sql_yacc.yy 286 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.h"
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#include <myisam.h>
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#include <myisammrg.h>
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typedef struct p_elem_val
{ 
  longlong value;
  bool null_value;
} part_elem_value;

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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" */
inline Item *is_truth_value(Item *A, bool v1, bool v2)
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{
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  return new Item_func_if(create_func_ifnull(A,
	new Item_int((char *) (v2 ? "TRUE" : "FALSE"), v2, 1)),
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	new Item_int((char *) (v1 ? "TRUE" : "FALSE"), v1, 1),
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	new Item_int((char *) (v1 ? "FALSE" : "TRUE"),!v1, 1));
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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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%token  TRIGGER_SYM
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%token  TRIGGERS_SYM
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%token  TRIM
%token  TRUE_SYM
%token  TRUNCATE_SYM
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%token  TYPES_SYM
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%token  TYPE_SYM
%token  UDF_RETURNS_SYM
%token  ULONGLONG_NUM
%token  UNCOMMITTED_SYM
%token  UNDEFINED_SYM
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%token  UNDO_BUFFER_SIZE_SYM
%token  UNDOFILE_SYM
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%token  UNDERSCORE_CHARSET
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%token  UNDO_SYM
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%token  UNICODE_SYM
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%token  UNINSTALL_SYM
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%token  UNION_SYM
%token  UNIQUE_SYM
%token  UNIQUE_USERS
%token  UNIX_TIMESTAMP
%token  UNKNOWN_SYM
%token  UNLOCK_SYM
%token  UNSIGNED
%token  UNTIL_SYM
%token  UPDATE_SYM
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%token  UPGRADE_SYM
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%token  USAGE
%token  USER
%token  USE_FRM
%token  USE_SYM
%token  USING
%token  UTC_DATE_SYM
%token  UTC_TIMESTAMP_SYM
%token  UTC_TIME_SYM
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%token  VAR_SAMP_SYM
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%token  VALUES
%token  VALUE_SYM
%token  VARBINARY
%token  VARCHAR
%token  VARIABLES
%token  VARIANCE_SYM
%token  VARYING
%token  VIEW_SYM
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%token  WAIT_SYM
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%token  WARNINGS
%token  WEEK_SYM
%token  WHEN_SYM
%token  WHERE
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%token  WHILE_SYM
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%token  WITH
%token  WORK_SYM
%token  WRITE_SYM
%token  X509_SYM
%token  XA_SYM
%token  XOR
%token  YEARWEEK
%token  YEAR_MONTH_SYM
%token  YEAR_SYM
%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 merge_insert_types
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%type <ulonglong_number>
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	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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	bool_term bool_factor bool_test bool_pri 
	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 singlerow_subselect singlerow_subselect_init
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	exists_subselect exists_subselect_init 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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%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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%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> FUNC_ARG0 FUNC_ARG1 FUNC_ARG2 FUNC_ARG3 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> in_subselect in_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 view_or_trigger_or_sp_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 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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          {
            LEX *lex=Lex;

            if (lex->et)
            {
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              /*
                Recursive events are not possible because recursive SPs
                are not also possible. lex->sp_head is not stacked.
              */
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              // ToDo Andrey : Change the error message
              my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "EVENT");
              YYABORT;
            }

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            lex->create_info.options= $3;
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            if (!(lex->et= new(YYTHD->mem_root) Event_timed())) // implicitly calls Event_timed::init()
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              YYABORT;
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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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            if (!lex->et_compile_phase)
            {
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              lex->et->init_name(YYTHD, $4);
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              lex->et->init_definer(YYTHD);
            }
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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
              $1 - CREATE
              $2 - EVENT_SYM
              $3 - opt_if_not_exists
              $4 - sp_name
              $5 - the block above
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            */
            YYTHD->client_capabilities |= $<ulong_num>5;
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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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	| CREATE
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	  {
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            Lex->create_view_mode= VIEW_CREATE_NEW;
            Lex->create_view_algorithm= VIEW_ALGORITHM_UNDEFINED;
            Lex->create_view_suid= TRUE;
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	  }
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	  view_or_trigger_or_sp
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	  {}
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	| CREATE USER clear_privileges grant_list
	  {
	    Lex->sql_command = SQLCOM_CREATE_USER;
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          }
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	| CREATE LOGFILE_SYM GROUP logfile_group_info 
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          {
            LEX *lex= Lex;
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            lex->alter_tablespace_info->ts_cmd_type= CREATE_LOGFILE_GROUP;
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          }
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        | CREATE TABLESPACE tablespace_info
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          {
            LEX *lex= Lex;
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            lex->alter_tablespace_info->ts_cmd_type= CREATE_TABLESPACE;
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          }
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	;
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ev_schedule_time: EVERY_SYM expr interval
	  {
            LEX *lex=Lex;
            if (!lex->et_compile_phase)
            {
              switch (lex->et->init_interval(YYTHD , $2, $3)) {
              case EVEX_PARSE_ERROR:
                yyerror(ER(ER_SYNTAX_ERROR));
                YYABORT;
                break;
              case EVEX_BAD_PARAMS:
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                my_error(ER_EVENT_INTERVAL_NOT_POSITIVE_OR_TOO_BIG, MYF(0));
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              case EVEX_MICROSECOND_UNSUP:
                my_error(ER_NOT_SUPPORTED_YET, MYF(0), "MICROSECOND");
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                YYABORT;
                break;
              }
            }
          }
          ev_starts
          ev_ends
        | AT_SYM expr
          {
            LEX *lex=Lex;
            if (!lex->et_compile_phase)
            {
              switch (lex->et->init_execute_at(YYTHD, $2)) {
              case EVEX_PARSE_ERROR:
                yyerror(ER(ER_SYNTAX_ERROR));
                YYABORT;  
                break;
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              case ER_WRONG_VALUE:
                {
                  char buff[120];
                  String str(buff,(uint32) sizeof(buff), system_charset_info);
                  String *str2= $2->val_str(&str);
                  my_error(ER_WRONG_VALUE, MYF(0), "AT",
                           str2? str2->c_ptr():"NULL");
                  YYABORT;
                  break;
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                }
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              case EVEX_BAD_PARAMS:
                my_error(ER_EVENT_EXEC_TIME_IN_THE_PAST, MYF(0));
                YYABORT;
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                break;
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              }
            }
          }
      ;
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opt_ev_status: /* empty */ { $$= 0; }
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        | ENABLE_SYM
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          {
            LEX *lex=Lex;
            if (!lex->et_compile_phase)
              lex->et->status= MYSQL_EVENT_ENABLED;
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            $$= 1;
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          }
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        | DISABLE_SYM
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          {
            LEX *lex=Lex;
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            if (!lex->et_compile_phase)
              lex->et->status= MYSQL_EVENT_DISABLED;
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            $$= 1;
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          }
      ;

ev_starts: /* empty */
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          {
            Lex->et->init_starts(YYTHD, new Item_func_now_local());
          }
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        | STARTS_SYM expr
          {
            LEX *lex= Lex;
            if (!lex->et_compile_phase)
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            {
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              switch (lex->et->init_starts(YYTHD, $2)) {
              case EVEX_PARSE_ERROR:
                yyerror(ER(ER_SYNTAX_ERROR));
                YYABORT;
                break;
              case EVEX_BAD_PARAMS:
                {
                  char buff[20];
                  String str(buff,(uint32) sizeof(buff), system_charset_info);
                  String *str2= $2->val_str(&str);
                  my_error(ER_WRONG_VALUE, MYF(0), "STARTS", str2? str2->c_ptr():
                                                                   NULL);
                  YYABORT;
                  break;
                }
              }
            }
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          }
      ;

ev_ends: /* empty */
        | ENDS_SYM expr
          {
            LEX *lex= Lex;
            if (!lex->et_compile_phase)
            {
              switch (lex->et->init_ends(YYTHD, $2)) {
              case EVEX_PARSE_ERROR:
                yyerror(ER(ER_SYNTAX_ERROR));
                YYABORT;
                break;
              case EVEX_BAD_PARAMS:
                my_error(ER_EVENT_ENDS_BEFORE_STARTS, MYF(0));
                YYABORT;
                break;
              }
            }
          }
      ;

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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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          {
            LEX *lex=Lex;
            if (!lex->et_compile_phase)
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              lex->et->on_completion= MYSQL_EVENT_ON_COMPLETION_PRESERVE;
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            $$= 1;
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          }
        | ON COMPLETION_SYM NOT_SYM PRESERVE_SYM
          {
            LEX *lex=Lex;
            if (!lex->et_compile_phase)
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              lex->et->on_completion= MYSQL_EVENT_ON_COMPLETION_DROP;
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            $$= 1;
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          }
      ;
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opt_ev_comment: /* empty */ { $$= 0; }
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        | COMMENT_SYM TEXT_STRING_sys
          {
            LEX *lex= Lex;
            if (!lex->et_compile_phase)
            {
              lex->comment= $2;
              lex->et->init_comment(YYTHD, &$2);
            }
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            $$= 1;
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          }
      ;

ev_sql_stmt:
          {
            LEX *lex= Lex;
            sp_head *sp;
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            $<sphead>$= lex->sphead;
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            if (!lex->sphead)
            {
              if (!(sp= new sp_head()))
                YYABORT;
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              sp->reset_thd_mem_root(YYTHD);
              sp->init(lex);
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              sp->m_type= TYPE_ENUM_PROCEDURE;
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              lex->sphead= sp;
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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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            if (!lex->et_compile_phase)
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              lex->et->body_begin= lex->ptr;
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          }
          ev_sql_stmt_inner
          {
            LEX *lex=Lex;
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            if (!$<sphead>1)
            {
              sp_head *sp= lex->sphead;
              // return back to the original memory root ASAP
              sp->init_strings(YYTHD, lex, NULL);
              sp->restore_thd_mem_root(YYTHD);
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              lex->sp_chistics.suid= SP_IS_SUID;//always the definer!
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              lex->et->sphead= lex->sphead;
              lex->sphead= NULL;
            }
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            if (!lex->et_compile_phase)
            {
              lex->et->init_body(YYTHD);
            }
          }
      ;
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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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	    if (check_routine_name($1))
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            {
	      my_error(ER_SP_WRONG_NAME, MYF(0), $1.str);
	      YYABORT;
	    }
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	    $$= sp_name_current_db_new(YYTHD, $1);
	  }
	;

create_function_tail:
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	  RETURNS_SYM udf_type SONAME_SYM TEXT_STRING_sys
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	  {
	    LEX *lex=Lex;
	    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);

	    sp->m_type= TYPE_ENUM_FUNCTION;
	    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 ';'.
	     */
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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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            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;
	    sp->init_strings(YYTHD, lex, lex->spname);
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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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	  }
          '(' sp_cparam_list ')' {}
	;

/* CALL parameters */
sp_cparam_list:
	  /* Empty */
	| sp_cparams
	;

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:
1816
	  ident sp_init_param type
1817 1818 1819 1820
	  {
	    LEX *lex= Lex;
	    sp_pcontext *spc= lex->spcont;

