= parsing_ctx->register_case_expr();
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            sp_instr_set_case_expr *i;
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	    if (parsing_ctx->push_case_expr_id(case_expr_id))
              YYABORT;
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            i= new sp_instr_set_case_expr(sp->instructions(),
                                          parsing_ctx,
                                          case_expr_id,
                                          $3,
                                          lex);
            sp->add_cont_backpatch(i);
            sp->add_instr(i);
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	    sp->m_flags|= sp_head::IN_SIMPLE_CASE;
	    sp->restore_lex(YYTHD);
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	  }
	  sp_case END CASE_SYM
	  {
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	    Lex->spcont->pop_case_expr_id();
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            Lex->sphead->do_cont_backpatch();
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	  }
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        ;

sp_proc_stmt_unlabeled:
	  { /* Unlabeled controls get a secret label. */
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	    LEX *lex= Lex;

	    lex->spcont->push_label((char *)"", lex->sphead->instructions());
	  }
	  sp_unlabeled_control
	  {
	    LEX *lex= Lex;

	    lex->sphead->backpatch(lex->spcont->pop_label());
	  }
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        ;

sp_proc_stmt_leave:
	  LEAVE_SYM label_ident
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	  {
	    LEX *lex= Lex;
	    sp_head *sp = lex->sphead;
	    sp_pcontext *ctx= lex->spcont;
	    sp_label_t *lab= ctx->find_label($2.str);

	    if (! lab)
	    {
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	      my_error(ER_SP_LILABEL_MISMATCH, MYF(0), "LEAVE", $2.str);
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	      YYABORT;
	    }
	    else
	    {
	      sp_instr_jump *i;
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	      uint ip= sp->instructions();
	      uint n;

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	      n= ctx->diff_handlers(lab->ctx, TRUE);  /* Exclusive the dest. */
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	      if (n)
	        sp->add_instr(new sp_instr_hpop(ip++, ctx, n));
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	      n= ctx->diff_cursors(lab->ctx, TRUE);  /* Exclusive the dest. */
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	      if (n)
	        sp->add_instr(new sp_instr_cpop(ip++, ctx, n));
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	      i= new sp_instr_jump(ip, ctx);
	      sp->push_backpatch(i, lab);  /* Jumping forward */
              sp->add_instr(i);
	    }
	  }
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        ;

sp_proc_stmt_iterate:
	  ITERATE_SYM label_ident
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	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    sp_pcontext *ctx= lex->spcont;
	    sp_label_t *lab= ctx->find_label($2.str);

	    if (! lab || lab->type != SP_LAB_ITER)
	    {
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	      my_error(ER_SP_LILABEL_MISMATCH, MYF(0), "ITERATE", $2.str);
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	      YYABORT;
	    }
	    else
	    {
	      sp_instr_jump *i;
	      uint ip= sp->instructions();
	      uint n;

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	      n= ctx->diff_handlers(lab->ctx, FALSE);  /* Inclusive the dest. */
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	      if (n)
	        sp->add_instr(new sp_instr_hpop(ip++, ctx, n));
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	      n= ctx->diff_cursors(lab->ctx, FALSE);  /* Inclusive the dest. */
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	      if (n)
	        sp->add_instr(new sp_instr_cpop(ip++, ctx, n));
	      i= new sp_instr_jump(ip, ctx, lab->ip); /* Jump back */
              sp->add_instr(i);
	    }
	  }
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        ;

sp_proc_stmt_open:
	  OPEN_SYM ident
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	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    uint offset;
	    sp_instr_copen *i;

	    if (! lex->spcont->find_cursor(&$2, &offset))
	    {
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	      my_error(ER_SP_CURSOR_MISMATCH, MYF(0), $2.str);
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	      YYABORT;
	    }
	    i= new sp_instr_copen(sp->instructions(), lex->spcont, offset);
	    sp->add_instr(i);
	  }
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        ;

sp_proc_stmt_fetch:
	  FETCH_SYM sp_opt_fetch_noise ident INTO
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	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    uint offset;
	    sp_instr_cfetch *i;

	    if (! lex->spcont->find_cursor(&$3, &offset))
	    {
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	      my_error(ER_SP_CURSOR_MISMATCH, MYF(0), $3.str);
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	      YYABORT;
	    }
	    i= new sp_instr_cfetch(sp->instructions(), lex->spcont, offset);
	    sp->add_instr(i);
	  }
	  sp_fetch_list
	  { }
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        ;

sp_proc_stmt_close:
	  CLOSE_SYM ident
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	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    uint offset;
	    sp_instr_cclose *i;

	    if (! lex->spcont->find_cursor(&$2, &offset))
	    {
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	      my_error(ER_SP_CURSOR_MISMATCH, MYF(0), $2.str);
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	      YYABORT;
	    }
	    i= new sp_instr_cclose(sp->instructions(), lex->spcont,  offset);
	    sp->add_instr(i);
	  }
	;

sp_opt_fetch_noise:
	  /* Empty */
	| NEXT_SYM FROM
	| FROM
	;

sp_fetch_list:
	  ident
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    sp_pcontext *spc= lex->spcont;
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	    sp_variable_t *spv;
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	    if (!spc || !(spv = spc->find_variable(&$1)))
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	    {
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	      my_error(ER_SP_UNDECLARED_VAR, MYF(0), $1.str);
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	      YYABORT;
	    }
	    else
	    {
	      /* An SP local variable */
	      sp_instr_cfetch *i= (sp_instr_cfetch *)sp->last_instruction();

	      i->add_to_varlist(spv);
	    }
	  }
	|
	  sp_fetch_list ',' ident
	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    sp_pcontext *spc= lex->spcont;
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	    sp_variable_t *spv;
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	    if (!spc || !(spv = spc->find_variable(&$3)))
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	    {
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	      my_error(ER_SP_UNDECLARED_VAR, MYF(0), $3.str);
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	      YYABORT;
	    }
	    else
	    {
	      /* An SP local variable */
	      sp_instr_cfetch *i= (sp_instr_cfetch *)sp->last_instruction();

	      i->add_to_varlist(spv);
	    }
	  }
	;

sp_if:
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          { Lex->sphead->reset_lex(YYTHD); }
          expr THEN_SYM
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	  {
	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    sp_pcontext *ctx= lex->spcont;
	    uint ip= sp->instructions();
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	    sp_instr_jump_if_not *i = new sp_instr_jump_if_not(ip, ctx,
                                                               $2, lex);
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	    sp->push_backpatch(i, ctx->push_label((char *)"", 0));
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            sp->add_cont_backpatch(i);
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            sp->add_instr(i);
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            sp->restore_lex(YYTHD);
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	  }
	  sp_proc_stmts1
	  {
	    sp_head *sp= Lex->sphead;
	    sp_pcontext *ctx= Lex->spcont;
	    uint ip= sp->instructions();
	    sp_instr_jump *i = new sp_instr_jump(ip, ctx);

	    sp->add_instr(i);
	    sp->backpatch(ctx->pop_label());
	    sp->push_backpatch(i, ctx->push_label((char *)"", 0));
	  }
	  sp_elseifs
	  {
	    LEX *lex= Lex;

	    lex->sphead->backpatch(lex->spcont->pop_label());
	  }
	;

sp_elseifs:
	  /* Empty */
	| ELSEIF_SYM sp_if
	| ELSE sp_proc_stmts1
	;

sp_case:
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	  { Lex->sphead->reset_lex(YYTHD); }
          expr THEN_SYM
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	  {
            LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    sp_pcontext *ctx= Lex->spcont;
	    uint ip= sp->instructions();
	    sp_instr_jump_if_not *i;

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	    if (! (sp->m_flags & sp_head::IN_SIMPLE_CASE))
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	      i= new sp_instr_jump_if_not(ip, ctx, $2, lex);
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	    else
	    { /* Simple case: <caseval> = <whenval> */

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	      Item_case_expr *var;
              Item *expr;

              var= new Item_case_expr(ctx->get_current_case_expr_id());

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#ifndef DBUG_OFF
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              if (var)
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                var->m_sp= sp;
2581
#endif
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	      expr= new Item_func_eq(var, $2);
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	      i= new sp_instr_jump_if_not(ip, ctx, expr, lex);
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	    }
	    sp->push_backpatch(i, ctx->push_label((char *)"", 0));
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            sp->add_cont_backpatch(i);
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            sp->add_instr(i);
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            sp->restore_lex(YYTHD);
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	  }
	  sp_proc_stmts1
	  {
	    sp_head *sp= Lex->sphead;
	    sp_pcontext *ctx= Lex->spcont;
	    uint ip= sp->instructions();
	    sp_instr_jump *i = new sp_instr_jump(ip, ctx);

	    sp->add_instr(i);
	    sp->backpatch(ctx->pop_label());
	    sp->push_backpatch(i, ctx->push_label((char *)"", 0));
	  }
	  sp_whens
	  {
	    LEX *lex= Lex;

	    lex->sphead->backpatch(lex->spcont->pop_label());
	  }
	;
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sp_whens:
	  /* Empty */
	  {
	    sp_head *sp= Lex->sphead;
	    uint ip= sp->instructions();
	    sp_instr_error *i= new sp_instr_error(ip, Lex->spcont,
						  ER_SP_CASE_NOT_FOUND);
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	    sp->add_instr(i);
	  }
	| ELSE sp_proc_stmts1 {}
	| WHEN_SYM sp_case {}
	;
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sp_labeled_control:
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	  label_ident ':'
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	  {
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	    LEX *lex= Lex;
	    sp_pcontext *ctx= lex->spcont;
	    sp_label_t *lab= ctx->find_label($1.str);

	    if (lab)
	    {
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	      my_error(ER_SP_LABEL_REDEFINE, MYF(0), $1.str);
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	      YYABORT;
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	    }
	    else
	    {
	      lab= lex->spcont->push_label($1.str,
	                                   lex->sphead->instructions());
	      lab->type= SP_LAB_ITER;
	    }
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	  }
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	  sp_unlabeled_control sp_opt_label
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	  {
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	    LEX *lex= Lex;
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	    if ($5.str)
	    {
	      sp_label_t *lab= lex->spcont->find_label($5.str);

	      if (!lab ||
	          my_strcasecmp(system_charset_info, $5.str, lab->name) != 0)
	      {
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	        my_error(ER_SP_LABEL_MISMATCH, MYF(0), $5.str);
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	        YYABORT;
	      }
	    }
	    lex->sphead->backpatch(lex->spcont->pop_label());
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	  }
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	;

sp_opt_label:
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        /* Empty  */    { $$= null_lex_str; }
2665
        | label_ident   { $$= $1; }
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	;

sp_unlabeled_control:
	  BEGIN_SYM
	  { /* QQ This is just a dummy for grouping declarations and statements
	       together. No [[NOT] ATOMIC] yet, and we need to figure out how
	       make it coexist with the existing BEGIN COMMIT/ROLLBACK. */
	    LEX *lex= Lex;
	    sp_label_t *lab= lex->spcont->last_label();

	    lab->type= SP_LAB_BEGIN;
	    lex->spcont= lex->spcont->push_context();
	  }
	  sp_decls
	  sp_proc_stmts
	  END
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	  {
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	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    sp_pcontext *ctx= lex->spcont;

  	    sp->backpatch(ctx->last_label());	/* We always have a label */
	    if ($3.hndlrs)
	      sp->add_instr(new sp_instr_hpop(sp->instructions(), ctx,
					      $3.hndlrs));
	    if ($3.curs)
	      sp->add_instr(new sp_instr_cpop(sp->instructions(), ctx,
					      $3.curs));
	    lex->spcont= ctx->pop_context();
	  }
	| LOOP_SYM
	  sp_proc_stmts1 END LOOP_SYM
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	  {
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	    LEX *lex= Lex;
	    uint ip= lex->sphead->instructions();
	    sp_label_t *lab= lex->spcont->last_label();  /* Jumping back */
	    sp_instr_jump *i = new sp_instr_jump(ip, lex->spcont, lab->ip);

	    lex->sphead->add_instr(i);
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	  }
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        | WHILE_SYM 
          { Lex->sphead->reset_lex(YYTHD); }
          expr DO_SYM
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	  {
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	    LEX *lex= Lex;
	    sp_head *sp= lex->sphead;
	    uint ip= sp->instructions();
	    sp_instr_jump_if_not *i = new sp_instr_jump_if_not(ip, lex->spcont,
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							       $3, lex);
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	    /* Jumping forward */
	    sp->push_backpatch(i, lex->spcont->last_label());
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            sp->new_cont_backpatch(i);
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            sp->add_instr(i);
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            sp->restore_lex(YYTHD);
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	  }
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	  sp_proc_stmts1 END WHILE_SYM
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	  {
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	    LEX *lex= Lex;
	    uint ip= lex->sphead->instructions();
	    sp_label_t *lab= lex->spcont->last_label();  /* Jumping back */
	    sp_instr_jump *i = new sp_instr_jump(ip, lex->spcont, lab->ip);

	    lex->sphead->add_instr(i);
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            lex->sphead->do_cont_backpatch();
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	  }
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        | REPEAT_SYM sp_proc_stmts1 UNTIL_SYM 
          { Lex->sphead->reset_lex(YYTHD); }
          expr END REPEAT_SYM
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	  {
	    LEX *lex= Lex;
	    uint ip= lex->sphead->instructions();
	    sp_label_t *lab= lex->spcont->last_label();  /* Jumping back */
	    sp_instr_jump_if_not *i = new sp_instr_jump_if_not(ip, lex->spcont,
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                                                               $5, lab->ip,
                                                               lex);
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            lex->sphead->add_instr(i);
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            lex->sphead->restore_lex(YYTHD);
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            /* We can shortcut the cont_backpatch here */
            i->m_cont_dest= ip+1;
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	  }
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	;

trg_action_time:
            BEFORE_SYM 
            { Lex->trg_chistics.action_time= TRG_ACTION_BEFORE; }
          | AFTER_SYM 
            { Lex->trg_chistics.action_time= TRG_ACTION_AFTER; }
          ;

trg_event:
            INSERT 
            { Lex->trg_chistics.event= TRG_EVENT_INSERT; }
          | UPDATE_SYM
            { Lex->trg_chistics.event= TRG_EVENT_UPDATE; }
          | DELETE_SYM
            { Lex->trg_chistics.event= TRG_EVENT_DELETE; }
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          ;
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/*
  This part of the parser contains common code for all TABLESPACE
  commands.
  CREATE TABLESPACE name ...
  ALTER TABLESPACE name CHANGE DATAFILE ...
  ALTER TABLESPACE name ADD DATAFILE ...
  ALTER TABLESPACE name access_mode
  CREATE LOGFILE GROUP name ...
  ALTER LOGFILE GROUP name ADD UNDOFILE ..
  ALTER LOGFILE GROUP name ADD REDOFILE ..
  DROP TABLESPACE name
  DROP LOGFILE GROUP name
*/
change_tablespace_access:
          tablespace_name
          ts_access_mode
          ;

change_tablespace_info:
          tablespace_name
          CHANGE ts_datafile
          change_ts_option_list
          ;

tablespace_info:
          tablespace_name
          ADD ts_datafile
          opt_logfile_group_name
          tablespace_option_list
          ;

opt_logfile_group_name:
          /* empty */ {}
          | USE_SYM LOGFILE_SYM GROUP ident
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->logfile_group_name= $4.str;
          };

alter_tablespace_info:
          tablespace_name
          ADD ts_datafile
          alter_tablespace_option_list 
	  { 
	    Lex->alter_tablespace_info->ts_alter_tablespace_type= ALTER_TABLESPACE_ADD_FILE; 
          }
          |
          tablespace_name
          DROP ts_datafile
          alter_tablespace_option_list 
	  { 
	    Lex->alter_tablespace_info->ts_alter_tablespace_type= ALTER_TABLESPACE_DROP_FILE; 
          };

logfile_group_info:
          logfile_group_name
          add_log_file
          logfile_group_option_list
          ;

alter_logfile_group_info:
          logfile_group_name
          add_log_file
          alter_logfile_group_option_list
          ;

add_log_file:
          ADD lg_undofile
          | ADD lg_redofile
          ;

change_ts_option_list:
          /* empty */ {}
          change_ts_options
          ;

change_ts_options:
          change_ts_option
          | change_ts_options change_ts_option
          | change_ts_options ',' change_ts_option
          ;

change_ts_option:
          opt_ts_initial_size
          | opt_ts_autoextend_size
          | opt_ts_max_size
          ;

tablespace_option_list:
          /* empty */ {}
          tablespace_options
          ;

tablespace_options:
          tablespace_option
          | tablespace_options tablespace_option
          | tablespace_options ',' tablespace_option
          ;

tablespace_option:
          opt_ts_initial_size
          | opt_ts_autoextend_size
          | opt_ts_max_size
          | opt_ts_extent_size
          | opt_ts_nodegroup
          | opt_ts_engine
          | ts_wait
          | opt_ts_comment
          ;

alter_tablespace_option_list:
          /* empty */ {}
          alter_tablespace_options
          ;

alter_tablespace_options:
          alter_tablespace_option
          | alter_tablespace_options alter_tablespace_option
          | alter_tablespace_options ',' alter_tablespace_option
          ;

alter_tablespace_option:
          opt_ts_initial_size
          | opt_ts_autoextend_size
          | opt_ts_max_size
          | opt_ts_engine
          | ts_wait
          ;

logfile_group_option_list:
          /* empty */ {}
          logfile_group_options
          ;

logfile_group_options:
          logfile_group_option
          | logfile_group_options logfile_group_option
          | logfile_group_options ',' logfile_group_option
          ;

logfile_group_option:
          opt_ts_initial_size
          | opt_ts_undo_buffer_size
          | opt_ts_redo_buffer_size
          | opt_ts_nodegroup
          | opt_ts_engine
          | ts_wait
          | opt_ts_comment
          ;

alter_logfile_group_option_list:
          /* empty */ {}
          alter_logfile_group_options
          ;

alter_logfile_group_options:
          alter_logfile_group_option
          | alter_logfile_group_options alter_logfile_group_option
          | alter_logfile_group_options ',' alter_logfile_group_option
          ;

alter_logfile_group_option:
          opt_ts_initial_size
          | opt_ts_engine
          | ts_wait
          ;


ts_datafile:
          DATAFILE_SYM TEXT_STRING_sys
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->data_file_name= $2.str;
          };

lg_undofile:
          UNDOFILE_SYM TEXT_STRING_sys
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->undo_file_name= $2.str;
          };

lg_redofile:
          REDOFILE_SYM TEXT_STRING_sys
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->redo_file_name= $2.str;
          };

tablespace_name:
          ident
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info= new st_alter_tablespace();
            lex->alter_tablespace_info->tablespace_name= $1.str;
            lex->sql_command= SQLCOM_ALTER_TABLESPACE;
          };

logfile_group_name:
          ident
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info= new st_alter_tablespace();
            lex->alter_tablespace_info->logfile_group_name= $1.str;
            lex->sql_command= SQLCOM_ALTER_TABLESPACE;
          };

ts_access_mode:
          READ_ONLY_SYM
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_access_mode= TS_READ_ONLY;
          }
          | READ_WRITE_SYM
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_access_mode= TS_READ_WRITE;
          }
          | NOT_SYM ACCESSIBLE_SYM
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_access_mode= TS_NOT_ACCESSIBLE;
          };

opt_ts_initial_size:
          INITIAL_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->initial_size= $3;
          };

opt_ts_autoextend_size:
          AUTOEXTEND_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->autoextend_size= $3;
          };

opt_ts_max_size:
          MAX_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->max_size= $3;
          };

opt_ts_extent_size:
          EXTENT_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->extent_size= $3;
          };

opt_ts_undo_buffer_size:
          UNDO_BUFFER_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->undo_buffer_size= $3;
          };

opt_ts_redo_buffer_size:
          REDO_BUFFER_SIZE_SYM opt_equal size_number
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->redo_buffer_size= $3;
          };

opt_ts_nodegroup:
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          NODEGROUP_SYM opt_equal real_ulong_num
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          {
            LEX *lex= Lex;
            if (lex->alter_tablespace_info->nodegroup_id != UNDEF_NODEGROUP)
            {
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              my_error(ER_FILEGROUP_OPTION_ONLY_ONCE,MYF(0),"NODEGROUP");
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              YYABORT;
            }
            lex->alter_tablespace_info->nodegroup_id= $3;
          };

opt_ts_comment:
          COMMENT_SYM opt_equal TEXT_STRING_sys
          {
            LEX *lex= Lex;
            if (lex->alter_tablespace_info->ts_comment != NULL)
            {
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              my_error(ER_FILEGROUP_OPTION_ONLY_ONCE,MYF(0),"COMMENT");
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              YYABORT;
            }
            lex->alter_tablespace_info->ts_comment= $3.str;
          };

opt_ts_engine:
          opt_storage ENGINE_SYM opt_equal storage_engines
          {
            LEX *lex= Lex;
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            if (lex->alter_tablespace_info->storage_engine != NULL)
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            {
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              my_error(ER_FILEGROUP_OPTION_ONLY_ONCE,MYF(0),
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                       "STORAGE ENGINE");
              YYABORT;
            }
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            lex->alter_tablespace_info->storage_engine= $4;
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          };

opt_ts_wait:
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          /* empty */
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          | ts_wait
          ;

ts_wait:
          WAIT_SYM
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->wait_until_completed= TRUE;
          }
          | NO_WAIT_SYM
          {
            LEX *lex= Lex;
            if (!(lex->alter_tablespace_info->wait_until_completed))
            {
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              my_error(ER_FILEGROUP_OPTION_ONLY_ONCE,MYF(0),"NO_WAIT");
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              YYABORT;
            }
            lex->alter_tablespace_info->wait_until_completed= FALSE;
          };

size_number:
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          real_ulong_num { $$= $1;}
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          | IDENT
          {
            ulonglong number, test_number;
            uint text_shift_number= 0;
            longlong prefix_number;
            char *start_ptr= $1.str;
            uint str_len= strlen(start_ptr);
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            char *end_ptr= start_ptr + str_len;
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            int error;
            prefix_number= my_strtoll10(start_ptr, &end_ptr, &error);
            if ((start_ptr + str_len - 1) == end_ptr)
            {
              switch (end_ptr[0])
              {
                case 'g':
                case 'G':
                  text_shift_number+=10;
                case 'm':
                case 'M':
                  text_shift_number+=10;
                case 'k':
                case 'K':
                  text_shift_number+=10;
                  break;
                default:
                {
                  my_error(ER_WRONG_SIZE_NUMBER, MYF(0));
                  YYABORT;
                }
              }
              if (prefix_number >> 31)
              {
                my_error(ER_SIZE_OVERFLOW_ERROR, MYF(0));
                YYABORT;
              }
              number= prefix_number << text_shift_number;
            }
            else
            {
              my_error(ER_WRONG_SIZE_NUMBER, MYF(0));
              YYABORT;
            }
            $$= number;
          }
          ;

/*
  End tablespace part
*/
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create2:
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        '(' create2a {}
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        | opt_create_table_options
          opt_partitioning {} 
          create3 {}
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        | LIKE table_ident
          {
            LEX *lex=Lex;
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            THD *thd= lex->thd;
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            if (!(lex->like_name= $2))
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              YYABORT;
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            if ($2->db.str == NULL &&
                thd->copy_db_to(&($2->db.str), &($2->db.length)))
            {
              YYABORT;
            }
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          }
        | '(' LIKE table_ident ')'
          {
            LEX *lex=Lex;
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            THD *thd= lex->thd;
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            if (!(lex->like_name= $3))
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              YYABORT;
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            if ($3->db.str == NULL &&
                thd->copy_db_to(&($3->db.str), &($3->db.length)))
            {
              YYABORT;
            }
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          }
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        ;
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create2a:
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        field_list ')' opt_create_table_options
          opt_partitioning {}
          create3 {}
        |  opt_partitioning {}
           create_select ')'
           { Select->set_braces(1);} union_opt {}
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        ;
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create3:
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	/* empty */ {}
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	| opt_duplicate opt_as     create_select
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          { Select->set_braces(0);} union_clause {}
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	| opt_duplicate opt_as '(' create_select ')'
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          { Select->set_braces(1);} union_opt {}
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        ;

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/*
 This part of the parser is about handling of the partition information.

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 It's first version was written by Mikael Ronström with lots of answers to
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 questions provided by Antony Curtis.

 The partition grammar can be called from three places.
 1) CREATE TABLE ... PARTITION ..
 2) ALTER TABLE table_name PARTITION ...
 3) PARTITION ...

 The first place is called when a new table is created from a MySQL client.
 The second place is called when a table is altered with the ALTER TABLE
 command from a MySQL client.
 The third place is called when opening an frm file and finding partition
 info in the .frm file. It is necessary to avoid allowing PARTITION to be
 an allowed entry point for SQL client queries. This is arranged by setting
 some state variables before arriving here.

 To be able to handle errors we will only set error code in this code
 and handle the error condition in the function calling the parser. This
 is necessary to ensure we can also handle errors when calling the parser
 from the openfrm function.
*/
opt_partitioning:
        /* empty */ {}
        | partitioning
        ;

partitioning:
        PARTITION_SYM
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        {
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#ifdef WITH_PARTITION_STORAGE_ENGINE
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          LEX *lex= Lex;
          lex->part_info= new partition_info();
          if (!lex->part_info)
          {
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            mem_alloc_error(sizeof(partition_info));
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            YYABORT;
          }
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          if (lex->sql_command == SQLCOM_ALTER_TABLE)
          {
            lex->alter_info.flags|= ALTER_PARTITION;
          }
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#else
          my_error(ER_FEATURE_DISABLED, MYF(0),
       	           "partitioning", "--with-partition");
          YYABORT;
#endif

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        }
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        partition
        ;

partition_entry:
        PARTITION_SYM
        {
          LEX *lex= Lex;
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          if (!lex->part_info)
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          {
            yyerror(ER(ER_PARTITION_ENTRY_ERROR));
            YYABORT;
          }
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          /*
            We enter here when opening the frm file to translate
            partition info string into part_info data structure.
          */
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        }
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        partition {}
        ;
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partition:
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        BY part_type_def opt_no_parts {} opt_sub_part {} part_defs
        ;
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part_type_def:
        opt_linear KEY_SYM '(' part_field_list ')'
        {
          LEX *lex= Lex;
          lex->part_info->list_of_part_fields= TRUE;
          lex->part_info->part_type= HASH_PARTITION;
        }
        | opt_linear HASH_SYM
        { Lex->part_info->part_type= HASH_PARTITION; }
        part_func {}
        | RANGE_SYM
        { Lex->part_info->part_type= RANGE_PARTITION; }
        part_func {}
        | LIST_SYM
        { Lex->part_info->part_type= LIST_PARTITION; }
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        part_func {}
        ;
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opt_linear:
        /* empty */ {}
        | LINEAR_SYM
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        { Lex->part_info->linear_hash_ind= TRUE;}
        ;
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part_field_list:
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        /* empty */ {}
        | part_field_item_list {}
        ;

part_field_item_list:
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        part_field_item {}
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        | part_field_item_list ',' part_field_item {}
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        ;
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part_field_item:
        ident
        {
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          if (Lex->part_info->part_field_list.push_back($1.str))
          {
            mem_alloc_error(1);
            YYABORT;
          }
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        }
        ;
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part_func:
        '(' remember_name part_func_expr remember_end ')'
        {
          LEX *lex= Lex;
          uint expr_len= (uint)($4 - $2) - 1;
          lex->part_info->list_of_part_fields= FALSE;
          lex->part_info->part_expr= $3;
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          lex->part_info->part_func_string= (char* ) sql_memdup($2+1, expr_len);
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          lex->part_info->part_func_len= expr_len;
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        }
        ;
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sub_part_func:
        '(' remember_name part_func_expr remember_end ')'
        {
          LEX *lex= Lex;
          uint expr_len= (uint)($4 - $2) - 1;
          lex->part_info->list_of_subpart_fields= FALSE;
          lex->part_info->subpart_expr= $3;
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          lex->part_info->subpart_func_string= (char* ) sql_memdup($2+1, expr_len);        
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          lex->part_info->subpart_func_len= expr_len;
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        }
        ;
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opt_no_parts:
        /* empty */ {}
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        | PARTITIONS_SYM real_ulong_num 
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        { 
          uint no_parts= $2;
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          LEX *lex= Lex;
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          if (no_parts == 0)
          {
            my_error(ER_NO_PARTS_ERROR, MYF(0), "partitions");
            YYABORT;
          }
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          lex->part_info->no_parts= no_parts;
          lex->part_info->use_default_no_partitions= FALSE;
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        }
        ;
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opt_sub_part:
        /* empty */ {}
        | SUBPARTITION_SYM BY opt_linear HASH_SYM sub_part_func
        { Lex->part_info->subpart_type= HASH_PARTITION; }
        opt_no_subparts {}
        | SUBPARTITION_SYM BY opt_linear KEY_SYM
          '(' sub_part_field_list ')'
        {
          LEX *lex= Lex;
          lex->part_info->subpart_type= HASH_PARTITION;
          lex->part_info->list_of_subpart_fields= TRUE;
        }
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        opt_no_subparts {}
        ;
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sub_part_field_list:
        sub_part_field_item {}
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        | sub_part_field_list ',' sub_part_field_item {}
        ;
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sub_part_field_item:
        ident
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        {
          if (Lex->part_info->subpart_field_list.push_back($1.str))
          {
            mem_alloc_error(1);
            YYABORT;
          }
        }
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        ;
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part_func_expr:
        bit_expr
        {
          LEX *lex= Lex;
          bool not_corr_func;
          not_corr_func= !lex->safe_to_cache_query;
          lex->safe_to_cache_query= 1;
          if (not_corr_func)
          {
            yyerror(ER(ER_CONST_EXPR_IN_PARTITION_FUNC_ERROR));
            YYABORT;
          }
          $$=$1;
        }
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        ;
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opt_no_subparts:
        /* empty */ {}
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        | SUBPARTITIONS_SYM real_ulong_num
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        {
          uint no_parts= $2;
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          LEX *lex= Lex;
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          if (no_parts == 0)
          {
            my_error(ER_NO_PARTS_ERROR, MYF(0), "subpartitions");
            YYABORT;
          }
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          lex->part_info->no_subparts= no_parts;
          lex->part_info->use_default_no_subpartitions= FALSE;
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        }
        ;
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part_defs:
        /* empty */
        {}
        | '(' part_def_list ')'
        {
          LEX *lex= Lex;
          partition_info *part_info= lex->part_info;
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          uint count_curr_parts= part_info->partitions.elements;
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          if (part_info->no_parts != 0)
          {
            if (part_info->no_parts !=
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                count_curr_parts)
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            {
              yyerror(ER(ER_PARTITION_WRONG_NO_PART_ERROR));
              YYABORT;
            }
          }
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          else if (count_curr_parts > 0)
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          {
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            part_info->no_parts= count_curr_parts;
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          }
          part_info->count_curr_subparts= 0;
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        }
        ;
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part_def_list:
        part_definition {}
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        | part_def_list ',' part_definition {}
        ;
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part_definition:
        PARTITION_SYM
        {
          LEX *lex= Lex;
          partition_info *part_info= lex->part_info;
          partition_element *p_elem= new partition_element();
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          uint part_id= part_info->partitions.elements;

          if (!p_elem || part_info->partitions.push_back(p_elem))
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          {
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            mem_alloc_error(sizeof(partition_element));
            YYABORT;
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          }
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          p_elem->part_state= PART_NORMAL;
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          part_info->curr_part_elem= p_elem;
          part_info->current_partition= p_elem;
          part_info->use_default_partitions= FALSE;
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          part_info->use_default_no_partitions= FALSE;
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        }
        part_name {}
        opt_part_values {}
        opt_part_options {}
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        opt_sub_partition {}
        ;
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part_name:
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        ident
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        {
          LEX *lex= Lex;
          partition_info *part_info= lex->part_info;
          partition_element *p_elem= part_info->curr_part_elem;
          p_elem->partition_name= $1.str;
        }
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        ;
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opt_part_values:
        /* empty */
        {
          LEX *lex= Lex;
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          if (!is_partition_management(lex))
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          {
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            if (lex->part_info->part_type == RANGE_PARTITION)
            {
              my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
              "RANGE", "LESS THAN");
              YYABORT;
            }
            if (lex->part_info->part_type == LIST_PARTITION)
            {
              my_error(ER_PARTITION_REQUIRES_VALUES_ERROR, MYF(0),
              "LIST", "IN");
              YYABORT;
            }
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          }
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          else
            lex->part_info->part_type= HASH_PARTITION;
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        }
        | VALUES LESS_SYM THAN_SYM part_func_max
        {
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          LEX *lex= Lex;
          if (!is_partition_management(lex))
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          {
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            if (Lex->part_info->part_type != RANGE_PARTITION)
            {
              my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
              "RANGE", "LESS THAN");
              YYABORT;
            }
3512
          }
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          else
            lex->part_info->part_type= RANGE_PARTITION;
3515 3516 3517
        }
        | VALUES IN_SYM '(' part_list_func ')'
        {
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          LEX *lex= Lex;
          if (!is_partition_management(lex))
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          {
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            if (Lex->part_info->part_type != LIST_PARTITION)
            {
              my_error(ER_PARTITION_WRONG_VALUES_ERROR, MYF(0),
              "LIST", "IN");
              YYABORT;
            }
3527
          }
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          else
            lex->part_info->part_type= LIST_PARTITION;
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        }
        ;
3532 3533

part_func_max:
3534
        max_value_sym
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        {
          LEX *lex= Lex;
          if (lex->part_info->defined_max_value)
          {
            yyerror(ER(ER_PARTITION_MAXVALUE_ERROR));
            YYABORT;
          }
          lex->part_info->defined_max_value= TRUE;
3543
          lex->part_info->curr_part_elem->max_value= TRUE;
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          lex->part_info->curr_part_elem->range_value= LONGLONG_MAX;
3545 3546 3547 3548 3549 3550 3551 3552
        }
        | part_range_func
        {
          if (Lex->part_info->defined_max_value)
          {
            yyerror(ER(ER_PARTITION_MAXVALUE_ERROR));
            YYABORT;
          }
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          if (Lex->part_info->curr_part_elem->has_null_value)
          {
            yyerror(ER(ER_NULL_IN_VALUES_LESS_THAN));
            YYABORT;
          }
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        }
        ;
3560

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max_value_sym:
        MAX_VALUE_SYM
        | '(' MAX_VALUE_SYM ')'
        ;
        
3566 3567 3568
part_range_func:
        '(' part_bit_expr ')' 
        {
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          partition_info *part_info= Lex->part_info;
          if (!($2->unsigned_flag))
            part_info->curr_part_elem->signed_flag= TRUE;
          part_info->curr_part_elem->range_value= $2->value;
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        }
        ;
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part_list_func:
        part_list_item {}
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        | part_list_func ',' part_list_item {}
        ;
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part_list_item:
        part_bit_expr
        {
3584
          part_elem_value *value_ptr= $1;
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          partition_info *part_info= Lex->part_info;
          if (!value_ptr->unsigned_flag)
            part_info->curr_part_elem->signed_flag= TRUE;
3588
          if (!value_ptr->null_value &&
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             part_info->curr_part_elem->
              list_val_list.push_back(value_ptr))
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          {
3592
            mem_alloc_error(sizeof(part_elem_value));
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            YYABORT;
          }
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        }
        ;
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part_bit_expr:
        bit_expr
        {
          Item *part_expr= $1;
          bool not_corr_func;
3603
          int part_expression_ok= 1;
3604
          LEX *lex= Lex;
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          THD *thd= YYTHD;
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          longlong item_value;
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          Name_resolution_context *context= &lex->current_select->context;
          TABLE_LIST *save_list= context->table_list;
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          const char *save_where= thd->where;
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          context->table_list= 0;
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          thd->where= "partition function";
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          part_elem_value *value_ptr= 
            (part_elem_value*)sql_alloc(sizeof(part_elem_value));
          if (!value_ptr)
          {
            mem_alloc_error(sizeof(part_elem_value));
            YYABORT;
          }
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          if (part_expr->walk(&Item::check_partition_func_processor, 0,
                              NULL))
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          {
            my_error(ER_PARTITION_FUNCTION_IS_NOT_ALLOWED, MYF(0));
            YYABORT;
          }
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          if (part_expr->fix_fields(YYTHD, (Item**)0) ||
              ((context->table_list= save_list), FALSE) ||
              (!part_expr->const_item()) ||
              (!lex->safe_to_cache_query))
3631
          {
3632
            my_error(ER_NO_CONST_EXPR_IN_RANGE_OR_LIST_ERROR, MYF(0));
3633 3634
            YYABORT;
          }
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          thd->where= save_where;
3636
          value_ptr->value= part_expr->val_int();
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          value_ptr->unsigned_flag= TRUE;
          if (!part_expr->unsigned_flag &&
              value_ptr->value < 0)
            value_ptr->unsigned_flag= FALSE;
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          if ((value_ptr->null_value= part_expr->null_value))
          {
            if (Lex->part_info->curr_part_elem->has_null_value)
            {
              my_error(ER_MULTIPLE_DEF_CONST_IN_LIST_PART_ERROR, MYF(0));
              YYABORT;
            }
            Lex->part_info->curr_part_elem->has_null_value= TRUE;
          }
          else if (part_expr->result_type() != INT_RESULT &&
                   !part_expr->null_value)
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          {
            yyerror(ER(ER_INCONSISTENT_TYPE_OF_FUNCTIONS_ERROR));
            YYABORT;
          }
3656
          $$= value_ptr; 
3657
        }
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        ;
3659 3660

opt_sub_partition:
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        /* empty */
        {
          if (Lex->part_info->no_subparts != 0 &&
              !Lex->part_info->use_default_subpartitions)
          {
            yyerror(ER(ER_PARTITION_WRONG_NO_SUBPART_ERROR));
            YYABORT;
          }
        }
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        | '(' sub_part_list ')'
        {
          LEX *lex= Lex;
          partition_info *part_info= lex->part_info;
          if (part_info->no_subparts != 0)
          {
            if (part_info->no_subparts !=
                part_info->count_curr_subparts)
            {
              yyerror(ER(ER_PARTITION_WRONG_NO_SUBPART_ERROR));
              YYABORT;
            }
          }
          else if (part_info->count_curr_subparts > 0)
          {
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            if (part_info->partitions.elements > 1)
            {
              yyerror(ER(ER_PARTITION_WRONG_NO_SUBPART_ERROR));
              YYABORT;
            }
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            part_info->no_subparts= part_info->count_curr_subparts;
          }
          part_info->count_curr_subparts= 0;
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        }
        ;
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sub_part_list:
        sub_part_definition {}
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        | sub_part_list ',' sub_part_definition {}
        ;
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sub_part_definition:
        SUBPARTITION_SYM
        {
          LEX *lex= Lex;
          partition_info *part_info= lex->part_info;
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          partition_element *curr_part= part_info->current_partition;
          partition_element *sub_p_elem= new partition_element(curr_part);
          if (!sub_p_elem ||
           curr_part->subpartitions.push_back(sub_p_elem))
3710
          {
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            mem_alloc_error(sizeof(partition_element));
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            YYABORT;
          }
3714
          part_info->curr_part_elem= sub_p_elem;
3715
          part_info->use_default_subpartitions= FALSE;
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          part_info->use_default_no_subpartitions= FALSE;
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          part_info->count_curr_subparts++;
        }
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        sub_name opt_part_options {}
        ;
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sub_name:
        ident_or_text
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        { Lex->part_info->curr_part_elem->partition_name= $1.str; }
        ;
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opt_part_options:
       /* empty */ {}
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       | opt_part_option_list {}
       ;
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opt_part_option_list:
       opt_part_option_list opt_part_option {}
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       | opt_part_option {}
       ;
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opt_part_option:
        TABLESPACE opt_equal ident_or_text
        { Lex->part_info->curr_part_elem->tablespace_name= $3.str; }
        | opt_storage ENGINE_SYM opt_equal storage_engines
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        {
          LEX *lex= Lex;
          lex->part_info->curr_part_elem->engine_type= $4;
          lex->part_info->default_engine_type= $4;
        }
3746
        | NODEGROUP_SYM opt_equal real_ulong_num
3747
        { Lex->part_info->curr_part_elem->nodegroup_id= $3; }
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        | MAX_ROWS opt_equal real_ulonglong_num
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        { Lex->part_info->curr_part_elem->part_max_rows= $3; }
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        | MIN_ROWS opt_equal real_ulonglong_num
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        { Lex->part_info->curr_part_elem->part_min_rows= $3; }
        | DATA_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys
        { Lex->part_info->curr_part_elem->data_file_name= $4.str; }
        | INDEX_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys
        { Lex->part_info->curr_part_elem->index_file_name= $4.str; }
        | COMMENT_SYM opt_equal TEXT_STRING_sys
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        { Lex->part_info->curr_part_elem->part_comment= $3.str; }
        ;
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/*
 End of partition parser part
*/

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create_select:
3765
          SELECT_SYM
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          {
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	    LEX *lex=Lex;
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	    lex->lock_option= using_update_log ? TL_READ_NO_INSERT : TL_READ;
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	    if (lex->sql_command == SQLCOM_INSERT)
	      lex->sql_command= SQLCOM_INSERT_SELECT;
	    else if (lex->sql_command == SQLCOM_REPLACE)
	      lex->sql_command= SQLCOM_REPLACE_SELECT;
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	    /*
              The following work only with the local list, the global list
              is created correctly in this case
	    */
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	    lex->current_select->table_list.save_and_clear(&lex->save_list);
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	    mysql_init_select(lex);
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	    lex->current_select->parsing_place= SELECT_LIST;
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          }
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          select_options select_item_list
	  {
3783
	    Select->parsing_place= NO_MATTER;
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	  }
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	  opt_select_from
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	  {
	    /*
              The following work only with the local list, the global list
              is created correctly in this case
	    */
	    Lex->current_select->table_list.push_front(&Lex->save_list);
	  }
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        ;
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opt_as:
	/* empty */ {}
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	| AS	    {};
3798

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opt_create_database_options:
	/* empty */			{}
	| create_database_options	{};

create_database_options:
	create_database_option					{}
	| create_database_options create_database_option	{};

create_database_option:
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	default_collation   {}
	| default_charset   {};
3810

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opt_table_options:
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	/* empty */	 { $$= 0; }
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	| table_options  { $$= $1;};
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table_options:
	table_option	{ $$=$1; }
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	| table_option table_options { $$= $1 | $2; };
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table_option:
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	TEMPORARY	{ $$=HA_LEX_CREATE_TMP_TABLE; };
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opt_if_not_exists:
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	/* empty */	 { $$= 0; }
3824
	| IF not EXISTS	 { $$=HA_LEX_CREATE_IF_NOT_EXISTS; };
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opt_create_table_options:
	/* empty */
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	| create_table_options;
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create_table_options_space_separated:
	create_table_option
	| create_table_option create_table_options_space_separated;

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create_table_options:
	create_table_option
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	| create_table_option     create_table_options
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	| create_table_option ',' create_table_options;
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create_table_option:
3840
	ENGINE_SYM opt_equal storage_engines    { Lex->create_info.db_type= $3; Lex->create_info.used_fields|= HA_CREATE_USED_ENGINE; }
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	| TYPE_SYM opt_equal storage_engines
          {
            Lex->create_info.db_type= $3;
            WARN_DEPRECATED(yythd, "5.2", "TYPE=storage_engine",
                            "'ENGINE=storage_engine'");
            Lex->create_info.used_fields|= HA_CREATE_USED_ENGINE;
          }
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	| MAX_ROWS opt_equal ulonglong_num	{ Lex->create_info.max_rows= $3; Lex->create_info.used_fields|= HA_CREATE_USED_MAX_ROWS;}
	| MIN_ROWS opt_equal ulonglong_num	{ Lex->create_info.min_rows= $3; Lex->create_info.used_fields|= HA_CREATE_USED_MIN_ROWS;}
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	| AVG_ROW_LENGTH opt_equal ulong_num	{ Lex->create_info.avg_row_length=$3; Lex->create_info.used_fields|= HA_CREATE_USED_AVG_ROW_LENGTH;}
3851
	| PASSWORD opt_equal TEXT_STRING_sys	{ Lex->create_info.password=$3.str; Lex->create_info.used_fields|= HA_CREATE_USED_PASSWORD; }
3852
	| COMMENT_SYM opt_equal TEXT_STRING_sys	{ Lex->create_info.comment=$3; Lex->create_info.used_fields|= HA_CREATE_USED_COMMENT; }
3853
	| AUTO_INC opt_equal ulonglong_num	{ Lex->create_info.auto_increment_value=$3; Lex->create_info.used_fields|= HA_CREATE_USED_AUTO;}
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        | PACK_KEYS_SYM opt_equal ulong_num
          {
            switch($3) {
            case 0:
                Lex->create_info.table_options|= HA_OPTION_NO_PACK_KEYS;
                break;
            case 1:
                Lex->create_info.table_options|= HA_OPTION_PACK_KEYS;
                break;
            default:
                yyerror(ER(ER_SYNTAX_ERROR));
                YYABORT;
            }
            Lex->create_info.used_fields|= HA_CREATE_USED_PACK_KEYS;
          }
        | PACK_KEYS_SYM opt_equal DEFAULT
          {
            Lex->create_info.table_options&=
              ~(HA_OPTION_PACK_KEYS | HA_OPTION_NO_PACK_KEYS);
            Lex->create_info.used_fields|= HA_CREATE_USED_PACK_KEYS;
          }
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	| CHECKSUM_SYM opt_equal ulong_num	{ Lex->create_info.table_options|= $3 ? HA_OPTION_CHECKSUM : HA_OPTION_NO_CHECKSUM; Lex->create_info.used_fields|= HA_CREATE_USED_CHECKSUM; }
	| DELAY_KEY_WRITE_SYM opt_equal ulong_num { Lex->create_info.table_options|= $3 ? HA_OPTION_DELAY_KEY_WRITE : HA_OPTION_NO_DELAY_KEY_WRITE;  Lex->create_info.used_fields|= HA_CREATE_USED_DELAY_KEY_WRITE; }
3877
	| ROW_FORMAT_SYM opt_equal row_types	{ Lex->create_info.row_type= $3;  Lex->create_info.used_fields|= HA_CREATE_USED_ROW_FORMAT; }
3878
	| UNION_SYM opt_equal '(' table_list ')'
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	  {
	    /* Move the union list to the merge_list */
	    LEX *lex=Lex;
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	    TABLE_LIST *table_list= lex->select_lex.get_table_list();
	    lex->create_info.merge_list= lex->select_lex.table_list;
3884
	    lex->create_info.merge_list.elements--;
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	    lex->create_info.merge_list.first=
	      (byte*) (table_list->next_local);
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	    lex->select_lex.table_list.elements=1;
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	    lex->select_lex.table_list.next=
	      (byte**) &(table_list->next_local);
	    table_list->next_local= 0;
3891
	    lex->create_info.used_fields|= HA_CREATE_USED_UNION;
3892
	  }
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	| default_charset
	| default_collation
3895
	| INSERT_METHOD opt_equal merge_insert_types   { Lex->create_info.merge_insert_method= $3; Lex->create_info.used_fields|= HA_CREATE_USED_INSERT_METHOD;}
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	| DATA_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys { Lex->create_info.data_file_name= $4.str; Lex->create_info.used_fields|= HA_CREATE_USED_DATADIR; }
	| INDEX_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys { Lex->create_info.index_file_name= $4.str;  Lex->create_info.used_fields|= HA_CREATE_USED_INDEXDIR; }
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        | TABLESPACE ident {Lex->create_info.tablespace= $2.str;}
        | STORAGE_SYM DISK_SYM {Lex->create_info.store_on_disk= TRUE;}
        | STORAGE_SYM MEMORY_SYM {Lex->create_info.store_on_disk= FALSE;}
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	| CONNECTION_SYM opt_equal TEXT_STRING_sys { Lex->create_info.connect_string.str= $3.str; Lex->create_info.connect_string.length= $3.length;  Lex->create_info.used_fields|= HA_CREATE_USED_CONNECTION; }
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	| KEY_BLOCK_SIZE opt_equal ulong_num
	  {
	    Lex->create_info.used_fields|= HA_CREATE_USED_KEY_BLOCK_SIZE;
	    Lex->create_info.key_block_size= $3;
	  }
3907
        ;
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default_charset:
        opt_default charset opt_equal charset_name_or_default
        {
          HA_CREATE_INFO *cinfo= &Lex->create_info;
          if ((cinfo->used_fields & HA_CREATE_USED_DEFAULT_CHARSET) &&
               cinfo->default_table_charset && $4 &&
               !my_charset_same(cinfo->default_table_charset,$4))
          {
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            my_error(ER_CONFLICTING_DECLARATIONS, MYF(0),
                     "CHARACTER SET ", cinfo->default_table_charset->csname,
                     "CHARACTER SET ", $4->csname);
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            YYABORT;
          }
	  Lex->create_info.default_table_charset= $4;
          Lex->create_info.used_fields|= HA_CREATE_USED_DEFAULT_CHARSET;
        };

default_collation:
        opt_default COLLATE_SYM opt_equal collation_name_or_default
        {
          HA_CREATE_INFO *cinfo= &Lex->create_info;
          if ((cinfo->used_fields & HA_CREATE_USED_DEFAULT_CHARSET) &&
               cinfo->default_table_charset && $4 &&
               !my_charset_same(cinfo->default_table_charset,$4))
            {
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              my_error(ER_COLLATION_CHARSET_MISMATCH, MYF(0),
                       $4->name, cinfo->default_table_charset->csname);
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              YYABORT;
            }
            Lex->create_info.default_table_charset= $4;
            Lex->create_info.used_fields|= HA_CREATE_USED_DEFAULT_CHARSET;
        };

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storage_engines:
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	ident_or_text
	{
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	  $$ = ha_resolve_by_name(YYTHD, &$1);
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	  if ($$ == NULL)
          if (YYTHD->variables.sql_mode & MODE_NO_ENGINE_SUBSTITUTION)
3948
	  {
3949
	    my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), $1.str);
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	    YYABORT;
	  }
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          else
          {
            push_warning_printf(YYTHD, MYSQL_ERROR::WARN_LEVEL_ERROR,
                                ER_UNKNOWN_STORAGE_ENGINE,
                                ER(ER_UNKNOWN_STORAGE_ENGINE), $1.str);
          }
3958
	};
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row_types:
	DEFAULT		{ $$= ROW_TYPE_DEFAULT; }
	| FIXED_SYM	{ $$= ROW_TYPE_FIXED; }
	| DYNAMIC_SYM	{ $$= ROW_TYPE_DYNAMIC; }
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	| COMPRESSED_SYM { $$= ROW_TYPE_COMPRESSED; }
	| REDUNDANT_SYM	{ $$= ROW_TYPE_REDUNDANT; }
	| COMPACT_SYM	{ $$= ROW_TYPE_COMPACT; };
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merge_insert_types:
       NO_SYM            { $$= MERGE_INSERT_DISABLED; }
       | FIRST_SYM       { $$= MERGE_INSERT_TO_FIRST; }
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       | LAST_SYM        { $$= MERGE_INSERT_TO_LAST; };
3972

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opt_select_from:
3974
	opt_limit_clause {}
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	| select_from select_lock_type;
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udf_func_type:
3978
	/* empty */	{ $$ = UDFTYPE_FUNCTION; }
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	| AGGREGATE_SYM { $$ = UDFTYPE_AGGREGATE; };
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udf_type:
	STRING_SYM {$$ = (int) STRING_RESULT; }
	| REAL {$$ = (int) REAL_RESULT; }
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        | DECIMAL_SYM {$$ = (int) DECIMAL_RESULT; }
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	| INT_SYM {$$ = (int) INT_RESULT; };
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field_list:
	  field_list_item
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	| field_list ',' field_list_item;
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field_list_item:
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	   column_def
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         | key_def
         ;

column_def:
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	  field_spec opt_check_constraint
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	| field_spec references
	  {
	    Lex->col_list.empty();		/* Alloced by sql_alloc */
	  }
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	;
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key_def:
4006
	key_type opt_ident key_alg '(' key_list ')' key_options
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	  {
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	    LEX *lex=Lex;
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	    if ($1 != Key::FULLTEXT && lex->key_create_info.parser_name.str)
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	    {
	      yyerror(ER(ER_SYNTAX_ERROR));
	      YYABORT;
	    }
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	    lex->key_list.push_back(new Key($1,$2, &lex->key_create_info, 0,
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					   lex->col_list));
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	    lex->col_list.empty();		/* Alloced by sql_alloc */
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	  }
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	| opt_constraint constraint_key_type opt_ident key_alg
	  '(' key_list ')' key_options
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	  {
	    LEX *lex=Lex;
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	    const char *key_name= $3 ? $3 : $1;
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	    lex->key_list.push_back(new Key($2, key_name, &lex->key_create_info, 0,
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					    lex->col_list));
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	    lex->col_list.empty();		/* Alloced by sql_alloc */
	  }
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	| opt_constraint FOREIGN KEY_SYM opt_ident '(' key_list ')' references
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	  {
4029
	    LEX *lex=Lex;
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	    lex->key_list.push_back(new foreign_key($4 ? $4:$1, lex->col_list,
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				    $8,
				    lex->ref_list,
				    lex->fk_delete_opt,
				    lex->fk_update_opt,
				    lex->fk_match_option));
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	    lex->key_list.push_back(new Key(Key::MULTIPLE, $4 ? $4 : $1,
4037
					    &default_key_create_info, 1,
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					    lex->col_list));
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	    lex->col_list.empty();		/* Alloced by sql_alloc */
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            /* Only used for ALTER TABLE. Ignored otherwise. */
            lex->alter_info.flags|= ALTER_FOREIGN_KEY;
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	  }
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	| constraint opt_check_constraint
	  {
	    Lex->col_list.empty();		/* Alloced by sql_alloc */
	  }
4048
	| opt_constraint check_constraint
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	  {
	    Lex->col_list.empty();		/* Alloced by sql_alloc */
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	  }
	;

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opt_check_constraint:
4055
	/* empty */
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	| check_constraint
	;

check_constraint:
	CHECK_SYM expr
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	;
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opt_constraint:
4064
	/* empty */		{ $$=(char*) 0; }
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	| constraint		{ $$= $1; }
	;

constraint:
	CONSTRAINT opt_ident	{ $$=$2; }
	;
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field_spec:
	field_ident
	 {
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	   LEX *lex=Lex;
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	   lex->length=lex->dec=0; lex->type=0;
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	   lex->default_value= lex->on_update_value= 0;
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           lex->comment=null_lex_str;
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	   lex->charset=NULL;
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	 }
	type opt_attribute
	{
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	  LEX *lex=Lex;
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	  if (add_field_to_list(lex->thd, $1.str,
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				(enum enum_field_types) $3,
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				lex->length,lex->dec,lex->type,
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				lex->default_value, lex->on_update_value, 
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                                &lex->comment,
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				lex->change,&lex->interval_list,lex->charset,
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				lex->uint_geom_type))
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	    YYABORT;
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	};
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type:
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	int_type opt_len field_options	{ $$=$1; }
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	| real_type opt_precision field_options { $$=$1; }
	| FLOAT_SYM float_options field_options { $$=FIELD_TYPE_FLOAT; }
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	| BIT_SYM			{ Lex->length= (char*) "1";
					  $$=FIELD_TYPE_BIT; }
	| BIT_SYM '(' NUM ')'		{ Lex->length= $3.str;
					  $$=FIELD_TYPE_BIT; }
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	| BOOL_SYM			{ Lex->length=(char*) "1";
					  $$=FIELD_TYPE_TINY; }
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	| BOOLEAN_SYM			{ Lex->length=(char*) "1";
					  $$=FIELD_TYPE_TINY; }
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	| char '(' NUM ')' opt_binary	{ Lex->length=$3.str;
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					  $$=FIELD_TYPE_STRING; }
	| char opt_binary		{ Lex->length=(char*) "1";
					  $$=FIELD_TYPE_STRING; }
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	| nchar '(' NUM ')' opt_bin_mod	{ Lex->length=$3.str;
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					  $$=FIELD_TYPE_STRING;
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					  Lex->charset=national_charset_info; }
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	| nchar opt_bin_mod		{ Lex->length=(char*) "1";
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					  $$=FIELD_TYPE_STRING;
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					  Lex->charset=national_charset_info; }
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	| BINARY '(' NUM ')'		{ Lex->length=$3.str;
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					  Lex->charset=&my_charset_bin;
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					  $$=FIELD_TYPE_STRING; }
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	| BINARY			{ Lex->length= (char*) "1";
					  Lex->charset=&my_charset_bin;
					  $$=FIELD_TYPE_STRING; }
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	| varchar '(' NUM ')' opt_binary { Lex->length=$3.str;
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					  $$= MYSQL_TYPE_VARCHAR; }
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	| nvarchar '(' NUM ')' opt_bin_mod { Lex->length=$3.str;
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					  $$= MYSQL_TYPE_VARCHAR;
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					  Lex->charset=national_charset_info; }
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	| VARBINARY '(' NUM ')' 	{ Lex->length=$3.str;
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					  Lex->charset=&my_charset_bin;
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					  $$= MYSQL_TYPE_VARCHAR; }
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	| YEAR_SYM opt_len field_options { $$=FIELD_TYPE_YEAR; }
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	| DATE_SYM			{ $$=FIELD_TYPE_DATE; }
	| TIME_SYM			{ $$=FIELD_TYPE_TIME; }
4133
	| TIMESTAMP opt_len
4134
	  {
4135
	    if (YYTHD->variables.sql_mode & MODE_MAXDB)
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	      $$=FIELD_TYPE_DATETIME;
	    else
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            {
              /* 
                Unlike other types TIMESTAMP fields are NOT NULL by default.
              */
              Lex->type|= NOT_NULL_FLAG;
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	      $$=FIELD_TYPE_TIMESTAMP;
4144
            }
4145
	   }
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	| DATETIME			{ $$=FIELD_TYPE_DATETIME; }
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	| TINYBLOB			{ Lex->charset=&my_charset_bin;
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					  $$=FIELD_TYPE_TINY_BLOB; }
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	| BLOB_SYM opt_len		{ Lex->charset=&my_charset_bin;
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					  $$=FIELD_TYPE_BLOB; }
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	| spatial_type
          {
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#ifdef HAVE_SPATIAL
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            Lex->charset=&my_charset_bin;
            Lex->uint_geom_type= (uint)$1;
            $$=FIELD_TYPE_GEOMETRY;
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#else
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            my_error(ER_FEATURE_DISABLED, MYF(0),
4159
                     sym_group_geom.name, sym_group_geom.needed_define);
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            YYABORT;
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#endif
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          }
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	| MEDIUMBLOB			{ Lex->charset=&my_charset_bin;
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					  $$=FIELD_TYPE_MEDIUM_BLOB; }
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	| LONGBLOB			{ Lex->charset=&my_charset_bin;
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					  $$=FIELD_TYPE_LONG_BLOB; }
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	| LONG_SYM VARBINARY		{ Lex->charset=&my_charset_bin;
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					  $$=FIELD_TYPE_MEDIUM_BLOB; }
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	| LONG_SYM varchar opt_binary	{ $$=FIELD_TYPE_MEDIUM_BLOB; }
	| TINYTEXT opt_binary		{ $$=FIELD_TYPE_TINY_BLOB; }
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	| TEXT_SYM opt_len opt_binary	{ $$=FIELD_TYPE_BLOB; }
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	| MEDIUMTEXT opt_binary		{ $$=FIELD_TYPE_MEDIUM_BLOB; }
	| LONGTEXT opt_binary		{ $$=FIELD_TYPE_LONG_BLOB; }
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	| DECIMAL_SYM float_options field_options
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                                        { $$=FIELD_TYPE_NEWDECIMAL;}
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	| NUMERIC_SYM float_options field_options
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                                        { $$=FIELD_TYPE_NEWDECIMAL;}
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	| FIXED_SYM float_options field_options
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                                        { $$=FIELD_TYPE_NEWDECIMAL;}
4180
	| ENUM {Lex->interval_list.empty();} '(' string_list ')' opt_binary
4181
	  { $$=FIELD_TYPE_ENUM; }
4182
	| SET { Lex->interval_list.empty();} '(' string_list ')' opt_binary
4183
	  { $$=FIELD_TYPE_SET; }
4184
	| LONG_SYM opt_binary		{ $$=FIELD_TYPE_MEDIUM_BLOB; }
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	| SERIAL_SYM
	  {
	    $$=FIELD_TYPE_LONGLONG;
	    Lex->type|= (AUTO_INCREMENT_FLAG | NOT_NULL_FLAG | UNSIGNED_FLAG |
		         UNIQUE_FLAG);
	  }
4191
	;
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spatial_type:
	GEOMETRY_SYM	      { $$= Field::GEOM_GEOMETRY; }
	| GEOMETRYCOLLECTION  { $$= Field::GEOM_GEOMETRYCOLLECTION; }
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	| POINT_SYM           { Lex->length= (char*)"21";
                                $$= Field::GEOM_POINT;
                              }
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	| MULTIPOINT          { $$= Field::GEOM_MULTIPOINT; }
	| LINESTRING          { $$= Field::GEOM_LINESTRING; }
	| MULTILINESTRING     { $$= Field::GEOM_MULTILINESTRING; }
	| POLYGON             { $$= Field::GEOM_POLYGON; }
	| MULTIPOLYGON        { $$= Field::GEOM_MULTIPOLYGON; }
	;

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char:
	CHAR_SYM {}
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	;

nchar:
	NCHAR_SYM {}
	| NATIONAL_SYM CHAR_SYM {}
	;
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varchar:
	char VARYING {}
	| VARCHAR {}
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	;

nvarchar:
	NATIONAL_SYM VARCHAR {}
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	| NVARCHAR_SYM {}
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	| NCHAR_SYM VARCHAR {}
	| NATIONAL_SYM CHAR_SYM VARYING {}
	| NCHAR_SYM VARYING {}
	;
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int_type:
	INT_SYM		{ $$=FIELD_TYPE_LONG; }
	| TINYINT	{ $$=FIELD_TYPE_TINY; }
	| SMALLINT	{ $$=FIELD_TYPE_SHORT; }
	| MEDIUMINT	{ $$=FIELD_TYPE_INT24; }
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	| BIGINT	{ $$=FIELD_TYPE_LONGLONG; };
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real_type:
4236
	REAL		{ $$= YYTHD->variables.sql_mode & MODE_REAL_AS_FLOAT ?
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			      FIELD_TYPE_FLOAT : FIELD_TYPE_DOUBLE; }
	| DOUBLE_SYM	{ $$=FIELD_TYPE_DOUBLE; }
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	| DOUBLE_SYM PRECISION { $$=FIELD_TYPE_DOUBLE; };
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float_options:
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        /* empty */		{ Lex->dec=Lex->length= (char*)0; }
        | '(' NUM ')'		{ Lex->length=$2.str; Lex->dec= (char*)0; }
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	| precision		{};
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precision:
	'(' NUM ',' NUM ')'
	{
	  LEX *lex=Lex;
	  lex->length=$2.str; lex->dec=$4.str;
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	};
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field_options:
	/* empty */		{}
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	| field_opt_list	{};
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field_opt_list:
	field_opt_list field_option {}
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	| field_option {};
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field_option:
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	SIGNED_SYM	{}
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	| UNSIGNED	{ Lex->type|= UNSIGNED_FLAG;}
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	| ZEROFILL	{ Lex->type|= UNSIGNED_FLAG | ZEROFILL_FLAG; };
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opt_len:
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	/* empty */	{ Lex->length=(char*) 0; } /* use default length */
	| '(' NUM ')'	{ Lex->length= $2.str; };
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opt_precision:
	/* empty */	{}
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	| precision	{};
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opt_attribute:
	/* empty */ {}
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	| opt_attribute_list {};
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opt_attribute_list:
	opt_attribute_list attribute {}
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	| attribute;
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attribute:
	NULL_SYM	  { Lex->type&= ~ NOT_NULL_FLAG; }
4285
	| not NULL_SYM	  { Lex->type|= NOT_NULL_FLAG; }
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	| DEFAULT now_or_signed_literal { Lex->default_value=$2; }
	| ON UPDATE_SYM NOW_SYM optional_braces 
          { Lex->on_update_value= new Item_func_now_local(); }
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	| AUTO_INC	  { Lex->type|= AUTO_INCREMENT_FLAG | NOT_NULL_FLAG; }
4290
	| SERIAL_SYM DEFAULT VALUE_SYM
4291 4292 4293
	  { 
	    LEX *lex=Lex;
	    lex->type|= AUTO_INCREMENT_FLAG | NOT_NULL_FLAG | UNIQUE_FLAG; 
4294
	    lex->alter_info.flags|= ALTER_ADD_INDEX; 
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	  }
	| opt_primary KEY_SYM 
	  {
	    LEX *lex=Lex;
	    lex->type|= PRI_KEY_FLAG | NOT_NULL_FLAG; 
4300
	    lex->alter_info.flags|= ALTER_ADD_INDEX; 
4301 4302 4303 4304 4305
	  }
	| UNIQUE_SYM	  
	  {
	    LEX *lex=Lex;
	    lex->type|= UNIQUE_FLAG; 
4306
	    lex->alter_info.flags|= ALTER_ADD_INDEX; 
4307 4308 4309 4310 4311
	  }
	| UNIQUE_SYM KEY_SYM 
	  {
	    LEX *lex=Lex;
	    lex->type|= UNIQUE_KEY_FLAG; 
4312
	    lex->alter_info.flags|= ALTER_ADD_INDEX; 
4313
	  }
4314
	| COMMENT_SYM TEXT_STRING_sys { Lex->comment= $2; }
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	| COLLATE_SYM collation_name
	  {
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	    if (Lex->charset && !my_charset_same(Lex->charset,$2))
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	    {
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	      my_error(ER_COLLATION_CHARSET_MISMATCH, MYF(0),
                       $2->name,Lex->charset->csname);
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	      YYABORT;
	    }
	    else
	    {
	      Lex->charset=$2;
	    }
	  }
	;
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now_or_signed_literal:
        NOW_SYM optional_braces { $$= new Item_func_now_local(); }
        | signed_literal { $$=$1; }
        ;

4335 4336 4337 4338
charset:
	CHAR_SYM SET	{}
	| CHARSET	{}
	;
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4340
charset_name:
4341
	ident_or_text
4342
	{
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	  if (!($$=get_charset_by_csname($1.str,MY_CS_PRIMARY,MYF(0))))
4344
	  {
4345
	    my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), $1.str);
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	    YYABORT;
	  }
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	}
	| BINARY { $$= &my_charset_bin; }
	;
4351

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charset_name_or_default:
	charset_name { $$=$1;   }
	| DEFAULT    { $$=NULL; } ;
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old_or_new_charset_name:
	ident_or_text
	{
	  if (!($$=get_charset_by_csname($1.str,MY_CS_PRIMARY,MYF(0))) &&
	      !($$=get_old_charset_by_name($1.str)))
	  {
4363
	    my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), $1.str);
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	    YYABORT;
	  }
	}
	| BINARY { $$= &my_charset_bin; }
	;

old_or_new_charset_name_or_default:
	old_or_new_charset_name { $$=$1;   }
	| DEFAULT    { $$=NULL; } ;

4374
collation_name:
4375
	ident_or_text
4376 4377 4378
	{
	  if (!($$=get_charset_by_name($1.str,MYF(0))))
	  {
4379
	    my_error(ER_UNKNOWN_COLLATION, MYF(0), $1.str);
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	    YYABORT;
	  }
	};

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opt_collate:
	/* empty */	{ $$=NULL; }
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	| COLLATE_SYM collation_name_or_default { $$=$2; }
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	;

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collation_name_or_default:
	collation_name { $$=$1;   }
	| DEFAULT    { $$=NULL; } ;

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opt_default:
	/* empty */	{}
	| DEFAULT	{};

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opt_binary:
4398
	/* empty */			{ Lex->charset=NULL; }
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	| ASCII_SYM opt_bin_mod		{ Lex->charset=&my_charset_latin1; }
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	| BYTE_SYM			{ Lex->charset=&my_charset_bin; }
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	| UNICODE_SYM opt_bin_mod
	{
	  if (!(Lex->charset=get_charset_by_csname("ucs2",
                                                   MY_CS_PRIMARY,MYF(0))))
	  {
	    my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), "ucs2");
	    YYABORT;
	  }
	}
	| charset charset_name opt_bin_mod	{ Lex->charset=$2; }
        | BINARY opt_bin_charset { Lex->type|= BINCMP_FLAG; };

opt_bin_mod:
	/* empty */ { }
	| BINARY { Lex->type|= BINCMP_FLAG; };

opt_bin_charset:
4418
        /* empty */ { Lex->charset= NULL; }
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	| ASCII_SYM	{ Lex->charset=&my_charset_latin1; }
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	| UNICODE_SYM
	{
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	  if (!(Lex->charset=get_charset_by_csname("ucs2",
                                                   MY_CS_PRIMARY,MYF(0))))
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	  {
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	    my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), "ucs2");
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	    YYABORT;
	  }
	}
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	| charset charset_name	{ Lex->charset=$2; } ;
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opt_primary:
	/* empty */
	| PRIMARY_SYM
4434
	;
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references:
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	REFERENCES table_ident
	{
4439
	  LEX *lex=Lex;
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	  lex->fk_delete_opt= lex->fk_update_opt= lex->fk_match_option= 0;
	  lex->ref_list.empty();
	}
	opt_ref_list
	{
	  $$=$2;
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	};
4447

4448
opt_ref_list:
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	/* empty */ opt_on_delete {}
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	| '(' ref_list ')' opt_on_delete {};
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ref_list:
	ref_list ',' ident	{ Lex->ref_list.push_back(new key_part_spec($3.str)); }
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	| ident			{ Lex->ref_list.push_back(new key_part_spec($1.str)); };
4455

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opt_on_delete:
	/* empty */ {}
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	| opt_on_delete_list {};
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opt_on_delete_list:
	opt_on_delete_list opt_on_delete_item {}
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	| opt_on_delete_item {};
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opt_on_delete_item:
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	ON DELETE_SYM delete_option   { Lex->fk_delete_opt= $3; }
	| ON UPDATE_SYM delete_option { Lex->fk_update_opt= $3; }
	| MATCH FULL	{ Lex->fk_match_option= foreign_key::FK_MATCH_FULL; }
	| MATCH PARTIAL { Lex->fk_match_option= foreign_key::FK_MATCH_PARTIAL; }
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	| MATCH SIMPLE_SYM { Lex->fk_match_option= foreign_key::FK_MATCH_SIMPLE; };
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delete_option:
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	RESTRICT	 { $$= (int) foreign_key::FK_OPTION_RESTRICT; }
	| CASCADE	 { $$= (int) foreign_key::FK_OPTION_CASCADE; }
	| SET NULL_SYM   { $$= (int) foreign_key::FK_OPTION_SET_NULL; }
	| NO_SYM ACTION  { $$= (int) foreign_key::FK_OPTION_NO_ACTION; }
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	| SET DEFAULT    { $$= (int) foreign_key::FK_OPTION_DEFAULT;  };
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key_type:
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	key_or_index			    { $$= Key::MULTIPLE; }
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	| FULLTEXT_SYM opt_key_or_index	    { $$= Key::FULLTEXT; }
	| SPATIAL_SYM opt_key_or_index
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	  {
#ifdef HAVE_SPATIAL
	    $$= Key::SPATIAL;
#else
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	    my_error(ER_FEATURE_DISABLED, MYF(0),
                     sym_group_geom.name, sym_group_geom.needed_define);
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	    YYABORT;
#endif
	  };
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constraint_key_type:
	PRIMARY_SYM KEY_SYM  { $$= Key::PRIMARY; }
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	| UNIQUE_SYM opt_key_or_index { $$= Key::UNIQUE; };
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key_or_index:
	KEY_SYM {}
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	| INDEX_SYM {};
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opt_key_or_index:
	/* empty */ {}
	| key_or_index
	;

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keys_or_index:
	KEYS {}
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	| INDEX_SYM {}
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	| INDEXES {};
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opt_unique_or_fulltext:
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	/* empty */	{ $$= Key::MULTIPLE; }
	| UNIQUE_SYM	{ $$= Key::UNIQUE; }
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	| FULLTEXT_SYM	{ $$= Key::FULLTEXT;}
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	| SPATIAL_SYM
	  {
#ifdef HAVE_SPATIAL
	    $$= Key::SPATIAL;
#else
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            my_error(ER_FEATURE_DISABLED, MYF(0),
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                     sym_group_geom.name, sym_group_geom.needed_define);
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	    YYABORT;
#endif
	  }
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        ;
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init_key_options:
	{
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	  Lex->key_create_info= default_key_create_info;
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	}
	;

/*
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  For now, key_alg initializies lex->key_create_info.
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  In the future, when all key options are after key definition,
  we can remove key_alg and move init_key_options to key_options
*/

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key_alg:
4540
	/* empty */ init_key_options
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	| init_key_options key_using_alg
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	;

key_options:
	/* empty */ {}
	| key_opts
	;

key_opts:
	key_opt
	| key_opts key_opt
	;
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key_using_alg:
	USING btree_or_rtree       { Lex->key_create_info.algorithm= $2; }
	| TYPE_SYM btree_or_rtree  { Lex->key_create_info.algorithm= $2; }
        ;

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key_opt:
4560
        key_using_alg
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	| KEY_BLOCK_SIZE opt_equal ulong_num
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	  { Lex->key_create_info.block_size= $3; }
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	| WITH PARSER_SYM IDENT_sys
          {
            if (plugin_is_ready(&$3, MYSQL_FTPARSER_PLUGIN))
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              Lex->key_create_info.parser_name= $3;
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            else
            {
              my_error(ER_FUNCTION_NOT_DEFINED, MYF(0), $3.str);
              YYABORT;
            }
          }
        ;

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btree_or_rtree:
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	BTREE_SYM	{ $$= HA_KEY_ALG_BTREE; }
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	| RTREE_SYM
	  {
	    $$= HA_KEY_ALG_RTREE;
	  }
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	| HASH_SYM	{ $$= HA_KEY_ALG_HASH; };
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key_list:
	key_list ',' key_part order_dir { Lex->col_list.push_back($3); }
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	| key_part order_dir		{ Lex->col_list.push_back($1); };
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key_part:
	ident			{ $$=new key_part_spec($1.str); }
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	| ident '(' NUM ')'
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        {
          int key_part_len= atoi($3.str);
          if (!key_part_len)
          {
4595
            my_error(ER_KEY_PART_0, MYF(0), $1.str);
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          }
          $$=new key_part_spec($1.str,(uint) key_part_len);
        };
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opt_ident:
	/* empty */	{ $$=(char*) 0; }	/* Defaultlength */
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	| field_ident	{ $$=$1.str; };
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opt_component:
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        /* empty */      { $$= null_lex_str; }
        | '.' ident      { $$= $2; };
4607