1821
	    if (spc->find_variable(&$1, TRUE))
1822
	    {
1823
	      my_error(ER_SP_DUP_PARAM, MYF(0), $1.str);
1824 1825
	      YYABORT;
	    }
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            sp_variable_t *spvar= spc->push_variable(&$1,
                                                     (enum enum_field_types)$3,
                                                     sp_param_in);
1829 1830 1831

            if (lex->sphead->fill_field_definition(YYTHD, lex,
                                                   (enum enum_field_types) $3,
1832
                                                   &spvar->field_def))
1833 1834 1835
            {
              YYABORT;
            }
1836 1837
            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:
1853
	  sp_opt_inout sp_init_param ident type
1854 1855 1856 1857
	  {
	    LEX *lex= Lex;
	    sp_pcontext *spc= lex->spcont;

1858
	    if (spc->find_variable(&$3, TRUE))
1859
	    {
1860
	      my_error(ER_SP_DUP_PARAM, MYF(0), $3.str);
1861 1862
	      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,
1869
                                                   &spvar->field_def))
1870 1871 1872
            {
              YYABORT;
            }
1873 1874
            spvar->field_def.field_name= spvar->name.str;
            spvar->field_def.pack_flag |= FIELDFLAG_MAYBE_NULL;
1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886
	  }
	;

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 */ {}
1887
	| sp_proc_stmts  sp_proc_stmt ';'
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	;

sp_proc_stmts1:
	  sp_proc_stmt ';' {}
1892
	| 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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1908 1909
	      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:
1926
          DECLARE_SYM sp_decl_idents
1927
          {
1928
            LEX *lex= Lex;
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            lex->sphead->reset_lex(YYTHD);
            lex->spcont->declare_var_boundary($2);
          }
1933
          type
1934
          sp_opt_default
1935 1936
          {
            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)
1944
            {
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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);
1953
            
1954
              if (!spvar)
1955 1956
                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;
1968 1969 1970 1971 1972 1973 1974
            
              /* 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,
2004
	                              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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2051
            i= new sp_instr_cpush(sp->instructions(), ctx, $5,
2052
                                  ctx->current_cursor_count());
2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074
	    sp->add_instr(i);
	    ctx->push_cursor(&$2);
	    $$.vars= $$.conds= $$.hndlrs= 0;
	    $$.curs= 1;
	  }
	;

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

	    /* 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. */
	  }
	  statement
	  {
	    LEX *lex= Lex;

	    if (lex->sql_command != SQLCOM_SELECT)
	    {
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2075 2076
	      my_message(ER_SP_BAD_CURSOR_QUERY, ER(ER_SP_BAD_CURSOR_QUERY),
                         MYF(0));
2077 2078 2079 2080
	      YYABORT;
	    }
	    if (lex->result)
	    {
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2081 2082
	      my_message(ER_SP_BAD_CURSOR_SELECT, ER(ER_SP_BAD_CURSOR_SELECT),
                         MYF(0));
2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101
	      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 ($$ == NULL)
	    {
2178
	      my_error(ER_SP_COND_MISMATCH, MYF(0), $1.str);
2179 2180 2181 2182 2183 2184 2185 2186
	      YYABORT;
	    }
	  }
	| SQLWARNING_SYM	/* SQLSTATEs 01??? */
	  {
	    $$= (sp_cond_type_t *)YYTHD->alloc(sizeof(sp_cond_type_t));
	    $$->type= sp_cond_type_t::warning;
	  }
2187
	| not FOUND_SYM		/* SQLSTATEs 02??? */
2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201
	  {
	    $$= (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
	  {
2202 2203
            /* NOTE: field definition is filled in sp_decl section. */

2204 2205 2206
	    LEX *lex= Lex;
	    sp_pcontext *spc= lex->spcont;

2207
	    if (spc->find_variable(&$1, TRUE))
2208
	    {
2209
	      my_error(ER_SP_DUP_VAR, MYF(0), $1.str);
2210 2211
	      YYABORT;
	    }
2212
	    spc->push_variable(&$1, (enum_field_types)0, sp_param_in);
2213 2214 2215 2216
	    $$= 1;
	  }
	| sp_decl_idents ',' ident
	  {
2217 2218
            /* NOTE: field definition is filled in sp_decl section. */

2219 2220 2221
	    LEX *lex= Lex;
	    sp_pcontext *spc= lex->spcont;

2222
	    if (spc->find_variable(&$3, TRUE))
2223
	    {
2224
	      my_error(ER_SP_DUP_VAR, MYF(0), $3.str);
2225 2226
	      YYABORT;
	    }
2227
	    spc->push_variable(&$3, (enum_field_types)0, sp_param_in);
2228 2229 2230 2231 2232 2233 2234 2235 2236 2237
	    $$= $1 + 1;
	  }
	;

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

sp_proc_stmt:
2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252
	  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:
2253 2254 2255
        IF { Lex->sphead->new_cont_backpatch(NULL); }
        sp_if END IF
        { Lex->sphead->do_cont_backpatch(); }
2256 2257 2258
        ;
        
sp_proc_stmt_statement:
2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269
	  {
	    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;

2270
            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.
2280
	    */
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            DBUG_ASSERT(lex->sql_command != SQLCOM_SET_OPTION ||
                        lex->var_list.is_empty());
            if (lex->sql_command != SQLCOM_SET_OPTION)
2284
	    {
2285 2286
              sp_instr_stmt *i=new sp_instr_stmt(sp->instructions(),
                                                 lex->spcont, lex);
2287

2288
              /* Extract the query statement from the tokenizer:
2289
                 The end is either lex->tok_end or tok->ptr. */
2290 2291 2292 2293 2294 2295 2296 2297
              if (lex->ptr - lex->tok_end > 1)
                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);
          }
2301 2302 2303 2304
        ;

sp_proc_stmt_return:
        RETURN_SYM 
2305 2306
          { Lex->sphead->reset_lex(YYTHD); }
          expr
2307 2308
	  {
	    LEX *lex= Lex;
2309
	    sp_head *sp= lex->sphead;
2310

2311
	    if (sp->m_type != TYPE_ENUM_FUNCTION)
2312
	    {
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2313
	      my_message(ER_SP_BADRETURN, ER(ER_SP_BADRETURN), MYF(0));
2314 2315 2316 2317 2318 2319
	      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);
2322
	      sp->add_instr(i);
2323
	      sp->m_flags|= sp_head::HAS_RETURN;
2324
	    }
2325
	    sp->restore_lex(YYTHD);
2326
	  }
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        ;

sp_proc_stmt_case_simple:
	CASE_SYM WHEN_SYM
2331
	  {
2332
	    Lex->sphead->m_flags&= ~sp_head::IN_SIMPLE_CASE;
2333
            Lex->sphead->new_cont_backpatch(NULL);
2334
	  }
2335
          sp_case END CASE_SYM { Lex->sphead->do_cont_backpatch(); }
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        ;
        
sp_proc_stmt_case:
          CASE_SYM
2340 2341 2342 2343
          {
            Lex->sphead->reset_lex(YYTHD);
            Lex->sphead->new_cont_backpatch(NULL);
          }
2344
          expr WHEN_SYM
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	  {
	    LEX *lex= Lex;
2347 2348 2349
	    sp_head *sp= lex->sphead;
	    sp_pcontext *parsing_ctx= lex->spcont;
	    int case_expr_id= parsing_ctx->register_case_expr();
2350
            sp_instr_set_case_expr *i;
2351 2352 2353
	    
	    if (parsing_ctx->push_case_expr_id(case_expr_id))
              YYABORT;
2354 2355 2356 2357 2358 2359 2360 2361

            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);
2362 2363
	    sp->m_flags|= sp_head::IN_SIMPLE_CASE;
	    sp->restore_lex(YYTHD);
2364 2365 2366
	  }
	  sp_case END CASE_SYM
	  {
2367
	    Lex->spcont->pop_case_expr_id();
2368
            Lex->sphead->do_cont_backpatch();
2369
	  }
2370 2371 2372 2373
        ;

sp_proc_stmt_unlabeled:
	  { /* Unlabeled controls get a secret label. */
2374 2375 2376 2377 2378 2379 2380 2381 2382 2383
	    LEX *lex= Lex;

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

	    lex->sphead->backpatch(lex->spcont->pop_label());
	  }
2384 2385 2386 2387
        ;

sp_proc_stmt_leave:
	  LEAVE_SYM label_ident
2388 2389 2390 2391 2392 2393 2394 2395
	  {
	    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;

2405
	      n= ctx->diff_handlers(lab->ctx, TRUE);  /* Exclusive the dest. */
2406 2407
	      if (n)
	        sp->add_instr(new sp_instr_hpop(ip++, ctx, n));
2408
	      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;
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#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  */    { $$= null_lex_str; }
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        | label_ident   { $$= $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:
          NODEGROUP_SYM opt_equal ulong_num
          {
            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 ? $4 : &default_hton;
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          };

opt_ts_wait:
          /* empty */ 
          | 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:
          ulong_num { $$= $1;}
          | IDENT
          {
            ulonglong number, test_number;
            uint text_shift_number= 0;
            longlong prefix_number;
            char *start_ptr= $1.str;
            uint str_len= strlen(start_ptr);
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            char *end_ptr= start_ptr + str_len;
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            int error;
            prefix_number= my_strtoll10(start_ptr, &end_ptr, &error);
            if ((start_ptr + str_len - 1) == end_ptr)
            {
              switch (end_ptr[0])
              {
                case 'g':
                case 'G':
                  text_shift_number+=10;
                case 'm':
                case 'M':
                  text_shift_number+=10;
                case 'k':
                case 'K':
                  text_shift_number+=10;
                  break;
                default:
                {
                  my_error(ER_WRONG_SIZE_NUMBER, MYF(0));
                  YYABORT;
                }
              }
              if (prefix_number >> 31)
              {
                my_error(ER_SIZE_OVERFLOW_ERROR, MYF(0));
                YYABORT;
              }
              number= prefix_number << text_shift_number;
            }
            else
            {
              my_error(ER_WRONG_SIZE_NUMBER, MYF(0));
              YYABORT;
            }
            $$= 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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            if (!(lex->like_name= $2))
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              YYABORT;
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          }
        | '(' LIKE table_ident ')'
          {
            LEX *lex=Lex;
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            if (!(lex->like_name= $3))
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              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.