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string_list:
	text_string			{ Lex->interval_list.push_back($1); }
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	| string_list ',' text_string	{ Lex->interval_list.push_back($3); };
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/*
** Alter table
*/

alter:
	ALTER opt_ignore TABLE_SYM table_ident
	{
4619
	  THD *thd= YYTHD;
4620
	  LEX *lex= thd->lex;
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         lex->name= 0;
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	  lex->sql_command= SQLCOM_ALTER_TABLE;
	  lex->duplicates= DUP_ERROR; 
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	  if (!lex->select_lex.add_table_to_list(thd, $4, NULL,
						 TL_OPTION_UPDATING))
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	    YYABORT;
	  lex->create_list.empty();
	  lex->key_list.empty();
	  lex->col_list.empty();
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          lex->select_lex.init_order();
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	  lex->name= 0;
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	  lex->like_name= 0;
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	  lex->select_lex.db=
            ((TABLE_LIST*) lex->select_lex.table_list.first)->db;
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	  bzero((char*) &lex->create_info,sizeof(lex->create_info));
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	  lex->create_info.db_type= 0;
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	  lex->create_info.default_table_charset= NULL;
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	  lex->create_info.row_type= ROW_TYPE_NOT_USED;
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	  lex->alter_info.reset();
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	  lex->alter_info.flags= 0;
4641
          lex->no_write_to_binlog= 0;
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	}
4643
	alter_commands
4644
	{}
4645
	| ALTER DATABASE ident_or_empty
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          {
            Lex->create_info.default_table_charset= NULL;
            Lex->create_info.used_fields= 0;
          }
          opt_create_database_options
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	  {
	    LEX *lex=Lex;
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            THD *thd= Lex->thd;
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	    lex->sql_command=SQLCOM_ALTER_DB;
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	    lex->name= $3;
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            if (lex->name == NULL && thd->copy_db_to(&lex->name, NULL))
              YYABORT;
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	  }
	| ALTER PROCEDURE sp_name
	  {
	    LEX *lex= Lex;

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	    if (lex->sphead)
	    {
	      my_error(ER_SP_NO_DROP_SP, MYF(0), "PROCEDURE");
	      YYABORT;
	    }
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	    bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
          }
	  sp_a_chistics
	  {
	    LEX *lex=Lex;

	    lex->sql_command= SQLCOM_ALTER_PROCEDURE;
	    lex->spname= $3;
	  }
	| ALTER FUNCTION_SYM sp_name
	  {
	    LEX *lex= Lex;
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	    if (lex->sphead)
	    {
	      my_error(ER_SP_NO_DROP_SP, MYF(0), "FUNCTION");
	      YYABORT;
	    }
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	    bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
          }
	  sp_a_chistics
	  {
	    LEX *lex=Lex;

	    lex->sql_command= SQLCOM_ALTER_FUNCTION;
	    lex->spname= $3;
	  }
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        | ALTER view_algorithm_opt definer view_suid
          VIEW_SYM table_ident
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	  {
	    THD *thd= YYTHD;
	    LEX *lex= thd->lex;
	    lex->sql_command= SQLCOM_CREATE_VIEW;
	    lex->create_view_mode= VIEW_ALTER;
	    /* first table in list is target VIEW name */
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	    lex->select_lex.add_table_to_list(thd, $6, NULL, TL_OPTION_UPDATING);
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	  }
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	  view_list_opt AS view_select view_check_option
4706
	  {}
4707
	| ALTER EVENT_SYM sp_name
4708
          /*
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            BE CAREFUL when you add a new rule to update the block where
            YYTHD->client_capabilities is set back to original value
4711
          */
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          {
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            /* 
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              It is safe to use Lex->spname because
              ALTER EVENT xxx RENATE TO yyy DO ALTER EVENT RENAME TO
              is not allowed. Lex->spname is used in the case of RENAME TO
              If it had to be supported spname had to be added to
              Event_parse_data.
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            */
4720

4721
            if (!(Lex->event_parse_data= Event_parse_data::new_instance(YYTHD)))
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              YYABORT;
4723
            Lex->event_parse_data->identifier= $3;
4724

4725
            /*
4726
              We have to turn off CLIENT_MULTI_QUERIES while parsing a
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              stored procedure, otherwise yylex will chop it into pieces
              at each ';'.
4729
            */
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            $<ulong_num>$= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
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            YYTHD->client_capabilities &= ~CLIENT_MULTI_QUERIES;
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            Lex->sql_command= SQLCOM_ALTER_EVENT;
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          }
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          ev_alter_on_schedule_completion
          opt_ev_rename_to
          opt_ev_status
          opt_ev_comment
          opt_ev_sql_stmt
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          {
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            /*
              $1 - ALTER
              $2 - EVENT_SYM
              $3 - sp_name
              $4 - the block above
            */
            YYTHD->client_capabilities |= $<ulong_num>4;

4749
            if (!($5 || $6 || $7 || $8 || $9))
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            {
	      yyerror(ER(ER_SYNTAX_ERROR));
              YYABORT;
            }
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            /*
              sql_command is set here because some rules in ev_sql_stmt
              can overwrite it
            */
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            Lex->sql_command= SQLCOM_ALTER_EVENT;
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          }
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        | ALTER TABLESPACE alter_tablespace_info
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= ALTER_TABLESPACE;
          }
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        | ALTER LOGFILE_SYM GROUP alter_logfile_group_info
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          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= ALTER_LOGFILE_GROUP;
          }
        | ALTER TABLESPACE change_tablespace_info
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= CHANGE_FILE_TABLESPACE;
          }
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        | ALTER TABLESPACE change_tablespace_access
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          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= ALTER_ACCESS_MODE_TABLESPACE;
          }
4780
	;
4781

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ev_alter_on_schedule_completion: /* empty */ { $$= 0;}
        | ON SCHEDULE_SYM ev_schedule_time { $$= 1; }
        | ev_on_completion { $$= 1; }
        | ON SCHEDULE_SYM ev_schedule_time ev_on_completion { $$= 1; }
4786
      ;
4787

4788
opt_ev_rename_to: /* empty */ { $$= 0;}
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        | RENAME TO_SYM sp_name
          {
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            /*
              Use lex's spname to hold the new name.
              The original name is in the Event_parse_data object
            */
            Lex->spname= $3; 
4796
            $$= 1;
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          }
      ;
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opt_ev_sql_stmt: /* empty*/ { $$= 0;}
        | DO_SYM ev_sql_stmt { $$= 1; }
4802
        ;
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4804

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ident_or_empty:
	/* empty */  { $$= 0; }
	| ident      { $$= $1.str; };

4809
alter_commands:
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	| DISCARD TABLESPACE { Lex->alter_info.tablespace_op= DISCARD_TABLESPACE; }
	| IMPORT TABLESPACE { Lex->alter_info.tablespace_op= IMPORT_TABLESPACE; }
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        | alter_list
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          opt_partitioning
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        | alter_list
          remove_partitioning
        | remove_partitioning
4817
        | partitioning
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/*
4819
  This part was added for release 5.1 by Mikael Ronstrm.
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  From here we insert a number of commands to manage the partitions of a
  partitioned table such as adding partitions, dropping partitions,
  reorganising partitions in various manners. In future releases the list
  will be longer and also include moving partitions to a
  new table and so forth.
*/
        | add_partition_rule
        | DROP PARTITION_SYM alt_part_name_list
          {
	    Lex->alter_info.flags|= ALTER_DROP_PARTITION;
          }
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        | REBUILD_SYM PARTITION_SYM opt_no_write_to_binlog
          all_or_alt_part_name_list
          {
            LEX *lex= Lex;
	    lex->alter_info.flags|= ALTER_REBUILD_PARTITION;
            lex->no_write_to_binlog= $3;
          }
        | OPTIMIZE PARTITION_SYM opt_no_write_to_binlog
          all_or_alt_part_name_list
          {
            LEX *lex= Lex;
	    lex->alter_info.flags|= ALTER_OPTIMIZE_PARTITION;
            lex->no_write_to_binlog= $3;
            lex->check_opt.init();
          }
          opt_no_write_to_binlog opt_mi_check_type
        | ANALYZE_SYM PARTITION_SYM opt_no_write_to_binlog
          all_or_alt_part_name_list
          {
            LEX *lex= Lex;
	    lex->alter_info.flags|= ALTER_ANALYZE_PARTITION;
            lex->no_write_to_binlog= $3;
            lex->check_opt.init();
          }
          opt_mi_check_type
        | CHECK_SYM PARTITION_SYM all_or_alt_part_name_list
          {
            LEX *lex= Lex;
	    lex->alter_info.flags|= ALTER_CHECK_PARTITION;
            lex->check_opt.init();
          }
          opt_mi_check_type
        | REPAIR PARTITION_SYM opt_no_write_to_binlog
          all_or_alt_part_name_list
          {
            LEX *lex= Lex;
	    lex->alter_info.flags|= ALTER_REPAIR_PARTITION;
            lex->no_write_to_binlog= $3;
            lex->check_opt.init();
          }
          opt_mi_repair_type
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        | COALESCE PARTITION_SYM opt_no_write_to_binlog real_ulong_num
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          {
            LEX *lex= Lex;
	    lex->alter_info.flags|= ALTER_COALESCE_PARTITION;
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            lex->no_write_to_binlog= $3;
	    lex->alter_info.no_parts= $4;
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          }
        | reorg_partition_rule
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        ;

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remove_partitioning:
        REMOVE_SYM PARTITIONING_SYM
        {
          Lex->alter_info.flags|= ALTER_REMOVE_PARTITIONING;
        }
        ;

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all_or_alt_part_name_list:
4890
        ALL
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        {
	  Lex->alter_info.flags|= ALTER_ALL_PARTITION;
        }
        | alt_part_name_list
        ;

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add_partition_rule:
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        ADD PARTITION_SYM opt_no_write_to_binlog
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        {
          LEX *lex= Lex;
          lex->part_info= new partition_info();
          if (!lex->part_info)
          {
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            mem_alloc_error(sizeof(partition_info));
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            YYABORT;
          }
	  lex->alter_info.flags|= ALTER_ADD_PARTITION;
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          lex->no_write_to_binlog= $3;
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        }
        add_part_extra
        {}
        ;

add_part_extra:
        | '(' part_def_list ')'
        {
          LEX *lex= Lex;
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          lex->part_info->no_parts= lex->part_info->partitions.elements;
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        }
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        | PARTITIONS_SYM real_ulong_num
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        {
          LEX *lex= Lex;
          lex->part_info->no_parts= $2;
        }
        ;

reorg_partition_rule:
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        REORGANIZE_SYM PARTITION_SYM opt_no_write_to_binlog
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        {
          LEX *lex= Lex;
          lex->part_info= new partition_info();
          if (!lex->part_info)
          {
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            mem_alloc_error(sizeof(partition_info));
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            YYABORT;
          }
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          lex->no_write_to_binlog= $3;
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        }
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        reorg_parts_rule
        ;

reorg_parts_rule:
        /* empty */
        {
	  Lex->alter_info.flags|= ALTER_TABLE_REORG;
        }
        |
        alt_part_name_list
        {
	  Lex->alter_info.flags|= ALTER_REORGANIZE_PARTITION;
        }
        INTO '(' part_def_list ')'
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        {
          LEX *lex= Lex;
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          lex->part_info->no_parts= lex->part_info->partitions.elements;
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        }
        ;

alt_part_name_list:
        alt_part_name_item {}
        | alt_part_name_list ',' alt_part_name_item {}
        ;

alt_part_name_item:
        ident
        {
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          if (Lex->alter_info.partition_names.push_back($1.str))
          {
            mem_alloc_error(1);
            YYABORT;
          }
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        }
        ;

/*
  End of management of partition commands
*/

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alter_list:
        alter_list_item
	| alter_list ',' alter_list_item
        ;
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add_column:
4985
	ADD opt_column
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	{
	  LEX *lex=Lex;
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	  lex->change=0;
	  lex->alter_info.flags|= ALTER_ADD_COLUMN;
4990
	};
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alter_list_item:
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	add_column column_def opt_place { }
	| ADD key_def
	  {
	    Lex->alter_info.flags|= ALTER_ADD_INDEX;
4997
	  }
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	| add_column '(' field_list ')'
          {
	    Lex->alter_info.flags|= ALTER_ADD_COLUMN | ALTER_ADD_INDEX;
          }
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	| CHANGE opt_column field_ident
	  {
	     LEX *lex=Lex;
5005
	     lex->change= $3.str;
5006
	     lex->alter_info.flags|= ALTER_CHANGE_COLUMN;
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	  }
5008
          field_spec opt_place
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        | MODIFY_SYM opt_column field_ident
          {
            LEX *lex=Lex;
5012
            lex->length=lex->dec=0; lex->type=0;
5013
            lex->default_value= lex->on_update_value= 0;
5014
            lex->comment=null_lex_str;
5015
	    lex->charset= NULL;
5016
	    lex->alter_info.flags|= ALTER_CHANGE_COLUMN;
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          }
          type opt_attribute
          {
            LEX *lex=Lex;
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            if (add_field_to_list(lex->thd,$3.str,
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                                  (enum enum_field_types) $5,
                                  lex->length,lex->dec,lex->type,
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                                  lex->default_value, lex->on_update_value,
5025
                                  &lex->comment,
5026
				  $3.str, &lex->interval_list, lex->charset,
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				  lex->uint_geom_type))
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	       YYABORT;
          }
          opt_place
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	| DROP opt_column field_ident opt_restrict
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	  {
	    LEX *lex=Lex;
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	    lex->alter_info.drop_list.push_back(new Alter_drop(Alter_drop::COLUMN,
5035
                                                               $3.str));
5036
	    lex->alter_info.flags|= ALTER_DROP_COLUMN;
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	  }
5038 5039
	| DROP FOREIGN KEY_SYM opt_ident
          {
5040
	    Lex->alter_info.flags|= ALTER_DROP_INDEX | ALTER_FOREIGN_KEY;
5041
          }
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	| DROP PRIMARY_SYM KEY_SYM
	  {
	    LEX *lex=Lex;
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	    lex->alter_info.drop_list.push_back(new Alter_drop(Alter_drop::KEY,
				               primary_key_name));
	    lex->alter_info.flags|= ALTER_DROP_INDEX;
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	  }
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	| DROP key_or_index field_ident
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	  {
	    LEX *lex=Lex;
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	    lex->alter_info.drop_list.push_back(new Alter_drop(Alter_drop::KEY,
					                       $3.str));
	    lex->alter_info.flags|= ALTER_DROP_INDEX;
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	  }
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	| DISABLE_SYM KEYS
          {
	    LEX *lex=Lex;
            lex->alter_info.keys_onoff= DISABLE;
	    lex->alter_info.flags|= ALTER_KEYS_ONOFF;
          }
	| ENABLE_SYM KEYS
          {
	    LEX *lex=Lex;
            lex->alter_info.keys_onoff= ENABLE;
	    lex->alter_info.flags|= ALTER_KEYS_ONOFF;
          }
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	| ALTER opt_column field_ident SET DEFAULT signed_literal
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	  {
	    LEX *lex=Lex;
5071
	    lex->alter_info.alter_list.push_back(new Alter_column($3.str,$6));
5072
	    lex->alter_info.flags|= ALTER_CHANGE_COLUMN_DEFAULT;
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	  }
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	| ALTER opt_column field_ident DROP DEFAULT
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	  {
	    LEX *lex=Lex;
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	    lex->alter_info.alter_list.push_back(new Alter_column($3.str,
                                                                  (Item*) 0));
5079
	    lex->alter_info.flags|= ALTER_CHANGE_COLUMN_DEFAULT;
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	  }
5081
	| RENAME opt_to table_ident
5082
	  {
5083
	    LEX *lex=Lex;
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            THD *thd= lex->thd;
5085
	    lex->select_lex.db=$3->db.str;
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            if (lex->select_lex.db == NULL &&
                thd->copy_db_to(&lex->select_lex.db, NULL))
            {
              YYABORT;
            }
5091 5092 5093
            if (check_table_name($3->table.str,$3->table.length) ||
                $3->db.str && check_db_name($3->db.str))
            {
5094
              my_error(ER_WRONG_TABLE_NAME, MYF(0), $3->table.str);
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              YYABORT;
            }
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	    lex->name= $3->table.str;
5098
	    lex->alter_info.flags|= ALTER_RENAME;
5099
	  }
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	| CONVERT_SYM TO_SYM charset charset_name_or_default opt_collate
	  {
	    if (!$4)
	    {
	      THD *thd= YYTHD;
	      $4= thd->variables.collation_database;
	    }
	    $5= $5 ? $5 : $4;
	    if (!my_charset_same($4,$5))
	    {
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	      my_error(ER_COLLATION_CHARSET_MISMATCH, MYF(0),
                       $5->name, $4->csname);
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	      YYABORT;
	    }
5114
	    LEX *lex= Lex;
5115
	    lex->create_info.table_charset=
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	      lex->create_info.default_table_charset= $5;
	    lex->create_info.used_fields|= (HA_CREATE_USED_CHARSET |
					    HA_CREATE_USED_DEFAULT_CHARSET);
5119
	    lex->alter_info.flags|= ALTER_CONVERT;
5120
	  }
5121
        | create_table_options_space_separated
5122 5123
	  {
	    LEX *lex=Lex;
5124
	    lex->alter_info.flags|= ALTER_OPTIONS;
5125
	  }
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	| FORCE_SYM
	  {
	    Lex->alter_info.flags|= ALTER_FORCE;
	   }
5130
	| order_clause
5131 5132
	  {
	    LEX *lex=Lex;
5133
	    lex->alter_info.flags|= ALTER_ORDER;
5134
	  };
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opt_column:
	/* empty */	{}
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	| COLUMN_SYM	{};
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opt_ignore:
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	/* empty */	{ Lex->ignore= 0;}
	| IGNORE_SYM	{ Lex->ignore= 1;}
	;
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opt_restrict:
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	/* empty */	{ Lex->drop_mode= DROP_DEFAULT; }
	| RESTRICT	{ Lex->drop_mode= DROP_RESTRICT; }
	| CASCADE	{ Lex->drop_mode= DROP_CASCADE; }
	;
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opt_place:
	/* empty */	{}
	| AFTER_SYM ident { store_position_for_column($2.str); }
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	| FIRST_SYM	  { store_position_for_column(first_keyword); };
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opt_to:
	/* empty */	{}
	| TO_SYM	{}
5159
	| EQ		{}
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	| AS		{};
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/*
5163
  SLAVE START and SLAVE STOP are deprecated. We keep them for compatibility.
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*/

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slave:
5167
	  START_SYM SLAVE slave_thread_opts
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          {
	    LEX *lex=Lex;
            lex->sql_command = SQLCOM_SLAVE_START;
	    lex->type = 0;
	    /* We'll use mi structure for UNTIL options */
	    bzero((char*) &lex->mi, sizeof(lex->mi));
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            /* If you change this code don't forget to update SLAVE START too */
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          }
          slave_until
          {}
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        | STOP_SYM SLAVE slave_thread_opts
          {
	    LEX *lex=Lex;
            lex->sql_command = SQLCOM_SLAVE_STOP;
	    lex->type = 0;
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            /* If you change this code don't forget to update SLAVE STOP too */
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          }
5185 5186 5187 5188 5189
	| SLAVE START_SYM slave_thread_opts
         {
	   LEX *lex=Lex;
           lex->sql_command = SQLCOM_SLAVE_START;
	   lex->type = 0;
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	    /* We'll use mi structure for UNTIL options */
	    bzero((char*) &lex->mi, sizeof(lex->mi));
          }
          slave_until
          {}
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	| SLAVE STOP_SYM slave_thread_opts
         {
	   LEX *lex=Lex;
           lex->sql_command = SQLCOM_SLAVE_STOP;
	   lex->type = 0;
         }
        ;

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start:
5205 5206
	START_SYM TRANSACTION_SYM start_transaction_opts
        {
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          LEX *lex= Lex;
          lex->sql_command= SQLCOM_BEGIN;
          lex->start_transaction_opt= $3;
5210
        }
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	;

5213 5214 5215 5216 5217 5218
start_transaction_opts:
        /*empty*/ { $$ = 0; }
        | WITH CONSISTENT_SYM SNAPSHOT_SYM
        {
           $$= MYSQL_START_TRANS_OPT_WITH_CONS_SNAPSHOT;
        }
5219
        ;
5220

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slave_thread_opts:
5222 5223
	{ Lex->slave_thd_opt= 0; }
	slave_thread_opt_list
5224
        {}
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	;
5226 5227

slave_thread_opt_list:
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	slave_thread_opt
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	| slave_thread_opt_list ',' slave_thread_opt
	;
5231 5232

slave_thread_opt:
5233
	/*empty*/	{}
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	| SQL_THREAD	{ Lex->slave_thd_opt|=SLAVE_SQL; }
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	| RELAY_THREAD 	{ Lex->slave_thd_opt|=SLAVE_IO; }
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	;
5237

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slave_until:
	/*empty*/	{}
	| UNTIL_SYM slave_until_opts
          {
            LEX *lex=Lex;
            if ((lex->mi.log_file_name || lex->mi.pos) &&
                (lex->mi.relay_log_name || lex->mi.relay_log_pos) ||
                !((lex->mi.log_file_name && lex->mi.pos) ||
                  (lex->mi.relay_log_name && lex->mi.relay_log_pos)))
            {
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               my_message(ER_BAD_SLAVE_UNTIL_COND,
                          ER(ER_BAD_SLAVE_UNTIL_COND), MYF(0));
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               YYABORT;
            }

          }
	;

slave_until_opts:
       master_file_def
       | slave_until_opts ',' master_file_def ;


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restore:
	RESTORE_SYM table_or_tables
	{
	   Lex->sql_command = SQLCOM_RESTORE_TABLE;
5265 5266
           WARN_DEPRECATED(yythd, "5.2", "RESTORE TABLE",
                           "MySQL Administrator (mysqldump, mysql)");
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	}
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	table_list FROM TEXT_STRING_sys
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        {
	  Lex->backup_dir = $6.str;
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        };
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backup:
	BACKUP_SYM table_or_tables
	{
	   Lex->sql_command = SQLCOM_BACKUP_TABLE;
5277 5278
           WARN_DEPRECATED(yythd, "5.2", "BACKUP TABLE",
                           "MySQL Administrator (mysqldump, mysql)");
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	}
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	table_list TO_SYM TEXT_STRING_sys
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        {
	  Lex->backup_dir = $6.str;
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        };
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5285 5286 5287 5288 5289 5290
checksum:
        CHECKSUM_SYM table_or_tables
	{
	   LEX *lex=Lex;
	   lex->sql_command = SQLCOM_CHECKSUM;
	}
5291 5292
	table_list opt_checksum_type
        {}
5293 5294
	;

5295 5296 5297 5298 5299 5300
opt_checksum_type:
        /* nothing */  { Lex->check_opt.flags= 0; }
	| QUICK        { Lex->check_opt.flags= T_QUICK; }
	| EXTENDED_SYM { Lex->check_opt.flags= T_EXTEND; }
        ;

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repair:
5302
	REPAIR opt_no_write_to_binlog table_or_tables
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	{
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	   LEX *lex=Lex;
	   lex->sql_command = SQLCOM_REPAIR;
5306
           lex->no_write_to_binlog= $2;
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	   lex->check_opt.init();
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	}
5309 5310 5311
	table_list opt_mi_repair_type
	{}
	;
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opt_mi_repair_type:
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	/* empty */ { Lex->check_opt.flags = T_MEDIUM; }
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	| mi_repair_types {};
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mi_repair_types:
	mi_repair_type {}
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	| mi_repair_type mi_repair_types {};
5320

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mi_repair_type:
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	QUICK          { Lex->check_opt.flags|= T_QUICK; }
5323
	| EXTENDED_SYM { Lex->check_opt.flags|= T_EXTEND; }
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        | USE_FRM      { Lex->check_opt.sql_flags|= TT_USEFRM; };
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analyze:
5327
	ANALYZE_SYM opt_no_write_to_binlog table_or_tables
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	{
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	   LEX *lex=Lex;
	   lex->sql_command = SQLCOM_ANALYZE;
5331
           lex->no_write_to_binlog= $2;
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	   lex->check_opt.init();
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	}
5334 5335 5336
	table_list opt_mi_check_type
	{}
	;
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5338 5339 5340 5341 5342 5343
binlog_base64_event:
        BINLOG_SYM TEXT_STRING_sys
        {
           Lex->sql_command = SQLCOM_BINLOG_BASE64_EVENT;
           Lex->comment= $2;
        }
5344
        ;
5345

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check:
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5347
	CHECK_SYM table_or_tables
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	{
5349 5350 5351 5352 5353 5354 5355 5356 5357
	  LEX *lex=Lex;

	  if (lex->sphead)
	  {
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "CHECK");
	    YYABORT;
	  }
	  lex->sql_command = SQLCOM_CHECK;
	  lex->check_opt.init();
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	}
5359 5360 5361
	table_list opt_mi_check_type
	{}
	;
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opt_mi_check_type:
	/* empty */ { Lex->check_opt.flags = T_MEDIUM; }
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	| mi_check_types {};
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mi_check_types:
	mi_check_type {}
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	| mi_check_type mi_check_types {};
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mi_check_type:
	QUICK      { Lex->check_opt.flags|= T_QUICK; }
	| FAST_SYM { Lex->check_opt.flags|= T_FAST; }
	| MEDIUM_SYM { Lex->check_opt.flags|= T_MEDIUM; }
	| EXTENDED_SYM { Lex->check_opt.flags|= T_EXTEND; }
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	| CHANGED  { Lex->check_opt.flags|= T_CHECK_ONLY_CHANGED; }
        | FOR_SYM UPGRADE_SYM { Lex->check_opt.sql_flags|= TT_FOR_UPGRADE; };
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optimize:
5380
	OPTIMIZE opt_no_write_to_binlog table_or_tables
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	{
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	   LEX *lex=Lex;
	   lex->sql_command = SQLCOM_OPTIMIZE;
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           lex->no_write_to_binlog= $2;
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	   lex->check_opt.init();
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	}
5387 5388 5389
	table_list opt_mi_check_type
	{}
	;
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5391 5392 5393
opt_no_write_to_binlog:
	/* empty */        { $$= 0; }
	| NO_WRITE_TO_BINLOG  { $$= 1; }
5394
	| LOCAL_SYM  { $$= 1; }
5395 5396
	;

5397 5398 5399
rename:
	RENAME table_or_tables
	{
5400
          Lex->sql_command= SQLCOM_RENAME_TABLE;
5401
	}
5402 5403
	table_to_table_list
	{}
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	| RENAME DATABASE
          {
            Lex->db_list.empty();
            Lex->sql_command= SQLCOM_RENAME_DB;
          }
          db_to_db
          {}
5411 5412 5413 5414
	| RENAME USER clear_privileges rename_list
          {
	    Lex->sql_command = SQLCOM_RENAME_USER;
          }
5415
	;
5416

5417 5418 5419 5420 5421 5422 5423 5424 5425 5426 5427 5428 5429
rename_list:
        user TO_SYM user
        {
          if (Lex->users_list.push_back($1) || Lex->users_list.push_back($3))
            YYABORT;
        }
        | rename_list ',' user TO_SYM user
          {
            if (Lex->users_list.push_back($3) || Lex->users_list.push_back($5))
              YYABORT;
          }
        ;

5430 5431
table_to_table_list:
	table_to_table
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	| table_to_table_list ',' table_to_table;
5433 5434 5435

table_to_table:
	table_ident TO_SYM table_ident
5436
	{
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	  LEX *lex=Lex;
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	  SELECT_LEX *sl= lex->current_select;
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	  if (!sl->add_table_to_list(lex->thd, $1,NULL,TL_OPTION_UPDATING,
				     TL_IGNORE) ||
	      !sl->add_table_to_list(lex->thd, $3,NULL,TL_OPTION_UPDATING,
				     TL_IGNORE))
5443
	    YYABORT;
5444
	};
5445

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db_to_db:
	ident TO_SYM ident
	{
	  LEX *lex=Lex;
          if (Lex->db_list.push_back((LEX_STRING*)
                                     sql_memdup(&$1, sizeof(LEX_STRING))) ||
              Lex->db_list.push_back((LEX_STRING*)
                                     sql_memdup(&$3, sizeof(LEX_STRING))))
              YYABORT;
	};

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keycache:
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5458
        CACHE_SYM INDEX_SYM keycache_list IN_SYM key_cache_name
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        {
          LEX *lex=Lex;
5461
          lex->sql_command= SQLCOM_ASSIGN_TO_KEYCACHE;
5462
	  lex->ident= $5;
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        }
        ;

keycache_list:
        assign_to_keycache
        | keycache_list ',' assign_to_keycache;

assign_to_keycache:
5471
        table_ident cache_keys_spec
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        {
          LEX *lex=Lex;
          SELECT_LEX *sel= &lex->select_lex;
          if (!sel->add_table_to_list(lex->thd, $1, NULL, 0,
                                      TL_READ,
                                      sel->get_use_index(),
5478
                                      (List<String> *)0))
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            YYABORT;
        }
        ;

5483 5484 5485
key_cache_name:
	ident	   { $$= $1; }
	| DEFAULT  { $$ = default_key_cache_base; }
5486
	;
5487

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preload:
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	LOAD INDEX_SYM INTO CACHE_SYM
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	{
	  LEX *lex=Lex;
	  lex->sql_command=SQLCOM_PRELOAD_KEYS;
	}
	preload_list
	{}
	;

preload_list:
	preload_keys
	| preload_list ',' preload_keys;

preload_keys:
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	table_ident cache_keys_spec opt_ignore_leaves
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	{
	  LEX *lex=Lex;
	  SELECT_LEX *sel= &lex->select_lex;
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	  if (!sel->add_table_to_list(lex->thd, $1, NULL, $3,
                                      TL_READ,
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                                      sel->get_use_index(),
                                      (List<String> *)0))
            YYABORT;
	}
	;

5515
cache_keys_spec:
5516
        { Select->interval_list.empty(); }
5517 5518 5519 5520 5521 5522 5523
        cache_key_list_or_empty
        {
          LEX *lex=Lex;
          SELECT_LEX *sel= &lex->select_lex;
          sel->use_index= sel->interval_list;
        }
        ;
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cache_key_list_or_empty:
5526
	/* empty */	{ Lex->select_lex.use_index_ptr= 0; }
5527
	| opt_key_or_index '(' key_usage_list2 ')'
5528 5529 5530 5531
	  {
            SELECT_LEX *sel= &Lex->select_lex;
	    sel->use_index_ptr= &sel->use_index;
	  }
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	;

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opt_ignore_leaves:
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	/* empty */
	{ $$= 0; }
	| IGNORE_SYM LEAVES { $$= TL_OPTION_IGNORE_LEAVES; }
	;

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/*
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  Select : retrieve data from table
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*/


select:
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	select_init
	{
	  LEX *lex= Lex;
	  lex->sql_command= SQLCOM_SELECT;
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	}
	;
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5553
/* Need select_init2 for subselects. */
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select_init:
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	SELECT_SYM select_init2
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	|
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	'(' select_paren ')' union_opt;

select_paren:
	SELECT_SYM select_part2
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	  {
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	    LEX *lex= Lex;
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            SELECT_LEX * sel= lex->current_select;
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	    if (sel->set_braces(1))
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	    {
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	      yyerror(ER(ER_SYNTAX_ERROR));
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	      YYABORT;
	    }
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            if (sel->linkage == UNION_TYPE &&
                !sel->master_unit()->first_select()->braces &&
                sel->master_unit()->first_select()->linkage ==
                UNION_TYPE)
            {
              yyerror(ER(ER_SYNTAX_ERROR));
              YYABORT;
            }
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            /* select in braces, can't contain global parameters */
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	    if (sel->master_unit()->fake_select_lex)
              sel->master_unit()->global_parameters=
                 sel->master_unit()->fake_select_lex;
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          }
	| '(' select_paren ')';
5583

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select_init2:
	select_part2
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        {
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	  LEX *lex= Lex;
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          SELECT_LEX * sel= lex->current_select;
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          if (lex->current_select->set_braces(0))
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	  {
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	    yyerror(ER(ER_SYNTAX_ERROR));
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	    YYABORT;
	  }
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	  if (sel->linkage == UNION_TYPE &&
	      sel->master_unit()->first_select()->braces)
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	  {
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	    yyerror(ER(ER_SYNTAX_ERROR));
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	    YYABORT;
	  }
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	}
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	union_clause
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	;