3218
 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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        {
          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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        }
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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 */ {}
        | PARTITIONS_SYM ulong_num 
        { 
          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 */ {}
        | SUBPARTITIONS_SYM ulong_num
        {
          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;
            }
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          }
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          else
            lex->part_info->part_type= RANGE_PARTITION;
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        }
        | 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;
            }
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          }
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          else
            lex->part_info->part_type= LIST_PARTITION;
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        }
        ;
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part_func_max:
        MAX_VALUE_SYM
        {
          LEX *lex= Lex;
          if (lex->part_info->defined_max_value)
          {
            yyerror(ER(ER_PARTITION_MAXVALUE_ERROR));
            YYABORT;
          }
          lex->part_info->defined_max_value= TRUE;
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          lex->part_info->curr_part_elem->range_value= LONGLONG_MAX;
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        }
        | 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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        }
        ;
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part_range_func:
        '(' part_bit_expr ')' 
        {
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          Lex->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
        {
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          part_elem_value *value_ptr= $1;
          if (!value_ptr->null_value &&
             Lex->part_info->curr_part_elem->
              list_val_list.push_back((longlong*) &value_ptr->value))
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          {
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            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;
          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->fix_fields(YYTHD, (Item**)0) ||
              ((context->table_list= save_list), FALSE) ||
              (!part_expr->const_item()) ||
              (!lex->safe_to_cache_query))
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          {
            yyerror(ER(ER_NO_CONST_EXPR_IN_RANGE_OR_LIST_ERROR));
            YYABORT;
          }
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          thd->where= save_where;
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          value_ptr->value= part_expr->val_int();
          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;
          }
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          $$= value_ptr; 
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        }
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        ;
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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;
          partition_element *p_elem= new partition_element();
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          if (!p_elem ||
           part_info->current_partition->subpartitions.push_back(p_elem))
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          {
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            mem_alloc_error(sizeof(partition_element));
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            YYABORT;
          }
          part_info->curr_part_elem= p_elem;
          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;
        }
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        | NODEGROUP_SYM opt_equal ulong_num
        { Lex->part_info->curr_part_elem->nodegroup_id= $3; }
        | MAX_ROWS opt_equal ulonglong_num
        { Lex->part_info->curr_part_elem->part_max_rows= $3; }
        | MIN_ROWS opt_equal ulonglong_num
        { 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:
3761
          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
	  {
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	    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	    {};
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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   {};
3806

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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; }
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	| 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:
3836
	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;}
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	| PASSWORD opt_equal TEXT_STRING_sys	{ Lex->create_info.password=$3.str; Lex->create_info.used_fields|= HA_CREATE_USED_PASSWORD; }
	| COMMENT_SYM opt_equal TEXT_STRING_sys	{ Lex->create_info.comment=$3.str; Lex->create_info.used_fields|= HA_CREATE_USED_COMMENT; }
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	| 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; }
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	| ROW_FORMAT_SYM opt_equal row_types	{ Lex->create_info.row_type= $3;  Lex->create_info.used_fields|= HA_CREATE_USED_ROW_FORMAT; }
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	| 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;
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	    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;
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	    lex->create_info.used_fields|= HA_CREATE_USED_UNION;
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	  }
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	| default_charset
	| default_collation
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	| 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;
	  }
3903
        ;
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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:
3939 3940
	ident_or_text
	{
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	  $$ = ha_resolve_by_name(YYTHD, &$1);
	  if ($$ == NULL &&
3943 3944
	      test(YYTHD->variables.sql_mode & MODE_NO_ENGINE_SUBSTITUTION))
	  {
3945
	    my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), $1.str);
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	    YYABORT;
	  }
	};
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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; };
3962

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opt_select_from:
3964
	opt_limit_clause {}
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	| select_from select_lock_type;
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udf_func_type:
3968
	/* 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:
3996
	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,
4005
					   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
4010 4011
	  {
	    LEX *lex=Lex;
4012
	    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,
4014
					    lex->col_list));
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	    lex->col_list.empty();		/* Alloced by sql_alloc */
	  }
4017
	| opt_constraint FOREIGN KEY_SYM opt_ident '(' key_list ')' references
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	  {
4019
	    LEX *lex=Lex;
4020
	    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,
4027
					    &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 */
	  }
4038
	| 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:
4045
	/* empty */
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	| check_constraint
	;

check_constraint:
	CHECK_SYM expr
4051
	;
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opt_constraint:
4054
	/* empty */		{ $$=(char*) 0; }
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	| constraint		{ $$= $1; }
	;

constraint:
	CONSTRAINT opt_ident	{ $$=$2; }
	;
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field_spec:
	field_ident
	 {
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	   LEX *lex=Lex;
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	   lex->length=lex->dec=0; lex->type=0;
4067
	   lex->default_value= lex->on_update_value= 0;
4068
           lex->comment=null_lex_str;
4069
	   lex->charset=NULL;
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	 }
	type opt_attribute
	{
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	  LEX *lex=Lex;
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	  if (add_field_to_list(lex->thd, $1.str,
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				(enum enum_field_types) $3,
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				lex->length,lex->dec,lex->type,
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				lex->default_value, lex->on_update_value, 
4078
                                &lex->comment,
4079
				lex->change,&lex->interval_list,lex->charset,
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				lex->uint_geom_type))
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	    YYABORT;
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	};
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type:
4085
	int_type opt_len field_options	{ $$=$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; }
4096
	| 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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					  $$=FIELD_TYPE_STRING;
4102
					  Lex->charset=national_charset_info; }
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	| nchar opt_bin_mod		{ Lex->length=(char*) "1";
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					  $$=FIELD_TYPE_STRING;
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					  Lex->charset=national_charset_info; }
4106
	| 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;
4113
					  $$= MYSQL_TYPE_VARCHAR; }
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	| nvarchar '(' NUM ')' opt_bin_mod { Lex->length=$3.str;
4115
					  $$= 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; }
4123
	| TIMESTAMP opt_len
4124
	  {
4125
	    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;
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            }
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	   }
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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),
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                     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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                                        { $$=FIELD_TYPE_NEWDECIMAL;}
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	| ENUM {Lex->interval_list.empty();} '(' string_list ')' opt_binary
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	  { $$=FIELD_TYPE_ENUM; }
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	| SET { Lex->interval_list.empty();} '(' string_list ')' opt_binary
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	  { $$=FIELD_TYPE_SET; }
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	| LONG_SYM opt_binary		{ $$=FIELD_TYPE_MEDIUM_BLOB; }
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	| SERIAL_SYM
	  {
	    $$=FIELD_TYPE_LONGLONG;
	    Lex->type|= (AUTO_INCREMENT_FLAG | NOT_NULL_FLAG | UNSIGNED_FLAG |
		         UNIQUE_FLAG);
	  }
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	;
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spatial_type:
	GEOMETRY_SYM	      { $$= 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	{ $$=FIELD_TYPE_LONGLONG; };
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real_type:
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	REAL		{ $$= 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; }
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	| 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; }
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	| SERIAL_SYM DEFAULT VALUE_SYM
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	  { 
	    LEX *lex=Lex;
	    lex->type|= AUTO_INCREMENT_FLAG | NOT_NULL_FLAG | UNIQUE_FLAG; 
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	    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; 
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	    lex->alter_info.flags|= ALTER_ADD_INDEX; 
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	  }
	| UNIQUE_SYM	  
	  {
	    LEX *lex=Lex;
	    lex->type|= UNIQUE_FLAG; 
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	    lex->alter_info.flags|= ALTER_ADD_INDEX; 
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	  }
	| UNIQUE_SYM KEY_SYM 
	  {
	    LEX *lex=Lex;
	    lex->type|= UNIQUE_KEY_FLAG; 
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	    lex->alter_info.flags|= ALTER_ADD_INDEX; 
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	  }
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	| 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; }
        ;

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charset:
	CHAR_SYM SET	{}
	| CHARSET	{}
	;
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charset_name:
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	ident_or_text
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	{
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	  if (!($$=get_charset_by_csname($1.str,MY_CS_PRIMARY,MYF(0))))
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	  {
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	    my_error(ER_UNKNOWN_CHARACTER_SET, MYF(0), $1.str);
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	    YYABORT;
	  }
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	}
	| BINARY { $$= &my_charset_bin; }
	;
4341

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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)))
	  {
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	    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; } ;

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collation_name:
4365
	ident_or_text
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	{
	  if (!($$=get_charset_by_name($1.str,MYF(0))))
	  {
4369
	    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:
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	/* 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:
	/* empty */ { }
	| 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
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	;
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references:
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	REFERENCES table_ident
	{
4429
	  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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	};
4437

4438
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)); };
4445

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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:
4530
	/* empty */ init_key_options
4531
	| init_key_options key_using_alg
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	;

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

key_opts:
	key_opt
	| key_opts key_opt
	;
4543 4544 4545 4546 4547 4548

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

4549
key_opt:
4550
        key_using_alg
4551
	| 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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4566
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); }
4580
	| ident '(' NUM ')'
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        {
          int key_part_len= atoi($3.str);
          if (!key_part_len)
          {
4585
            my_error(ER_KEY_PART_0, MYF(0), $1.str);
4586 4587 4588
          }
          $$=new key_part_spec($1.str,(uint) key_part_len);
        };
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opt_ident:
	/* empty */	{ $$=(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; };
4597

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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
	{
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	  THD *thd= YYTHD;
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	  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->select_lex.db=lex->name= 0;
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	  lex->like_name= 0;
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	  bzero((char*) &lex->create_info,sizeof(lex->create_info));
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	  lex->create_info.db_type= (handlerton*) &default_hton;
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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;
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          lex->no_write_to_binlog= 0;
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	}
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	alter_commands
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	{}
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	| 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;
	    lex->sql_command=SQLCOM_ALTER_DB;
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	    lex->name= $3;
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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
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	  {}
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	| ALTER EVENT_SYM 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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          {
            LEX *lex=Lex;
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            Event_timed *et;
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            if (lex->et)
            {
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              /*
                Recursive events are not possible because recursive SPs
                are not also possible. lex->sp_head is not stacked.
              */
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              my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "EVENT");
              YYABORT;
            }
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            lex->spname= 0;//defensive programming
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            if (!(et= new (YYTHD->mem_root) Event_timed()))// implicitly calls Event_timed::init()
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              YYABORT;
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            lex->et = et;

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            if (!lex->et_compile_phase)
            {
              et->init_definer(YYTHD);
              et->init_name(YYTHD, $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;
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            YYTHD->client_capabilities &= ~CLIENT_MULTI_QUERIES;
          }
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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;

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            /*
              sql_command is set here because some rules in ev_sql_stmt
              can overwrite it
            */
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            if (!($5 || $6 || $7 || $8 || $9))
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            {
	      yyerror(ER(ER_SYNTAX_ERROR));
              YYABORT;
            }
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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;
          }
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	;
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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; }
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      ;
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opt_ev_rename_to: /* empty */ { $$= 0;}
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        | RENAME TO_SYM sp_name
          {
            LEX *lex=Lex;
            lex->spname= $3; //use lex's spname to hold the new name
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	                     //the original name is in the Event_timed object
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            $$= 1;
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          }
      ;
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opt_ev_sql_stmt: /* empty*/ { $$= 0;}
        | DO_SYM ev_sql_stmt { $$= 1; }
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        ;
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ident_or_empty:
	/* empty */  { $$= 0; }
	| ident      { $$= $1.str; };

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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
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        | partitioning
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/*
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  This part was added for release 5.1 by Mikael Ronström.
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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
        | COALESCE PARTITION_SYM opt_no_write_to_binlog 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:
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        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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        }
        | PARTITIONS_SYM ulong_num
        {
          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:
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	ADD opt_column
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	{
	  LEX *lex=Lex;
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	  lex->change=0;
	  lex->alter_info.flags|= ALTER_ADD_COLUMN;
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	};
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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;
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	  }
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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;
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	     lex->change= $3.str;
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	     lex->alter_info.flags|= ALTER_CHANGE_COLUMN;
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	  }
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          field_spec opt_place
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        | MODIFY_SYM opt_column field_ident
          {
            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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	    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,
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                                  &lex->comment,
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				  $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,
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                                                               $3.str));
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	    lex->alter_info.flags|= ALTER_DROP_COLUMN;
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	  }
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	| DROP FOREIGN KEY_SYM opt_ident
          {
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	    Lex->alter_info.flags|= ALTER_DROP_INDEX | ALTER_FOREIGN_KEY;
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          }
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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;
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	    lex->alter_info.alter_list.push_back(new Alter_column($3.str,$6));
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	    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));
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	    lex->alter_info.flags|= ALTER_CHANGE_COLUMN_DEFAULT;
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	  }
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	| RENAME opt_to table_ident
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	  {
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	    LEX *lex=Lex;
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	    lex->select_lex.db=$3->db.str;
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	    lex->name= $3->table.str;
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            if (check_table_name($3->table.str,$3->table.length) ||
                $3->db.str && check_db_name($3->db.str))
            {
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              my_error(ER_WRONG_TABLE_NAME, MYF(0), $3->table.str);
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              YYABORT;
            }
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	    lex->alter_info.flags|= ALTER_RENAME;
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	  }
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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;
	    }
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	    LEX *lex= Lex;
5102
	    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);
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	    lex->alter_info.flags|= ALTER_CONVERT;
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	  }
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        | create_table_options_space_separated
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	  {
	    LEX *lex=Lex;
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	    lex->alter_info.flags|= ALTER_OPTIONS;
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	  }
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	| FORCE_SYM
	  {
	    Lex->alter_info.flags|= ALTER_FORCE;
	   }
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	| order_clause
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	  {
	    LEX *lex=Lex;
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	    lex->alter_info.flags|= ALTER_ORDER;
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	  };
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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	{}
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	| EQ		{}
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	| AS		{};
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/*
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  SLAVE START and SLAVE STOP are deprecated. We keep them for compatibility.
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*/

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slave:
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	  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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          }
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	| 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:
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	START_SYM TRANSACTION_SYM start_transaction_opts
        {
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          LEX *lex= Lex;
          lex->sql_command= SQLCOM_BEGIN;
          lex->start_transaction_opt= $3;
5197
        }
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	;

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start_transaction_opts:
        /*empty*/ { $$ = 0; }
        | WITH CONSISTENT_SYM SNAPSHOT_SYM
        {
           $$= MYSQL_START_TRANS_OPT_WITH_CONS_SNAPSHOT;
        }
5206
        ;
5207

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slave_thread_opts:
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	{ Lex->slave_thd_opt= 0; }
	slave_thread_opt_list
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        {}
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	;
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slave_thread_opt_list:
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	slave_thread_opt
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	| slave_thread_opt_list ',' slave_thread_opt
	;
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slave_thread_opt:
5220
	/*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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	;
5224

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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;
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           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;
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           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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checksum:
        CHECKSUM_SYM table_or_tables
	{
	   LEX *lex=Lex;
	   lex->sql_command = SQLCOM_CHECKSUM;
	}
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	table_list opt_checksum_type
        {}
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	;

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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:
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	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;
5293
           lex->no_write_to_binlog= $2;
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	   lex->check_opt.init();
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	}
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	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 {};
5307

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mi_repair_type:
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	QUICK          { Lex->check_opt.flags|= T_QUICK; }
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	| 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:
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	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;
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           lex->no_write_to_binlog= $2;
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	   lex->check_opt.init();
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	}
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	table_list opt_mi_check_type
	{}
	;
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binlog_base64_event:
        BINLOG_SYM TEXT_STRING_sys
        {
           Lex->sql_command = SQLCOM_BINLOG_BASE64_EVENT;
           Lex->comment= $2;
        }
5331
        ;
5332

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check:
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	CHECK_SYM table_or_tables
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	{
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	  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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	}
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	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:
5367
	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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	}
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	table_list opt_mi_check_type
	{}
	;
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opt_no_write_to_binlog:
	/* empty */        { $$= 0; }
	| NO_WRITE_TO_BINLOG  { $$= 1; }
5381
	| LOCAL_SYM  { $$= 1; }
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	;

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rename:
	RENAME table_or_tables
	{
5387
          Lex->sql_command= SQLCOM_RENAME_TABLE;
5388
	}
5389 5390
	table_to_table_list
	{}
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	| RENAME DATABASE
          {
            Lex->db_list.empty();
            Lex->sql_command= SQLCOM_RENAME_DB;
          }
          db_to_db
          {}
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	| RENAME USER clear_privileges rename_list
          {
	    Lex->sql_command = SQLCOM_RENAME_USER;
          }
5402
	;
5403

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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;
          }
        ;

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table_to_table_list:
	table_to_table
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	| table_to_table_list ',' table_to_table;
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table_to_table:
	table_ident TO_SYM table_ident
5423
	{
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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))
5430
	    YYABORT;
5431
	};
5432

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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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        CACHE_SYM INDEX_SYM keycache_list IN_SYM key_cache_name
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        {
          LEX *lex=Lex;
5448
          lex->sql_command= SQLCOM_ASSIGN_TO_KEYCACHE;
5449
	  lex->ident= $5;
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        }
        ;

keycache_list:
        assign_to_keycache
        | keycache_list ',' assign_to_keycache;

assign_to_keycache:
5458
        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(),
5465
                                      (List<String> *)0))
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            YYABORT;
        }
        ;

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key_cache_name:
	ident	   { $$= $1; }
	| DEFAULT  { $$ = default_key_cache_base; }
5473
	;
5474

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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;
	}
	;

5502
cache_keys_spec:
5503
        { Select->interval_list.empty(); }
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        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:
5513
	/* empty */	{ Lex->select_lex.use_index_ptr= 0; }
5514
	| opt_key_or_index '(' key_usage_list2 ')'
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	  {
            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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5540
/* Need select_init2 for subselects. */
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select_init:
5542
	SELECT_SYM select_init2
5543
	|
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	'(' select_paren ')' union_opt;

select_paren:
	SELECT_SYM select_part2
5548
	  {
5549
	    LEX *lex= Lex;
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            SELECT_LEX * sel= lex->current_select;
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	    if (sel->set_braces(1))
5552
	    {
5553
	      yyerror(ER(ER_SYNTAX_ERROR));
5554 5555
	      YYABORT;
	    }
5556 5557
	  if (sel->linkage == UNION_TYPE &&
	      !sel->master_unit()->first_select()->braces)
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	  {
5559
	    yyerror(ER(ER_SYNTAX_ERROR));
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	    YYABORT;
	  }
5562
            /* 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 ')';
5568

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select_init2:
	select_part2
5571
        {
5572
	  LEX *lex= Lex;
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          SELECT_LEX * sel= lex->current_select;
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          if (lex->current_select->set_braces(0))
5575
	  {
5576
	    yyerror(ER(ER_SYNTAX_ERROR));
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	    YYABORT;
	  }
5579 5580
	  if (sel->linkage == UNION_TYPE &&
	      sel->master_unit()->first_select()->braces)
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	  {
5582
	    yyerror(ER(ER_SYNTAX_ERROR));
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	    YYABORT;
	  }
5585
	}
5586
	union_clause
5587 5588
	;

5589
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);
5595
	  lex->current_select->parsing_place= SELECT_LIST;
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	}
	select_options select_item_list
	{
5599
	  Select->parsing_place= NO_MATTER;
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	}
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	select_into select_lock_type;
5602

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select_into:
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	opt_order_clause opt_limit_clause {}
5605
        | into
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	| select_from
5607 5608
	| into select_from
	| select_from into;
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select_from:
5611 5612
	  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 :) */
5618
	;
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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:
5637
	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;
	  }
5659
	| SQL_NO_CACHE_SYM { Lex->safe_to_cache_query=0; }
5660 5661 5662 5663
	| SQL_CACHE_SYM
	  {
	    Lex->select_lex.options|= OPTION_TO_QUERY_CACHE;
	  }
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	| ALL		    { Select->options|= SELECT_ALL; }
5665
	;
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select_lock_type:
	/* empty */
	| FOR_SYM UPDATE_SYM
5670 5671
	  {
	    LEX *lex=Lex;
5672
	    lex->current_select->set_lock_for_tables(TL_WRITE);
5673
	    lex->safe_to_cache_query=0;
5674
	  }
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	| LOCK_SYM IN_SYM SHARE_SYM MODE_SYM
5676 5677
	  {
	    LEX *lex=Lex;
5678 5679
	    lex->current_select->
	      set_lock_for_tables(TL_READ_WITH_SHARED_LOCKS);
5680
	    lex->safe_to_cache_query=0;
5681 5682
	  }
	;
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select_item_list:
	  select_item_list ',' select_item
	| select_item
	| '*'
	  {
5689
	    THD *thd= YYTHD;
5690 5691 5692 5693
	    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->set_name($4.str, $4.length, system_charset_info);
              $2->is_autogenerated_name= FALSE;
            }
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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:
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	/* 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:
	bool_pri IS TRUE_SYM	{ $$= is_truth_value($1,1,0); }
	| bool_pri IS not TRUE_SYM { $$= is_truth_value($1,0,0); }
	| bool_pri IS FALSE_SYM	{ $$= is_truth_value($1,0,1); }
	| bool_pri IS not FALSE_SYM { $$= is_truth_value($1,1,1); }
	| 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); }
	| bool_pri comp_op all_or_any in_subselect %prec EQ
	  { $$= all_any_subquery_creator($1, $2, $3, $4); }
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	| predicate ;

predicate:
	 bit_expr IN_SYM '(' expr_list ')'
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	  { 
            if ($4->elements == 1)
              $$= new Item_func_eq($1, $4->head());
            else
            {
              $4->push_front($1);
              $$= new Item_func_in(*$4);
            }
          }
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	| bit_expr not IN_SYM '(' expr_list ')'
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          {
            if ($5->elements == 1)
              $$= new Item_func_ne($1, $5->head());
            else
            {
              $5->push_front($1);
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              Item_func_in *item = new Item_func_in(*$5);
              item->negate();
              $$= item;
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            }            
          }
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        | bit_expr IN_SYM in_subselect
	  { $$= new Item_in_subselect($1, $3); }
	| bit_expr not IN_SYM in_subselect
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          { $$= negate_expression(YYTHD, new Item_in_subselect($1, $4)); }
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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
	  { $$= new Item_func_eq(new Item_func_soundex($1),
				 new Item_func_soundex($4)); }
	| bit_expr LIKE simple_expr opt_escape
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          { $$= new Item_func_like($1,$3,$4,Lex->escape_used); }
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	| bit_expr not LIKE simple_expr opt_escape
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          { $$= new Item_func_not(new Item_func_like($1,$4,$5, Lex->escape_used)); }
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	| bit_expr REGEXP bit_expr	{ $$= new Item_func_regex($1,$3); }
	| bit_expr not REGEXP bit_expr
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          { $$= 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; }
        ;