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select_part2:
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	{
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	  LEX *lex= Lex;
	  SELECT_LEX *sel= lex->current_select;
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	  if (sel->linkage != UNION_TYPE)
	    mysql_init_select(lex);
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	  lex->current_select->parsing_place= SELECT_LIST;
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	}
	select_options select_item_list
	{
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	  Select->parsing_place= NO_MATTER;
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	}
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	select_into select_lock_type;
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select_into:
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	opt_order_clause opt_limit_clause {}
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        | into
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	| select_from
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	| into select_from
	| select_from into;
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select_from:
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	  FROM join_table_list where_clause group_clause having_clause
	       opt_order_clause opt_limit_clause procedure_clause
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        | FROM DUAL_SYM where_clause opt_limit_clause
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          /* oracle compatibility: oracle always requires FROM clause,
             and DUAL is system table without fields.
             Is "SELECT 1 FROM DUAL" any better than "SELECT 1" ?
          Hmmm :) */
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	;
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select_options:
	/* empty*/
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	| select_option_list
	  {
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	    if (Select->options & SELECT_DISTINCT && Select->options & SELECT_ALL)
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	    {
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	      my_error(ER_WRONG_USAGE, MYF(0), "ALL", "DISTINCT");
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              YYABORT;
	    }
          }
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	  ;
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select_option_list:
	select_option_list select_option
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	| select_option;
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select_option:
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	STRAIGHT_JOIN { Select->options|= SELECT_STRAIGHT_JOIN; }
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	| HIGH_PRIORITY
	  {
	    if (check_simple_select())
	      YYABORT;
	    Lex->lock_option= TL_READ_HIGH_PRIORITY;
	  }
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	| DISTINCT         { Select->options|= SELECT_DISTINCT; }
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	| SQL_SMALL_RESULT { Select->options|= SELECT_SMALL_RESULT; }
	| SQL_BIG_RESULT { Select->options|= SELECT_BIG_RESULT; }
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	| SQL_BUFFER_RESULT
	  {
	    if (check_simple_select())
	      YYABORT;
	    Select->options|= OPTION_BUFFER_RESULT;
	  }
	| SQL_CALC_FOUND_ROWS
	  {
	    if (check_simple_select())
	      YYABORT;
	    Select->options|= OPTION_FOUND_ROWS;
	  }
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	| SQL_NO_CACHE_SYM
          {
            Lex->safe_to_cache_query=0;
	    Lex->select_lex.options&= ~OPTION_TO_QUERY_CACHE;
            Lex->select_lex.sql_cache= SELECT_LEX::SQL_NO_CACHE;
          }
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	| SQL_CACHE_SYM
	  {
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            /* Honor this flag only if SQL_NO_CACHE wasn't specified. */
            if (Lex->select_lex.sql_cache != SELECT_LEX::SQL_NO_CACHE)
            {
              Lex->safe_to_cache_query=1;
	      Lex->select_lex.options|= OPTION_TO_QUERY_CACHE;
              Lex->select_lex.sql_cache= SELECT_LEX::SQL_CACHE;
            }
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	  }
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	| ALL		    { Select->options|= SELECT_ALL; }
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	;
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select_lock_type:
	/* empty */
	| FOR_SYM UPDATE_SYM
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	  {
	    LEX *lex=Lex;
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	    lex->current_select->set_lock_for_tables(TL_WRITE);
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	    lex->safe_to_cache_query=0;
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	  }
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	| LOCK_SYM IN_SYM SHARE_SYM MODE_SYM
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	  {
	    LEX *lex=Lex;
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	    lex->current_select->
	      set_lock_for_tables(TL_READ_WITH_SHARED_LOCKS);
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	    lex->safe_to_cache_query=0;
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	  }
	;
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select_item_list:
	  select_item_list ',' select_item
	| select_item
	| '*'
	  {
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	    THD *thd= YYTHD;
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	    if (add_item_to_list(thd,
                                 new Item_field(&thd->lex->current_select->
                                                context,
                                                NULL, NULL, "*")))
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	      YYABORT;
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	    (thd->lex->current_select->with_wild)++;
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	  };
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select_item:
	  remember_name select_item2 remember_end select_alias
	  {
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	    if (add_item_to_list(YYTHD, $2))
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	      YYABORT;
	    if ($4.str)
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            {
              $2->is_autogenerated_name= FALSE;
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	      $2->set_name($4.str, $4.length, system_charset_info);
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            }
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	    else if (!$2->name) {
	      char *str = $1;
	      if (str[-1] == '`')
	        str--;
	      $2->set_name(str,(uint) ($3 - str), YYTHD->charset());
	    }
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	  };
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remember_name:
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	{ $$=(char*) Lex->tok_start; };
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remember_end:
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	{ $$=(char*) Lex->tok_end; };
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select_item2:
	table_wild	{ $$=$1; } /* table.* */
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	| expr		{ $$=$1; };
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select_alias:
5754
	/* empty */		{ $$=null_lex_str;}
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	| AS ident		{ $$=$2; }
	| AS TEXT_STRING_sys	{ $$=$2; }
	| ident			{ $$=$1; }
	| TEXT_STRING_sys	{ $$=$1; }
	;
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optional_braces:
	/* empty */ {}
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	| '(' ')' {};
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/* all possible expressions */
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expr:	
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	  bool_term { Select->expr_list.push_front(new List<Item>); }
          bool_or_expr
          {
            List<Item> *list= Select->expr_list.pop();
            if (list->elements)
            {
              list->push_front($1);
              $$= new Item_cond_or(*list);
              /* optimize construction of logical OR to reduce
                 amount of objects for complex expressions */
            }
            else
              $$= $1;
            delete list;
          }
	;

bool_or_expr:
	/* empty */
        | bool_or_expr or bool_term
          { Select->expr_list.head()->push_back($3); }
        ;
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bool_term:
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	bool_term XOR bool_term { $$= new Item_cond_xor($1,$3); }
	| bool_factor { Select->expr_list.push_front(new List<Item>); }
          bool_and_expr
          {
            List<Item> *list= Select->expr_list.pop();
            if (list->elements)
            {
              list->push_front($1);
              $$= new Item_cond_and(*list);
              /* optimize construction of logical AND to reduce
                 amount of objects for complex expressions */
            }
            else
              $$= $1;
            delete list;
          }
	;

bool_and_expr:
	/* empty */
        | bool_and_expr and bool_factor
          { Select->expr_list.head()->push_back($3); }
        ;
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bool_factor:
	NOT_SYM bool_factor	{ $$= negate_expression(YYTHD, $2); }
	| bool_test ;

bool_test:
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	bool_pri IS TRUE_SYM	{ $$= is_truth_value(YYTHD, $1,1,0); }
	| bool_pri IS not TRUE_SYM { $$= is_truth_value(YYTHD, $1,0,0); }
	| bool_pri IS FALSE_SYM	{ $$= is_truth_value(YYTHD, $1,0,1); }
	| bool_pri IS not FALSE_SYM { $$= is_truth_value(YYTHD, $1,1,1); }
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	| bool_pri IS UNKNOWN_SYM { $$= new Item_func_isnull($1); }
	| bool_pri IS not UNKNOWN_SYM { $$= new Item_func_isnotnull($1); }
	| bool_pri ;

bool_pri:
	bool_pri IS NULL_SYM	{ $$= new Item_func_isnull($1); }
	| bool_pri IS not NULL_SYM { $$= new Item_func_isnotnull($1); }
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	| bool_pri EQUAL_SYM predicate	{ $$= new Item_func_equal($1,$3); }
	| bool_pri comp_op predicate %prec EQ
	  { $$= (*$2)(0)->create($1,$3); }
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	| bool_pri comp_op all_or_any '(' subselect ')' %prec EQ
	  { $$= all_any_subquery_creator($1, $2, $3, $5); }
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	| predicate ;

predicate:
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        bit_expr IN_SYM '(' subselect ')'
	  { $$= new Item_in_subselect($1, $4); }
	| bit_expr not IN_SYM '(' subselect ')'
          { $$= negate_expression(YYTHD, new Item_in_subselect($1, $5)); }
        | bit_expr IN_SYM '(' expr ')'
          {
              $$= new Item_func_eq($1, $4);
          }
	| bit_expr IN_SYM '(' expr ',' expr_list ')'
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	  { 
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              $6->push_front($4);
              $6->push_front($1);
              $$= new Item_func_in(*$6);
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          }
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        | bit_expr not IN_SYM '(' expr ')'
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          {
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              $$= new Item_func_ne($1, $5);
          }
	| bit_expr not IN_SYM '(' expr ',' expr_list ')'
          {
              $7->push_front($5);
              $7->push_front($1);
              Item_func_in *item = new Item_func_in(*$7);
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              item->negate();
              $$= item;
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          }
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	| bit_expr BETWEEN_SYM bit_expr AND_SYM predicate
	  { $$= new Item_func_between($1,$3,$5); }
	| bit_expr not BETWEEN_SYM bit_expr AND_SYM predicate
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    {
      Item_func_between *item= new Item_func_between($1,$4,$6);
      item->negate();
      $$= item;
    }
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	| bit_expr SOUNDS_SYM LIKE bit_expr
	  { $$= new Item_func_eq(new Item_func_soundex($1),
				 new Item_func_soundex($4)); }
	| bit_expr LIKE simple_expr opt_escape
5877
          { $$= new Item_func_like($1,$3,$4,Lex->escape_used); }
5878
	| bit_expr not LIKE simple_expr opt_escape
5879
          { $$= new Item_func_not(new Item_func_like($1,$4,$5, Lex->escape_used)); }
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	| bit_expr REGEXP bit_expr	{ $$= new Item_func_regex($1,$3); }
	| bit_expr not REGEXP bit_expr
5882
          { $$= negate_expression(YYTHD, new Item_func_regex($1,$4)); }
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	| bit_expr ;

bit_expr:
	bit_expr '|' bit_term	{ $$= new Item_func_bit_or($1,$3); }
	| bit_term ;

bit_term:
	bit_term '&' bit_factor	{ $$= new Item_func_bit_and($1,$3); }
	| bit_factor ;

bit_factor:
	bit_factor SHIFT_LEFT value_expr
	  { $$= new Item_func_shift_left($1,$3); }
	| bit_factor SHIFT_RIGHT value_expr 
	  { $$= new Item_func_shift_right($1,$3); }
	| value_expr ;

value_expr:
	value_expr '+' term	{ $$= new Item_func_plus($1,$3); }
	| value_expr '-' term	{ $$= new Item_func_minus($1,$3); }
	| value_expr '+' interval_expr interval
	  { $$= new Item_date_add_interval($1,$3,$4,0); }
	| value_expr '-' interval_expr interval
	  { $$= new Item_date_add_interval($1,$3,$4,1); }
	| term ;

term:
	term '*' factor		{ $$= new Item_func_mul($1,$3); }
	| term '/' factor	{ $$= new Item_func_div($1,$3); }
	| term '%' factor	{ $$= new Item_func_mod($1,$3); }
	| term DIV_SYM factor	{ $$= new Item_func_int_div($1,$3); }
	| term MOD_SYM factor	{ $$= new Item_func_mod($1,$3); }
	| factor ;

factor:
        factor '^' simple_expr	{ $$= new Item_func_bit_xor($1,$3); }
	| simple_expr ;

or:	OR_SYM | OR2_SYM;
and:	AND_SYM | AND_AND_SYM;
not:	NOT_SYM | NOT2_SYM;
not2:	'!' | NOT2_SYM;
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comp_op:  EQ		{ $$ = &comp_eq_creator; }
	| GE		{ $$ = &comp_ge_creator; }
	| GT_SYM	{ $$ = &comp_gt_creator; }
	| LE		{ $$ = &comp_le_creator; }
	| LT		{ $$ = &comp_lt_creator; }
	| NE		{ $$ = &comp_ne_creator; }
	;

all_or_any: ALL     { $$ = 1; }
        |   ANY_SYM { $$ = 0; }
        ;

5938
interval_expr:
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         INTERVAL_SYM expr { $$=$2; }
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        ;

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simple_expr:
	simple_ident
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        | function_call_keyword
        | function_call_nonkeyword
        | function_call_generic
        | function_call_conflict
5948
 	| simple_expr COLLATE_SYM ident_or_text %prec NEG
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	  {
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            THD *thd= YYTHD;
            Item *i1= new (thd->mem_root) Item_string($3.str,
                                                      $3.length,
                                                      thd->charset());
	    $$= new (thd->mem_root) Item_func_set_collation($1, i1);
5955
	  }
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	| literal
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	| param_marker
5958
	| variable
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	| sum_expr
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	| simple_expr OR_OR_SYM simple_expr
5961
	  { $$= new (YYTHD->mem_root) Item_func_concat($1, $3); }
5962
	| '+' simple_expr %prec NEG	{ $$= $2; }
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	| '-' simple_expr %prec NEG
          { $$= new (YYTHD->mem_root) Item_func_neg($2); }
	| '~' simple_expr %prec NEG
          { $$= new (YYTHD->mem_root) Item_func_bit_neg($2); }
	| not2 simple_expr %prec NEG
          { $$= negate_expression(YYTHD, $2); }
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	| '(' subselect ')'   
          { 
5971
            $$= new (YYTHD->mem_root) Item_singlerow_subselect($2); 
5972
          }
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	| '(' expr ')'		{ $$= $2; }
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	| '(' expr ',' expr_list ')'
	  {
	    $4->push_front($2);
5977
	    $$= new (YYTHD->mem_root) Item_row(*$4);
5978
	  }
5979
	| ROW_SYM '(' expr ',' expr_list ')'
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	  {
5981
	    $5->push_front($3);
5982
	    $$= new (YYTHD->mem_root) Item_row(*$5);
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	  }
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	| EXISTS '(' subselect ')' 
          {
5986
            $$= new (YYTHD->mem_root) Item_exists_subselect($3); 
5987
          }
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	| '{' ident expr '}'	{ $$= $3; }
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        | MATCH ident_list_arg AGAINST '(' bit_expr fulltext_options ')'
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          {
            $2->push_front($5);
            Item_func_match *i1= new (YYTHD->mem_root) Item_func_match(*$2, $6);
            Select->add_ftfunc_to_list(i1);
            $$= i1;
          }
5996
	| BINARY simple_expr %prec NEG
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	  {
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            $$= create_func_cast(YYTHD, $2, ITEM_CAST_CHAR, -1, 0,
                                 &my_charset_bin);
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	  }
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	| CAST_SYM '(' expr AS cast_type ')'
6002
	  {
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            LEX *lex= Lex;
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	    $$= create_func_cast(YYTHD, $3, $5,
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                                 lex->length ? atoi(lex->length) : -1,
                                 lex->dec ? atoi(lex->dec) : 0,
                                 lex->charset);
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            if (!$$)
              YYABORT;
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	  }
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	| CASE_SYM opt_expr WHEN_SYM when_list opt_else END
6012
	  { $$= new (YYTHD->mem_root) Item_func_case(* $4, $2, $5 ); }
6013
	| CONVERT_SYM '(' expr ',' cast_type ')'
6014
	  {
6015
	    $$= create_func_cast(YYTHD, $3, $5,
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				 Lex->length ? atoi(Lex->length) : -1,
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                                 Lex->dec ? atoi(Lex->dec) : 0,
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				 Lex->charset);
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            if (!$$)
              YYABORT;
6021
	  }
6022
	| CONVERT_SYM '(' expr USING charset_name ')'
6023
	  { $$= new (YYTHD->mem_root) Item_func_conv_charset($3,$5); }
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	| DEFAULT '(' simple_ident ')'
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	  {
	    if ($3->is_splocal())
	    {
	      Item_splocal *il= static_cast<Item_splocal *>($3);

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	      my_error(ER_WRONG_COLUMN_NAME, MYF(0), il->my_name()->str);
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	      YYABORT;
	    }
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	    $$= new (YYTHD->mem_root) Item_default_value(Lex->current_context(),
                                                         $3);
6035
	  }
6036
	| VALUES '(' simple_ident_nospvar ')'
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	  { $$= new (YYTHD->mem_root) Item_insert_value(Lex->current_context(),
                                                        $3); }
	| interval_expr interval '+' expr
	  /* we cannot put interval before - */
	  { $$= new (YYTHD->mem_root) Item_date_add_interval($4,$1,$2,0); }
	| interval_expr
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	  {
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            if ($1->type() != Item::ROW_ITEM)
            {
              yyerror(ER(ER_SYNTAX_ERROR));
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              YYABORT;
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            }
            $$= new (YYTHD->mem_root) Item_func_interval((Item_row *)$1);
          }
	| UNIQUE_USERS '(' text_literal ',' NUM ',' NUM ',' expr_list ')'
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	  {
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            $$= new Item_func_unique_users($3,atoi($5.str),atoi($7.str), * $9);
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	  }
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        ;

/*
  Function call syntax using official SQL 2003 keywords.
  Because the function name is an official token,
  a dedicated grammar rule is needed in the parser.
  There is no potential for conflicts
*/
function_call_keyword:
	  CHAR_SYM '(' expr_list ')'
	  { $$= new (YYTHD->mem_root) Item_func_char(*$3); }
	| CHAR_SYM '(' expr_list USING charset_name ')'
	  { $$= new (YYTHD->mem_root) Item_func_char(*$3, $5); }
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	| CURRENT_USER optional_braces
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          {
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            $$= new (YYTHD->mem_root) Item_func_current_user(Lex->current_context());
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            Lex->safe_to_cache_query= 0;
          }
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	| DATE_SYM '(' expr ')'
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	  { $$= new (YYTHD->mem_root) Item_date_typecast($3); }
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	| DAY_SYM '(' expr ')'
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	  { $$= new (YYTHD->mem_root) Item_func_dayofmonth($3); }
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	| HOUR_SYM '(' expr ')'
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	  { $$= new (YYTHD->mem_root) Item_func_hour($3); }
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	| INSERT '(' expr ',' expr ',' expr ',' expr ')'
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	  { $$= new (YYTHD->mem_root) Item_func_insert($3,$5,$7,$9); }
	| LEFT '(' expr ',' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_left($3,$5); }
	| MINUTE_SYM '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_minute($3); }
	| MONTH_SYM '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_month($3); }
	| RIGHT '(' expr ',' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_right($3,$5); }
	| SECOND_SYM '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_second($3); }
	| TIME_SYM '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_time_typecast($3); }
	| TIMESTAMP '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_datetime_typecast($3); }
	| TIMESTAMP '(' expr ',' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_add_time($3, $5, 1, 0); }
	| TRIM '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_trim($3); }
	| TRIM '(' LEADING expr FROM expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_ltrim($6,$4); }
	| TRIM '(' TRAILING expr FROM expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_rtrim($6,$4); }
	| TRIM '(' BOTH expr FROM expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_trim($6,$4); }
	| TRIM '(' LEADING FROM expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_ltrim($5); }
	| TRIM '(' TRAILING FROM expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_rtrim($5); }
	| TRIM '(' BOTH FROM expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_trim($5); }
	| TRIM '(' expr FROM expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_trim($5,$3); }
	| USER '(' ')'
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	  {
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            $$= new (YYTHD->mem_root) Item_func_user();
            Lex->safe_to_cache_query=0;
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          }
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	| YEAR_SYM '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_year($3); }
        ;

/*
  Function calls using non reserved keywords, with special syntaxic forms.
  Dedicated grammar rules are needed because of the syntax,
  but also have the potential to cause incompatibilities with other
  parts of the language.
  MAINTAINER:
  The only reasons a function should be added here are:
  - for compatibility reasons with another SQL syntax (CURDATE),
  - for typing reasons (GET_FORMAT)
  Any other 'Syntaxic sugar' enhancements should be *STRONGLY*
  discouraged.
*/
function_call_nonkeyword:
	  ADDDATE_SYM '(' expr ',' expr ')'
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	  {
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            $$= new (YYTHD->mem_root) Item_date_add_interval($3, $5,
                                                             INTERVAL_DAY, 0);
          }
	| ADDDATE_SYM '(' expr ',' INTERVAL_SYM expr interval ')'
	  { $$= new (YYTHD->mem_root) Item_date_add_interval($3, $6, $7, 0); }
	| CURDATE optional_braces
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	  {
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            $$= new (YYTHD->mem_root) Item_func_curdate_local();
            Lex->safe_to_cache_query=0;
          }
	| CURTIME optional_braces
	  {
            $$= new (YYTHD->mem_root) Item_func_curtime_local();
            Lex->safe_to_cache_query=0;
          }
	| CURTIME '(' expr ')'
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	  {
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	    $$= new (YYTHD->mem_root) Item_func_curtime_local($3);
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	    Lex->safe_to_cache_query=0;
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	  }
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	| DATE_ADD_INTERVAL '(' expr ',' interval_expr interval ')'
	  { $$= new (YYTHD->mem_root) Item_date_add_interval($3,$5,$6,0); }
	| DATE_SUB_INTERVAL '(' expr ',' interval_expr interval ')'
	  { $$= new (YYTHD->mem_root) Item_date_add_interval($3,$5,$6,1); }
	| EXTRACT_SYM '(' interval FROM expr ')'
	  { $$=new (YYTHD->mem_root) Item_extract( $3, $5); }
	| GET_FORMAT '(' date_time_type  ',' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_get_format($3, $5); }
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	| NOW_SYM optional_braces
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	  {
            $$= new (YYTHD->mem_root) Item_func_now_local();
            Lex->safe_to_cache_query=0;
          }
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	| NOW_SYM '(' expr ')'
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	  {
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            $$= new (YYTHD->mem_root) Item_func_now_local($3);
            Lex->safe_to_cache_query=0;
          }
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	| POSITION_SYM '(' bit_expr IN_SYM expr ')'
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	  { $$ = new (YYTHD->mem_root) Item_func_locate($5,$3); }
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	| SUBDATE_SYM '(' expr ',' expr ')'
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	  {
            $$= new (YYTHD->mem_root) Item_date_add_interval($3, $5,
                                                             INTERVAL_DAY, 1);
          }
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	| SUBDATE_SYM '(' expr ',' INTERVAL_SYM expr interval ')'
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	  { $$= new (YYTHD->mem_root) Item_date_add_interval($3, $6, $7, 1); }
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	| SUBSTRING '(' expr ',' expr ',' expr ')'
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	  { $$= new (YYTHD->mem_root) Item_func_substr($3,$5,$7); }
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	| SUBSTRING '(' expr ',' expr ')'
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	  { $$= new (YYTHD->mem_root) Item_func_substr($3,$5); }
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	| SUBSTRING '(' expr FROM expr FOR_SYM expr ')'
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	  { $$= new (YYTHD->mem_root) Item_func_substr($3,$5,$7); }
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	| SUBSTRING '(' expr FROM expr ')'
6191
	  { $$= new (YYTHD->mem_root) Item_func_substr($3,$5); }
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	| SYSDATE optional_braces
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          {
            if (global_system_variables.sysdate_is_now == 0)
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              $$= new (YYTHD->mem_root) Item_func_sysdate_local();
            else
              $$= new (YYTHD->mem_root) Item_func_now_local();
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            Lex->safe_to_cache_query=0;
          }
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	| SYSDATE '(' expr ')'
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          {
            if (global_system_variables.sysdate_is_now == 0)
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              $$= new (YYTHD->mem_root) Item_func_sysdate_local($3);
            else
              $$= new (YYTHD->mem_root) Item_func_now_local($3);
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            Lex->safe_to_cache_query=0;
          }
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	| TIMESTAMP_ADD '(' interval_time_st ',' expr ',' expr ')'
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	  { $$= new (YYTHD->mem_root) Item_date_add_interval($7,$5,$3,0); }
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	| TIMESTAMP_DIFF '(' interval_time_st ',' expr ',' expr ')'
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	  { $$= new (YYTHD->mem_root) Item_func_timestamp_diff($5,$7,$3); }
	| UTC_DATE_SYM optional_braces
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	  {
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            $$= new (YYTHD->mem_root) Item_func_curdate_utc();
            Lex->safe_to_cache_query=0;
          }
	| UTC_TIME_SYM optional_braces
	  {
            $$= new (YYTHD->mem_root) Item_func_curtime_utc();
            Lex->safe_to_cache_query=0;
          }
	| UTC_TIMESTAMP_SYM optional_braces
	  {
            $$= new (YYTHD->mem_root) Item_func_now_utc();
            Lex->safe_to_cache_query=0;
          }
        ;
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/*
  Functions calls using a non reserved keywork, and using a regular syntax.
  Because the non reserved keyword is used in another part of the grammar,
  a dedicated rule is needed here.
*/
function_call_conflict:
	  ASCII_SYM '(' expr ')'
          { $$= new (YYTHD->mem_root) Item_func_ascii($3); }
	| CHARSET '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_charset($3); }
	| COALESCE '(' expr_list ')'
	  { $$= new (YYTHD->mem_root) Item_func_coalesce(* $3); }
	| COLLATION_SYM '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_collation($3); }
	| DATABASE '(' ')'
	  {
	    $$= new (YYTHD->mem_root) Item_func_database();
            Lex->safe_to_cache_query=0;
	  }
	| IF '(' expr ',' expr ',' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_if($3,$5,$7); }
	| MICROSECOND_SYM '(' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_microsecond($3); }
	| MOD_SYM '(' expr ',' expr ')'
	  { $$ = new (YYTHD->mem_root) Item_func_mod( $3, $5); }
	| OLD_PASSWORD '(' expr ')'
	  { $$=  new (YYTHD->mem_root) Item_func_old_password($3); }
	| PASSWORD '(' expr ')'
	  {
            THD *thd= YYTHD;
            Item* i1;
            if (thd->variables.old_passwords)
              i1= new (thd->mem_root) Item_func_old_password($3);
            else
              i1= new (thd->mem_root) Item_func_password($3);
            $$= i1;
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	  }
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	| QUARTER_SYM '(' expr ')'
	  { $$ = new (YYTHD->mem_root) Item_func_quarter($3); }
	| REPEAT_SYM '(' expr ',' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_repeat($3,$5); }
	| REPLACE '(' expr ',' expr ',' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_replace($3,$5,$7); }
	| TRUNCATE_SYM '(' expr ',' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_round($3,$5,1); }
	| WEEK_SYM '(' expr ')'
	  {
            THD *thd= YYTHD;
            Item *i1= new (thd->mem_root) Item_int((char*) "0",
                                           thd->variables.default_week_format,
                                                   1);

            $$= new (thd->mem_root) Item_func_week($3, i1);
          }
	| WEEK_SYM '(' expr ',' expr ')'
	  { $$= new (YYTHD->mem_root) Item_func_week($3,$5); }
        | geometry_function
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          {
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#ifdef HAVE_SPATIAL
            $$= $1;
#else
            my_error(ER_FEATURE_DISABLED, MYF(0),
                     sym_group_geom.name, sym_group_geom.needed_define);
            YYABORT;
#endif
          }
        ;

geometry_function:
	  CONTAINS_SYM '(' expr ',' expr ')'
	  {
            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_rel($3, $5,
                                               Item_func::SP_CONTAINS_FUNC));
          }
	| GEOMETRYCOLLECTION '(' expr_list ')'
	  {
            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_geometrycollection,
                           Geometry::wkb_point));
          }
	| LINESTRING '(' expr_list ')'
	  {
            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_linestring,
                           Geometry::wkb_point));
          }
 	| MULTILINESTRING '(' expr_list ')'
	  {
            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_multilinestring,
                           Geometry::wkb_linestring));
          }
	| MULTIPOINT '(' expr_list ')'
	  {
            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_multipoint,
                           Geometry::wkb_point));
          }
 	| MULTIPOLYGON '(' expr_list ')'
	  {
            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
                           Geometry::wkb_multipolygon,
                           Geometry::wkb_polygon));
          }
	| POINT_SYM '(' expr ',' expr ')'
	  { $$= GEOM_NEW(YYTHD, Item_func_point($3,$5)); }
	| POLYGON '(' expr_list ')'
	  {
            $$= GEOM_NEW(YYTHD,
                         Item_func_spatial_collection(* $3,
	                   Geometry::wkb_polygon,
                           Geometry::wkb_linestring));
          }
        ;

/*
  Regular function calls.
  The function name is *not* a token, and therefore is guaranteed to not
  introduce side effects to the language in general.
  MAINTAINER:
  All the new functions implemented for new features should fit into
  this category. The place to implement the function itself is
  in sql/item_create.cc
*/
function_call_generic:
        IDENT_sys '('
        {
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#ifdef HAVE_DLOPEN
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          udf_func *udf= 0;
          if (using_udf_functions &&
              (udf= find_udf($1.str, $1.length)) &&
              udf->type == UDFTYPE_AGGREGATE)
          {
            LEX *lex= Lex;
            if (lex->current_select->inc_in_sum_expr())
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            {
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              yyerror(ER(ER_SYNTAX_ERROR));
              YYABORT;
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            }
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          }
          /* Temporary placing the result of find_udf in $3 */
          $<udf>$= udf;
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#endif
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        }
        expr_list_opt ')'
        {
          THD *thd= YYTHD;
          LEX *lex= Lex;
          Create_func *builder;
          Item *item= NULL;

          /*
            Implementation note:
            names are resolved with the following order:
            - MySQL native functions,
            - User Defined Functions,
            - Stored Functions (assuming the current <use> database)

            This will be revised with WL#2128 (SQL PATH)
          */
          builder= find_native_function_builder(thd, $1);
          if (builder)
          {
            item= builder->create(thd, $1, $4);
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          }
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          else
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          {
#ifdef HAVE_DLOPEN
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            /* Retrieving the result of find_udf */
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            udf_func *udf= $<udf>3;
6405

6406
            if (udf)
6407
            {
6408
              if (udf->type == UDFTYPE_AGGREGATE)
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              {
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                Select->in_sum_expr--;
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              }
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              item= Create_udf_func::s_singleton.create(thd, udf, $4);
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            }
            else
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#endif
6417
            {
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              builder= find_qualified_function_builder(thd);
              DBUG_ASSERT(builder);
              item= builder->create(thd, $1, $4);
            }
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          }
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          if (! ($$= item))
          {
            YYABORT;
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          }
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        }
	| ident '.' ident '(' udf_expr_list ')'
	{
          THD *thd= YYTHD;
          Create_qfunc *builder;
          Item *item= NULL;
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          /*
            The following in practice calls:
            <code>Create_sp_func::create()</code>
            and builds a stored function.

            However, it's important to maintain the interface between the
            parser and the implementation in item_create.cc clean,
            since this will change with WL#2128 (SQL PATH):
            - INFORMATION_SCHEMA.version() is the SQL 99 syntax for the native
            funtion version(),
            - MySQL.version() is the SQL 2003 syntax for the native function
            version() (a vendor can specify any schema).
          */

          builder= find_qualified_function_builder(thd);
          DBUG_ASSERT(builder);
          item= builder->create(thd, $1, $3, $5);

          if (! ($$= item))
          {
            YYABORT;
          }
	}
        ;
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fulltext_options:
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          opt_natural_language_mode opt_query_expansion
          { $$= $1 | $2; }
        | IN_SYM BOOLEAN_SYM MODE_SYM
          { $$= FT_BOOL; }
        ;

opt_natural_language_mode:
        /* nothing */                           { $$= FT_NL;  }
        | IN_SYM NATURAL LANGUAGE_SYM MODE_SYM  { $$= FT_NL; }
        ;

opt_query_expansion:
        /* nothing */                           { $$= 0;         }
        | WITH QUERY_SYM EXPANSION_SYM          { $$= FT_EXPAND; }
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        ;

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udf_expr_list:
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	/* empty */	 { $$= NULL; }
	| udf_expr_list2 { $$= $1;}
	;

udf_expr_list2:
	{ Select->expr_list.push_front(new List<Item>); }
	udf_expr_list3
	{ $$= Select->expr_list.pop(); }
	;

udf_expr_list3:
	udf_expr 
	  {
	    Select->expr_list.head()->push_back($1);
	  }
	| udf_expr_list3 ',' udf_expr 
	  {
	    Select->expr_list.head()->push_back($3);
	  }
	;

udf_expr:
	remember_name expr remember_end select_alias
	{
	  if ($4.str)
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          {
            $2->is_autogenerated_name= FALSE;
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	    $2->set_name($4.str, $4.length, system_charset_info);
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          }
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	  else
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	    $2->set_name($1, (uint) ($3 - $1), YYTHD->charset());
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	  $$= $2;
	}
	;
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sum_expr:
	AVG_SYM '(' in_sum_expr ')'
	  { $$=new Item_sum_avg($3); }
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	| AVG_SYM '(' DISTINCT in_sum_expr ')'
	  { $$=new Item_sum_avg_distinct($4); }
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	| BIT_AND  '(' in_sum_expr ')'
	  { $$=new Item_sum_and($3); }
	| BIT_OR  '(' in_sum_expr ')'
	  { $$=new Item_sum_or($3); }
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	| BIT_XOR  '(' in_sum_expr ')'
	  { $$=new Item_sum_xor($3); }
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	| COUNT_SYM '(' opt_all '*' ')'
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	  { $$=new Item_sum_count(new Item_int((int32) 0L,1)); }
	| COUNT_SYM '(' in_sum_expr ')'
	  { $$=new Item_sum_count($3); }
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	| COUNT_SYM '(' DISTINCT
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	  { Select->in_sum_expr++; }
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	   expr_list
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	  { Select->in_sum_expr--; }
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	  ')'
	  { $$=new Item_sum_count_distinct(* $5); }
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	| GROUP_UNIQUE_USERS '(' text_literal ',' NUM ',' NUM ',' in_sum_expr ')'
	  { $$= new Item_sum_unique_users($3,atoi($5.str),atoi($7.str),$9); }
	| MIN_SYM '(' in_sum_expr ')'
	  { $$=new Item_sum_min($3); }
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/*
   According to ANSI SQL, DISTINCT is allowed and has
   no sence inside MIN and MAX grouping functions; so MIN|MAX(DISTINCT ...)
   is processed like an ordinary MIN | MAX()
 */
	| MIN_SYM '(' DISTINCT in_sum_expr ')'
	  { $$=new Item_sum_min($4); }
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	| MAX_SYM '(' in_sum_expr ')'
	  { $$=new Item_sum_max($3); }
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	| MAX_SYM '(' DISTINCT in_sum_expr ')'
	  { $$=new Item_sum_max($4); }
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	| STD_SYM '(' in_sum_expr ')'
6550
	  { $$=new Item_sum_std($3, 0); }
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	| VARIANCE_SYM '(' in_sum_expr ')'
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	  { $$=new Item_sum_variance($3, 0); }
	| STDDEV_SAMP_SYM '(' in_sum_expr ')'
	  { $$=new Item_sum_std($3, 1); }
	| VAR_SAMP_SYM '(' in_sum_expr ')'
	  { $$=new Item_sum_variance($3, 1); }
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	| SUM_SYM '(' in_sum_expr ')'
6558
	  { $$=new Item_sum_sum($3); }
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	| SUM_SYM '(' DISTINCT in_sum_expr ')'
	  { $$=new Item_sum_sum_distinct($4); }
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	| GROUP_CONCAT_SYM '(' opt_distinct
	  { Select->in_sum_expr++; }
	  expr_list opt_gorder_clause
	  opt_gconcat_separator
	 ')'
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	  {
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            SELECT_LEX *sel= Select;
	    sel->in_sum_expr--;
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	    $$=new Item_func_group_concat(Lex->current_context(), $3, $5,
6570
                                          sel->gorder_list, $7);
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	    $5->empty();
6572 6573
	  };

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variable:
          '@'
          {
            if (! Lex->parsing_options.allows_variable)
            {
              my_error(ER_VIEW_SELECT_VARIABLE, MYF(0));
              YYABORT;
            }
          }
          variable_aux
          {
            $$= $3;
          }
          ;

variable_aux:
          ident_or_text SET_VAR expr
          {
            $$= new Item_func_set_user_var($1, $3);
            LEX *lex= Lex;
            lex->uncacheable(UNCACHEABLE_RAND);
          }
        | ident_or_text
          {
            $$= new Item_func_get_user_var($1);
            LEX *lex= Lex;
            lex->uncacheable(UNCACHEABLE_RAND);
          }
        | '@' opt_var_ident_type ident_or_text opt_component
          {
            if ($3.str && $4.str && check_reserved_words(&$3))
            {
              yyerror(ER(ER_SYNTAX_ERROR));
              YYABORT;
            }
            if (!($$= get_system_var(YYTHD, $2, $3, $4)))
              YYABORT;
          }
        ;

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opt_distinct:
    /* empty */ { $$ = 0; }
    |DISTINCT   { $$ = 1; };

opt_gconcat_separator:
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    /* empty */        { $$ = new (YYTHD->mem_root) String(",",1,default_charset_info); }
6620
    |SEPARATOR_SYM text_string  { $$ = $2; };
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6622 6623

opt_gorder_clause:
6624 6625
	  /* empty */
	  {
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            Select->gorder_list = NULL;
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	  }
	| order_clause
          {
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            SELECT_LEX *select= Select;
            select->gorder_list=
	      (SQL_LIST*) sql_memdup((char*) &select->order_list,
6633
				     sizeof(st_sql_list));
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	    select->order_list.empty();
6635
	  };
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in_sum_expr:
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	opt_all
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	{
	  LEX *lex= Lex;
	  if (lex->current_select->inc_in_sum_expr())
	  {
6644
	    yyerror(ER(ER_SYNTAX_ERROR));
6645
	    YYABORT;
6646 6647
	  }
	}
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	expr
	{
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	  Select->in_sum_expr--;
6651
	  $$= $3;
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	};
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cast_type:
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        BINARY opt_len		{ $$=ITEM_CAST_CHAR; Lex->charset= &my_charset_bin; Lex->dec= 0; }
        | CHAR_SYM opt_len opt_binary	{ $$=ITEM_CAST_CHAR; Lex->dec= 0; }
6657
	| NCHAR_SYM opt_len	{ $$=ITEM_CAST_CHAR; Lex->charset= national_charset_info; Lex->dec=0; }
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        | SIGNED_SYM		{ $$=ITEM_CAST_SIGNED_INT; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | SIGNED_SYM INT_SYM	{ $$=ITEM_CAST_SIGNED_INT; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | UNSIGNED		{ $$=ITEM_CAST_UNSIGNED_INT; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | UNSIGNED INT_SYM	{ $$=ITEM_CAST_UNSIGNED_INT; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | DATE_SYM		{ $$=ITEM_CAST_DATE; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | TIME_SYM		{ $$=ITEM_CAST_TIME; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | DATETIME		{ $$=ITEM_CAST_DATETIME; Lex->charset= NULL; Lex->dec=Lex->length= (char*)0; }
        | DECIMAL_SYM float_options { $$=ITEM_CAST_DECIMAL; Lex->charset= NULL; }
6666 6667
	;

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expr_list_opt:
        /* empty */
          { $$ = NULL; }
        | expr_list
          { $$ = $1;}
        ;

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expr_list:
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	{ Select->expr_list.push_front(new List<Item>); }
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	expr_list2
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	{ $$= Select->expr_list.pop(); };
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expr_list2:
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	expr { Select->expr_list.head()->push_back($1); }
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	| expr_list2 ',' expr { Select->expr_list.head()->push_back($3); };
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ident_list_arg:
          ident_list          { $$= $1; }
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        | '(' ident_list ')'  { $$= $2; };
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ident_list:
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        { Select->expr_list.push_front(new List<Item>); }
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        ident_list2
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        { $$= Select->expr_list.pop(); };
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ident_list2:
6694
        simple_ident { Select->expr_list.head()->push_back($1); }
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        | ident_list2 ',' simple_ident { Select->expr_list.head()->push_back($3); };
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opt_expr:
	/* empty */      { $$= NULL; }
6699
	| expr           { $$= $1; };
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opt_else:
	/* empty */    { $$= NULL; }
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	| ELSE expr    { $$= $2; };
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when_list:
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        { Select->when_list.push_front(new List<Item>); }
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	when_list2
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	{ $$= Select->when_list.pop(); };
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when_list2:
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	expr THEN_SYM expr
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	  {
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	    SELECT_LEX *sel=Select;
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	    sel->when_list.head()->push_back($1);
	    sel->when_list.head()->push_back($3);
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	}
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	| when_list2 WHEN_SYM expr THEN_SYM expr
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	  {
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	    SELECT_LEX *sel=Select;
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	    sel->when_list.head()->push_back($3);
	    sel->when_list.head()->push_back($5);
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	  };
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/* Warning - may return NULL in case of incomplete SELECT */
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table_ref:
        table_factor            { $$=$1; }
6727
        | join_table
6728
          {
6729 6730 6731
	    LEX *lex= Lex;
            if (!($$= lex->current_select->nest_last_join(lex->thd)))
              YYABORT;
6732
          }
6733 6734
        ;

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join_table_list:
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	derived_table_list		{ YYERROR_UNLESS($$=$1); }
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	;
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/* Warning - may return NULL in case of incomplete SELECT */
derived_table_list:
6741
        table_ref { $$=$1; }
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        | derived_table_list ',' table_ref
          {
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            YYERROR_UNLESS($1 && ($$=$3));
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          }
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        ;