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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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 	| simple_expr COLLATE_SYM ident_or_text %prec NEG
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	  {
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	    $$= new Item_func_set_collation($1,
					    new Item_string($3.str,
							    $3.length,
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                                                            YYTHD->charset()));
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	  }
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	| literal
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	| param_marker
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	| '@' ident_or_text SET_VAR expr
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	  {
	    $$= new Item_func_set_user_var($2,$4);
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	    LEX *lex= Lex;
	    lex->uncacheable(UNCACHEABLE_RAND);
	    lex->variables_used= 1;
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	  }
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	| '@' ident_or_text
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	  {
	    $$= new Item_func_get_user_var($2);
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	    LEX *lex= Lex;
	    lex->uncacheable(UNCACHEABLE_RAND);
	    lex->variables_used= 1;
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	  }
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	| '@' '@' opt_var_ident_type ident_or_text opt_component
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	  {
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            if ($4.str && $5.str && check_reserved_words(&$4))
            {
              yyerror(ER(ER_SYNTAX_ERROR));
              YYABORT;
            }
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	    if (!($$= get_system_var(YYTHD, $3, $4, $5)))
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	      YYABORT;
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	    Lex->variables_used= 1;
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	  }
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	| sum_expr
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	| simple_expr OR_OR_SYM simple_expr
	  { $$= new Item_func_concat($1, $3); }
	| '+' simple_expr %prec NEG	{ $$= $2; }
	| '-' simple_expr %prec NEG	{ $$= new Item_func_neg($2); }
	| '~' simple_expr %prec NEG	{ $$= new Item_func_bit_neg($2); }
	| not2 simple_expr %prec NEG	{ $$= negate_expression(YYTHD, $2); }
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	| '(' expr ')'		{ $$= $2; }
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	| '(' expr ',' expr_list ')'
	  {
	    $4->push_front($2);
	    $$= new Item_row(*$4);
	  }
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	| ROW_SYM '(' expr ',' expr_list ')'
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	  {
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	    $5->push_front($3);
	    $$= new Item_row(*$5);
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	  }
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	| EXISTS exists_subselect { $$= $2; }
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	| singlerow_subselect   { $$= $1; }
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	| '{' ident expr '}'	{ $$= $3; }
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        | MATCH ident_list_arg AGAINST '(' bit_expr fulltext_options ')'
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          { $2->push_front($5);
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            Select->add_ftfunc_to_list((Item_func_match*)
                                        ($$=new Item_func_match(*$2,$6))); }
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	| ASCII_SYM '(' expr ')' { $$= new Item_func_ascii($3); }
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	| BINARY simple_expr %prec NEG
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	  {
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            $$= create_func_cast($2, ITEM_CAST_CHAR, -1, 0, &my_charset_bin);
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	  }
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	| CAST_SYM '(' expr AS cast_type ')'
5984
	  {
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            LEX *lex= Lex;
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	    $$= create_func_cast($3, $5,
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                                 lex->length ? atoi(lex->length) : -1,
                                 lex->dec ? atoi(lex->dec) : 0,
                                 lex->charset);
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	  }
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	| CASE_SYM opt_expr WHEN_SYM when_list opt_else END
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	  { $$= new Item_func_case(* $4, $2, $5 ); }
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	| CONVERT_SYM '(' expr ',' cast_type ')'
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	  {
	    $$= create_func_cast($3, $5,
				 Lex->length ? atoi(Lex->length) : -1,
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                                 Lex->dec ? atoi(Lex->dec) : 0,
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				 Lex->charset);
	  }
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	| CONVERT_SYM '(' expr USING charset_name ')'
	  { $$= new 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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	    $$= new Item_default_value(Lex->current_context(), $3);
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	  }
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	| VALUES '(' simple_ident_nospvar ')'
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	  { $$= new Item_insert_value(Lex->current_context(), $3); }
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	| FUNC_ARG0 '(' ')'
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	  {
	    if (!$1.symbol->create_func)
	    {
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              my_error(ER_FEATURE_DISABLED, MYF(0),
                       $1.symbol->group->name,
                       $1.symbol->group->needed_define);
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	      YYABORT;
	    }
	    $$= ((Item*(*)(void))($1.symbol->create_func))();
	  }
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	| FUNC_ARG1 '(' expr ')'
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	  {
	    if (!$1.symbol->create_func)
	    {
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              my_error(ER_FEATURE_DISABLED, MYF(0),
                       $1.symbol->group->name,
                       $1.symbol->group->needed_define);
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	      YYABORT;
	    }
	    $$= ((Item*(*)(Item*))($1.symbol->create_func))($3);
	  }
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	| FUNC_ARG2 '(' expr ',' expr ')'
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	  {
	    if (!$1.symbol->create_func)
	    {
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	      my_error(ER_FEATURE_DISABLED, MYF(0),
                       $1.symbol->group->name,
                       $1.symbol->group->needed_define);
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	      YYABORT;
	    }
	    $$= ((Item*(*)(Item*,Item*))($1.symbol->create_func))($3,$5);
	  }
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	| FUNC_ARG3 '(' expr ',' expr ',' expr ')'
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	  {
	    if (!$1.symbol->create_func)
	    {
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              my_error(ER_FEATURE_DISABLED, MYF(0),
                       $1.symbol->group->name,
                       $1.symbol->group->needed_define);
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	      YYABORT;
	    }
	    $$= ((Item*(*)(Item*,Item*,Item*))($1.symbol->create_func))($3,$5,$7);
	  }
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	| ADDDATE_SYM '(' expr ',' expr ')'
	  { $$= new Item_date_add_interval($3, $5, INTERVAL_DAY, 0);}
	| ADDDATE_SYM '(' expr ',' INTERVAL_SYM expr interval ')'
	  { $$= new Item_date_add_interval($3, $6, $7, 0); }
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	| REPEAT_SYM '(' expr ',' expr ')'
	  { $$= new Item_func_repeat($3,$5); }
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	| ATAN	'(' expr ')'
	  { $$= new Item_func_atan($3); }
	| ATAN	'(' expr ',' expr ')'
	  { $$= new Item_func_atan($3,$5); }
	| CHAR_SYM '(' expr_list ')'
	  { $$= new Item_func_char(*$3); }
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	| CHAR_SYM '(' expr_list USING charset_name ')'
	  { $$= new Item_func_char(*$3, $5); }
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	| CHARSET '(' expr ')'
	  { $$= new Item_func_charset($3); }
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	| COALESCE '(' expr_list ')'
	  { $$= new Item_func_coalesce(* $3); }
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	| COLLATION_SYM '(' expr ')'
	  { $$= new Item_func_collation($3); }
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	| CONCAT '(' expr_list ')'
	  { $$= new Item_func_concat(* $3); }
	| CONCAT_WS '(' expr ',' expr_list ')'
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	  { $5->push_front($3); $$= new Item_func_concat_ws(*$5); }
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	| CONVERT_TZ_SYM '(' expr ',' expr ',' expr ')'
	  {
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            if (Lex->add_time_zone_tables_to_query_tables(YYTHD))
              YYABORT;
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	    $$= new Item_func_convert_tz($3, $5, $7);
	  }
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	| CURDATE optional_braces
6090
	  { $$= new Item_func_curdate_local(); Lex->safe_to_cache_query=0; }
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	| CURTIME optional_braces
6092
	  { $$= new Item_func_curtime_local(); Lex->safe_to_cache_query=0; }
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	| CURTIME '(' expr ')'
6094
	  {
6095
	    $$= new Item_func_curtime_local($3);
6096
	    Lex->safe_to_cache_query=0;
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	  }
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	| CURRENT_USER optional_braces
6099
          { $$= create_func_current_user(); }
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	| DATE_ADD_INTERVAL '(' expr ',' interval_expr interval ')'
	  { $$= new Item_date_add_interval($3,$5,$6,0); }
	| DATE_SUB_INTERVAL '(' expr ',' interval_expr interval ')'
	  { $$= new Item_date_add_interval($3,$5,$6,1); }
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	| DATABASE '(' ')'
6105
	  {
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	    $$= new Item_func_database();
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            Lex->safe_to_cache_query=0;
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	  }
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	| DATE_SYM '(' expr ')'
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	  { $$= new Item_date_typecast($3); }
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	| DAY_SYM '(' expr ')'
	  { $$= new Item_func_dayofmonth($3); }
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	| ELT_FUNC '(' expr ',' expr_list ')'
6114
	  { $5->push_front($3); $$= new Item_func_elt(*$5); }
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	| MAKE_SET_SYM '(' expr ',' expr_list ')'
	  { $$= new Item_func_make_set($3, *$5); }
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	| ENCRYPT '(' expr ')'
	  {
	    $$= new Item_func_encrypt($3);
6120
	    Lex->uncacheable(UNCACHEABLE_RAND);
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	  }
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	| ENCRYPT '(' expr ',' expr ')'   { $$= new Item_func_encrypt($3,$5); }
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	| DECODE_SYM '(' expr ',' TEXT_STRING_literal ')'
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	  { $$= new Item_func_decode($3,$5.str); }
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	| ENCODE_SYM '(' expr ',' TEXT_STRING_literal ')'
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	 { $$= new Item_func_encode($3,$5.str); }
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	| DES_DECRYPT_SYM '(' expr ')'
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        { $$= new Item_func_des_decrypt($3); }
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	| DES_DECRYPT_SYM '(' expr ',' expr ')'
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        { $$= new Item_func_des_decrypt($3,$5); }
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	| DES_ENCRYPT_SYM '(' expr ')'
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        { $$= new Item_func_des_encrypt($3); }
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	| DES_ENCRYPT_SYM '(' expr ',' expr ')'
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        { $$= new Item_func_des_encrypt($3,$5); }
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	| EXPORT_SET '(' expr ',' expr ',' expr ')'
		{ $$= new Item_func_export_set($3, $5, $7); }
	| EXPORT_SET '(' expr ',' expr ',' expr ',' expr ')'
		{ $$= new Item_func_export_set($3, $5, $7, $9); }
	| EXPORT_SET '(' expr ',' expr ',' expr ',' expr ',' expr ')'
		{ $$= new Item_func_export_set($3, $5, $7, $9, $11); }
	| FORMAT_SYM '(' expr ',' NUM ')'
	  { $$= new Item_func_format($3,atoi($5.str)); }
	| FROM_UNIXTIME '(' expr ')'
	  { $$= new Item_func_from_unixtime($3); }
	| FROM_UNIXTIME '(' expr ',' expr ')'
	  {
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	    $$= new Item_func_date_format (new Item_func_from_unixtime($3),$5,0);
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	  }
	| FIELD_FUNC '(' expr ',' expr_list ')'
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	  { $5->push_front($3); $$= new Item_func_field(*$5); }
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	| geometry_function
	  {
#ifdef HAVE_SPATIAL
	    $$= $1;
#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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	| GET_FORMAT '(' date_time_type  ',' expr ')'
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	  { $$= new Item_func_get_format($3, $5); }
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	| HOUR_SYM '(' expr ')'
	  { $$= new Item_func_hour($3); }
	| IF '(' expr ',' expr ',' expr ')'
	  { $$= new Item_func_if($3,$5,$7); }
	| INSERT '(' expr ',' expr ',' expr ',' expr ')'
	  { $$= new Item_func_insert($3,$5,$7,$9); }
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	| interval_expr interval '+' expr
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	  /* we cannot put interval before - */
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	  { $$= new Item_date_add_interval($4,$1,$2,0); }
	| interval_expr
	  {
            if ($1->type() != Item::ROW_ITEM)
            {
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              yyerror(ER(ER_SYNTAX_ERROR));
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              YYABORT;
            }
            $$= new Item_func_interval((Item_row *)$1);
          }
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	| LAST_INSERT_ID '(' ')'
	  {
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	    $$= new Item_func_last_insert_id();
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	    Lex->safe_to_cache_query= 0;
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	  }
	| LAST_INSERT_ID '(' expr ')'
	  {
6188
	    $$= new Item_func_last_insert_id($3);
6189
	    Lex->safe_to_cache_query= 0;
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	  }
	| LEFT '(' expr ',' expr ')'
	  { $$= new Item_func_left($3,$5); }
	| LOCATE '(' expr ',' expr ')'
	  { $$= new Item_func_locate($5,$3); }
	| LOCATE '(' expr ',' expr ',' expr ')'
	  { $$= new Item_func_locate($5,$3,$7); }
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	| GREATEST_SYM '(' expr ',' expr_list ')'
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	  { $5->push_front($3); $$= new Item_func_max(*$5); }
	| LEAST_SYM '(' expr ',' expr_list ')'
	  { $5->push_front($3); $$= new Item_func_min(*$5); }
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	| LOG_SYM '(' expr ')'
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	  { $$= new Item_func_log($3); }
6203
	| LOG_SYM '(' expr ',' expr ')'
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	  { $$= new Item_func_log($3, $5); }
6205
	| MASTER_POS_WAIT '(' expr ',' expr ')'
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	  {
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	    $$= new Item_master_pos_wait($3, $5);
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	    Lex->safe_to_cache_query=0;
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		  }
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	| MASTER_POS_WAIT '(' expr ',' expr ',' expr ')'
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	  {
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	    $$= new Item_master_pos_wait($3, $5, $7);
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	    Lex->safe_to_cache_query=0;
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	  }
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	| MICROSECOND_SYM '(' expr ')'
	  { $$= new Item_func_microsecond($3); }
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	| MINUTE_SYM '(' expr ')'
	  { $$= new Item_func_minute($3); }
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	| MOD_SYM '(' expr ',' expr ')'
	  { $$ = new Item_func_mod( $3, $5); }
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	| MONTH_SYM '(' expr ')'
	  { $$= new Item_func_month($3); }
	| NOW_SYM optional_braces
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	  { $$= new Item_func_now_local(); Lex->safe_to_cache_query=0;}
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	| NOW_SYM '(' expr ')'
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	  { $$= new Item_func_now_local($3); Lex->safe_to_cache_query=0;}
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	| PASSWORD '(' expr ')'
6228
	  {
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	    $$= YYTHD->variables.old_passwords ?
              (Item *) new Item_func_old_password($3) :
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	      (Item *) new Item_func_password($3);
	  }
	| OLD_PASSWORD '(' expr ')'
	  { $$=  new Item_func_old_password($3); }
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	| POSITION_SYM '(' bit_expr IN_SYM expr ')'
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	  { $$ = new Item_func_locate($5,$3); }
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	| QUARTER_SYM '(' expr ')'
	  { $$ = new Item_func_quarter($3); }
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	| RAND '(' expr ')'
6240
	  { $$= new Item_func_rand($3); Lex->uncacheable(UNCACHEABLE_RAND);}
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	| RAND '(' ')'
6242
	  { $$= new Item_func_rand(); Lex->uncacheable(UNCACHEABLE_RAND);}
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	| REPLACE '(' expr ',' expr ',' expr ')'
	  { $$= new Item_func_replace($3,$5,$7); }
	| RIGHT '(' expr ',' expr ')'
	  { $$= new Item_func_right($3,$5); }
	| ROUND '(' expr ')'
	  { $$= new Item_func_round($3, new Item_int((char*)"0",0,1),0); }
	| ROUND '(' expr ',' expr ')' { $$= new Item_func_round($3,$5,0); }
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	| ROW_COUNT_SYM '(' ')'
	  {
	    $$= new Item_func_row_count();
	    Lex->safe_to_cache_query= 0;
	  }
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	| SUBDATE_SYM '(' expr ',' expr ')'
	  { $$= new Item_date_add_interval($3, $5, INTERVAL_DAY, 1);}
	| SUBDATE_SYM '(' expr ',' INTERVAL_SYM expr interval ')'
	  { $$= new Item_date_add_interval($3, $6, $7, 1); }
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	| SECOND_SYM '(' expr ')'
	  { $$= new Item_func_second($3); }
	| SUBSTRING '(' expr ',' expr ',' expr ')'
	  { $$= new Item_func_substr($3,$5,$7); }
	| SUBSTRING '(' expr ',' expr ')'
	  { $$= new Item_func_substr($3,$5); }
	| SUBSTRING '(' expr FROM expr FOR_SYM expr ')'
	  { $$= new Item_func_substr($3,$5,$7); }
	| SUBSTRING '(' expr FROM expr ')'
	  { $$= new Item_func_substr($3,$5); }
	| SUBSTRING_INDEX '(' expr ',' expr ',' expr ')'
	  { $$= new Item_func_substr_index($3,$5,$7); }
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	| SYSDATE optional_braces
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          {
            if (global_system_variables.sysdate_is_now == 0)
              $$= new Item_func_sysdate_local();
            else $$= new Item_func_now_local();
            Lex->safe_to_cache_query=0;
          }
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	| SYSDATE '(' expr ')'
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          {
            if (global_system_variables.sysdate_is_now == 0)
              $$= new Item_func_sysdate_local($3);
            else $$= new Item_func_now_local($3);
            Lex->safe_to_cache_query=0;
          }
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	| TIME_SYM '(' expr ')'
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	  { $$= new Item_time_typecast($3); }
	| TIMESTAMP '(' expr ')'
	  { $$= new Item_datetime_typecast($3); }
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	| TIMESTAMP '(' expr ',' expr ')'
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	  { $$= new Item_func_add_time($3, $5, 1, 0); }
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	| TIMESTAMP_ADD '(' interval_time_st ',' expr ',' expr ')'
	  { $$= new Item_date_add_interval($7,$5,$3,0); }
	| TIMESTAMP_DIFF '(' interval_time_st ',' expr ',' expr ')'
	  { $$= new Item_func_timestamp_diff($5,$7,$3); }
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	| TRIM '(' expr ')'
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	  { $$= new Item_func_trim($3); }
	| TRIM '(' LEADING expr FROM expr ')'
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	  { $$= new Item_func_ltrim($6,$4); }
6299
	| TRIM '(' TRAILING expr FROM expr ')'
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	  { $$= new Item_func_rtrim($6,$4); }
6301
	| TRIM '(' BOTH expr FROM expr ')'
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	  { $$= new Item_func_trim($6,$4); }
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	| TRIM '(' LEADING FROM expr ')'
	 { $$= new Item_func_ltrim($5); }
	| TRIM '(' TRAILING FROM expr ')'
	  { $$= new Item_func_rtrim($5); }
	| TRIM '(' BOTH FROM expr ')'
	  { $$= new Item_func_trim($5); }
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	| TRIM '(' expr FROM expr ')'
	  { $$= new Item_func_trim($5,$3); }
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	| TRUNCATE_SYM '(' expr ',' expr ')'
	  { $$= new Item_func_round($3,$5,1); }
6313
	| ident '.' ident '(' udf_expr_list ')'
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	  {
6315
	    LEX *lex= Lex;
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	    sp_name *name= new sp_name($1, $3);