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/*
  Notice that JOIN is a left-associative operation, and it must be parsed
  as such, that is, the parser must process first the left join operand
  then the right one. Such order of processing ensures that the parser
  produces correct join trees which is essential for semantic analysis
  and subsequent optimization phases.
*/
6755
join_table:
6756
/* INNER JOIN variants */
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        /*
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          Use %prec to evaluate production 'table_ref' before 'normal_join'
          so that [INNER | CROSS] JOIN is properly nested as other
          left-associative joins.
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        */
        table_ref %prec TABLE_REF_PRIORITY normal_join table_ref
6763
          { YYERROR_UNLESS($1 && ($$=$3)); }
6764
	| table_ref STRAIGHT_JOIN table_factor
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	  { YYERROR_UNLESS($1 && ($$=$3)); $3->straight=1; }
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	| table_ref normal_join table_ref
          ON
          {
6769
            YYERROR_UNLESS($1 && $3);
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            /* Change the current name resolution context to a local context. */
6771
            if (push_new_name_resolution_context(YYTHD, $1, $3))
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              YYABORT;
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            Select->parsing_place= IN_ON;
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          }
          expr
	  {
            add_join_on($3,$6);
            Lex->pop_context();
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            Select->parsing_place= NO_MATTER;
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          }
        | table_ref STRAIGHT_JOIN table_factor
          ON
          {
6784
            YYERROR_UNLESS($1 && $3);
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            /* Change the current name resolution context to a local context. */
6786
            if (push_new_name_resolution_context(YYTHD, $1, $3))
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              YYABORT;
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            Select->parsing_place= IN_ON;
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          }
          expr
          {
            $3->straight=1;
            add_join_on($3,$6);
            Lex->pop_context();
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            Select->parsing_place= NO_MATTER;
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          }
6797
	| table_ref normal_join table_ref
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	  USING
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	  {
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	    SELECT_LEX *sel= Select;
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            YYERROR_UNLESS($1 && $3);
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	  }
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	  '(' using_list ')'
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          { add_join_natural($1,$3,$7); $$=$3; }
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	| table_ref NATURAL JOIN_SYM table_factor
	  {
            YYERROR_UNLESS($1 && ($$=$4));
            add_join_natural($1,$4,NULL);
          }

/* LEFT JOIN variants */
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	| table_ref LEFT opt_outer JOIN_SYM table_ref
          ON
          {
6815
            YYERROR_UNLESS($1 && $5);
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            /* Change the current name resolution context to a local context. */
6817
            if (push_new_name_resolution_context(YYTHD, $1, $5))
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              YYABORT;
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            Select->parsing_place= IN_ON;
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          }
          expr
	  {
            add_join_on($5,$8);
            Lex->pop_context();
            $5->outer_join|=JOIN_TYPE_LEFT;
            $$=$5;
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            Select->parsing_place= NO_MATTER;
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          }
6829
	| table_ref LEFT opt_outer JOIN_SYM table_factor
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	  {
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	    SELECT_LEX *sel= Select;
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            YYERROR_UNLESS($1 && $5);
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	  }
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	  USING '(' using_list ')'
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          { add_join_natural($1,$5,$9); $5->outer_join|=JOIN_TYPE_LEFT; $$=$5; }
6836
	| table_ref NATURAL LEFT opt_outer JOIN_SYM table_factor
6837
	  {
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            YYERROR_UNLESS($1 && $6);
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 	    add_join_natural($1,$6,NULL);
6840
	    $6->outer_join|=JOIN_TYPE_LEFT;
6841 6842
	    $$=$6;
	  }
6843 6844

/* RIGHT JOIN variants */
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	| table_ref RIGHT opt_outer JOIN_SYM table_ref
          ON
          {
6848
            YYERROR_UNLESS($1 && $5);
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            /* Change the current name resolution context to a local context. */
6850
            if (push_new_name_resolution_context(YYTHD, $1, $5))
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              YYABORT;
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            Select->parsing_place= IN_ON;
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          }
          expr
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          {
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	    LEX *lex= Lex;
            if (!($$= lex->current_select->convert_right_join()))
              YYABORT;
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            add_join_on($$, $8);
            Lex->pop_context();
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            Select->parsing_place= NO_MATTER;
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          }
	| table_ref RIGHT opt_outer JOIN_SYM table_factor
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	  {
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	    SELECT_LEX *sel= Select;
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            YYERROR_UNLESS($1 && $5);
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	  }
6868
	  USING '(' using_list ')'
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          {
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	    LEX *lex= Lex;
            if (!($$= lex->current_select->convert_right_join()))
              YYABORT;
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            add_join_natural($$,$5,$9);
6874 6875
          }
	| table_ref NATURAL RIGHT opt_outer JOIN_SYM table_factor
6876
	  {
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            YYERROR_UNLESS($1 && $6);
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	    add_join_natural($6,$1,NULL);
6879 6880 6881
	    LEX *lex= Lex;
            if (!($$= lex->current_select->convert_right_join()))
              YYABORT;
6882
	  };
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normal_join:
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	JOIN_SYM		{}
	| INNER_SYM JOIN_SYM	{}
	| CROSS JOIN_SYM	{}
	;
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/* Warning - may return NULL in case of incomplete SELECT */
6891
table_factor:
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	{
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	  SELECT_LEX *sel= Select;
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	  sel->use_index_ptr=sel->ignore_index_ptr=0;
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	  sel->table_join_options= 0;
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	}
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        table_ident opt_table_alias opt_key_definition
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	{
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	  LEX *lex= Lex;
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	  SELECT_LEX *sel= lex->current_select;
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	  if (!($$= sel->add_table_to_list(lex->thd, $2, $3,
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					   sel->get_table_join_options(),
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					   lex->lock_option,
6904 6905
					   sel->get_use_index(),
					   sel->get_ignore_index())))
6906
	    YYABORT;
6907
          sel->add_joined_table($$);
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	}
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	| '{' ident table_ref LEFT OUTER JOIN_SYM table_ref
          ON
          {
            /* Change the current name resolution context to a local context. */
6913
            if (push_new_name_resolution_context(YYTHD, $3, $7))
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              YYABORT;
6915

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          }
          expr '}'
	  {
6919
	    LEX *lex= Lex;
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            YYERROR_UNLESS($3 && $7);
            add_join_on($7,$10);
            Lex->pop_context();
            $7->outer_join|=JOIN_TYPE_LEFT;
            $$=$7;
6925 6926
            if (!($$= lex->current_select->nest_last_join(lex->thd)))
              YYABORT;
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          }
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	| select_derived_init get_select_lex select_derived2
6929
          {
6930
            LEX *lex= Lex;
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            SELECT_LEX *sel= lex->current_select;
            if ($1)
            {
	      if (sel->set_braces(1))
	      {
	        yyerror(ER(ER_SYNTAX_ERROR));
	        YYABORT;
	      }
              /* select in braces, can't contain global parameters */
	      if (sel->master_unit()->fake_select_lex)
                sel->master_unit()->global_parameters=
                   sel->master_unit()->fake_select_lex;
            }
            if ($2->init_nested_join(lex->thd))
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              YYABORT;
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            $$= 0;
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            /* incomplete derived tables return NULL, we must be
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               nested in select_derived rule to be here. */
6949
          }
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	| '(' get_select_lex select_derived union_opt ')' opt_table_alias
	{
          /* Use $2 instead of Lex->current_select as derived table will
             alter value of Lex->current_select. */

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          if (!($3 || $6) && $2->embedding &&
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              !$2->embedding->nested_join->join_list.elements)
6957
          {
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            /* we have a derived table ($3 == NULL) but no alias,
               Since we are nested in further parentheses so we
               can pass NULL to the outer level parentheses
               Permits parsing of "((((select ...))) as xyz)" */
            $$= 0;
6963
          }
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          else
          if (!$3)
          {
            /* Handle case of derived table, alias may be NULL if there
               are no outer parentheses, add_table_to_list() will throw
               error in this case */
	    LEX *lex=Lex;
            SELECT_LEX *sel= lex->current_select;
	    SELECT_LEX_UNIT *unit= sel->master_unit();
	    lex->current_select= sel= unit->outer_select();
	    if (!($$= sel->
                  add_table_to_list(lex->thd, new Table_ident(unit), $6, 0,
				    TL_READ,(List<String> *)0,
	                            (List<String> *)0)))
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	      YYABORT;
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            sel->add_joined_table($$);
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            lex->pop_context();
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          }
	  else
          if ($4 || $6)
	  {
            /* simple nested joins cannot have aliases or unions */
            yyerror(ER(ER_SYNTAX_ERROR));
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	    YYABORT;
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	  }
          else
            $$= $3;
	}
        ;
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/* handle contents of parentheses in join expression */
6996
select_derived:
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	  get_select_lex
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	  {
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            LEX *lex= Lex;
            if ($1->init_nested_join(lex->thd))
              YYABORT;
          }
          derived_table_list
          {
            LEX *lex= Lex;
            /* for normal joins, $3 != NULL and end_nested_join() != NULL,
               for derived tables, both must equal NULL */
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            if (!($$= $1->end_nested_join(lex->thd)) && $3)
              YYABORT;
            if (!$3 && $$)
            {
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	      yyerror(ER(ER_SYNTAX_ERROR));
	      YYABORT;
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            }
          }
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 	;
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select_derived2:
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        {
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	  LEX *lex= Lex;
7022
	  lex->derived_tables|= DERIVED_SUBQUERY;
7023
          if (!lex->expr_allows_subselect)
7024 7025
	  {
	    yyerror(ER(ER_SYNTAX_ERROR));
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	    YYABORT;
	  }
7028
	  if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE ||
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              mysql_new_select(lex, 1))
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	    YYABORT;
	  mysql_init_select(lex);
7032
	  lex->current_select->linkage= DERIVED_TABLE_TYPE;
7033
	  lex->current_select->parsing_place= SELECT_LIST;
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	}
        select_options select_item_list
	{
7037
	  Select->parsing_place= NO_MATTER;
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	}
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	opt_select_from
7040
        ;
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get_select_lex:
	/* Empty */ { $$= Select; }
        ;

select_derived_init:
          SELECT_SYM
          {
            LEX *lex= Lex;
7050 7051 7052 7053 7054 7055 7056

            if (! lex->parsing_options.allows_derived)
            {
              my_error(ER_VIEW_SELECT_DERIVED, MYF(0));
              YYABORT;
            }

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            SELECT_LEX *sel= lex->current_select;
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            TABLE_LIST *embedding;
            if (!sel->embedding || sel->end_nested_join(lex->thd))
	    {
              /* we are not in parentheses */
              yyerror(ER(ER_SYNTAX_ERROR));
	      YYABORT;
	    }
            embedding= Select->embedding;
            $$= embedding &&
                !embedding->nested_join->join_list.elements;
            /* return true if we are deeply nested */
          }
        ;

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opt_outer:
	/* empty */	{}
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	| OUTER		{};
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opt_key_definition:
	/* empty */	{}
	| USE_SYM    key_usage_list
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          {
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	    SELECT_LEX *sel= Select;
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	    sel->use_index= *$2;
	    sel->use_index_ptr= &sel->use_index;
	  }
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	| FORCE_SYM key_usage_list
          {
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	    SELECT_LEX *sel= Select;
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	    sel->use_index= *$2;
	    sel->use_index_ptr= &sel->use_index;
	    sel->table_join_options|= TL_OPTION_FORCE_INDEX;
	  }
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	| IGNORE_SYM key_usage_list
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	  {
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	    SELECT_LEX *sel= Select;
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	    sel->ignore_index= *$2;
	    sel->ignore_index_ptr= &sel->ignore_index;
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	  };
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key_usage_list:
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	key_or_index { Select->interval_list.empty(); }
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        '(' key_list_or_empty ')'
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        { $$= &Select->interval_list; }
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	;

key_list_or_empty:
	/* empty */ 		{}
	| key_usage_list2	{}
	;
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key_usage_list2:
	key_usage_list2 ',' ident
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        { Select->
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	    interval_list.push_back(new (YYTHD->mem_root) String((const char*) $3.str, $3.length,
7113
				    system_charset_info)); }
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	| ident
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        { Select->
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	    interval_list.push_back(new (YYTHD->mem_root) String((const char*) $1.str, $1.length,
7117
				    system_charset_info)); }
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	| PRIMARY_SYM
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        { Select->
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	    interval_list.push_back(new (YYTHD->mem_root) String("PRIMARY", 7,
7121
				    system_charset_info)); };
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using_list:
	ident
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	  {
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            if (!($$= new List<String>))
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	      YYABORT;
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            $$->push_back(new (YYTHD->mem_root)
                              String((const char *) $1.str, $1.length,
                                      system_charset_info));
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	  }
	| using_list ',' ident
	  {
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            $1->push_back(new (YYTHD->mem_root)
                              String((const char *) $3.str, $3.length,
                                      system_charset_info));
            $$= $1;
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	  };
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interval:
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	interval_time_st	{}
	| DAY_HOUR_SYM		{ $$=INTERVAL_DAY_HOUR; }
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	| DAY_MICROSECOND_SYM	{ $$=INTERVAL_DAY_MICROSECOND; }
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	| DAY_MINUTE_SYM	{ $$=INTERVAL_DAY_MINUTE; }
	| DAY_SECOND_SYM	{ $$=INTERVAL_DAY_SECOND; }
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	| HOUR_MICROSECOND_SYM	{ $$=INTERVAL_HOUR_MICROSECOND; }
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	| HOUR_MINUTE_SYM	{ $$=INTERVAL_HOUR_MINUTE; }
	| HOUR_SECOND_SYM	{ $$=INTERVAL_HOUR_SECOND; }
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	| MICROSECOND_SYM	{ $$=INTERVAL_MICROSECOND; }
	| MINUTE_MICROSECOND_SYM	{ $$=INTERVAL_MINUTE_MICROSECOND; }
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	| MINUTE_SECOND_SYM	{ $$=INTERVAL_MINUTE_SECOND; }
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	| SECOND_MICROSECOND_SYM	{ $$=INTERVAL_SECOND_MICROSECOND; }
	| YEAR_MONTH_SYM	{ $$=INTERVAL_YEAR_MONTH; };

interval_time_st:
	DAY_SYM			{ $$=INTERVAL_DAY; }
	| WEEK_SYM		{ $$=INTERVAL_WEEK; }
	| HOUR_SYM		{ $$=INTERVAL_HOUR; }
	| FRAC_SECOND_SYM	{ $$=INTERVAL_MICROSECOND; }
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	| MINUTE_SYM		{ $$=INTERVAL_MINUTE; }
	| MONTH_SYM		{ $$=INTERVAL_MONTH; }
7162
	| QUARTER_SYM		{ $$=INTERVAL_QUARTER; }
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	| SECOND_SYM		{ $$=INTERVAL_SECOND; }
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	| YEAR_SYM		{ $$=INTERVAL_YEAR; }
        ;
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7167
date_time_type:
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          DATE_SYM              {$$=MYSQL_TIMESTAMP_DATE;}
        | TIME_SYM              {$$=MYSQL_TIMESTAMP_TIME;}
        | DATETIME              {$$=MYSQL_TIMESTAMP_DATETIME;}
        | TIMESTAMP             {$$=MYSQL_TIMESTAMP_DATETIME;}
        ;
7173

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table_alias:
	/* empty */
	| AS
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	| EQ;
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opt_table_alias:
	/* empty */		{ $$=0; }
	| table_alias ident
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	  { $$= (LEX_STRING*) sql_memdup(&$2,sizeof(LEX_STRING)); };
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opt_all:
	/* empty */
	| ALL
	;
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where_clause:
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	/* empty */  { Select->where= 0; }
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	| WHERE
          {
            Select->parsing_place= IN_WHERE;
          }
          expr
7196
	  {
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            SELECT_LEX *select= Select;
	    select->where= $3;
            select->parsing_place= NO_MATTER;
	    if ($3)
	      $3->top_level_item();
7202
	  }
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 	;
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having_clause:
	/* empty */
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	| HAVING
	  {
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	    Select->parsing_place= IN_HAVING;
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          }
	  expr
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	  {
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	    SELECT_LEX *sel= Select;
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	    sel->having= $3;
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	    sel->parsing_place= NO_MATTER;
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	    if ($3)
	      $3->top_level_item();
	  }
7219
	;
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opt_escape:
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	ESCAPE_SYM simple_expr 
          {
            Lex->escape_used= TRUE;
            $$= $2;
          }
7227
	| /* empty */
7228
          {
7229
            Lex->escape_used= FALSE;
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            $$= ((YYTHD->variables.sql_mode & MODE_NO_BACKSLASH_ESCAPES) ?
		 new Item_string("", 0, &my_charset_latin1) :
                 new Item_string("\\", 1, &my_charset_latin1));
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          }
        ;
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/*
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   group by statement in select
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*/

group_clause:
	/* empty */
7243
	| GROUP BY group_list olap_opt;
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group_list:
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	group_list ',' order_ident order_dir
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	  { if (add_group_to_list(YYTHD, $3,(bool) $4)) YYABORT; }
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	| order_ident order_dir
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	  { if (add_group_to_list(YYTHD, $1,(bool) $2)) YYABORT; };
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olap_opt:
	/* empty */ {}
7253
	| WITH CUBE_SYM
7254
          {
7255
	    LEX *lex=Lex;
7256 7257
	    if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE)
	    {
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	      my_error(ER_WRONG_USAGE, MYF(0), "WITH CUBE",
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		       "global union parameters");
	      YYABORT;
	    }
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	    lex->current_select->olap= CUBE_TYPE;
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	    my_error(ER_NOT_SUPPORTED_YET, MYF(0), "CUBE");
7264
	    YYABORT;	/* To be deleted in 5.1 */
7265
	  }
7266
	| WITH ROLLUP_SYM
7267
          {
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	    LEX *lex= Lex;
	    if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE)
	    {
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	      my_error(ER_WRONG_USAGE, MYF(0), "WITH ROLLUP",
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		       "global union parameters");
	      YYABORT;
	    }
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	    lex->current_select->olap= ROLLUP_TYPE;
7276
	  }
7277
	;
7278

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/*
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   Order by statement in select
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*/

7283
opt_order_clause:
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	/* empty */
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	| order_clause;
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order_clause:
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	ORDER_SYM BY
        {
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	  LEX *lex=Lex;
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          SELECT_LEX *sel= lex->current_select;
          SELECT_LEX_UNIT *unit= sel-> master_unit();
	  if (sel->linkage != GLOBAL_OPTIONS_TYPE &&
	      sel->olap != UNSPECIFIED_OLAP_TYPE)
7295
	  {
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	    my_error(ER_WRONG_USAGE, MYF(0),
                     "CUBE/ROLLUP", "ORDER BY");
7298 7299
	    YYABORT;
	  }
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          if (lex->sql_command != SQLCOM_ALTER_TABLE && !unit->fake_select_lex)
          {
            /*
              A query of the of the form (SELECT ...) ORDER BY order_list is
              executed in the same way as the query
              SELECT ... ORDER BY order_list
              unless the SELECT construct contains ORDER BY or LIMIT clauses.
              Otherwise we create a fake SELECT_LEX if it has not been created
              yet.
            */
            SELECT_LEX *first_sl= unit->first_select();
            if (!first_sl->next_select() &&
                (first_sl->order_list.elements || 
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                 first_sl->select_limit) &&            
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                unit->add_fake_select_lex(lex->thd))
              YYABORT;
          }
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	} order_list;
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order_list:
	order_list ',' order_ident order_dir
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	  { if (add_order_to_list(YYTHD, $3,(bool) $4)) YYABORT; }
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	| order_ident order_dir
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	  { if (add_order_to_list(YYTHD, $1,(bool) $2)) YYABORT; };
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order_dir:
	/* empty */ { $$ =  1; }
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	| ASC  { $$ =1; }
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	| DESC { $$ =0; };
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7331 7332 7333
opt_limit_clause_init:
	/* empty */
	{
7334 7335
	  LEX *lex= Lex;
	  SELECT_LEX *sel= lex->current_select;
7336 7337
          sel->offset_limit= 0;
          sel->select_limit= 0;
7338
	}
7339 7340 7341
	| limit_clause {}
	;

7342 7343 7344 7345 7346
opt_limit_clause:
	/* empty */	{}
	| limit_clause	{}
	;

7347
limit_clause:
7348
	LIMIT limit_options {}
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	;
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limit_options:
7352
	limit_option
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	  {
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            SELECT_LEX *sel= Select;
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            sel->select_limit= $1;
7356
            sel->offset_limit= 0;
7357
	    sel->explicit_limit= 1;
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	  }
7359
	| limit_option ',' limit_option
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	  {
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	    SELECT_LEX *sel= Select;
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	    sel->select_limit= $3;
	    sel->offset_limit= $1;
7364
	    sel->explicit_limit= 1;
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	  }
7366
	| limit_option OFFSET_SYM limit_option
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	  {
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	    SELECT_LEX *sel= Select;
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	    sel->select_limit= $1;
	    sel->offset_limit= $3;
7371
	    sel->explicit_limit= 1;
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	  }
	;
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limit_option:
        param_marker
        | ULONGLONG_NUM { $$= new Item_uint($1.str, $1.length); }
        | LONG_NUM     { $$= new Item_uint($1.str, $1.length); }
        | NUM           { $$= new Item_uint($1.str, $1.length); }
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        ;
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delete_limit_clause:
	/* empty */
	{
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	  LEX *lex=Lex;
7385
	  lex->current_select->select_limit= 0;
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	}
7387
	| LIMIT limit_option
7388 7389
	{
	  SELECT_LEX *sel= Select;
7390
	  sel->select_limit= $2;
7391 7392
	  sel->explicit_limit= 1;
	};
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ulong_num:
          NUM           { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
7396
	| HEX_NUM       { $$= (ulong) strtol($1.str, (char**) 0, 16); }
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	| LONG_NUM      { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
	| ULONGLONG_NUM { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
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        | DECIMAL_NUM   { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
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	| FLOAT_NUM	{ int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
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        ;

real_ulong_num:
          NUM           { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
	| HEX_NUM       { $$= (ulong) strtol($1.str, (char**) 0, 16); }
	| LONG_NUM      { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
	| ULONGLONG_NUM { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
        | dec_num_error { YYABORT; }
        ;
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ulonglong_num:
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	NUM	    { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
	| ULONGLONG_NUM { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
	| LONG_NUM  { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
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        | DECIMAL_NUM  { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
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	| FLOAT_NUM { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
	;
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real_ulonglong_num:
	NUM	    { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
	| ULONGLONG_NUM { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
	| LONG_NUM  { int error; $$= (ulonglong) my_strtoll10($1.str, (char**) 0, &error); }
        | dec_num_error { YYABORT; }
        ;

dec_num_error:
        dec_num
        { yyerror(ER(ER_ONLY_INTEGERS_ALLOWED)); }
        ;

dec_num:
        DECIMAL_NUM
	| FLOAT_NUM
        ;

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procedure_clause:
	/* empty */
	| PROCEDURE ident			/* Procedure name */
	  {
	    LEX *lex=Lex;
7441 7442 7443 7444 7445 7446 7447

            if (! lex->parsing_options.allows_select_procedure)
            {
              my_error(ER_VIEW_SELECT_CLAUSE, MYF(0), "PROCEDURE");
              YYABORT;
            }

7448 7449
	    if (&lex->select_lex != lex->current_select)
	    {
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	      my_error(ER_WRONG_USAGE, MYF(0), "PROCEDURE", "subquery");
7451 7452
	      YYABORT;
	    }
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	    lex->proc_list.elements=0;
	    lex->proc_list.first=0;
	    lex->proc_list.next= (byte**) &lex->proc_list.first;
7456 7457 7458 7459
	    if (add_proc_to_list(lex->thd, new Item_field(&lex->
                                                          current_select->
                                                          context,
                                                          NULL,NULL,$2.str)))
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	      YYABORT;
7461
	    Lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
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	  }
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	  '(' procedure_list ')';
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procedure_list:
	/* empty */ {}
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	| procedure_list2 {};
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procedure_list2:
	procedure_list2 ',' procedure_item
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	| procedure_item;
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procedure_item:
	  remember_name expr
	  {
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	    LEX *lex= Lex;
	    if (add_proc_to_list(lex->thd, $2))
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	      YYABORT;
	    if (!$2->name)
7481 7482
	      $2->set_name($1,(uint) ((char*) lex->tok_end - $1),
                           YYTHD->charset());
7483 7484 7485 7486 7487 7488
	  }
          ;


select_var_list_init:
	   {
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             LEX *lex=Lex;
	     if (!lex->describe && (!(lex->result= new select_dumpvar())))
7491 7492
	        YYABORT;
	   }
7493
	   select_var_list
7494
	   {}
7495
           ;
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select_var_list:
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	   select_var_list ',' select_var_ident
	   | select_var_ident {}
           ;

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select_var_ident:  
	   '@' ident_or_text
           {
             LEX *lex=Lex;
	     if (lex->result) 
	       ((select_dumpvar *)lex->result)->var_list.push_back( new my_var($2,0,0,(enum_field_types)0));
	     else
7509 7510 7511 7512 7513
               /*
                 The parser won't create select_result instance only
	         if it's an EXPLAIN.
               */
               DBUG_ASSERT(lex->describe);
7514 7515
	   }
           | ident_or_text
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           {
7517
             LEX *lex=Lex;
7518
	     sp_variable_t *t;
7519

7520
	     if (!lex->spcont || !(t=lex->spcont->find_variable(&$1)))
7521
	     {
7522
	       my_error(ER_SP_UNDECLARED_VAR, MYF(0), $1.str);
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	       YYABORT;
7524
	     }
7525 7526
	     if (lex->result)
             {
7527 7528 7529
               my_var *var;
	       ((select_dumpvar *)lex->result)->
                 var_list.push_back(var= new my_var($1,1,t->offset,t->type));
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#ifndef DBUG_OFF
7531
	       if (var)
7532
		 var->sp= lex->sphead;
7533
#endif
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             }
	     else
	     {
               /*
                 The parser won't create select_result instance only
	         if it's an EXPLAIN.
               */
               DBUG_ASSERT(lex->describe);
7542
	     }
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	   }
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           ;
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7546
into:
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        INTO
	{
          if (! Lex->parsing_options.allows_select_into)
          {
            my_error(ER_VIEW_SELECT_CLAUSE, MYF(0), "INTO");
            YYABORT;
          }
	}
        into_destination
        ;

into_destination:
        OUTFILE TEXT_STRING_filesystem
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	{
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          LEX *lex= Lex;
7562
          lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
7563
          if (!(lex->exchange= new sql_exchange($2.str, 0)) ||
7564 7565
              !(lex->result= new select_export(lex->exchange)))
            YYABORT;
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	}
	opt_field_term opt_line_term
7568
	| DUMPFILE TEXT_STRING_filesystem
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7569
	{
7570
	  LEX *lex=Lex;
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	  if (!lex->describe)
	  {
7573
	    lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
7574
	    if (!(lex->exchange= new sql_exchange($2.str,1)))
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	      YYABORT;
	    if (!(lex->result= new select_dump(lex->exchange)))
	      YYABORT;
	  }
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	}
7580
        | select_var_list_init
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	{
7582
	  Lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
7583 7584
	}
        ;
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/*
  DO statement
*/
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7590
do:	DO_SYM
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	{
	  LEX *lex=Lex;
	  lex->sql_command = SQLCOM_DO;
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	  mysql_init_select(lex);
	}
	expr_list
	{
	  Lex->insert_list= $3;
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	}
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	;

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/*
7603
  Drop : delete tables or index or user
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*/

drop:
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	DROP opt_temporary table_or_tables if_exists table_list opt_restrict
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	{
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	  LEX *lex=Lex;
	  lex->sql_command = SQLCOM_DROP_TABLE;
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	  lex->drop_temporary= $2;
	  lex->drop_if_exists= $4;
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	}
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	| DROP INDEX_SYM ident ON table_ident {}
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	  {
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	     LEX *lex=Lex;
	     lex->sql_command= SQLCOM_DROP_INDEX;
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	     lex->alter_info.drop_list.empty();
	     lex->alter_info.drop_list.push_back(new Alter_drop(Alter_drop::KEY,
                                                                $3.str));
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	     if (!lex->current_select->add_table_to_list(lex->thd, $5, NULL,
							TL_OPTION_UPDATING))
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	      YYABORT;
	  }
	| DROP DATABASE if_exists ident
	  {
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	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_DROP_DB;
	    lex->drop_if_exists=$3;
	    lex->name=$4.str;
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	 }
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	| DROP FUNCTION_SYM if_exists sp_name
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	  {
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	    LEX *lex=Lex;
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	    if (lex->sphead)
	    {
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	      my_error(ER_SP_NO_DROP_SP, MYF(0), "FUNCTION");
7638 7639
	      YYABORT;
	    }
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	    lex->sql_command = SQLCOM_DROP_FUNCTION;
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	    lex->drop_if_exists= $3;
	    lex->spname= $4;
	  }
	| DROP PROCEDURE if_exists sp_name
	  {
	    LEX *lex=Lex;
	    if (lex->sphead)
	    {
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	      my_error(ER_SP_NO_DROP_SP, MYF(0), "PROCEDURE");
7650 7651 7652 7653 7654
	      YYABORT;
	    }
	    lex->sql_command = SQLCOM_DROP_PROCEDURE;
	    lex->drop_if_exists= $3;
	    lex->spname= $4;
7655
	  }
7656
	| DROP USER clear_privileges user_list
7657
	  {
7658 7659
	    Lex->sql_command = SQLCOM_DROP_USER;
          }
7660 7661
	| DROP VIEW_SYM if_exists table_list opt_restrict
	  {
7662
	    LEX *lex= Lex;
7663 7664 7665
	    lex->sql_command= SQLCOM_DROP_VIEW;
	    lex->drop_if_exists= $3;
	  }
7666 7667
        | DROP EVENT_SYM if_exists sp_name
          {
7668 7669 7670
            Lex->drop_if_exists= $3;
            Lex->spname= $4;
            Lex->sql_command = SQLCOM_DROP_EVENT;
7671
          }
7672
        | DROP TRIGGER_SYM sp_name
7673 7674 7675
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_DROP_TRIGGER;
7676
            lex->spname= $3;
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	  }
        | DROP TABLESPACE tablespace_name opt_ts_engine opt_ts_wait
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= DROP_TABLESPACE;
          }
        | DROP LOGFILE_SYM GROUP logfile_group_name opt_ts_engine opt_ts_wait
          {
            LEX *lex= Lex;
            lex->alter_tablespace_info->ts_cmd_type= DROP_LOGFILE_GROUP;
7687 7688
          }
	;
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table_list:
7691
	table_name
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	| table_list ',' table_name;
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7694
table_name:
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	table_ident
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	{
	  if (!Select->add_table_to_list(YYTHD, $1, NULL, TL_OPTION_UPDATING))
	    YYABORT;
	}
	;
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if_exists:
7703
	/* empty */ { $$= 0; }
7704 7705
	| IF EXISTS { $$= 1; }
	;
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opt_temporary:
	/* empty */ { $$= 0; }
	| TEMPORARY { $$= 1; }
	;
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/*
** Insert : add new data to table
*/

insert:
7716 7717 7718
	INSERT
	{
	  LEX *lex= Lex;
7719 7720
	  lex->sql_command= SQLCOM_INSERT;
	  lex->duplicates= DUP_ERROR; 
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	  mysql_init_select(lex);
7722 7723 7724
	  /* for subselects */
          lex->lock_option= (using_update_log) ? TL_READ_NO_INSERT : TL_READ;
	} insert_lock_option
7725
	opt_ignore insert2
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	{
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	  Select->set_lock_for_tables($3);
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	  Lex->current_select= &Lex->select_lex;
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	}
7730
	insert_field_spec opt_insert_update
7731
	{}
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	;
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replace:
7735 7736
	REPLACE
	{
7737
	  LEX *lex=Lex;
7738 7739
	  lex->sql_command = SQLCOM_REPLACE;
	  lex->duplicates= DUP_REPLACE;
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	  mysql_init_select(lex);
7741
	}
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	replace_lock_option insert2
	{
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	  Select->set_lock_for_tables($3);
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	  Lex->current_select= &Lex->select_lex;
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	}
	insert_field_spec
7748
	{}
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	;
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insert_lock_option:
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	/* empty */
          {
#ifdef HAVE_QUERY_CACHE
            /*
              If it is SP we do not allow insert optimisation whan result of
              insert visible only after the table unlocking but everyone can
              read table.
            */
            $$= (Lex->sphead ? TL_WRITE :TL_WRITE_CONCURRENT_INSERT);
#else
            $$= TL_WRITE_CONCURRENT_INSERT;
#endif
          }
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	| LOW_PRIORITY	{ $$= TL_WRITE_LOW_PRIORITY; }
	| DELAYED_SYM	{ $$= TL_WRITE_DELAYED; }
	| HIGH_PRIORITY { $$= TL_WRITE; }
7768
	;
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replace_lock_option:
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	opt_low_priority { $$= $1; }
	| DELAYED_SYM	 { $$= TL_WRITE_DELAYED; };
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insert2:
	INTO insert_table {}
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	| insert_table {};
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insert_table:
7779
	table_name
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	{
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	  LEX *lex=Lex;
	  lex->field_list.empty();
	  lex->many_values.empty();
	  lex->insert_list=0;
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	};
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insert_field_spec:
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	insert_values {}
	| '(' ')' insert_values {}
	| '(' fields ')' insert_values {}
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	| SET
	  {
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	    LEX *lex=Lex;
	    if (!(lex->insert_list = new List_item) ||
		lex->many_values.push_back(lex->insert_list))
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	      YYABORT;
	   }
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	   ident_eq_list;
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fields:
	fields ',' insert_ident { Lex->field_list.push_back($3); }
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	| insert_ident		{ Lex->field_list.push_back($1); };
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insert_values:
	VALUES	values_list  {}
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	| VALUE_SYM values_list  {}
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	|     create_select     { Select->set_braces(0);} union_clause {}
	| '(' create_select ')' { Select->set_braces(1);} union_opt {}
7809
        ;
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values_list:
	values_list ','  no_braces
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	| no_braces;
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ident_eq_list:
	ident_eq_list ',' ident_eq_value
	|
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	ident_eq_value;
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ident_eq_value:
7821
	simple_ident_nospvar equal expr_or_default
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	 {
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	  LEX *lex=Lex;
	  if (lex->field_list.push_back($1) ||
	      lex->insert_list->push_back($3))
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	    YYABORT;
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	 };
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equal:	EQ		{}
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	| SET_VAR	{}
	;

opt_equal:
	/* empty */	{}
	| equal		{}
	;
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no_braces:
	 '('
	 {
	    if (!(Lex->insert_list = new List_item))
	      YYABORT;
	 }
	 opt_values ')'
	 {
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	  LEX *lex=Lex;
	  if (lex->many_values.push_back(lex->insert_list))
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	    YYABORT;
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	 };
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opt_values:
	/* empty */ {}
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	| values;
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values:
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	values ','  expr_or_default
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	{
	  if (Lex->insert_list->push_back($3))
	    YYABORT;
	}
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	| expr_or_default
	  {
	    if (Lex->insert_list->push_back($1))
	      YYABORT;
	  }
	;

expr_or_default:
7869
	expr	  { $$= $1;}
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	| DEFAULT {$$= new Item_default_value(Lex->current_context()); }
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	;
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opt_insert_update:
        /* empty */
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        | ON DUPLICATE_SYM	{ Lex->duplicates= DUP_UPDATE; }
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          KEY_SYM UPDATE_SYM insert_update_list
7877 7878
        ;

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/* Update rows in a table */

update:
7882 7883
	UPDATE_SYM
	{
7884
	  LEX *lex= Lex;
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7885
	  mysql_init_select(lex);
7886
          lex->sql_command= SQLCOM_UPDATE;
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	  lex->lock_option= TL_UNLOCK; 	/* Will be set later */
7888
	  lex->duplicates= DUP_ERROR; 
7889
        }
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        opt_low_priority opt_ignore join_table_list
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7891
	SET update_list
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7892
	{
7893 7894
	  LEX *lex= Lex;
          if (lex->select_lex.table_list.elements > 1)
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            lex->sql_command= SQLCOM_UPDATE_MULTI;
7896 7897 7898
	  else if (lex->select_lex.get_table_list()->derived)
	  {
	    /* it is single table update and it is update of derived table */
7899 7900
	    my_error(ER_NON_UPDATABLE_TABLE, MYF(0),
                     lex->select_lex.get_table_list()->alias, "UPDATE");
7901 7902
	    YYABORT;
	  }
7903 7904 7905 7906 7907 7908
          /*
            In case of multi-update setting write lock for all tables may
            be too pessimistic. We will decrease lock level if possible in
            mysql_multi_update().
          */
          Select->set_lock_for_tables($3);
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	}
7910
	where_clause opt_order_clause delete_limit_clause {}
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	;
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update_list:
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	update_list ',' update_elem
	| update_elem;

update_elem:
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	simple_ident_nospvar equal expr_or_default
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	{
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	  if (add_item_to_list(YYTHD, $1) || add_value_to_list(YYTHD, $3))
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	    YYABORT;
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	};

insert_update_list:
	insert_update_list ',' insert_update_elem
	| insert_update_elem;

insert_update_elem:
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	simple_ident_nospvar equal expr_or_default
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	  {
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	  LEX *lex= Lex;
	  if (lex->update_list.push_back($1) || 
	      lex->value_list.push_back($3))
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	      YYABORT;
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	  };
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opt_low_priority:
7938
	/* empty */	{ $$= YYTHD->update_lock_default; }
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7939
	| LOW_PRIORITY	{ $$= TL_WRITE_LOW_PRIORITY; };
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/* Delete rows from a table */

delete:
7944
	DELETE_SYM
7945
	{
7946 7947
	  LEX *lex= Lex;
	  lex->sql_command= SQLCOM_DELETE;
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7948
	  mysql_init_select(lex);
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	  lex->lock_option= lex->thd->update_lock_default;
7950
	  lex->ignore= 0;
7951
	  lex->select_lex.init_order();
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7952
	}
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	opt_delete_options single_multi {}
	;
7955 7956

single_multi:
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 	FROM table_ident
	{
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	  if (!Select->add_table_to_list(YYTHD, $2, NULL, TL_OPTION_UPDATING,
					 Lex->lock_option))
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	    YYABORT;
	}
	where_clause opt_order_clause
7964
	delete_limit_clause {}
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	| table_wild_list
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	  { mysql_init_multi_delete(Lex); }
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          FROM join_table_list where_clause
7968 7969 7970 7971
          { 
            if (multi_delete_set_locks_and_link_aux_tables(Lex))
              YYABORT;
          }
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	| FROM table_wild_list
	  { mysql_init_multi_delete(Lex); }
7974
	  USING join_table_list where_clause
7975 7976 7977 7978
          { 
            if (multi_delete_set_locks_and_link_aux_tables(Lex))
              YYABORT;
          }
7979
	;
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table_wild_list:
	  table_wild_one {}
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	  | table_wild_list ',' table_wild_one {};
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table_wild_one:
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	ident opt_wild opt_table_alias
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	{
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	  if (!Select->add_table_to_list(YYTHD, new Table_ident($1), $3,
7989 7990
					 TL_OPTION_UPDATING | 
                                         TL_OPTION_ALIAS, Lex->lock_option))
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	    YYABORT;
        }
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	| ident '.' ident opt_wild opt_table_alias
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7994
	  {
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	    if (!Select->add_table_to_list(YYTHD,
					   new Table_ident(YYTHD, $1, $3, 0),
7997 7998 7999
					   $5, 
                                           TL_OPTION_UPDATING | 
                                           TL_OPTION_ALIAS,
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					   Lex->lock_option))
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	      YYABORT;
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	  }
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	;
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opt_wild:
8006
	/* empty */	{}
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	| '.' '*'	{};
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8010
opt_delete_options:
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	/* empty */	{}
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	| opt_delete_option opt_delete_options {};
8013 8014

opt_delete_option:
8015
	QUICK		{ Select->options|= OPTION_QUICK; }
8016
	| LOW_PRIORITY	{ Lex->lock_option= TL_WRITE_LOW_PRIORITY; }
8017
	| IGNORE_SYM	{ Lex->ignore= 1; };
8018

8019
truncate:
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8020
	TRUNCATE_SYM opt_table_sym table_name
8021
	{
8022
	  LEX* lex= Lex;
8023
	  lex->sql_command= SQLCOM_TRUNCATE;
8024
	  lex->select_lex.options= 0;
8025
          lex->select_lex.sql_cache= SELECT_LEX::SQL_CACHE_UNSPECIFIED;
8026
	  lex->select_lex.init_order();
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	}
	;
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opt_table_sym:
	/* empty */
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	| TABLE_SYM;
8033

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/* Show things */

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show:	SHOW
	{
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	  LEX *lex=Lex;
	  lex->wild=0;
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          lex->lock_option= TL_READ;
          mysql_init_select(lex);
          lex->current_select->parsing_place= SELECT_LIST;
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	  bzero((char*) &lex->create_info,sizeof(lex->create_info));
	}
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	show_param
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	{}
	;
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show_param:
8050
         DATABASES wild_and_where
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         {
           LEX *lex= Lex;
8053
           lex->sql_command= SQLCOM_SHOW_DATABASES;
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           if (prepare_schema_table(YYTHD, lex, 0, SCH_SCHEMATA))
             YYABORT;
         }
8057
         | opt_full TABLES opt_db wild_and_where
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           {
             LEX *lex= Lex;
8060
             lex->sql_command= SQLCOM_SHOW_TABLES;
8061
             lex->select_lex.db= $3;
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             if (prepare_schema_table(YYTHD, lex, 0, SCH_TABLE_NAMES))
               YYABORT;
           }
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         | opt_full TRIGGERS_SYM opt_db wild_and_where
           {
             LEX *lex= Lex;
8068
             lex->sql_command= SQLCOM_SHOW_TRIGGERS;
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             lex->select_lex.db= $3;
             if (prepare_schema_table(YYTHD, lex, 0, SCH_TRIGGERS))
               YYABORT;
           }
8073
         | EVENTS_SYM opt_db wild_and_where
8074 8075
           {
             LEX *lex= Lex;
8076
             lex->sql_command= SQLCOM_SHOW_EVENTS;
8077
             lex->select_lex.db= $2;
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             if (prepare_schema_table(YYTHD, lex, 0, SCH_EVENTS))
               YYABORT;
           }
8081
         | TABLE_SYM STATUS_SYM opt_db wild_and_where
8082 8083
           {
             LEX *lex= Lex;
8084
             lex->sql_command= SQLCOM_SHOW_TABLE_STATUS;
8085
             lex->select_lex.db= $3;
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             if (prepare_schema_table(YYTHD, lex, 0, SCH_TABLES))
               YYABORT;
           }
8089
        | OPEN_SYM TABLES opt_db wild_and_where
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	  {
8091
	    LEX *lex= Lex;
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            lex->sql_command= SQLCOM_SHOW_OPEN_TABLES;
8093
	    lex->select_lex.db= $3;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_OPEN_TABLES))
              YYABORT;
8096
	  }
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        | opt_full PLUGIN_SYM
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	  {
	    LEX *lex= Lex;
	    WARN_DEPRECATED(yythd, "5.2", "SHOW PLUGIN", "'SHOW PLUGINS'");
8101
            lex->sql_command= SQLCOM_SHOW_PLUGINS;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_PLUGINS))
              YYABORT;
	  }
        | PLUGINS_SYM
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	  {
	    LEX *lex= Lex;
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            lex->sql_command= SQLCOM_SHOW_PLUGINS;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_PLUGINS))
              YYABORT;
	  }
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	| ENGINE_SYM storage_engines 
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	  { Lex->create_info.db_type= $2; }
	  show_engine_param
8115
	| ENGINE_SYM ALL 
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	  { Lex->create_info.db_type= NULL; }
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	  show_engine_param
8118
	| opt_full COLUMNS from_or_in table_ident opt_db wild_and_where
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	  {
8120
 	    LEX *lex= Lex;
8121
	    lex->sql_command= SQLCOM_SHOW_FIELDS;
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	    if ($5)
	      $4->change_db($5);
	    if (prepare_schema_table(YYTHD, lex, $4, SCH_COLUMNS))
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	      YYABORT;
	  }
8127
        | NEW_SYM MASTER_SYM FOR_SYM SLAVE WITH MASTER_LOG_FILE_SYM EQ
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	  TEXT_STRING_sys AND_SYM MASTER_LOG_POS_SYM EQ ulonglong_num
	  AND_SYM MASTER_SERVER_ID_SYM EQ
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	ulong_num
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          {
	    Lex->sql_command = SQLCOM_SHOW_NEW_MASTER;
	    Lex->mi.log_file_name = $8.str;
	    Lex->mi.pos = $12;
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	    Lex->mi.server_id = $16;
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          }
8137
        | master_or_binary LOGS_SYM
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          {
	    Lex->sql_command = SQLCOM_SHOW_BINLOGS;
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          }
        | SLAVE HOSTS_SYM
          {
	    Lex->sql_command = SQLCOM_SHOW_SLAVE_HOSTS;
          }
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        | BINLOG_SYM EVENTS_SYM binlog_in binlog_from
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          {
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	    LEX *lex= Lex;
	    lex->sql_command= SQLCOM_SHOW_BINLOG_EVENTS;
8149
          } opt_limit_clause_init
8150
        | keys_or_index from_or_in table_ident opt_db where_clause
8151 8152
          {
            LEX *lex= Lex;
8153
            lex->sql_command= SQLCOM_SHOW_KEYS;
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	    if ($4)
	      $3->change_db($4);
            if (prepare_schema_table(YYTHD, lex, $3, SCH_STATISTICS))
8157
              YYABORT;
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	  }
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	| COLUMN_SYM TYPES_SYM
	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_SHOW_COLUMN_TYPES;
	  }
	| TABLE_SYM TYPES_SYM
	  {
	    LEX *lex=Lex;
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	    lex->sql_command= SQLCOM_SHOW_STORAGE_ENGINES;
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	    WARN_DEPRECATED(yythd, "5.2", "SHOW TABLE TYPES", "'SHOW [STORAGE] ENGINES'");
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	  }
	| opt_storage ENGINES_SYM
	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_SHOW_STORAGE_ENGINES;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_ENGINES))
              YYABORT;
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	  }
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	| AUTHORS_SYM
	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_SHOW_AUTHORS;
	  }
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	| CONTRIBUTORS_SYM
	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_SHOW_CONTRIBUTORS;
	  }
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	| PRIVILEGES
	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_SHOW_PRIVILEGES;
	  }
8192
        | COUNT_SYM '(' '*' ')' WARNINGS
8193
          { (void) create_select_for_variable("warning_count"); }
8194
        | COUNT_SYM '(' '*' ')' ERRORS
8195
	  { (void) create_select_for_variable("error_count"); }
8196
        | WARNINGS opt_limit_clause_init
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          { Lex->sql_command = SQLCOM_SHOW_WARNS;}
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        | ERRORS opt_limit_clause_init
8199
          { Lex->sql_command = SQLCOM_SHOW_ERRORS;}
8200
        | opt_var_type STATUS_SYM wild_and_where
8201
          {
8202
            LEX *lex= Lex;
8203
            lex->sql_command= SQLCOM_SHOW_STATUS;
8204
            lex->option_type= $1;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_STATUS))
              YYABORT;
8207
	  }
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        | INNOBASE_SYM STATUS_SYM
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          {
            LEX *lex= Lex;
            lex->sql_command = SQLCOM_SHOW_ENGINE_STATUS;
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            if (!(lex->create_info.db_type=
                  ha_resolve_by_legacy_type(YYTHD, DB_TYPE_INNODB)))
            {
	      my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), "InnoDB");
	      YYABORT;
            }
8218
            WARN_DEPRECATED(yythd, "5.2", "SHOW INNODB STATUS", "'SHOW ENGINE INNODB STATUS'");
8219
	  }
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        | MUTEX_SYM STATUS_SYM
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          {
	    LEX *lex= Lex;
8223
            lex->sql_command = SQLCOM_SHOW_ENGINE_MUTEX;
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            if (!(lex->create_info.db_type=
                  ha_resolve_by_legacy_type(YYTHD, DB_TYPE_INNODB)))
            {
	      my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), "InnoDB");
	      YYABORT;
            }
8230
            WARN_DEPRECATED(yythd, "5.2", "SHOW MUTEX STATUS", "'SHOW ENGINE INNODB MUTEX'");
8231
	  }
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	| opt_full PROCESSLIST_SYM
	  { Lex->sql_command= SQLCOM_SHOW_PROCESSLIST;}
8234
        | opt_var_type  VARIABLES wild_and_where
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	  {
8236
            LEX *lex= Lex;
8237
            lex->sql_command= SQLCOM_SHOW_VARIABLES;
8238
            lex->option_type= $1;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_VARIABLES))
              YYABORT;
8241
	  }
8242
        | charset wild_and_where
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          {
            LEX *lex= Lex;
8245
            lex->sql_command= SQLCOM_SHOW_CHARSETS;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_CHARSETS))
              YYABORT;
          }
8249
        | COLLATION_SYM wild_and_where
8250 8251
          {
            LEX *lex= Lex;
8252
            lex->sql_command= SQLCOM_SHOW_COLLATIONS;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_COLLATIONS))
              YYABORT;
          }
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	| GRANTS
	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_SHOW_GRANTS;
	    LEX_USER *curr_user;
8261
            if (!(curr_user= (LEX_USER*) lex->thd->alloc(sizeof(st_lex_user))))
8262
              YYABORT;
8263
            bzero(curr_user, sizeof(st_lex_user));
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	    lex->grant_user= curr_user;
	  }
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	| GRANTS FOR_SYM user
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	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_SHOW_GRANTS;
	    lex->grant_user=$3;
8271
	    lex->grant_user->password=null_lex_str;
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	  }
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	| CREATE DATABASE opt_if_not_exists ident
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	  {
	    Lex->sql_command=SQLCOM_SHOW_CREATE_DB;
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	    Lex->create_info.options=$3;
	    Lex->name=$4.str;
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	  }
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        | CREATE TABLE_SYM table_ident
          {
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            LEX *lex= Lex;
	    lex->sql_command = SQLCOM_SHOW_CREATE;
	    if (!lex->select_lex.add_table_to_list(YYTHD, $3, NULL,0))
	      YYABORT;
            lex->only_view= 0;
	  }
        | CREATE VIEW_SYM table_ident
          {
            LEX *lex= Lex;
	    lex->sql_command = SQLCOM_SHOW_CREATE;
	    if (!lex->select_lex.add_table_to_list(YYTHD, $3, NULL, 0))
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	      YYABORT;
8293
            lex->only_view= 1;
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	  }
        | MASTER_SYM STATUS_SYM
          {
	    Lex->sql_command = SQLCOM_SHOW_MASTER_STAT;
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          }
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        | SLAVE STATUS_SYM
          {
	    Lex->sql_command = SQLCOM_SHOW_SLAVE_STAT;
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          }
	| CREATE PROCEDURE sp_name
	  {
	    LEX *lex= Lex;

	    lex->sql_command = SQLCOM_SHOW_CREATE_PROC;
	    lex->spname= $3;
	  }
	| CREATE FUNCTION_SYM sp_name
	  {
	    LEX *lex= Lex;

	    lex->sql_command = SQLCOM_SHOW_CREATE_FUNC;
	    lex->spname= $3;
	  }
8317
	| PROCEDURE STATUS_SYM wild_and_where
8318
	  {
8319
            LEX *lex= Lex;
8320
            lex->sql_command= SQLCOM_SHOW_STATUS_PROC;
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	    if (!sp_add_to_query_tables(YYTHD, lex, "mysql", "proc", TL_READ))
	      YYABORT;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_PROCEDURES))
              YYABORT;
8325
	  }
8326
	| FUNCTION_SYM STATUS_SYM wild_and_where
8327
	  {
8328
            LEX *lex= Lex;
8329
            lex->sql_command= SQLCOM_SHOW_STATUS_FUNC;
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	    if (!sp_add_to_query_tables(YYTHD, lex, "mysql", "proc", TL_READ))
	      YYABORT;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_PROCEDURES))
              YYABORT;
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	  }
        | PROCEDURE CODE_SYM sp_name
          {
#ifdef DBUG_OFF
            yyerror(ER(ER_SYNTAX_ERROR));
            YYABORT;
#else
            Lex->sql_command= SQLCOM_SHOW_PROC_CODE;
	    Lex->spname= $3;
#endif
          }
        | FUNCTION_SYM CODE_SYM sp_name
          {
#ifdef DBUG_OFF
            yyerror(ER(ER_SYNTAX_ERROR));
            YYABORT;
#else
            Lex->sql_command= SQLCOM_SHOW_FUNC_CODE;
	    Lex->spname= $3;
#endif
          }
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        | CREATE EVENT_SYM sp_name
          {
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            Lex->spname= $3;
8358
            Lex->sql_command = SQLCOM_SHOW_CREATE_EVENT;
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          }
      ;
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show_engine_param:
	STATUS_SYM
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	  { Lex->sql_command= SQLCOM_SHOW_ENGINE_STATUS; }
	| MUTEX_SYM
	  { Lex->sql_command= SQLCOM_SHOW_ENGINE_MUTEX; }
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	| LOGS_SYM
8368
	  { Lex->sql_command= SQLCOM_SHOW_ENGINE_LOGS; };
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master_or_binary:
	MASTER_SYM
	| BINARY;

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opt_storage:
	/* empty */
	| STORAGE_SYM;

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opt_db:
	/* empty */  { $$= 0; }
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	| from_or_in ident { $$= $2.str; };
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opt_full:
	/* empty */ { Lex->verbose=0; }
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	| FULL	    { Lex->verbose=1; };
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from_or_in:
	FROM
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	| IN_SYM;
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binlog_in:
	/* empty */ { Lex->mi.log_file_name = 0; }
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        | IN_SYM TEXT_STRING_sys { Lex->mi.log_file_name = $2.str; };
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binlog_from:
	/* empty */ { Lex->mi.pos = 4; /* skip magic number */ }
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        | FROM ulonglong_num { Lex->mi.pos = $2; };
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wild_and_where:
      /* empty */
      | LIKE TEXT_STRING_sys
	{ Lex->wild=  new (YYTHD->mem_root) String($2.str, $2.length,
                                                   system_charset_info); }
      | WHERE expr
        {
          Select->where= $2;
          if ($2)
            $2->top_level_item();
        }
      ;

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/* A Oracle compatible synonym for show */
describe:
	describe_command table_ident
	{
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          LEX *lex= Lex;
          lex->lock_option= TL_READ;
          mysql_init_select(lex);
          lex->current_select->parsing_place= SELECT_LIST;
8420
          lex->sql_command= SQLCOM_SHOW_FIELDS;
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          lex->select_lex.db= 0;
          lex->verbose= 0;
          if (prepare_schema_table(YYTHD, lex, $2, SCH_COLUMNS))
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	    YYABORT;
	}
8426
	opt_describe_column {}
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	| describe_command opt_extended_describe
	  { Lex->describe|= DESCRIBE_NORMAL; }
	  select
8430
          {
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	    LEX *lex=Lex;
8432
	    lex->select_lex.options|= SELECT_DESCRIBE;
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	  }
	;
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describe_command:
	DESC
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	| DESCRIBE;
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opt_extended_describe:
	/* empty */ {}
	| EXTENDED_SYM { Lex->describe|= DESCRIBE_EXTENDED; }
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	| PARTITIONS_SYM { Lex->describe|= DESCRIBE_PARTITIONS; }
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	;

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opt_describe_column:
	/* empty */	{}
	| text_string	{ Lex->wild= $1; }
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	| ident
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	  { Lex->wild= new (YYTHD->mem_root) String((const char*) $1.str,$1.length,system_charset_info); };
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/* flush things */

flush:
8457
	FLUSH_SYM opt_no_write_to_binlog
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	{
	  LEX *lex=Lex;
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	  lex->sql_command= SQLCOM_FLUSH;
          lex->type= 0;
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          lex->no_write_to_binlog= $2;
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	}
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	flush_options
	{}
	;
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flush_options:
	flush_options ',' flush_option
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	| flush_option;
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flush_option:
8473
	table_or_tables	{ Lex->type|= REFRESH_TABLES; } opt_table_list {}
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	| TABLES WITH READ_SYM LOCK_SYM { Lex->type|= REFRESH_TABLES | REFRESH_READ_LOCK; }
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	| QUERY_SYM CACHE_SYM { Lex->type|= REFRESH_QUERY_CACHE_FREE; }
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	| HOSTS_SYM	{ Lex->type|= REFRESH_HOSTS; }
	| PRIVILEGES	{ Lex->type|= REFRESH_GRANT; }
	| LOGS_SYM	{ Lex->type|= REFRESH_LOG; }
	| STATUS_SYM	{ Lex->type|= REFRESH_STATUS; }
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        | SLAVE         { Lex->type|= REFRESH_SLAVE; }
        | MASTER_SYM    { Lex->type|= REFRESH_MASTER; }
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	| DES_KEY_FILE	{ Lex->type|= REFRESH_DES_KEY_FILE; }
 	| RESOURCES     { Lex->type|= REFRESH_USER_RESOURCES; };
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opt_table_list:
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	/* empty */  {;}
	| table_list {;};
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reset:
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	RESET_SYM
	{
	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_RESET; lex->type=0;
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	} reset_options
	{}
	;

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reset_options:
	reset_options ',' reset_option
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	| reset_option;
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reset_option:
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        SLAVE                 { Lex->type|= REFRESH_SLAVE; }
        | MASTER_SYM          { Lex->type|= REFRESH_MASTER; }
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	| QUERY_SYM CACHE_SYM { Lex->type|= REFRESH_QUERY_CACHE;};
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purge:
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	PURGE
	{
	  LEX *lex=Lex;
	  lex->type=0;
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	} purge_options
	{}
	;

purge_options:
8517
	master_or_binary LOGS_SYM purge_option
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	;
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purge_option:
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        TO_SYM TEXT_STRING_sys
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        {
	   Lex->sql_command = SQLCOM_PURGE;
	   Lex->to_log = $2.str;
        }
	| BEFORE_SYM expr
	{
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	  LEX *lex= Lex;
	  lex->value_list.empty();
	  lex->value_list.push_front($2);
	  lex->sql_command= SQLCOM_PURGE_BEFORE;
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	}
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	;
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/* kill threads */

kill:
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	KILL_SYM kill_option expr
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	{
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	  LEX *lex=Lex;
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	  lex->value_list.empty();
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	  lex->value_list.push_front($3);
          lex->sql_command= SQLCOM_KILL;
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	};
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kill_option:
	/* empty */	 { Lex->type= 0; }
	| CONNECTION_SYM { Lex->type= 0; }
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	| QUERY_SYM      { Lex->type= ONLY_KILL_QUERY; }
        ;
8551

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/* change database */

use:	USE_SYM ident
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	{
	  LEX *lex=Lex;
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	  lex->sql_command=SQLCOM_CHANGE_DB;
	  lex->select_lex.db= $2.str;
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	};
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/* import, export of files */

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load:   LOAD DATA_SYM
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        {
          LEX *lex=Lex;
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	  if (lex->sphead)
	  {
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "LOAD DATA");
	    YYABORT;
	  }
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          lex->fname_start= lex->ptr;
        }
        load_data
        {}
        |
        LOAD TABLE_SYM table_ident FROM MASTER_SYM
        {
8578
	  LEX *lex=Lex;
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          WARN_DEPRECATED(yythd, "5.2", "LOAD TABLE FROM MASTER",
                          "MySQL Administrator (mysqldump, mysql)");
8581
          if (lex->sphead)
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	  {
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "LOAD TABLE");
	    YYABORT;
	  }
          lex->sql_command = SQLCOM_LOAD_MASTER_TABLE;
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          if (!Select->add_table_to_list(YYTHD, $3, NULL, TL_OPTION_UPDATING))
            YYABORT;
        };

load_data:
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	load_data_lock opt_local INFILE TEXT_STRING_filesystem
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	{
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	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_LOAD;
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	  lex->lock_option= $1;
	  lex->local_file=  $2;
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	  lex->duplicates= DUP_ERROR;
	  lex->ignore= 0;
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	  if (!(lex->exchange= new sql_exchange($4.str, 0)))
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	    YYABORT;
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        }
        opt_duplicate INTO
        {
	  LEX *lex=Lex;
	  lex->fname_end= lex->ptr;
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	}
8608
        TABLE_SYM table_ident
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        {
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          LEX *lex=Lex;
          if (!Select->add_table_to_list(YYTHD, $10, NULL, TL_OPTION_UPDATING,
                                         lex->lock_option))
            YYABORT;
          lex->field_list.empty();
          lex->update_list.empty();
          lex->value_list.empty();
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        }
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        opt_field_term opt_line_term opt_ignore_lines opt_field_or_var_spec
        opt_load_data_set_spec
        {}
8621
        |
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	FROM MASTER_SYM
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        {
	  Lex->sql_command = SQLCOM_LOAD_MASTER_DATA;
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          WARN_DEPRECATED(yythd, "5.2", "LOAD DATA FROM MASTER",
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                          "mysqldump or future "
                          "BACKUP/RESTORE DATABASE facility");
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        };
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opt_local:
	/* empty */	{ $$=0;}
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	| LOCAL_SYM	{ $$=1;};
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load_data_lock:
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	/* empty */	{ $$= YYTHD->update_lock_default; }
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	| CONCURRENT
          {
#ifdef HAVE_QUERY_CACHE
            /*
              Ignore this option in SP to avoid problem with query cache
            */
            if (Lex->sphead != 0)
#endif
              $$= TL_WRITE_CONCURRENT_INSERT;
          }
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	| LOW_PRIORITY	{ $$= TL_WRITE_LOW_PRIORITY; };
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opt_duplicate:
	/* empty */	{ Lex->duplicates=DUP_ERROR; }
	| REPLACE	{ Lex->duplicates=DUP_REPLACE; }
8652
	| IGNORE_SYM	{ Lex->ignore= 1; };
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opt_field_term:
	/* empty */
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	| COLUMNS field_term_list;
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field_term_list:
	field_term_list field_term
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	| field_term;
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field_term:
8663 8664
	TERMINATED BY text_string 
          {
8665
            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->field_term= $3;
          }
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	| OPTIONALLY ENCLOSED BY text_string
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	  {
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            LEX *lex= Lex;
8671
            DBUG_ASSERT(lex->exchange != 0);
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            lex->exchange->enclosed= $4;
            lex->exchange->opt_enclosed= 1;
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	  }
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        | ENCLOSED BY text_string
8676
          {
8677
            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->enclosed= $3;
          }
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        | ESCAPED BY text_string
8681
          {
8682
            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->escaped= $3;
          };
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opt_line_term:
	/* empty */
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	| LINES line_term_list;
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line_term_list:
	line_term_list line_term
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	| line_term;
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line_term:
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        TERMINATED BY text_string
8696
          {
8697
            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->line_term= $3;
          }
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        | STARTING BY text_string
8701
          {
8702
            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->line_start= $3;
          };
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opt_ignore_lines:
	/* empty */
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        | IGNORE_SYM NUM LINES
          {
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            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->skip_lines= atol($2.str);
          };
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opt_field_or_var_spec:
	/* empty */	          { }
	| '(' fields_or_vars ')'  { }
	| '(' ')'	          { };

fields_or_vars:
        fields_or_vars ',' field_or_var
          { Lex->field_list.push_back($3); }
        | field_or_var
          { Lex->field_list.push_back($1); }
        ;
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field_or_var:
        simple_ident_nospvar {$$= $1;}
        | '@' ident_or_text
          { $$= new Item_user_var_as_out_param($2); }
        ;

opt_load_data_set_spec:
        /* empty */           { }
        | SET insert_update_list  { };


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/* Common definitions */

text_literal:
8740
	TEXT_STRING_literal
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	{
	  THD *thd= YYTHD;
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	  $$ = new Item_string($1.str,$1.length,thd->variables.collation_connection);
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	}
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	| NCHAR_STRING
8746
	{ $$=  new Item_string($1.str,$1.length,national_charset_info); }
8747
	| UNDERSCORE_CHARSET TEXT_STRING
8748
	  { $$ = new Item_string($2.str,$2.length,Lex->underscore_charset); }
8749
	| text_literal TEXT_STRING_literal
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	  { ((Item_string*) $1)->append($2.str,$2.length); }
	;
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text_string:
8754
	TEXT_STRING_literal
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	{ $$=  new (YYTHD->mem_root) String($1.str,$1.length,YYTHD->variables.collation_connection); }
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	| HEX_NUM
	  {
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	    Item *tmp= new Item_hex_string($1.str, $1.length);
8759
	    /*
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	      it is OK only emulate fix_fields, because we need only
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              value of constant
	    */
	    $$= tmp ?
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	      tmp->quick_fix_field(), tmp->val_str((String*) 0) :
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	      (String*) 0;
8766
	  }
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        | BIN_NUM
          {
	    Item *tmp= new Item_bin_string($1.str, $1.length);
	    /*
	      it is OK only emulate fix_fields, because we need only
              value of constant
	    */
	    $$= tmp ? tmp->quick_fix_field(), tmp->val_str((String*) 0) :
		      (String*) 0;
          }
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	;

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param_marker:
8780
        PARAM_MARKER
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        {
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          THD *thd=YYTHD;
	  LEX *lex= thd->lex;
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          Item_param *item;
          if (! lex->parsing_options.allows_variable)
          {
            my_error(ER_VIEW_SELECT_VARIABLE, MYF(0));
            YYABORT;
          }
          item= new Item_param((uint) (lex->tok_start - (uchar *) thd->query));
8791
          if (!($$= item) || lex->param_list.push_back(item))
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          {
8793
            my_message(ER_OUT_OF_RESOURCES, ER(ER_OUT_OF_RESOURCES), MYF(0));
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            YYABORT;
          }
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        }
	;

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signed_literal:
	literal		{ $$ = $1; }
	| '+' NUM_literal { $$ = $2; }
8802 8803
	| '-' NUM_literal
	  {
8804
	    $2->max_length++;
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	    $$= $2->neg();
8806
	  }
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	;


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literal:
	text_literal	{ $$ =	$1; }
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	| NUM_literal	{ $$ = $1; }
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	| NULL_SYM	{ $$ =	new Item_null();
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			  Lex->next_state=MY_LEX_OPERATOR_OR_IDENT;}
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	| FALSE_SYM	{ $$= new Item_int((char*) "FALSE",0,1); }
	| TRUE_SYM	{ $$= new Item_int((char*) "TRUE",1,1); }
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	| HEX_NUM	{ $$ =	new Item_hex_string($1.str, $1.length);}
	| BIN_NUM	{ $$= new Item_bin_string($1.str, $1.length); }
8819
	| UNDERSCORE_CHARSET HEX_NUM
8820
	  {
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	    Item *tmp= new Item_hex_string($2.str, $2.length);
8822
	    /*
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	      it is OK only emulate fix_fieds, because we need only
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              value of constant
	    */
	    String *str= tmp ?
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	      tmp->quick_fix_field(), tmp->val_str((String*) 0) :
8828
	      (String*) 0;
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	    $$= new Item_string(str ? str->ptr() : "",
				str ? str->length() : 0,
8831
				Lex->underscore_charset);
8832
	  }
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	| UNDERSCORE_CHARSET BIN_NUM
          {
	    Item *tmp= new Item_bin_string($2.str, $2.length);
	    /*
	      it is OK only emulate fix_fieds, because we need only
              value of constant
	    */
	    String *str= tmp ?
	      tmp->quick_fix_field(), tmp->val_str((String*) 0) :
	      (String*) 0;
	    $$= new Item_string(str ? str->ptr() : "",
				str ? str->length() : 0,
				Lex->charset);
          }
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	| DATE_SYM text_literal { $$ = $2; }
	| TIME_SYM text_literal { $$ = $2; }
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	| TIMESTAMP text_literal { $$ = $2; };
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8851
NUM_literal:
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	NUM		{ int error; $$ = new Item_int($1.str, (longlong) my_strtoll10($1.str, NULL, &error), $1.length); }
	| LONG_NUM	{ int error; $$ = new Item_int($1.str, (longlong) my_strtoll10($1.str, NULL, &error), $1.length); }
8854
	| ULONGLONG_NUM	{ $$ =	new Item_uint($1.str, $1.length); }
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        | DECIMAL_NUM
8856
	{
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           $$= new Item_decimal($1.str, $1.length, YYTHD->charset());
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	   if (YYTHD->net.report_error)
	   {
	     YYABORT;
	   }
	}
	| FLOAT_NUM
	{
	   $$ =	new Item_float($1.str, $1.length);
	   if (YYTHD->net.report_error)
	   {
	     YYABORT;
	   }
	}
8871
	;
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/**********************************************************************
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** Creating different items.
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**********************************************************************/

insert_ident:
8878
	simple_ident_nospvar { $$=$1; }
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	| table_wild	 { $$=$1; };
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table_wild:
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	ident '.' '*'
8883
	{
8884
          SELECT_LEX *sel= Select;
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	  $$ = new Item_field(Lex->current_context(), NullS, $1.str, "*");
8886
	  sel->with_wild++;
8887
	}
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	| ident '.' ident '.' '*'
8889
	{
8890
          SELECT_LEX *sel= Select;
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	  $$ = new Item_field(Lex->current_context(), (YYTHD->client_capabilities &
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                             CLIENT_NO_SCHEMA ? NullS : $1.str),
                             $3.str,"*");
8894
	  sel->with_wild++;
8895 8896
	}
	;
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order_ident:
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	expr { $$=$1; };
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simple_ident:
8902 8903
	ident
	{
8904
	  sp_variable_t *spv;
8905 8906
	  LEX *lex = Lex;
          sp_pcontext *spc = lex->spcont;
8907
	  if (spc && (spv = spc->find_variable(&$1)))
8908 8909
	  {
            /* We're compiling a stored procedure and found a variable */
8910 8911 8912 8913 8914 8915
            if (! lex->parsing_options.allows_variable)
            {
              my_error(ER_VIEW_SELECT_VARIABLE, MYF(0));
              YYABORT;
            }

8916
            Item_splocal *splocal;
8917 8918
            splocal= new Item_splocal($1, spv->offset, spv->type,
                                      lex->tok_start_prev - 
8919
                                      lex->sphead->m_tmp_query);
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#ifndef DBUG_OFF
8921
            if (splocal)
8922
              splocal->m_sp= lex->sphead;
8923
#endif
8924
	    $$ = (Item*) splocal;
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	    lex->safe_to_cache_query=0;
	  }
	  else
	  {
	    SELECT_LEX *sel=Select;
	    $$= (sel->parsing_place != IN_HAVING ||
	         sel->get_in_sum_expr() > 0) ?
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                 (Item*) new Item_field(Lex->current_context(), NullS, NullS, $1.str) :
	         (Item*) new Item_ref(Lex->current_context(), NullS, NullS, $1.str);
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	  }
        }
        | simple_ident_q { $$= $1; }
	;

simple_ident_nospvar:
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	ident
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	{
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	  SELECT_LEX *sel=Select;
8943
	  $$= (sel->parsing_place != IN_HAVING ||
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	       sel->get_in_sum_expr() > 0) ?
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              (Item*) new Item_field(Lex->current_context(), NullS, NullS, $1.str) :
	      (Item*) new Item_ref(Lex->current_context(), NullS, NullS, $1.str);
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	}
8948
	| simple_ident_q { $$= $1; }
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	;
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simple_ident_q:
	ident '.' ident
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	{
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	  THD *thd= YYTHD;
8955
	  LEX *lex= thd->lex;
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          /*
            FIXME This will work ok in simple_ident_nospvar case because
            we can't meet simple_ident_nospvar in trigger now. But it
            should be changed in future.
          */
          if (lex->sphead && lex->sphead->m_type == TYPE_ENUM_TRIGGER &&
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              (!my_strcasecmp(system_charset_info, $1.str, "NEW") ||
8964 8965
               !my_strcasecmp(system_charset_info, $1.str, "OLD")))
          {
8966
            Item_trigger_field *trg_fld;
8967
            bool new_row= ($1.str[0]=='N' || $1.str[0]=='n');
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8969 8970 8971
            if (lex->trg_chistics.event == TRG_EVENT_INSERT &&
                !new_row)
            {
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              my_error(ER_TRG_NO_SUCH_ROW_IN_TRG, MYF(0), "OLD", "on INSERT");
8973 8974
              YYABORT;
            }
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8976 8977 8978
            if (lex->trg_chistics.event == TRG_EVENT_DELETE &&
                new_row)
            {
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              my_error(ER_TRG_NO_SUCH_ROW_IN_TRG, MYF(0), "NEW", "on DELETE");
8980 8981
              YYABORT;
            }
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8983 8984 8985 8986 8987
            DBUG_ASSERT(!new_row ||
                        (lex->trg_chistics.event == TRG_EVENT_INSERT ||
                         lex->trg_chistics.event == TRG_EVENT_UPDATE));
            const bool read_only=
              !(new_row && lex->trg_chistics.action_time == TRG_ACTION_BEFORE);
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            if (!(trg_fld= new Item_trigger_field(Lex->current_context(),
8989
                                                  new_row ?
8990 8991
                                                  Item_trigger_field::NEW_ROW:
                                                  Item_trigger_field::OLD_ROW,
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                                                  $3.str,
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                                                  SELECT_ACL,
                                                  read_only)))
8995
              YYABORT;
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            /*
              Let us add this item to list of all Item_trigger_field objects
              in trigger.
            */
            lex->trg_table_fields.link_in_list((byte *)trg_fld,
              (byte**)&trg_fld->next_trg_field);
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            $$= (Item *)trg_fld;
          }
          else
          {
	    SELECT_LEX *sel= lex->current_select;
	    if (sel->no_table_names_allowed)
	    {
9011 9012
	      my_error(ER_TABLENAME_NOT_ALLOWED_HERE,
                       MYF(0), $1.str, thd->where);
9013 9014 9015
	    }
	    $$= (sel->parsing_place != IN_HAVING ||
	         sel->get_in_sum_expr() > 0) ?
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	        (Item*) new Item_field(Lex->current_context(), NullS, $1.str, $3.str) :
	        (Item*) new Item_ref(Lex->current_context(), NullS, $1.str, $3.str);
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          }
        }
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	| '.' ident '.' ident
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	{
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	  THD *thd= YYTHD;
9023
	  LEX *lex= thd->lex;
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	  SELECT_LEX *sel= lex->current_select;
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	  if (sel->no_table_names_allowed)
	  {
9027 9028
	    my_error(ER_TABLENAME_NOT_ALLOWED_HERE,
                     MYF(0), $2.str, thd->where);
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	  }
9030
	  $$= (sel->parsing_place != IN_HAVING ||
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	       sel->get_in_sum_expr() > 0) ?
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	      (Item*) new Item_field(Lex->current_context(), NullS, $2.str, $4.str) :
              (Item*) new Item_ref(Lex->current_context(), NullS, $2.str, $4.str);
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	}
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	| ident '.' ident '.' ident
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	{
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	  THD *thd= YYTHD;
9038
	  LEX *lex= thd->lex;
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	  SELECT_LEX *sel= lex->current_select;
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	  if (sel->no_table_names_allowed)
	  {
9042 9043
	    my_error(ER_TABLENAME_NOT_ALLOWED_HERE,
                     MYF(0), $3.str, thd->where);
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	  }
9045
	  $$= (sel->parsing_place != IN_HAVING ||
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	       sel->get_in_sum_expr() > 0) ?
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	      (Item*) new Item_field(Lex->current_context(),
9048
                                     (YYTHD->client_capabilities &
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9049 9050
				      CLIENT_NO_SCHEMA ? NullS : $1.str),
				     $3.str, $5.str) :
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	      (Item*) new Item_ref(Lex->current_context(),
9052
                                   (YYTHD->client_capabilities &
9053
				    CLIENT_NO_SCHEMA ? NullS : $1.str),
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                                   $3.str, $5.str);
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	};
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field_ident:
	ident			{ $$=$1;}
9060 9061 9062 9063 9064
	| ident '.' ident '.' ident
          {
            TABLE_LIST *table= (TABLE_LIST*) Select->table_list.first;
            if (my_strcasecmp(table_alias_charset, $1.str, table->db))
            {
9065
              my_error(ER_WRONG_DB_NAME, MYF(0), $1.str);
9066 9067
              YYABORT;
            }
9068 9069
            if (my_strcasecmp(table_alias_charset, $3.str,
                              table->table_name))
9070
            {
9071
              my_error(ER_WRONG_TABLE_NAME, MYF(0), $3.str);
9072 9073 9074 9075 9076 9077 9078 9079 9080
              YYABORT;
            }
            $$=$5;
          }
	| ident '.' ident
          {
            TABLE_LIST *table= (TABLE_LIST*) Select->table_list.first;
            if (my_strcasecmp(table_alias_charset, $1.str, table->alias))
            {
9081
              my_error(ER_WRONG_TABLE_NAME, MYF(0), $1.str);
9082 9083 9084 9085
              YYABORT;
            }
            $$=$3;
          }
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	| '.' ident		{ $$=$2;}	/* For Delphi */;
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table_ident:
	ident			{ $$=new Table_ident($1); }
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	| ident '.' ident	{ $$=new Table_ident(YYTHD, $1,$3,0);}
9091 9092 9093
	| '.' ident		{ $$=new Table_ident($2);} /* For Delphi */
        ;