	    name->init_qname(YYTHD);
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	    sp_add_used_routine(lex, YYTHD, name, TYPE_ENUM_FUNCTION);
6320
	    if ($5)
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	      $$= new Item_func_sp(Lex->current_context(), name, *$5);
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	    else
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	      $$= new Item_func_sp(Lex->current_context(), name);
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	    lex->safe_to_cache_query=0;
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	  }
6326
	| 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())
              {
                yyerror(ER(ER_SYNTAX_ERROR));
                YYABORT;
              }
            }
            $<udf>$= udf;
#endif
          }
          udf_expr_list ')'
          {
#ifdef HAVE_DLOPEN
            udf_func *udf= $<udf>3;
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            SELECT_LEX *sel= Select;
6349

6350
            if (udf)
6351
            {
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              if (udf->type == UDFTYPE_AGGREGATE)
                Select->in_sum_expr--;

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              Lex->binlog_row_based_if_mixed= 1;

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              switch (udf->returns) {
              case STRING_RESULT:
                if (udf->type == UDFTYPE_FUNCTION)
                {
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                  if ($4 != NULL)
                    $$ = new Item_func_udf_str(udf, *$4);
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                  else
                    $$ = new Item_func_udf_str(udf);
                }
                else
                {
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                  if ($4 != NULL)
                    $$ = new Item_sum_udf_str(udf, *$4);
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                  else
                    $$ = new Item_sum_udf_str(udf);
                }
                break;
              case REAL_RESULT:
                if (udf->type == UDFTYPE_FUNCTION)
                {
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                  if ($4 != NULL)
                    $$ = new Item_func_udf_float(udf, *$4);
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                  else
                    $$ = new Item_func_udf_float(udf);
                }
                else
                {
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                  if ($4 != NULL)
                    $$ = new Item_sum_udf_float(udf, *$4);
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                  else
                    $$ = new Item_sum_udf_float(udf);
                }
                break;
              case INT_RESULT:
                if (udf->type == UDFTYPE_FUNCTION)
                {
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                  if ($4 != NULL)
                    $$ = new Item_func_udf_int(udf, *$4);
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                  else
                    $$ = new Item_func_udf_int(udf);
                }
                else
                {
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                  if ($4 != NULL)
                    $$ = new Item_sum_udf_int(udf, *$4);
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                  else
                    $$ = new Item_sum_udf_int(udf);
                }
                break;
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              case DECIMAL_RESULT:
                if (udf->type == UDFTYPE_FUNCTION)
                {
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                  if ($4 != NULL)
                    $$ = new Item_func_udf_decimal(udf, *$4);
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                  else
                    $$ = new Item_func_udf_decimal(udf);
                }
                else
                {
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                  if ($4 != NULL)
                    $$ = new Item_sum_udf_decimal(udf, *$4);
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                  else
                    $$ = new Item_sum_udf_decimal(udf);
                }
                break;
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              default:
                YYABORT;
              }
            }
            else
#endif /* HAVE_DLOPEN */
            {
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	      LEX *lex= Lex;
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              sp_name *name= sp_name_current_db_new(YYTHD, $1);

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              sp_add_used_routine(lex, YYTHD, name, TYPE_ENUM_FUNCTION);
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              if ($4)
                $$= new Item_func_sp(Lex->current_context(), name, *$4);
6435
              else
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                $$= new Item_func_sp(Lex->current_context(), name);
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	      lex->safe_to_cache_query=0;
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	    }
          }
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	| UNIQUE_USERS '(' text_literal ',' NUM ',' NUM ',' expr_list ')'
6441
	  {
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            $$= new Item_func_unique_users($3,atoi($5.str),atoi($7.str), * $9);
	  }
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	| UNIX_TIMESTAMP '(' ')'
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	  {
	    $$= new Item_func_unix_timestamp();
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	    Lex->safe_to_cache_query=0;
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	  }
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	| UNIX_TIMESTAMP '(' expr ')'
	  { $$= new Item_func_unix_timestamp($3); }
	| USER '(' ')'
6452
	  { $$= new Item_func_user(FALSE); Lex->safe_to_cache_query=0; }
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	| UTC_DATE_SYM optional_braces
	  { $$= new Item_func_curdate_utc(); Lex->safe_to_cache_query=0;}
	| UTC_TIME_SYM optional_braces
	  { $$= new Item_func_curtime_utc(); Lex->safe_to_cache_query=0;}
	| UTC_TIMESTAMP_SYM optional_braces
	  { $$= new Item_func_now_utc(); Lex->safe_to_cache_query=0;}
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	| WEEK_SYM '(' expr ')'
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	  {
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            $$= new Item_func_week($3,new Item_int((char*) "0",
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				   YYTHD->variables.default_week_format,1));
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          }
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	| WEEK_SYM '(' expr ',' expr ')'
	  { $$= new Item_func_week($3,$5); }
	| YEAR_SYM '(' expr ')'
	  { $$= new Item_func_year($3); }
	| YEARWEEK '(' expr ')'
	  { $$= new Item_func_yearweek($3,new Item_int((char*) "0",0,1)); }
	| YEARWEEK '(' expr ',' expr ')'
	  { $$= new Item_func_yearweek($3, $5); }
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	| BENCHMARK_SYM '(' ulong_num ',' expr ')'
6473
	  {
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	    $$=new Item_func_benchmark($3,$5);
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	    Lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
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	  }
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	| EXTRACT_SYM '(' interval FROM expr ')'
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	{ $$=new Item_extract( $3, $5); };
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geometry_function:
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	  CONTAINS_SYM '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_spatial_rel($3, $5, Item_func::SP_CONTAINS_FUNC)); }
	| GEOMFROMTEXT '(' expr ')'
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	  { $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
	| GEOMFROMTEXT '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
	| GEOMFROMWKB '(' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_wkb($3)); }
	| GEOMFROMWKB '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_wkb($3, $5)); }
	| GEOMETRYCOLLECTION '(' expr_list ')'
	  { $$= GEOM_NEW(Item_func_spatial_collection(* $3,
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                           Geometry::wkb_geometrycollection,
                           Geometry::wkb_point)); }
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	| LINESTRING '(' expr_list ')'
	  { $$= GEOM_NEW(Item_func_spatial_collection(* $3,
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                  Geometry::wkb_linestring, Geometry::wkb_point)); }
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 	| MULTILINESTRING '(' expr_list ')'
	  { $$= GEOM_NEW( Item_func_spatial_collection(* $3,
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                   Geometry::wkb_multilinestring, Geometry::wkb_linestring)); }
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 	| MLINEFROMTEXT '(' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
	| MLINEFROMTEXT '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
	| MPOINTFROMTEXT '(' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
	| MPOINTFROMTEXT '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
	| MPOLYFROMTEXT '(' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
	| MPOLYFROMTEXT '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
	| MULTIPOINT '(' expr_list ')'
	  { $$= GEOM_NEW(Item_func_spatial_collection(* $3,
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                  Geometry::wkb_multipoint, Geometry::wkb_point)); }
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 	| MULTIPOLYGON '(' expr_list ')'
	  { $$= GEOM_NEW(Item_func_spatial_collection(* $3,
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                  Geometry::wkb_multipolygon, Geometry::wkb_polygon)); }
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	| POINT_SYM '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_point($3,$5)); }
 	| POINTFROMTEXT '(' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
	| POINTFROMTEXT '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
	| POLYFROMTEXT '(' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
	| POLYFROMTEXT '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
	| POLYGON '(' expr_list ')'
	  { $$= GEOM_NEW(Item_func_spatial_collection(* $3,
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	          Geometry::wkb_polygon, Geometry::wkb_linestring)); }
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 	| GEOMCOLLFROMTEXT '(' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
	| GEOMCOLLFROMTEXT '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
 	| LINEFROMTEXT '(' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3)); }
	| LINEFROMTEXT '(' expr ',' expr ')'
	  { $$= GEOM_NEW(Item_func_geometry_from_text($3, $5)); }
	;

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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->set_name($4.str, $4.length, system_charset_info);
            $2->is_autogenerated_name= FALSE;
          }
6589
	  else
6590
	    $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 ')'
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	  { $$=new Item_sum_std($3, 0); }
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	| VARIANCE_SYM '(' in_sum_expr ')'
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	  { $$=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 ')'
6640
	  { $$=new Item_sum_sum($3); }
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	| SUM_SYM '(' DISTINCT in_sum_expr ')'
	  { $$=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,
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                                          sel->gorder_list, $7);
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	    $5->empty();
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	  };

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

opt_gconcat_separator:
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    /* empty */        { $$ = new (YYTHD->mem_root) String(",",1,default_charset_info); }
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    |SEPARATOR_SYM text_string  { $$ = $2; };
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opt_gorder_clause:
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	  /* 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,
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				     sizeof(st_sql_list));
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	    select->order_list.empty();
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	  };
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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())
	  {
6686
	    yyerror(ER(ER_SYNTAX_ERROR));
6687
	    YYABORT;
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	  }
	}
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	expr
	{
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	  Select->in_sum_expr--;
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	  $$= $3;
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	};
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cast_type:
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        BINARY opt_len		{ $$=ITEM_CAST_CHAR; Lex->charset= &my_charset_bin; Lex->dec= 0; }
        | CHAR_SYM opt_len opt_binary	{ $$=ITEM_CAST_CHAR; Lex->dec= 0; }
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	| NCHAR_SYM opt_len	{ $$=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; }
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	;

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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:
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        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 */      { $$= NULL; }
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	| expr           { $$= $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; }
        | join_table            { $$=$1; }
6763
          {
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	    LEX *lex= Lex;
            if (!($$= lex->current_select->nest_last_join(lex->thd)))
              YYABORT;
6767
          }
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        ;

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join_table_list:
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	derived_table_list		{ YYERROR_UNLESS($$=$1); }
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	;
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/* Warning - may return NULL in case of incomplete SELECT */
derived_table_list:
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        table_ref { $$=$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.
*/
6790
join_table:
6791
/* 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
6798
          { YYERROR_UNLESS($1 && ($$=$3)); }
6799
	| table_ref STRAIGHT_JOIN table_factor
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	  { YYERROR_UNLESS($1 && ($$=$3)); $3->straight=1; }
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	| table_ref normal_join table_ref
          ON
          {
            YYERROR_UNLESS($1 && ($$=$3));
            /* Change the current name resolution context to a local context. */
6806
            if (push_new_name_resolution_context(YYTHD, $1, $3))
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              YYABORT;
          }
          expr
	  {
            add_join_on($3,$6);
            Lex->pop_context();
          }
        | table_ref STRAIGHT_JOIN table_factor
          ON
          {
            YYERROR_UNLESS($1 && ($$=$3));
            /* Change the current name resolution context to a local context. */
6819
            if (push_new_name_resolution_context(YYTHD, $1, $3))
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              YYABORT;
          }
          expr
          {
            $3->straight=1;
            add_join_on($3,$6);
            Lex->pop_context();
          }
6828
	| 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
          {
6846
            YYERROR_UNLESS($1 && $5);
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            /* Change the current name resolution context to a local context. */
6848
            if (push_new_name_resolution_context(YYTHD, $1, $5))
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              YYABORT;
          }
          expr
	  {
            add_join_on($5,$8);
            Lex->pop_context();
            $5->outer_join|=JOIN_TYPE_LEFT;
            $$=$5;
          }
6858
	| table_ref LEFT opt_outer JOIN_SYM table_factor
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	  {
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	    SELECT_LEX *sel= Select;
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            YYERROR_UNLESS($1 && $5);
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	  }
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	  USING '(' using_list ')'
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          { add_join_natural($1,$5,$9); $5->outer_join|=JOIN_TYPE_LEFT; $$=$5; }
6865
	| table_ref NATURAL LEFT opt_outer JOIN_SYM table_factor
6866
	  {
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            YYERROR_UNLESS($1 && $6);
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 	    add_join_natural($1,$6,NULL);
6869
	    $6->outer_join|=JOIN_TYPE_LEFT;
6870 6871
	    $$=$6;
	  }
6872 6873

/* RIGHT JOIN variants */
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	| table_ref RIGHT opt_outer JOIN_SYM table_ref
          ON
          {
6877
            YYERROR_UNLESS($1 && $5);
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            /* Change the current name resolution context to a local context. */
6879
            if (push_new_name_resolution_context(YYTHD, $1, $5))
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              YYABORT;
          }
          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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          }
	| 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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	  }
6895
	  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);
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          }
	| table_ref NATURAL RIGHT opt_outer JOIN_SYM table_factor
6903
	  {
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            YYERROR_UNLESS($1 && $6);
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	    add_join_natural($6,$1,NULL);
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	    LEX *lex= Lex;
            if (!($$= lex->current_select->convert_right_join()))
              YYABORT;
6909
	  };
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normal_join:
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	JOIN_SYM		{}
	| INNER_SYM JOIN_SYM	{}
	| CROSS JOIN_SYM	{}
	;
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/* Warning - may return NULL in case of incomplete SELECT */
6918
table_factor:
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	{
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	  SELECT_LEX *sel= Select;
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	  sel->use_index_ptr=sel->ignore_index_ptr=0;
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	  sel->table_join_options= 0;
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	}
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        table_ident opt_table_alias opt_key_definition
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	{
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	  LEX *lex= Lex;
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	  SELECT_LEX *sel= lex->current_select;
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	  if (!($$= 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,
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					   sel->get_use_index(),
					   sel->get_ignore_index())))
6933
	    YYABORT;
6934
          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. */
6940
            if (push_new_name_resolution_context(YYTHD, $3, $7))
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              YYABORT;
6942