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table_ident_nodb:
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	ident			{ LEX_STRING db={(char*) any_db,3}; $$=new Table_ident(YYTHD, db,$1,0); }
9096
        ;
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9097

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IDENT_sys:
9099 9100 9101 9102 9103
	IDENT { $$= $1; }
	| IDENT_QUOTED
	  {
	    THD *thd= YYTHD;
	    if (thd->charset_is_system_charset)
9104 9105
            {
              CHARSET_INFO *cs= system_charset_info;
9106
              int dummy_error;
9107 9108
              uint wlen= cs->cset->well_formed_len(cs, $1.str,
                                                   $1.str+$1.length,
9109
                                                   $1.length, &dummy_error);
9110 9111
              if (wlen < $1.length)
              {
9112 9113
                my_error(ER_INVALID_CHARACTER_STRING, MYF(0),
                         cs->csname, $1.str + wlen);
9114 9115
                YYABORT;
              }
9116
	      $$= $1;
9117
            }
9118 9119 9120 9121
	    else
	      thd->convert_string(&$$, system_charset_info,
				  $1.str, $1.length, thd->charset());
	  }
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	;

TEXT_STRING_sys:
	TEXT_STRING
	{
	  THD *thd= YYTHD;
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	  if (thd->charset_is_system_charset)
	    $$= $1;
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	  else
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	    thd->convert_string(&$$, system_charset_info,
				$1.str, $1.length, thd->charset());
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	}
	;

9136
TEXT_STRING_literal:
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	TEXT_STRING
	{
	  THD *thd= YYTHD;
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	  if (thd->charset_is_collation_connection)
	    $$= $1;
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	  else
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	    thd->convert_string(&$$, thd->variables.collation_connection,
				$1.str, $1.length, thd->charset());
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	}
	;


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TEXT_STRING_filesystem:
	TEXT_STRING
	{
	  THD *thd= YYTHD;
	  if (thd->charset_is_character_set_filesystem)
	    $$= $1;
	  else
	    thd->convert_string(&$$, thd->variables.character_set_filesystem,
				$1.str, $1.length, thd->charset());
	}
	;

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ident:
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	IDENT_sys	    { $$=$1; }
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	| READ_ONLY_SYM
	{
	  THD *thd= YYTHD;
	  $$.str= thd->strmake("read_only",9);
	  $$.length= 9;
	}
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	| keyword
	{
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	  THD *thd= YYTHD;
	  $$.str=    thd->strmake($1.str, $1.length);
	  $$.length= $1.length;
9174 9175
	}
	;
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9177 9178 9179 9180 9181 9182 9183 9184 9185 9186
label_ident:
	IDENT_sys	    { $$=$1; }
	| keyword_sp
	{
	  THD *thd= YYTHD;
	  $$.str=    thd->strmake($1.str, $1.length);
	  $$.length= $1.length;
	}
	;

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ident_or_text:
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        ident                   { $$=$1;}
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	| TEXT_STRING_sys	{ $$=$1;}
	| LEX_HOSTNAME		{ $$=$1;};
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user:
	ident_or_text
	{
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	  THD *thd= YYTHD;
	  if (!($$=(LEX_USER*) thd->alloc(sizeof(st_lex_user))))
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	    YYABORT;
9198 9199 9200
	  $$->user = $1;
	  $$->host.str= (char *) "%";
	  $$->host.length= 1;
9201

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9202
	  if (check_string_length(&$$->user,
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9203
                                  ER(ER_USERNAME), USERNAME_LENGTH))
9204
	    YYABORT;
9205
	}
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9206 9207
	| ident_or_text '@' ident_or_text
	  {
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9208 9209
	    THD *thd= YYTHD;
	    if (!($$=(LEX_USER*) thd->alloc(sizeof(st_lex_user))))
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9210 9211
	      YYABORT;
	    $$->user = $1; $$->host=$3;
9212

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	    if (check_string_length(&$$->user,
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                                    ER(ER_USERNAME), USERNAME_LENGTH) ||
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	        check_string_length(&$$->host,
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9216
                                    ER(ER_HOSTNAME), HOSTNAME_LENGTH))
9217
	      YYABORT;
9218
	  }
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9219
	| CURRENT_USER optional_braces
9220
	{
9221
          if (!($$=(LEX_USER*) YYTHD->alloc(sizeof(st_lex_user))))
9222
            YYABORT;
9223 9224 9225 9226 9227 9228
          /* 
            empty LEX_USER means current_user and 
            will be handled in the  get_current_user() function
            later
          */
          bzero($$, sizeof(LEX_USER));
9229
	};
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9230

9231
/* Keyword that we allow for identifiers (except SP labels) */
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keyword:
9233 9234 9235 9236 9237 9238 9239 9240 9241 9242 9243 9244 9245 9246 9247 9248 9249 9250 9251
	keyword_sp		{}
	| ASCII_SYM		{}
	| BACKUP_SYM		{}
	| BEGIN_SYM		{}
	| BYTE_SYM		{}
	| CACHE_SYM		{}
	| CHARSET		{}
	| CHECKSUM_SYM		{}
	| CLOSE_SYM		{}
	| COMMENT_SYM		{}
	| COMMIT_SYM		{}
	| CONTAINS_SYM          {}
        | DEALLOCATE_SYM        {}
	| DO_SYM		{}
	| END			{}
	| EXECUTE_SYM		{}
	| FLUSH_SYM		{}
	| HANDLER_SYM		{}
	| HELP_SYM		{}
9252
        | INSTALL_SYM           {}
9253 9254 9255
	| LANGUAGE_SYM          {}
	| NO_SYM		{}
	| OPEN_SYM		{}
9256
        | PARSER_SYM            {}
9257
	| PARTITION_SYM		{}
9258
        | PREPARE_SYM           {}
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	| REMOVE_SYM		{}
9260 9261 9262 9263 9264 9265 9266 9267
	| REPAIR		{}
	| RESET_SYM		{}
	| RESTORE_SYM		{}
	| ROLLBACK_SYM		{}
	| SAVEPOINT_SYM		{}
	| SECURITY_SYM		{}
	| SIGNED_SYM		{}
	| SLAVE			{}
9268
        | SONAME_SYM            {}
9269 9270 9271 9272
	| START_SYM		{}
	| STOP_SYM		{}
	| TRUNCATE_SYM		{}
	| UNICODE_SYM		{}
9273
        | UNINSTALL_SYM         {}
9274
        | XA_SYM                {}
9275
        | UPGRADE_SYM           {}
9276 9277 9278 9279
	;

/*
 * Keywords that we allow for labels in SPs.
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 * Anything that's the beginning of a statement or characteristics
 * must be in keyword above, otherwise we get (harmful) shift/reduce
 * conflicts.
9283 9284
 */
keyword_sp:
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	ACTION			{}
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	| ADDDATE_SYM		{}
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	| AFTER_SYM		{}
9288
	| AGAINST		{}
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	| AGGREGATE_SYM		{}
9290
	| ALGORITHM_SYM		{}
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	| ANY_SYM		{}
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	| AT_SYM                {}
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	| AUTHORS_SYM		{}
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	| AUTO_INC		{}
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	| AUTOEXTEND_SIZE_SYM   {}
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	| AVG_ROW_LENGTH	{}
	| AVG_SYM		{}
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9298
	| BINLOG_SYM		{}
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	| BIT_SYM		{}
	| BOOL_SYM		{}
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	| BOOLEAN_SYM		{}
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9302
	| BTREE_SYM		{}
9303
	| CASCADED              {}
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9304
	| CHAIN_SYM		{}
9305
	| CHANGED		{}
9306
	| CIPHER_SYM		{}
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9307
	| CLIENT_SYM		{}
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9308
	| COALESCE		{}
9309
	| CODE_SYM              {}
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	| COLLATION_SYM		{}
9311
        | COLUMNS               {}
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	| COMMITTED_SYM		{}
9313
	| COMPACT_SYM		{}
9314
	| COMPLETION_SYM	{}
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	| COMPRESSED_SYM	{}
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	| CONCURRENT		{}
9317
	| CONSISTENT_SYM	{}
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	| CONTRIBUTORS_SYM	{}
9319
	| CUBE_SYM		{}
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	| DATA_SYM		{}
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9321
	| DATAFILE_SYM          {}
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9322 9323 9324
	| DATETIME		{}
	| DATE_SYM		{}
	| DAY_SYM		{}
9325
	| DEFINER_SYM		{}
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9326
	| DELAY_KEY_WRITE_SYM	{}
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9327 9328
	| DES_KEY_FILE		{}
	| DIRECTORY_SYM		{}
9329
	| DISABLE_SYM		{}
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	| DISCARD		{}
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9331
	| DISK_SYM              {}
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9332 9333
	| DUMPFILE		{}
	| DUPLICATE_SYM		{}
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9334
	| DYNAMIC_SYM		{}
9335
	| ENDS_SYM		{}
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9336
	| ENUM			{}
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9337
	| ENGINE_SYM		{}
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9338
	| ENGINES_SYM		{}
9339
	| ERRORS		{}
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9340
	| ESCAPE_SYM		{}
9341
	| EVENT_SYM		{}
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9342
	| EVENTS_SYM		{}
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	| EVERY_SYM             {}
	| EXPANSION_SYM         {}
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9345
	| EXTENDED_SYM		{}
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	| EXTENT_SIZE_SYM       {}
9347
	| FAST_SYM		{}
9348
	| FOUND_SYM		{}
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9349
	| ENABLE_SYM		{}
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	| FULL			{}
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	| FILE_SYM		{}
	| FIRST_SYM		{}
	| FIXED_SYM		{}
9354
	| FRAC_SECOND_SYM	{}
9355
	| GEOMETRY_SYM		{}
9356
	| GEOMETRYCOLLECTION	{}
9357
	| GET_FORMAT		{}
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9358
	| GRANTS		{}
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9359
	| GLOBAL_SYM		{}
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	| HASH_SYM		{}
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	| HOSTS_SYM		{}
	| HOUR_SYM		{}
	| IDENTIFIED_SYM	{}
9364
	| INVOKER_SYM		{}
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	| IMPORT		{}
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9366
	| INDEXES		{}
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	| INITIAL_SIZE_SYM      {}
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9368
	| ISOLATION		{}
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9369
	| ISSUER_SYM		{}
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9370
	| INNOBASE_SYM		{}
9371
	| INSERT_METHOD		{}
9372
	| KEY_BLOCK_SIZE	{}
9373
	| LAST_SYM		{}
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9374
	| LEAVES                {}
9375
	| LESS_SYM		{}
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9376
	| LEVEL_SYM		{}
9377
	| LINESTRING		{}
9378
	| LIST_SYM		{}
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9379
	| LOCAL_SYM		{}
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9380
	| LOCKS_SYM		{}
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9381
	| LOGFILE_SYM           {}
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9382 9383 9384 9385 9386 9387 9388 9389 9390
	| LOGS_SYM		{}
	| MAX_ROWS		{}
	| MASTER_SYM		{}
	| MASTER_HOST_SYM	{}
	| MASTER_PORT_SYM	{}
	| MASTER_LOG_FILE_SYM	{}
	| MASTER_LOG_POS_SYM	{}
	| MASTER_USER_SYM	{}
	| MASTER_PASSWORD_SYM	{}
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9391
	| MASTER_SERVER_ID_SYM  {}
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9392
	| MASTER_CONNECT_RETRY_SYM	{}
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9393 9394 9395 9396 9397 9398
	| MASTER_SSL_SYM	{}
	| MASTER_SSL_CA_SYM	{}
	| MASTER_SSL_CAPATH_SYM	{}
	| MASTER_SSL_CERT_SYM	{}
	| MASTER_SSL_CIPHER_SYM	{}
	| MASTER_SSL_KEY_SYM	{}
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	| MAX_CONNECTIONS_PER_HOUR	 {}
	| MAX_QUERIES_PER_HOUR	{}
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9401
	| MAX_SIZE_SYM          {}
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9402
	| MAX_UPDATES_PER_HOUR	{}
9403
	| MAX_USER_CONNECTIONS_SYM {}
9404
	| MAX_VALUE_SYM         {}
9405
	| MEDIUM_SYM		{}
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9406
	| MEMORY_SYM		{}
9407
	| MERGE_SYM		{}
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9408
	| MICROSECOND_SYM	{}
9409
        | MIGRATE_SYM           {}
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9410 9411 9412
	| MINUTE_SYM		{}
	| MIN_ROWS		{}
	| MODIFY_SYM		{}
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9413
	| MODE_SYM		{}
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	| MONTH_SYM		{}
9415 9416 9417
	| MULTILINESTRING	{}
	| MULTIPOINT		{}
	| MULTIPOLYGON		{}
9418
        | MUTEX_SYM             {}
9419
	| NAME_SYM              {}
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9420
	| NAMES_SYM		{}
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	| NATIONAL_SYM		{}
	| NCHAR_SYM		{}
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9423
	| NDBCLUSTER_SYM	{}
9424
	| NEXT_SYM		{}
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9425
	| NEW_SYM		{}
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	| NO_WAIT_SYM           {}
	| NODEGROUP_SYM         {}
9428
	| NONE_SYM		{}
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9429
	| NVARCHAR_SYM		{}
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9430
	| OFFSET_SYM		{}
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9431
	| OLD_PASSWORD		{}
9432
	| ONE_SHOT_SYM		{}
9433
        | ONE_SYM               {}
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9434
	| PACK_KEYS_SYM		{}
9435
	| PARTIAL		{}
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	| PARTITIONING_SYM	{}
9437
	| PARTITIONS_SYM	{}
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	| PASSWORD		{}
9439
        | PHASE_SYM             {}
9440 9441
        | PLUGIN_SYM            {}
        | PLUGINS_SYM           {}
9442
	| POINT_SYM		{}
9443
	| POLYGON		{}
9444
        | PRESERVE_SYM          {}
9445
	| PREV_SYM		{}
9446
        | PRIVILEGES            {}
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9447 9448
	| PROCESS		{}
	| PROCESSLIST_SYM	{}
9449
	| QUARTER_SYM		{}
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9450
	| QUERY_SYM		{}
9451
	| QUICK			{}
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9452
        | REBUILD_SYM           {}
9453
        | RECOVER_SYM           {}
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9454
	| REDO_BUFFER_SIZE_SYM	{}
9455
	| REDOFILE_SYM          {}
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9456
        | REDUNDANT_SYM         {}
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	| RELAY_LOG_FILE_SYM	{}
	| RELAY_LOG_POS_SYM	{}
9459
	| RELAY_THREAD		{}
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9460
	| RELOAD		{}
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9461
	| REORGANIZE_SYM	{}
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9462
	| REPEATABLE_SYM	{}
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9463
	| REPLICATION		{}
9464
	| RESOURCES		{}
9465
        | RESUME_SYM            {}
9466
	| RETURNS_SYM           {}
9467
	| ROLLUP_SYM		{}
9468
	| ROUTINE_SYM		{}
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9469 9470 9471
	| ROWS_SYM		{}
	| ROW_FORMAT_SYM	{}
	| ROW_SYM		{}
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9472
	| RTREE_SYM		{}
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9473
	| SCHEDULE_SYM		{}	
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9474
	| SECOND_SYM		{}
9475
	| SERIAL_SYM		{}
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9476 9477
	| SERIALIZABLE_SYM	{}
	| SESSION_SYM		{}
9478
	| SIMPLE_SYM		{}
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9479
	| SHARE_SYM		{}
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9480
	| SHUTDOWN		{}
9481
	| SNAPSHOT_SYM		{}
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9482
	| SOUNDS_SYM		{}
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	| SQL_CACHE_SYM		{}
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	| SQL_BUFFER_RESULT	{}
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	| SQL_NO_CACHE_SYM	{}
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	| SQL_THREAD		{}
9487
	| STARTS_SYM		{}
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	| STATUS_SYM		{}
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	| STORAGE_SYM		{}
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	| STRING_SYM		{}
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	| SUBDATE_SYM		{}
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	| SUBJECT_SYM		{}
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	| SUBPARTITION_SYM	{}
	| SUBPARTITIONS_SYM	{}
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	| SUPER_SYM		{}
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        | SUSPEND_SYM           {}
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        | TABLES                {}
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	| TABLESPACE		{}
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	| TEMPORARY		{}
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	| TEMPTABLE_SYM		{}
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	| TEXT_SYM		{}
9502
	| THAN_SYM		{}
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	| TRANSACTION_SYM	{}
9504
	| TRIGGERS_SYM		{}
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	| TIMESTAMP		{}
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	| TIMESTAMP_ADD		{}
	| TIMESTAMP_DIFF	{}
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	| TIME_SYM		{}
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	| TYPES_SYM		{}
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        | TYPE_SYM              {}
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        | UDF_RETURNS_SYM       {}
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	| FUNCTION_SYM		{}
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	| UNCOMMITTED_SYM	{}
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	| UNDEFINED_SYM		{}
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	| UNDO_BUFFER_SIZE_SYM	{}
	| UNDOFILE_SYM  	{}
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	| UNKNOWN_SYM		{}
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	| UNTIL_SYM		{}
9519
	| USER			{}
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	| USE_FRM		{}
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	| VARIABLES		{}
9522
	| VIEW_SYM		{}
9523
	| VALUE_SYM		{}
9524
	| WARNINGS		{}
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	| WAIT_SYM              {}
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	| WEEK_SYM		{}
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	| WORK_SYM		{}
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	| X509_SYM		{}
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	| YEAR_SYM		{}
	;
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/* Option functions */

set:
	SET opt_option
	{
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	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_SET_OPTION;
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	  mysql_init_select(lex);
9540
	  lex->option_type=OPT_SESSION;
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	  lex->var_list.empty();
9542
          lex->one_shot_set= 0;
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	}
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	option_value_list
	{}
	;
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opt_option:
	/* empty */ {}
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	| OPTION {};
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option_value_list:
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	option_type_value
	| option_value_list ',' option_type_value;

option_type_value:
        {
          if (Lex->sphead)
          {
            /*
              If we are in SP we want have own LEX for each assignment.
              This is mostly because it is hard for several sp_instr_set
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              and sp_instr_set_trigger instructions share one LEX.
              (Well, it is theoretically possible but adds some extra
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               overhead on preparation for execution stage and IMO less
               robust).

              QQ: May be we should simply prohibit group assignments in SP?
            */
            LEX *lex;
            Lex->sphead->reset_lex(YYTHD);
            lex= Lex;
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            /* Set new LEX as if we at start of set rule. */
	    lex->sql_command= SQLCOM_SET_OPTION;
	    mysql_init_select(lex);
	    lex->option_type=OPT_SESSION;
	    lex->var_list.empty();
            lex->one_shot_set= 0;
	    lex->sphead->m_tmp_query= lex->tok_start;
          }
        }
9583
	ext_option_value
9584 9585
        {
          LEX *lex= Lex;
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          if (lex->sphead)
          {
            sp_head *sp= lex->sphead;
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	    if (!lex->var_list.is_empty())
	    {
              /*
                We have assignment to user or system variable or
                option setting, so we should construct sp_instr_stmt
                for it.
              */
              LEX_STRING qbuff;
	      sp_instr_stmt *i;
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              if (!(i= new sp_instr_stmt(sp->instructions(), lex->spcont,
                                         lex)))
                YYABORT;
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              /*
                Extract the query statement from the tokenizer.  The
                end is either lex->ptr, if there was no lookahead,
                lex->tok_end otherwise.
              */
              if (yychar == YYEMPTY)
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                qbuff.length= lex->ptr - sp->m_tmp_query;
              else
                qbuff.length= lex->tok_end - sp->m_tmp_query;
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              if (!(qbuff.str= alloc_root(YYTHD->mem_root, qbuff.length + 5)))
                YYABORT;
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              strmake(strmake(qbuff.str, "SET ", 4), (char *)sp->m_tmp_query,
                      qbuff.length);
              qbuff.length+= 4;
              i->m_query= qbuff;
              sp->add_instr(i);
            }
            lex->sphead->restore_lex(YYTHD);
          }
        };
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option_type:
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        option_type2    {}
	| GLOBAL_SYM	{ $$=OPT_GLOBAL; }
	| LOCAL_SYM	{ $$=OPT_SESSION; }
	| SESSION_SYM	{ $$=OPT_SESSION; }
	;

option_type2:
	/* empty */	{ $$= OPT_DEFAULT; }
	| ONE_SHOT_SYM	{ Lex->one_shot_set= 1; $$= OPT_SESSION; }
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	;

opt_var_type:
	/* empty */	{ $$=OPT_SESSION; }
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	| GLOBAL_SYM	{ $$=OPT_GLOBAL; }
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	| LOCAL_SYM	{ $$=OPT_SESSION; }
	| SESSION_SYM	{ $$=OPT_SESSION; }
	;

opt_var_ident_type:
	/* empty */		{ $$=OPT_DEFAULT; }
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	| GLOBAL_SYM '.'	{ $$=OPT_GLOBAL; }
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	| LOCAL_SYM '.'		{ $$=OPT_SESSION; }
	| SESSION_SYM '.'	{ $$=OPT_SESSION; }
	;
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ext_option_value:
        sys_option_value
        | option_type2 option_value;
9657

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sys_option_value:
        option_type internal_variable_name equal set_expr_or_default
        {
          LEX *lex=Lex;
9662

9663
          if ($2.var == trg_new_row_fake_var)
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          {
            /* We are in trigger and assigning value to field of new row */
            Item *it;
9667
            Item_trigger_field *trg_fld;
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            sp_instr_set_trigger_field *sp_fld;
	    LINT_INIT(sp_fld);
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            if ($1)
            {
              yyerror(ER(ER_SYNTAX_ERROR));
              YYABORT;
9674
            }
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            if ($4)
              it= $4;
9677
            else
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            {
              /* QQ: Shouldn't this be field's default value ? */
              it= new Item_null();
            }
9682

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            DBUG_ASSERT(lex->trg_chistics.action_time == TRG_ACTION_BEFORE &&
                        (lex->trg_chistics.event == TRG_EVENT_INSERT ||
                         lex->trg_chistics.event == TRG_EVENT_UPDATE));
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            if (!(trg_fld= new Item_trigger_field(Lex->current_context(),
9687
                                                  Item_trigger_field::NEW_ROW,
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                                                  $2.base_name.str,
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                                                  UPDATE_ACL, FALSE)) ||
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                !(sp_fld= new sp_instr_set_trigger_field(lex->sphead->
                          	                         instructions(),
                                	                 lex->spcont,
							 trg_fld,
                                        	         it, lex)))
9695
              YYABORT;
9696

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            /*
              Let us add this item to list of all Item_trigger_field
              objects in trigger.
            */
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            lex->trg_table_fields.link_in_list((byte *)trg_fld,
                                    (byte **)&trg_fld->next_trg_field);
9703

9704
            lex->sphead->add_instr(sp_fld);
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          }
          else if ($2.var)
          { /* System variable */
            if ($1)
9709
              lex->option_type= $1;
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            lex->var_list.push_back(new set_var(lex->option_type, $2.var,
                                    &$2.base_name, $4));
          }
          else
          {
            /* An SP local variable */
            sp_pcontext *ctx= lex->spcont;
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            sp_variable_t *spv;
9718
            sp_instr_set *sp_set;
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            Item *it;
            if ($1)
            {
              yyerror(ER(ER_SYNTAX_ERROR));
              YYABORT;
            }

9726
            spv= ctx->find_variable(&$2.base_name);
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            if ($4)
              it= $4;
            else if (spv->dflt)
              it= spv->dflt;
            else
              it= new Item_null();
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            sp_set= new sp_instr_set(lex->sphead->instructions(), ctx,
                                     spv->offset, it, spv->type, lex, TRUE);
            lex->sphead->add_instr(sp_set);
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          }
        }
        | option_type TRANSACTION_SYM ISOLATION LEVEL_SYM isolation_types
	{
	  LEX *lex=Lex;
9742
	  lex->option_type= $1;
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	  lex->var_list.push_back(new set_var(lex->option_type,
                                              find_sys_var("tx_isolation"),
                                              &null_lex_str,
                                              new Item_int((int32) $5)));
	}
        ;

option_value:
	'@' ident_or_text equal expr
	{
          Lex->var_list.push_back(new set_var_user(new Item_func_set_user_var($2,$4)));
	}
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	| '@' '@' opt_var_ident_type internal_variable_name equal set_expr_or_default
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	  {
	    LEX *lex=Lex;
9758
	    lex->var_list.push_back(new set_var($3, $4.var, &$4.base_name, $6));
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	  }
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	| charset old_or_new_charset_name_or_default
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	{
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	  THD *thd= YYTHD;
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	  LEX *lex= Lex;
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	  $2= $2 ? $2: global_system_variables.character_set_client;
9765
	  lex->var_list.push_back(new set_var_collation_client($2,thd->variables.collation_database,$2));
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	}
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        | NAMES_SYM equal expr
	  {
	    LEX *lex= Lex;
            sp_pcontext *spc= lex->spcont;
	    LEX_STRING names;

	    names.str= (char *)"names";
	    names.length= 5;
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	    if (spc && spc->find_variable(&names))
9776
              my_error(ER_SP_BAD_VAR_SHADOW, MYF(0), names.str);
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            else
              yyerror(ER(ER_SYNTAX_ERROR));

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	    YYABORT;
	  }
9782
	| NAMES_SYM charset_name_or_default opt_collate
9783
	{
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	  LEX *lex= Lex;
9785
	  $2= $2 ? $2 : global_system_variables.character_set_client;
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	  $3= $3 ? $3 : $2;
	  if (!my_charset_same($2,$3))
9788
	  {
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	    my_error(ER_COLLATION_CHARSET_MISMATCH, MYF(0),
                     $3->name, $2->csname);
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	    YYABORT;
9792
	  }
9793
	  lex->var_list.push_back(new set_var_collation_client($3,$3,$3));
9794
	}
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	| PASSWORD equal text_or_password
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	  {
9797
	    THD *thd=YYTHD;
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	    LEX_USER *user;
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	    LEX *lex= Lex;	    
            sp_pcontext *spc= lex->spcont;
	    LEX_STRING pw;

	    pw.str= (char *)"password";
	    pw.length= 8;
9805
	    if (spc && spc->find_variable(&pw))
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	    {
              my_error(ER_SP_BAD_VAR_SHADOW, MYF(0), pw.str);
	      YYABORT;
	    }
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	    if (!(user=(LEX_USER*) thd->alloc(sizeof(LEX_USER))))
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	      YYABORT;
9812
	    user->host=null_lex_str;
9813
	    user->user.str=thd->security_ctx->priv_user;
9814
	    thd->lex->var_list.push_back(new set_var_password(user, $3));
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	  }
	| PASSWORD FOR_SYM user equal text_or_password
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	  {
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	    Lex->var_list.push_back(new set_var_password($3,$5));
	  }
9820
	;
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internal_variable_name:
	ident
	{
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	  LEX *lex= Lex;
          sp_pcontext *spc= lex->spcont;
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	  sp_variable_t *spv;
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	  /* We have to lookup here since local vars can shadow sysvars */
9830
	  if (!spc || !(spv = spc->find_variable(&$1)))
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	  {
            /* Not an SP local variable */
	    sys_var *tmp=find_sys_var($1.str, $1.length);
	    if (!tmp)
	      YYABORT;
	    $$.var= tmp;
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	    $$.base_name= null_lex_str;
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            /*
              If this is time_zone variable we should open time zone
              describing tables 
            */
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            if (tmp == &sys_time_zone &&
                lex->add_time_zone_tables_to_query_tables(YYTHD))
              YYABORT;
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            else if (spc && tmp == &sys_autocommit)
            {
              /*
                We don't allow setting AUTOCOMMIT from a stored function
		or trigger.
              */
              lex->sphead->m_flags|= sp_head::HAS_SET_AUTOCOMMIT_STMT;
            }
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	  }
	  else
	  {
            /* An SP local variable */
	    $$.var= NULL;
	    $$.base_name= $1;
	  }
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	}
9861 9862
	| ident '.' ident
	  {
9863
            LEX *lex= Lex;
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            if (check_reserved_words(&$1))
            {
9866
	      yyerror(ER(ER_SYNTAX_ERROR));
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              YYABORT;
            }
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            if (lex->sphead && lex->sphead->m_type == TYPE_ENUM_TRIGGER &&
                (!my_strcasecmp(system_charset_info, $1.str, "NEW") || 
                 !my_strcasecmp(system_charset_info, $1.str, "OLD")))
            {
              if ($1.str[0]=='O' || $1.str[0]=='o')
              {
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                my_error(ER_TRG_CANT_CHANGE_ROW, MYF(0), "OLD", "");
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                YYABORT;
              }
              if (lex->trg_chistics.event == TRG_EVENT_DELETE)
              {
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                my_error(ER_TRG_NO_SUCH_ROW_IN_TRG, MYF(0),
                         "NEW", "on DELETE");
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                YYABORT;
              }
              if (lex->trg_chistics.action_time == TRG_ACTION_AFTER)
              {
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                my_error(ER_TRG_CANT_CHANGE_ROW, MYF(0), "NEW", "after ");
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                YYABORT;
              }
              /* This special combination will denote field of NEW row */
9890
              $$.var= trg_new_row_fake_var;
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              $$.base_name= $3;
            }
            else
            {
              sys_var *tmp=find_sys_var($3.str, $3.length);
              if (!tmp)
                YYABORT;
              if (!tmp->is_struct())
9899
                my_error(ER_VARIABLE_IS_NOT_STRUCT, MYF(0), $3.str);
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              $$.var= tmp;
              $$.base_name= $1;
            }
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	  }
	| DEFAULT '.' ident
	  {
	    sys_var *tmp=find_sys_var($3.str, $3.length);
	    if (!tmp)
	      YYABORT;
	    if (!tmp->is_struct())
9910
	      my_error(ER_VARIABLE_IS_NOT_STRUCT, MYF(0), $3.str);
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	    $$.var= tmp;
	    $$.base_name.str=    (char*) "default";
	    $$.base_name.length= 7;
9914
	  }
9915
        ;
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isolation_types:
	READ_SYM UNCOMMITTED_SYM	{ $$= ISO_READ_UNCOMMITTED; }
	| READ_SYM COMMITTED_SYM	{ $$= ISO_READ_COMMITTED; }
	| REPEATABLE_SYM READ_SYM	{ $$= ISO_REPEATABLE_READ; }
	| SERIALIZABLE_SYM		{ $$= ISO_SERIALIZABLE; }
	;
9923

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text_or_password:
	TEXT_STRING { $$=$1.str;}
	| PASSWORD '(' TEXT_STRING ')'
	  {
9928
	    $$= $3.length ? YYTHD->variables.old_passwords ?
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	        Item_func_old_password::alloc(YYTHD, $3.str) :
	        Item_func_password::alloc(YYTHD, $3.str) :
	      $3.str;
	  }
	| OLD_PASSWORD '(' TEXT_STRING ')'
	  {
	    $$= $3.length ? Item_func_old_password::alloc(YYTHD, $3.str) :
	      $3.str;
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	  }
          ;
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set_expr_or_default:
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	expr      { $$=$1; }
	| DEFAULT { $$=0; }
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	| ON	  { $$=new Item_string("ON",  2, system_charset_info); }
	| ALL	  { $$=new Item_string("ALL", 3, system_charset_info); }
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	| BINARY  { $$=new Item_string("binary", 6, system_charset_info); }
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	;
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/* Lock function */

lock:
	LOCK_SYM table_or_tables
	{
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	  LEX *lex= Lex;

	  if (lex->sphead)
	  {
9959
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "LOCK");
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	    YYABORT;
	  }
	  lex->sql_command= SQLCOM_LOCK_TABLES;
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	}
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	table_lock_list
	{}
9966
	;
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table_or_tables:
	TABLE_SYM
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	| TABLES;
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table_lock_list:
	table_lock
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	| table_lock_list ',' table_lock;
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table_lock:
	table_ident opt_table_alias lock_option
9978
	{
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	  if (!Select->add_table_to_list(YYTHD, $1, $2, 0, (thr_lock_type) $3))
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	   YYABORT;
	}
9982
        ;
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lock_option:
	READ_SYM	{ $$=TL_READ_NO_INSERT; }
9986
	| WRITE_SYM     { $$=YYTHD->update_lock_default; }
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	| LOW_PRIORITY WRITE_SYM { $$=TL_WRITE_LOW_PRIORITY; }
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	| READ_SYM LOCAL_SYM { $$= TL_READ; }
        ;
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unlock:
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	UNLOCK_SYM
	{
	  LEX *lex= Lex;

	  if (lex->sphead)
	  {
9998
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "UNLOCK");
9999 10000 10001 10002 10003 10004
	    YYABORT;
	  }
	  lex->sql_command= SQLCOM_UNLOCK_TABLES;
	}
	table_or_tables
	{}
10005
        ;
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10008
/*
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** Handler: direct access to ISAM functions
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*/

handler:
	HANDLER_SYM table_ident OPEN_SYM opt_table_alias
	{
10015
	  LEX *lex= Lex;
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	  if (lex->sphead)
	  {
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "HANDLER");
	    YYABORT;
	  }
10021
	  lex->sql_command = SQLCOM_HA_OPEN;
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	  if (!lex->current_select->add_table_to_list(lex->thd, $2, $4, 0))
10023 10024
	    YYABORT;
	}
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	| HANDLER_SYM table_ident_nodb CLOSE_SYM
10026
	{
10027
	  LEX *lex= Lex;
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	  if (lex->sphead)
	  {
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "HANDLER");
	    YYABORT;
	  }
10033
	  lex->sql_command = SQLCOM_HA_CLOSE;
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	  if (!lex->current_select->add_table_to_list(lex->thd, $2, 0, 0))
10035 10036
	    YYABORT;
	}
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	| HANDLER_SYM table_ident_nodb READ_SYM
10038
	{
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	  LEX *lex=Lex;
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	  if (lex->sphead)
	  {
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "HANDLER");
	    YYABORT;
	  }
10045
          lex->expr_allows_subselect= FALSE;
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	  lex->sql_command = SQLCOM_HA_READ;
	  lex->ha_rkey_mode= HA_READ_KEY_EXACT;	/* Avoid purify warnings */
10048
	  lex->current_select->select_limit= new Item_int((int32) 1);
10049
	  lex->current_select->offset_limit= 0;
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	  if (!lex->current_select->add_table_to_list(lex->thd, $2, 0, 0))
10051
	    YYABORT;
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        }
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        handler_read_or_scan where_clause opt_limit_clause
        {
          Lex->expr_allows_subselect= TRUE;
        }
10057
        ;
10058

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handler_read_or_scan:
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	handler_scan_function         { Lex->ident= null_lex_str; }
        | ident handler_rkey_function { Lex->ident= $1; }
10062
        ;
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handler_scan_function:
	FIRST_SYM  { Lex->ha_read_mode = RFIRST; }
10066 10067
	| NEXT_SYM { Lex->ha_read_mode = RNEXT;  }
        ;
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handler_rkey_function:
	FIRST_SYM  { Lex->ha_read_mode = RFIRST; }
	| NEXT_SYM { Lex->ha_read_mode = RNEXT;  }
	| PREV_SYM { Lex->ha_read_mode = RPREV;  }
	| LAST_SYM { Lex->ha_read_mode = RLAST;  }
10074 10075
	| handler_rkey_mode
	{
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	  LEX *lex=Lex;
	  lex->ha_read_mode = RKEY;
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	  lex->ha_rkey_mode=$1;
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	  if (!(lex->insert_list = new List_item))
10080
	    YYABORT;
10081 10082
	} '(' values ')' { }
        ;
10083 10084

handler_rkey_mode:
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	  EQ     { $$=HA_READ_KEY_EXACT;   }
	| GE     { $$=HA_READ_KEY_OR_NEXT; }
	| LE     { $$=HA_READ_KEY_OR_PREV; }
	| GT_SYM { $$=HA_READ_AFTER_KEY;   }
10089 10090
	| LT     { $$=HA_READ_BEFORE_KEY;  }
        ;
10091

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/* GRANT / REVOKE */

revoke:
10095
	REVOKE clear_privileges revoke_command
10096 10097 10098 10099
	{}
        ;

revoke_command:
10100
	grant_privileges ON opt_table grant_ident FROM grant_list
10101
	{
10102 10103 10104 10105 10106 10107 10108 10109 10110 10111 10112 10113 10114 10115 10116 10117 10118 10119 10120 10121 10122 10123 10124 10125 10126 10127 10128 10129
          LEX *lex= Lex;
	  lex->sql_command= SQLCOM_REVOKE;
          lex->type= 0;
        }
        |
        grant_privileges ON FUNCTION_SYM grant_ident FROM grant_list
        {
          LEX *lex= Lex;
          if (lex->columns.elements)
          {
            yyerror(ER(ER_SYNTAX_ERROR));
	    YYABORT;
          }
	  lex->sql_command= SQLCOM_REVOKE;
          lex->type= TYPE_ENUM_FUNCTION;
          
        }
	|
        grant_privileges ON PROCEDURE grant_ident FROM grant_list
        {
          LEX *lex= Lex;
          if (lex->columns.elements)
          {
            yyerror(ER(ER_SYNTAX_ERROR));
	    YYABORT;
          }
	  lex->sql_command= SQLCOM_REVOKE;
          lex->type= TYPE_ENUM_PROCEDURE;
10130
        }
10131
	|
10132
	ALL opt_privileges ',' GRANT OPTION FROM grant_list
10133 10134 10135
	{
	  Lex->sql_command = SQLCOM_REVOKE_ALL;
	}
10136
	;
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grant:
10139 10140 10141 10142 10143 10144
	GRANT clear_privileges grant_command
	{}
        ;

grant_command:
	grant_privileges ON opt_table grant_ident TO_SYM grant_list
10145
	require_clause grant_options
10146 10147 10148 10149 10150 10151 10152 10153 10154 10155 10156 10157 10158 10159 10160 10161 10162 10163 10164 10165 10166 10167 10168 10169 10170 10171 10172 10173 10174 10175 10176 10177
	{
          LEX *lex= Lex;
          lex->sql_command= SQLCOM_GRANT;
          lex->type= 0;
        }
        |
	grant_privileges ON FUNCTION_SYM grant_ident TO_SYM grant_list
	require_clause grant_options
	{
          LEX *lex= Lex;
          if (lex->columns.elements)
          {
            yyerror(ER(ER_SYNTAX_ERROR));
	    YYABORT;
          }
          lex->sql_command= SQLCOM_GRANT;
          lex->type= TYPE_ENUM_FUNCTION;
        }
        |
	grant_privileges ON PROCEDURE grant_ident TO_SYM grant_list
	require_clause grant_options
	{
          LEX *lex= Lex;
          if (lex->columns.elements)
          {
            yyerror(ER(ER_SYNTAX_ERROR));
	    YYABORT;
          }
          lex->sql_command= SQLCOM_GRANT;
          lex->type= TYPE_ENUM_PROCEDURE;
        }
        ;
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opt_table:
	/* Empty */
	| TABLE_SYM ;
        
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grant_privileges:
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	object_privilege_list { }
	| ALL opt_privileges
        { 
          Lex->all_privileges= 1; 
          Lex->grant= GLOBAL_ACLS;
        }
10190
        ;
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opt_privileges:
	/* empty */
	| PRIVILEGES
	;

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object_privilege_list:
	object_privilege
	| object_privilege_list ',' object_privilege;
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10201
object_privilege:
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	SELECT_SYM	{ Lex->which_columns = SELECT_ACL;} opt_column_list {}
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	| INSERT	{ Lex->which_columns = INSERT_ACL;} opt_column_list {}
	| UPDATE_SYM	{ Lex->which_columns = UPDATE_ACL; } opt_column_list {}
	| REFERENCES	{ Lex->which_columns = REFERENCES_ACL;} opt_column_list {}
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	| DELETE_SYM	{ Lex->grant |= DELETE_ACL;}
	| USAGE		{}
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	| INDEX_SYM	{ Lex->grant |= INDEX_ACL;}
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	| ALTER		{ Lex->grant |= ALTER_ACL;}
	| CREATE	{ Lex->grant |= CREATE_ACL;}
	| DROP		{ Lex->grant |= DROP_ACL;}
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	| EXECUTE_SYM	{ Lex->grant |= EXECUTE_ACL;}
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	| RELOAD	{ Lex->grant |= RELOAD_ACL;}
	| SHUTDOWN	{ Lex->grant |= SHUTDOWN_ACL;}
	| PROCESS	{ Lex->grant |= PROCESS_ACL;}
	| FILE_SYM	{ Lex->grant |= FILE_ACL;}
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	| GRANT OPTION  { Lex->grant |= GRANT_ACL;}
	| SHOW DATABASES { Lex->grant |= SHOW_DB_ACL;}
	| SUPER_SYM	{ Lex->grant |= SUPER_ACL;}
	| CREATE TEMPORARY TABLES { Lex->grant |= CREATE_TMP_ACL;}
	| LOCK_SYM TABLES   { Lex->grant |= LOCK_TABLES_ACL; }
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	| REPLICATION SLAVE  { Lex->grant |= REPL_SLAVE_ACL; }
	| REPLICATION CLIENT_SYM { Lex->grant |= REPL_CLIENT_ACL; }
	| CREATE VIEW_SYM { Lex->grant |= CREATE_VIEW_ACL; }
	| SHOW VIEW_SYM { Lex->grant |= SHOW_VIEW_ACL; }
10226 10227
	| CREATE ROUTINE_SYM { Lex->grant |= CREATE_PROC_ACL; }
	| ALTER ROUTINE_SYM { Lex->grant |= ALTER_PROC_ACL; }
10228
	| CREATE USER { Lex->grant |= CREATE_USER_ACL; }
10229
        | EVENT_SYM { Lex->grant |= EVENT_ACL;}
10230
        | TRIGGER_SYM { Lex->grant |= TRIGGER_ACL; }
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	;
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opt_and:
	/* empty */	{}
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	| AND_SYM	{}
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	;

require_list:
	 require_list_element opt_and require_list
	 | require_list_element
	 ;

require_list_element:
	SUBJECT_SYM TEXT_STRING
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	{
	  LEX *lex=Lex;
	  if (lex->x509_subject)
	  {
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	    my_error(ER_DUP_ARGUMENT, MYF(0), "SUBJECT");
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	    YYABORT;
	  }
	  lex->x509_subject=$2.str;
	}
	| ISSUER_SYM TEXT_STRING
	{
	  LEX *lex=Lex;
	  if (lex->x509_issuer)
	  {
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	    my_error(ER_DUP_ARGUMENT, MYF(0), "ISSUER");
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	    YYABORT;
	  }
	  lex->x509_issuer=$2.str;
	}
	| CIPHER_SYM TEXT_STRING
	{
	  LEX *lex=Lex;
	  if (lex->ssl_cipher)
	  {
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	    my_error(ER_DUP_ARGUMENT, MYF(0), "CIPHER");
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	    YYABORT;
	  }
	  lex->ssl_cipher=$2.str;
	}
	;
10276

10277
grant_ident:
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	'*'
	  {
10280
	    LEX *lex= Lex;
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            THD *thd= lex->thd;
            if (thd->copy_db_to(&lex->current_select->db, NULL))
              YYABORT;
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	    if (lex->grant == GLOBAL_ACLS)
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	      lex->grant = DB_ACLS & ~GRANT_ACL;
	    else if (lex->columns.elements)
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	    {
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	      my_message(ER_ILLEGAL_GRANT_FOR_TABLE,
                         ER(ER_ILLEGAL_GRANT_FOR_TABLE), MYF(0));
10290
	      YYABORT;
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	    }
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	  }
	| ident '.' '*'
	  {
10295
	    LEX *lex= Lex;
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10296
	    lex->current_select->db = $1.str;
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	    if (lex->grant == GLOBAL_ACLS)
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	      lex->grant = DB_ACLS & ~GRANT_ACL;
	    else if (lex->columns.elements)
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	    {
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	      my_message(ER_ILLEGAL_GRANT_FOR_TABLE,
                         ER(ER_ILLEGAL_GRANT_FOR_TABLE), MYF(0));
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	      YYABORT;
	    }
	  }
	| '*' '.' '*'
	  {
10308
	    LEX *lex= Lex;
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10309
	    lex->current_select->db = NULL;
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	    if (lex->grant == GLOBAL_ACLS)
	      lex->grant= GLOBAL_ACLS & ~GRANT_ACL;
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	    else if (lex->columns.elements)
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	    {
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	      my_message(ER_ILLEGAL_GRANT_FOR_TABLE,
                         ER(ER_ILLEGAL_GRANT_FOR_TABLE), MYF(0));
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	      YYABORT;
	    }
	  }
	| table_ident
	  {
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10321
	    LEX *lex=Lex;
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	    if (!lex->current_select->add_table_to_list(lex->thd, $1,NULL,0))
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	      YYABORT;
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	    if (lex->grant == GLOBAL_ACLS)
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	      lex->grant =  TABLE_ACLS & ~GRANT_ACL;
10326 10327
	  }
          ;
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user_list:
10331 10332 10333 10334 10335 10336 10337 10338 10339 10340
	user  { if (Lex->users_list.push_back($1)) YYABORT;}
	| user_list ',' user
	  {
	    if (Lex->users_list.push_back($3))
	      YYABORT;
	  }
	;


grant_list:
10341
	grant_user  { if (Lex->users_list.push_back($1)) YYABORT;}
10342
	| grant_list ',' grant_user
10343 10344 10345 10346 10347
	  {
	    if (Lex->users_list.push_back($3))
	      YYABORT;
	  }
	;
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grant_user:
	user IDENTIFIED_SYM BY TEXT_STRING
	{
	   $$=$1; $1->password=$4;
	   if ($4.length)
	   {
10356
             if (YYTHD->variables.old_passwords)
10357 10358 10359 10360 10361 10362 10363 10364 10365 10366 10367 10368 10369 10370 10371 10372 10373
             {
               char *buff= 
                 (char *) YYTHD->alloc(SCRAMBLED_PASSWORD_CHAR_LENGTH_323+1);
               if (buff)
                 make_scrambled_password_323(buff, $4.str);
               $1->password.str= buff;
               $1->password.length= SCRAMBLED_PASSWORD_CHAR_LENGTH_323;
             }
             else
             {
               char *buff= 
                 (char *) YYTHD->alloc(SCRAMBLED_PASSWORD_CHAR_LENGTH+1);
               if (buff)
                 make_scrambled_password(buff, $4.str);
               $1->password.str= buff;
               $1->password.length= SCRAMBLED_PASSWORD_CHAR_LENGTH;
             }
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	  }
	}
	| user IDENTIFIED_SYM BY PASSWORD TEXT_STRING
10377
	  { $$= $1; $1->password= $5; }
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10378
	| user
10379
	  { $$= $1; $1->password= null_lex_str; }
10380
        ;
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opt_column_list:
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	/* empty */
	{
	  LEX *lex=Lex;
	  lex->grant |= lex->which_columns;
	}
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	| '(' column_list ')';
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column_list:
	column_list ',' column_list_id
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	| column_list_id;
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column_list_id:
	ident
	{
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	  String *new_str = new (YYTHD->mem_root) String((const char*) $1.str,$1.length,system_charset_info);
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	  List_iterator <LEX_COLUMN> iter(Lex->columns);
	  class LEX_COLUMN *point;
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	  LEX *lex=Lex;
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	  while ((point=iter++))
	  {
10404 10405
	    if (!my_strcasecmp(system_charset_info,
                               point->column.ptr(), new_str->ptr()))
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		break;
	  }
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	  lex->grant_tot_col|= lex->which_columns;
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	  if (point)
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	    point->rights |= lex->which_columns;
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	  else
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	    lex->columns.push_back(new LEX_COLUMN (*new_str,lex->which_columns));
10413 10414
	}
        ;
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require_clause: /* empty */
10418
        | REQUIRE_SYM require_list
10419 10420 10421
          {
            Lex->ssl_type=SSL_TYPE_SPECIFIED;
          }
10422
        | REQUIRE_SYM SSL_SYM
10423 10424 10425
          {
            Lex->ssl_type=SSL_TYPE_ANY;
          }
10426
        | REQUIRE_SYM X509_SYM
10427 10428 10429 10430 10431 10432 10433
          {
            Lex->ssl_type=SSL_TYPE_X509;
          }
	| REQUIRE_SYM NONE_SYM
	  {
	    Lex->ssl_type=SSL_TYPE_NONE;
	  }
10434
          ;
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grant_options:
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	/* empty */ {}
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	| WITH grant_option_list;
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grant_option_list:
	grant_option_list grant_option {}
10442 10443
	| grant_option {}
        ;
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grant_option:
	GRANT OPTION { Lex->grant |= GRANT_ACL;}
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        | MAX_QUERIES_PER_HOUR ulong_num
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        {
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	  LEX *lex=Lex;
	  lex->mqh.questions=$2;
	  lex->mqh.specified_limits|= USER_RESOURCES::QUERIES_PER_HOUR;
10452
	}
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10453
        | MAX_UPDATES_PER_HOUR ulong_num
10454
        {
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	  LEX *lex=Lex;
	  lex->mqh.updates=$2;
	  lex->mqh.specified_limits|= USER_RESOURCES::UPDATES_PER_HOUR;
10458
	}
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10459
        | MAX_CONNECTIONS_PER_HOUR ulong_num
10460
        {
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	  LEX *lex=Lex;
	  lex->mqh.conn_per_hour= $2;
	  lex->mqh.specified_limits|= USER_RESOURCES::CONNECTIONS_PER_HOUR;
10464
	}
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        | MAX_USER_CONNECTIONS_SYM ulong_num
10466
        {
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	  LEX *lex=Lex;
          lex->mqh.user_conn= $2;
          lex->mqh.specified_limits|= USER_RESOURCES::USER_CONNECTIONS;
10470 10471
	}
        ;
10472

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begin:
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10474 10475 10476 10477 10478 10479 10480
	BEGIN_SYM  
        {
	  LEX *lex=Lex;
          lex->sql_command = SQLCOM_BEGIN;
          lex->start_transaction_opt= 0;
        }
        opt_work {}
10481
	;
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opt_work:
	/* empty */ {}
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	| WORK_SYM  {}
10486
        ;
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opt_chain:
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10489
	/* empty */ { $$= (YYTHD->variables.completion_type == 1); }
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	| AND_SYM NO_SYM CHAIN_SYM	{ $$=0; }
	| AND_SYM CHAIN_SYM		{ $$=1; }
	;

opt_release:
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	/* empty */ { $$= (YYTHD->variables.completion_type == 2); }
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	| RELEASE_SYM 			{ $$=1; }
	| NO_SYM RELEASE_SYM 		{ $$=0; }
	;
	
opt_savepoint:
	/* empty */	{}
	| SAVEPOINT_SYM {}
	;

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commit:
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10506
	COMMIT_SYM opt_work opt_chain opt_release
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	{
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	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_COMMIT;
	  lex->tx_chain= $3; 
	  lex->tx_release= $4;
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	}
	;
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rollback:
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	ROLLBACK_SYM opt_work opt_chain opt_release
10517
	{
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	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_ROLLBACK;
	  lex->tx_chain= $3; 
	  lex->tx_release= $4;
10522
	}
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	| ROLLBACK_SYM opt_work
	  TO_SYM opt_savepoint ident
10525
	{
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	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_ROLLBACK_TO_SAVEPOINT;
	  lex->ident= $5;
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	}
	;

10532 10533 10534
savepoint:
	SAVEPOINT_SYM ident
	{
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	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_SAVEPOINT;
	  lex->ident= $2;
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	}
	;

release:
	RELEASE_SYM SAVEPOINT_SYM ident
	{
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10544 10545 10546
	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_RELEASE_SAVEPOINT;
	  lex->ident= $3;
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	}
	;
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10549
  
10550
/*
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10551
   UNIONS : glue selects together
10552 10553 10554
*/


10555
union_clause:
10556
	/* empty */ {}
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10557 10558
	| union_list
	;
10559 10560

union_list:
10561
	UNION_SYM union_option
10562 10563 10564 10565 10566
	{
	  LEX *lex=Lex;
	  if (lex->exchange)
	  {
	    /* Only the last SELECT can have  INTO...... */
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10567
	    my_error(ER_WRONG_USAGE, MYF(0), "UNION", "INTO");
10568
	    YYABORT;
10569
	  }
10570
	  if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE)
10571
	  {
10572
            yyerror(ER(ER_SYNTAX_ERROR));
10573 10574
	    YYABORT;
	  }
10575 10576
          /* This counter shouldn't be incremented for UNION parts */
          Lex->nest_level--;
10577
	  if (mysql_new_select(lex, 0))
10578
	    YYABORT;
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10579
          mysql_init_select(lex);
10580
	  lex->current_select->linkage=UNION_TYPE;
10581 10582 10583
          if ($2) /* UNION DISTINCT - remember position */
            lex->current_select->master_unit()->union_distinct=
                                                      lex->current_select;
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	}
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	select_init
        {
10587 10588 10589 10590
          /*
	    Remove from the name resolution context stack the context of the
            last select in the union.
	  */
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10591 10592
          Lex->pop_context();
        }
10593
	;
10594 10595

union_opt:
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10596 10597 10598
	/* Empty */ { $$= 0; }
	| union_list { $$= 1; }
	| union_order_or_limit { $$= 1; }
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	;
10600

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union_order_or_limit:
10602
	  {
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10603
	    THD *thd= YYTHD;
10604
	    LEX *lex= thd->lex;
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10605
	    DBUG_ASSERT(lex->current_select->linkage != GLOBAL_OPTIONS_TYPE);
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10606
	    SELECT_LEX *sel= lex->current_select;
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10607
	    SELECT_LEX_UNIT *unit= sel->master_unit();
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10608
	    SELECT_LEX *fake= unit->fake_select_lex;
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10609 10610 10611 10612 10613 10614
	    if (fake)
	    {
	      unit->global_parameters= fake;
	      fake->no_table_names_allowed= 1;
	      lex->current_select= fake;
	    }
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	    thd->where= "global ORDER clause";
10616
	  }
10617
	order_or_limit
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          {
	    THD *thd= YYTHD;
10620
	    thd->lex->current_select->no_table_names_allowed= 0;
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	    thd->where= "";
          }
10623 10624 10625
	;

order_or_limit:
10626 10627
	order_clause opt_limit_clause_init
	| limit_clause
10628
	;
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10629 10630

union_option:
10631 10632 10633 10634
	/* empty */ { $$=1; }
	| DISTINCT  { $$=1; }
	| ALL       { $$=0; }
        ;
10635

10636 10637 10638 10639 10640 10641 10642 10643 10644 10645 10646 10647 10648 10649 10650 10651 10652 10653 10654 10655 10656 10657 10658 10659
subselect:
        SELECT_SYM subselect_start subselect_init subselect_end
        {
          $$= $3;
        }
        | '(' subselect_start subselect ')'
          {
            LEX *lex= Lex;
	    THD *thd= YYTHD;
            /*
              note that a local variable can't be used for
              $3 as it's used in local variable construction
              and some compilers can't guarnatee the order
              in which the local variables are initialized.
            */
            List_iterator<Item> it($3->item_list);
            Item *item;
            /*
              we must fill the items list for the "derived table".
            */
            while ((item= it++))
              add_item_to_list(thd, item);
          }
          union_clause subselect_end { $$= $3; };
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10660

10661
subselect_init:
10662
  select_init2
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10663
  {
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    $$= Lex->current_select->master_unit()->first_select();
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  };

10667
subselect_start:
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10668
	{
10669
	  LEX *lex=Lex;
10670
          if (!lex->expr_allows_subselect)
10671 10672
	  {
            yyerror(ER(ER_SYNTAX_ERROR));
10673 10674
	    YYABORT;
	  }
10675 10676 10677 10678 10679 10680 10681
          /* 
            we are making a "derived table" for the parenthesis
            as we need to have a lex level to fit the union 
            after the parenthesis, e.g. 
            (SELECT .. ) UNION ...  becomes 
            SELECT * FROM ((SELECT ...) UNION ...)
          */
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10682 10683 10684
	  if (mysql_new_select(Lex, 1))
	    YYABORT;
	};
10685 10686

subselect_end:
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	{
	  LEX *lex=Lex;
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10689
          lex->pop_context();
10690
          SELECT_LEX *child= lex->current_select;
10691
	  lex->current_select = lex->current_select->return_after_parsing();
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10692
          lex->nest_level--;
10693
          lex->current_select->n_child_sum_items += child->n_sum_items;
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	};
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10695

10696 10697 10698 10699 10700 10701
/**************************************************************************

 CREATE VIEW | TRIGGER | PROCEDURE statements.

**************************************************************************/

10702 10703
view_or_trigger_or_sp_or_event:
	definer view_or_trigger_or_sp_or_event_tail
10704 10705 10706 10707 10708
	{}
	| view_replace_or_algorithm definer view_tail
	{}
	;

10709
view_or_trigger_or_sp_or_event_tail:
10710 10711 10712 10713 10714 10715
	view_tail
	{}
	| trigger_tail
	{}
	| sp_tail
	{}
10716 10717
	| event_tail
	{}
10718 10719 10720 10721 10722 10723 10724 10725
	;

/**************************************************************************

 DEFINER clause support.

**************************************************************************/

10726
definer:
10727
	/* empty */
10728
	{
10729 10730 10731 10732 10733 10734 10735 10736
          /*
            We have to distinguish missing DEFINER-clause from case when
            CURRENT_USER specified as definer explicitly in order to properly
            handle CREATE TRIGGER statements which come to replication thread
            from older master servers (i.e. to create non-suid trigger in this
            case).
           */
          YYTHD->lex->definer= 0;
10737
	}
10738
	| DEFINER_SYM EQ user
10739
	{
10740
	  YYTHD->lex->definer= get_current_user(YYTHD, $3);
10741 10742 10743 10744 10745
	}
	;

/**************************************************************************

10746
 CREATE VIEW statement parts.
10747 10748 10749 10750 10751 10752 10753 10754 10755 10756 10757 10758 10759 10760 10761 10762 10763 10764 10765 10766 10767 10768 10769 10770 10771 10772 10773 10774 10775 10776 10777 10778 10779 10780 10781

**************************************************************************/

view_replace_or_algorithm:
	view_replace
	{}
	| view_replace view_algorithm
	{}
	| view_algorithm
	{}
	;

view_replace:
	OR_SYM REPLACE
	{ Lex->create_view_mode= VIEW_CREATE_OR_REPLACE; }
	;

view_algorithm:
	ALGORITHM_SYM EQ UNDEFINED_SYM
	{ Lex->create_view_algorithm= VIEW_ALGORITHM_UNDEFINED; }
	| ALGORITHM_SYM EQ MERGE_SYM
	{ Lex->create_view_algorithm= VIEW_ALGORITHM_MERGE; }
	| ALGORITHM_SYM EQ TEMPTABLE_SYM
	{ Lex->create_view_algorithm= VIEW_ALGORITHM_TMPTABLE; }
	;

view_algorithm_opt:
	/* empty */
	{ Lex->create_view_algorithm= VIEW_ALGORITHM_UNDEFINED; }
	| view_algorithm
	{}
	;

view_suid:
	/* empty */
10782
	{ Lex->create_view_suid= VIEW_SUID_DEFAULT; }
10783
	| SQL_SYM SECURITY_SYM DEFINER_SYM
10784
	{ Lex->create_view_suid= VIEW_SUID_DEFINER; }
10785
	| SQL_SYM SECURITY_SYM INVOKER_SYM
10786
	{ Lex->create_view_suid= VIEW_SUID_INVOKER; }
10787 10788 10789 10790 10791 10792 10793 10794 10795
	;

view_tail:
	view_suid VIEW_SYM table_ident
	{
	  THD *thd= YYTHD;
	  LEX *lex= thd->lex;
	  lex->sql_command= SQLCOM_CREATE_VIEW;
	  /* first table in list is target VIEW name */
10796
	  if (!lex->select_lex.add_table_to_list(thd, $3, NULL, TL_OPTION_UPDATING))
10797 10798 10799 10800 10801 10802 10803 10804 10805
	    YYABORT;
	}
	view_list_opt AS view_select view_check_option
	{}
	;

view_list_opt:
	/* empty */
	{}
10806 10807 10808 10809 10810 10811 10812 10813 10814 10815 10816 10817 10818 10819 10820 10821
	| '(' view_list ')'
	;

view_list:
	ident 
	  {
	    Lex->view_list.push_back((LEX_STRING*)
				     sql_memdup(&$1, sizeof(LEX_STRING)));
	  }
	| view_list ',' ident
	  {
	    Lex->view_list.push_back((LEX_STRING*)
				     sql_memdup(&$3, sizeof(LEX_STRING)));
	  }
	;

10822
view_select:
10823 10824 10825 10826 10827 10828 10829 10830 10831 10832 10833 10834 10835 10836 10837 10838 10839 10840
        {
          LEX *lex= Lex;
          lex->parsing_options.allows_variable= FALSE;
          lex->parsing_options.allows_select_into= FALSE;
          lex->parsing_options.allows_select_procedure= FALSE;
          lex->parsing_options.allows_derived= FALSE;
        }        
        view_select_aux
        {
          LEX *lex= Lex;
          lex->parsing_options.allows_variable= TRUE;
          lex->parsing_options.allows_select_into= TRUE;
          lex->parsing_options.allows_select_procedure= TRUE;
          lex->parsing_options.allows_derived= TRUE;
        }
        ;

view_select_aux:
10841 10842
	SELECT_SYM remember_name select_init2
	{
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          THD *thd=YYTHD;
          LEX *lex= thd->lex;
          char *stmt_beg= (lex->sphead ?
                           (char *)lex->sphead->m_tmp_query :
                           thd->query);
	  lex->create_view_select_start= $2 - stmt_beg;
10849 10850 10851
	}
	| '(' remember_name select_paren ')' union_opt
	{
10852 10853 10854 10855 10856 10857
          THD *thd=YYTHD;
          LEX *lex= thd->lex;
          char *stmt_beg= (lex->sphead ?
                           (char *)lex->sphead->m_tmp_query :
                           thd->query);
	  lex->create_view_select_start= $2 - stmt_beg;
10858
	}
10859 10860
	;

10861
view_check_option:
10862
	/* empty */
10863 10864 10865 10866 10867 10868 10869
	{ Lex->create_view_check= VIEW_CHECK_NONE; }
	| WITH CHECK_SYM OPTION
	{ Lex->create_view_check= VIEW_CHECK_CASCADED; }
	| WITH CASCADED CHECK_SYM OPTION
	{ Lex->create_view_check= VIEW_CHECK_CASCADED; }
	| WITH LOCAL_SYM CHECK_SYM OPTION
	{ Lex->create_view_check= VIEW_CHECK_LOCAL; }
10870
	;
10871

10872 10873 10874 10875 10876 10877 10878
/**************************************************************************

 CREATE TRIGGER statement parts.

**************************************************************************/

trigger_tail:
10879
	TRIGGER_SYM remember_name sp_name trg_action_time trg_event
10880
	ON remember_name table_ident FOR_SYM remember_name EACH_SYM ROW_SYM
10881 10882 10883
	{
	  LEX *lex= Lex;
	  sp_head *sp;
10884

10885
	  if (lex->sphead)
10886
	  {
10887 10888
	    my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "TRIGGER");
	    YYABORT;
10889
	  }
10890

10891 10892 10893 10894
	  if (!(sp= new sp_head()))
	    YYABORT;
	  sp->reset_thd_mem_root(YYTHD);
	  sp->init(lex);
10895
          sp->init_sp_name(YYTHD, $3);
10896
	  lex->stmt_definition_begin= $2;
10897
          lex->ident.str= $7;
10898
          lex->ident.length= $10 - $7;
10899

10900 10901 10902 10903 10904 10905 10906 10907
	  sp->m_type= TYPE_ENUM_TRIGGER;
	  lex->sphead= sp;
	  lex->spname= $3;
	  /*
	    We have to turn of CLIENT_MULTI_QUERIES while parsing a
	    stored procedure, otherwise yylex will chop it into pieces
	    at each ';'.
	  */
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10908
	  $<ulong_num>$= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
10909
	  YYTHD->client_capabilities &= ~CLIENT_MULTI_QUERIES;
10910

10911 10912 10913
	  bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
	  lex->sphead->m_chistics= &lex->sp_chistics;
	  lex->sphead->m_body_begin= lex->ptr;
10914 10915
          while (my_isspace(system_charset_info, lex->sphead->m_body_begin[0]))
            ++lex->sphead->m_body_begin;
10916 10917 10918 10919 10920
	}
	sp_proc_stmt
	{
	  LEX *lex= Lex;
	  sp_head *sp= lex->sphead;
10921

10922
	  lex->sql_command= SQLCOM_CREATE_TRIGGER;
10923
	  sp->init_strings(YYTHD, lex);
10924
	  /* Restore flag if it was cleared above */
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10925

10926
	  YYTHD->client_capabilities |= $<ulong_num>13;
10927
	  sp->restore_thd_mem_root(YYTHD);
10928

10929 10930
	  if (sp->is_not_allowed_in_function("trigger"))
	      YYABORT;
10931

10932 10933 10934 10935 10936
	  /*
	    We have to do it after parsing trigger body, because some of
	    sp_proc_stmt alternatives are not saving/restoring LEX, so
	    lex->query_tables can be wiped out.
	  */
10937
	  if (!lex->select_lex.add_table_to_list(YYTHD, $8,
10938 10939
	                                         (LEX_STRING*) 0,
	                                         TL_OPTION_UPDATING,
10940
                                                 TL_IGNORE))
10941 10942
	    YYABORT;
	}
10943 10944
	;

10945 10946 10947 10948 10949 10950 10951 10952 10953 10954 10955 10956 10957 10958 10959 10960 10961 10962 10963 10964 10965 10966 10967 10968 10969 10970
/**************************************************************************

 CREATE FUNCTION | PROCEDURE statements parts.

**************************************************************************/

sp_tail:
	udf_func_type remember_name FUNCTION_SYM sp_name
	{
	  LEX *lex=Lex;
	  lex->udf.type= $1;
	  lex->stmt_definition_begin= $2;
	  lex->spname= $4;
	}
	create_function_tail
	{}
	| PROCEDURE remember_name sp_name
	{
	  LEX *lex= Lex;
	  sp_head *sp;

	  if (lex->sphead)
	  {
	    my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "PROCEDURE");
	    YYABORT;
	  }
10971

10972
	  lex->stmt_definition_begin= $2;
10973

10974 10975 10976 10977
	  /* Order is important here: new - reset - init */
	  sp= new sp_head();
	  sp->reset_thd_mem_root(YYTHD);
	  sp->init(lex);
10978
          sp->init_sp_name(YYTHD, $3);
10979 10980 10981 10982 10983 10984 10985 10986

	  sp->m_type= TYPE_ENUM_PROCEDURE;
	  lex->sphead= sp;
	  /*
	   * We have to turn of CLIENT_MULTI_QUERIES while parsing a
	   * stored procedure, otherwise yylex will chop it into pieces
	   * at each ';'.
	   */
10987
          $<ulong_num>$= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
10988 10989 10990 10991 10992 10993 10994 10995 10996 10997 10998 10999 11000 11001 11002 11003 11004 11005 11006 11007 11008 11009 11010 11011 11012 11013 11014 11015
	  YYTHD->client_capabilities &= (~CLIENT_MULTI_QUERIES);
	}
        '('
	{
	  LEX *lex= Lex;

	  lex->sphead->m_param_begin= lex->tok_start+1;
	}
	sp_pdparam_list
	')'
	{
	  LEX *lex= Lex;

	  lex->sphead->m_param_end= lex->tok_start;
	  bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
	}
	sp_c_chistics
	{
	  LEX *lex= Lex;

	  lex->sphead->m_chistics= &lex->sp_chistics;
	  lex->sphead->m_body_begin= lex->tok_start;
	}
	sp_proc_stmt
	{
	  LEX *lex= Lex;
	  sp_head *sp= lex->sphead;

11016
	  sp->init_strings(YYTHD, lex);
11017
	  lex->sql_command= SQLCOM_CREATE_PROCEDURE;
11018 11019 11020 11021 11022 11023
          /*
            Restore flag if it was cleared above
            Be careful with counting. the block where we save the value
            is $4.
          */
          YYTHD->client_capabilities |= $<ulong_num>4;
11024 11025 11026 11027
	  sp->restore_thd_mem_root(YYTHD);
	}
	;

11028
/*************************************************************************/
11029

11030 11031
xa: XA_SYM begin_or_start xid opt_join_or_resume
      {
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11032
        Lex->sql_command = SQLCOM_XA_START;
11033
      }
11034
    | XA_SYM END xid opt_suspend
11035
      {
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11036
        Lex->sql_command = SQLCOM_XA_END;
11037 11038 11039
      }
    | XA_SYM PREPARE_SYM xid
      {
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11040
        Lex->sql_command = SQLCOM_XA_PREPARE;
11041 11042 11043
      }
    | XA_SYM COMMIT_SYM xid opt_one_phase
      {
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11044
        Lex->sql_command = SQLCOM_XA_COMMIT;
11045 11046 11047
      }
    | XA_SYM ROLLBACK_SYM xid
      {
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11048
        Lex->sql_command = SQLCOM_XA_ROLLBACK;
11049 11050 11051
      }
    | XA_SYM RECOVER_SYM
      {
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11052
        Lex->sql_command = SQLCOM_XA_RECOVER;
11053 11054 11055
      }
    ;

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11056 11057
xid: text_string
     {
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11058
       YYERROR_UNLESS($1->length() <= MAXGTRIDSIZE);
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11059 11060 11061 11062 11063 11064
       if (!(Lex->xid=(XID *)YYTHD->alloc(sizeof(XID))))
         YYABORT;
       Lex->xid->set(1L, $1->ptr(), $1->length(), 0, 0);
     }
     | text_string ',' text_string
     {
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11065
       YYERROR_UNLESS($1->length() <= MAXGTRIDSIZE && $3->length() <= MAXBQUALSIZE);
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11066 11067 11068 11069 11070 11071
       if (!(Lex->xid=(XID *)YYTHD->alloc(sizeof(XID))))
         YYABORT;
       Lex->xid->set(1L, $1->ptr(), $1->length(), $3->ptr(), $3->length());
     }
     | text_string ',' text_string ',' ulong_num
     {
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11072
       YYERROR_UNLESS($1->length() <= MAXGTRIDSIZE && $3->length() <= MAXBQUALSIZE);
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11073 11074 11075 11076 11077
       if (!(Lex->xid=(XID *)YYTHD->alloc(sizeof(XID))))
         YYABORT;
       Lex->xid->set($5, $1->ptr(), $1->length(), $3->ptr(), $3->length());
     }
     ;
11078 11079 11080 11081 11082 11083 11084 11085 11086 11087 11088 11089 11090 11091 11092 11093

begin_or_start:   BEGIN_SYM {}
    |             START_SYM {}
    ;

opt_join_or_resume:
    /* nothing */           { Lex->xa_opt=XA_NONE;        }
    | JOIN_SYM              { Lex->xa_opt=XA_JOIN;        }
    | RESUME_SYM            { Lex->xa_opt=XA_RESUME;      }
    ;

opt_one_phase:
    /* nothing */           { Lex->xa_opt=XA_NONE;        }
    | ONE_SYM PHASE_SYM     { Lex->xa_opt=XA_ONE_PHASE;   }
    ;

11094
opt_suspend:
11095 11096
    /* nothing */           { Lex->xa_opt=XA_NONE;        }
    | SUSPEND_SYM           { Lex->xa_opt=XA_SUSPEND;     }
11097 11098 11099 11100 11101
      opt_migrate
    ;

opt_migrate:
    /* nothing */           { }
11102 11103 11104
    | FOR_SYM MIGRATE_SYM   { Lex->xa_opt=XA_FOR_MIGRATE; }
    ;

11105
install:
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11106
  INSTALL_SYM PLUGIN_SYM ident SONAME_SYM TEXT_STRING_sys
11107 11108 11109 11110 11111 11112
  {
    LEX *lex= Lex;
    lex->sql_command= SQLCOM_INSTALL_PLUGIN;
    lex->comment= $3;
    lex->ident= $5;
  };
11113

11114
uninstall:
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11115
  UNINSTALL_SYM PLUGIN_SYM ident
11116 11117 11118 11119 11120
  {
    LEX *lex= Lex;
    lex->sql_command= SQLCOM_UNINSTALL_PLUGIN;
    lex->comment= $3;
  };