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          }
          expr '}'
	  {
            YYERROR_UNLESS($3 && $7);
            add_join_on($7,$10);
            Lex->pop_context();
            $7->outer_join|=JOIN_TYPE_LEFT;
            $$=$7;
          }
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	| select_derived_init get_select_lex select_derived2
6953
          {
6954
            LEX *lex= Lex;
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            SELECT_LEX *sel= lex->current_select;
            if ($1)
            {
	      if (sel->set_braces(1))
	      {
	        yyerror(ER(ER_SYNTAX_ERROR));
	        YYABORT;
	      }
              /* select in braces, can't contain global parameters */
	      if (sel->master_unit()->fake_select_lex)
                sel->master_unit()->global_parameters=
                   sel->master_unit()->fake_select_lex;
            }
            if ($2->init_nested_join(lex->thd))
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              YYABORT;
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            $$= 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. */
6973
          }
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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)
6981
          {
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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)" */
            $$= 0;
6987
          }
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          else
          if (!$3)
          {
            /* Handle case of derived table, alias may be NULL if there
               are no outer parentheses, add_table_to_list() will throw
               error in this case */
	    LEX *lex=Lex;
            SELECT_LEX *sel= lex->current_select;
	    SELECT_LEX_UNIT *unit= sel->master_unit();
	    lex->current_select= sel= unit->outer_select();
	    if (!($$= 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 */
7020
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;
7046
	  lex->derived_tables|= DERIVED_SUBQUERY;
7047 7048
          if (lex->sql_command == (int)SQLCOM_HA_READ ||
              lex->sql_command == (int)SQLCOM_KILL)
7049 7050
	  {
	    yyerror(ER(ER_SYNTAX_ERROR));
7051 7052
	    YYABORT;
	  }
7053
	  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);
7057
	  lex->current_select->linkage= DERIVED_TABLE_TYPE;
7058
	  lex->current_select->parsing_place= SELECT_LIST;
7059 7060 7061
	}
        select_options select_item_list
	{
7062
	  Select->parsing_place= NO_MATTER;
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	}
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	opt_select_from
7065
        ;
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get_select_lex:
	/* Empty */ { $$= Select; }
        ;

select_derived_init:
          SELECT_SYM
          {
            LEX *lex= Lex;
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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,
7131
				    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,
7135
				    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,
7139
				    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));
            $$= $1;
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	  };
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interval:
7159 7160
	interval_time_st	{}
	| DAY_HOUR_SYM		{ $$=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	{ $$=INTERVAL_MINUTE_SECOND; }
7170 7171 7172 7173 7174 7175 7176 7177
	| SECOND_MICROSECOND_SYM	{ $$=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; }
7180
	| QUARTER_SYM		{ $$=INTERVAL_QUARTER; }
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	| SECOND_SYM		{ $$=INTERVAL_SECOND; }
7182 7183
	| YEAR_SYM		{ $$=INTERVAL_YEAR; }
        ;
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7185
date_time_type:
7186 7187 7188 7189 7190
          DATE_SYM              {$$=MYSQL_TIMESTAMP_DATE;}
        | TIME_SYM              {$$=MYSQL_TIMESTAMP_TIME;}
        | DATETIME              {$$=MYSQL_TIMESTAMP_DATETIME;}
        | TIMESTAMP             {$$=MYSQL_TIMESTAMP_DATETIME;}
        ;
7191

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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
7214
	  {
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            SELECT_LEX *select= Select;
	    select->where= $3;
            select->parsing_place= NO_MATTER;
	    if ($3)
	      $3->top_level_item();
7220
	  }
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 	;
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having_clause:
	/* empty */
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	| HAVING
	  {
7227
	    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;
7233
	    sel->parsing_place= NO_MATTER;
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	    if ($3)
	      $3->top_level_item();
	  }
7237
	;
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opt_escape:
7240 7241 7242 7243 7244
	ESCAPE_SYM simple_expr 
          {
            Lex->escape_used= TRUE;
            $$= $2;
          }
7245
	| /* empty */
7246
          {
7247
            Lex->escape_used= FALSE;
7248 7249 7250
            $$= ((YYTHD->variables.sql_mode & MODE_NO_BACKSLASH_ESCAPES) ?
		 new Item_string("", 0, &my_charset_latin1) :
                 new Item_string("\\", 1, &my_charset_latin1));
7251 7252
          }
        ;
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/*
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   group by statement in select
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*/

group_clause:
	/* empty */
7261
	| 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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7269 7270
olap_opt:
	/* empty */ {}
7271
	| WITH CUBE_SYM
7272
          {
7273
	    LEX *lex=Lex;
7274 7275
	    if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE)
	    {
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	      my_error(ER_WRONG_USAGE, MYF(0), "WITH CUBE",
7277 7278 7279
		       "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");
7282
	    YYABORT;	/* To be deleted in 5.1 */
7283
	  }
7284
	| WITH ROLLUP_SYM
7285
          {
7286 7287 7288
	    LEX *lex= Lex;
	    if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE)
	    {
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	      my_error(ER_WRONG_USAGE, MYF(0), "WITH ROLLUP",
7290 7291 7292
		       "global union parameters");
	      YYABORT;
	    }
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	    lex->current_select->olap= ROLLUP_TYPE;
7294
	  }
7295
	;
7296

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/*
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   Order by statement in select
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*/

7301
opt_order_clause:
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	/* empty */
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	| order_clause;
7304 7305

order_clause:
7306 7307
	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)
7313
	  {
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	    my_error(ER_WRONG_USAGE, MYF(0),
                     "CUBE/ROLLUP", "ORDER BY");
7316 7317
	    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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7349 7350 7351
opt_limit_clause_init:
	/* empty */
	{
7352 7353
	  LEX *lex= Lex;
	  SELECT_LEX *sel= lex->current_select;
7354 7355
          sel->offset_limit= 0;
          sel->select_limit= 0;
7356
	}
7357 7358 7359
	| limit_clause {}
	;

7360 7361 7362 7363 7364
opt_limit_clause:
	/* empty */	{}
	| limit_clause	{}
	;

7365
limit_clause:
7366
	LIMIT limit_options {}
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	;
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limit_options:
7370
	limit_option
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	  {
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            SELECT_LEX *sel= Select;
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            sel->select_limit= $1;
7374
            sel->offset_limit= 0;
7375
	    sel->explicit_limit= 1;
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	  }
7377
	| limit_option ',' limit_option
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7378
	  {
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	    SELECT_LEX *sel= Select;
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	    sel->select_limit= $3;
	    sel->offset_limit= $1;
7382
	    sel->explicit_limit= 1;
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	  }
7384
	| limit_option OFFSET_SYM limit_option
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7385
	  {
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	    SELECT_LEX *sel= Select;
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	    sel->select_limit= $1;
	    sel->offset_limit= $3;
7389
	    sel->explicit_limit= 1;
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	  }
	;
7392 7393 7394 7395 7396
limit_option:
        param_marker
        | ULONGLONG_NUM { $$= new Item_uint($1.str, $1.length); }
        | LONG_NUM     { $$= new Item_uint($1.str, $1.length); }
        | NUM           { $$= new Item_uint($1.str, $1.length); }
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        ;
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delete_limit_clause:
	/* empty */
	{
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	  LEX *lex=Lex;
7403
	  lex->current_select->select_limit= 0;
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	}
7405
	| LIMIT limit_option
7406 7407
	{
	  SELECT_LEX *sel= Select;
7408
	  sel->select_limit= $2;
7409 7410
	  sel->explicit_limit= 1;
	};
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ulong_num:
          NUM           { int error; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
7414
	| 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; $$= (ulong) my_strtoll10($1.str, (char**) 0, &error); }
	;
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ulonglong_num:
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	NUM	    { int error; $$= (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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procedure_clause:
	/* empty */
	| PROCEDURE ident			/* Procedure name */
	  {
	    LEX *lex=Lex;
7434 7435
	    if (&lex->select_lex != lex->current_select)
	    {
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	      my_error(ER_WRONG_USAGE, MYF(0), "PROCEDURE", "subquery");
7437 7438
	      YYABORT;
	    }
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	    lex->proc_list.elements=0;
	    lex->proc_list.first=0;
	    lex->proc_list.next= (byte**) &lex->proc_list.first;
7442 7443 7444 7445
	    if (add_proc_to_list(lex->thd, new Item_field(&lex->
                                                          current_select->
                                                          context,
                                                          NULL,NULL,$2.str)))
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	      YYABORT;
7447
	    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)
7467 7468
	      $2->set_name($1,(uint) ((char*) lex->tok_end - $1),
                           YYTHD->charset());
7469 7470 7471 7472 7473 7474
	  }
          ;


select_var_list_init:
	   {
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             LEX *lex=Lex;
	     if (!lex->describe && (!(lex->result= new select_dumpvar())))
7477 7478
	        YYABORT;
	   }
7479
	   select_var_list
7480
	   {}
7481
           ;
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7482

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select_var_list:
7484 7485 7486 7487
	   select_var_list ',' select_var_ident
	   | select_var_ident {}
           ;

7488 7489 7490 7491 7492 7493 7494 7495 7496 7497
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
	       YYABORT;
	   }
           | ident_or_text
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           {
7499
             LEX *lex=Lex;
7500
	     sp_variable_t *t;
7501

7502
	     if (!lex->spcont || !(t=lex->spcont->find_variable(&$1)))
7503
	     {
7504
	       my_error(ER_SP_UNDECLARED_VAR, MYF(0), $1.str);
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	       YYABORT;
7506 7507 7508 7509 7510
	     }
	     if (! lex->result)
	       YYABORT;
	     else
	     {
7511 7512 7513
               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
7515
	       if (var)
7516
		 var->sp= lex->sphead;
7517
#endif
7518
	     }
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	   }
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           ;
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7522
into:
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        INTO OUTFILE TEXT_STRING_filesystem
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	{
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          LEX *lex= Lex;
7526 7527 7528 7529
          lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
          if (!(lex->exchange= new sql_exchange($3.str, 0)) ||
              !(lex->result= new select_export(lex->exchange)))
            YYABORT;
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	}
	opt_field_term opt_line_term
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	| INTO DUMPFILE TEXT_STRING_filesystem
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	{
7534
	  LEX *lex=Lex;
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	  if (!lex->describe)
	  {
7537
	    lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
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	    if (!(lex->exchange= new sql_exchange($3.str,1)))
	      YYABORT;
	    if (!(lex->result= new select_dump(lex->exchange)))
	      YYABORT;
	  }
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	}
7544
        | INTO select_var_list_init
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	{
7546
	  Lex->uncacheable(UNCACHEABLE_SIDEEFFECT);
7547 7548
	}
        ;
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/*
  DO statement
*/
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7554
do:	DO_SYM
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	{
	  LEX *lex=Lex;
	  lex->sql_command = SQLCOM_DO;
7558 7559 7560 7561 7562
	  mysql_init_select(lex);
	}
	expr_list
	{
	  Lex->insert_list= $3;
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	}
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	;

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/*
7567
  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;
7575 7576
	  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;
7582 7583 7584
	     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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	 }
7596
	| 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");
7602 7603
	      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");
7614 7615 7616 7617 7618
	      YYABORT;
	    }
	    lex->sql_command = SQLCOM_DROP_PROCEDURE;
	    lex->drop_if_exists= $3;
	    lex->spname= $4;
7619
	  }
7620
	| DROP USER clear_privileges user_list
7621
	  {
7622 7623
	    Lex->sql_command = SQLCOM_DROP_USER;
          }
7624 7625
	| DROP VIEW_SYM if_exists table_list opt_restrict
	  {
7626
	    LEX *lex= Lex;
7627 7628 7629
	    lex->sql_command= SQLCOM_DROP_VIEW;
	    lex->drop_if_exists= $3;
	  }
7630 7631 7632 7633 7634 7635
        | DROP EVENT_SYM if_exists sp_name
          {
            LEX *lex=Lex;

            if (lex->et)
            {
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              /*
                Recursive events are not possible because recursive SPs
                are not also possible. lex->sp_head is not stacked.
              */
7640 7641 7642 7643
              my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "EVENT");
              YYABORT;
            }

7644
            if (!(lex->et= new (YYTHD->mem_root) Event_timed()))
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              YYABORT;
7646
	  
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            if (!lex->et_compile_phase)
            {
              lex->et->init_name(YYTHD, $4);
              lex->et->init_definer(YYTHD);
            }

7653 7654 7655
            lex->sql_command = SQLCOM_DROP_EVENT;
            lex->drop_if_exists= $3;
          }
7656
        | DROP TRIGGER_SYM sp_name
7657 7658 7659
          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_DROP_TRIGGER;
7660
            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;
7671 7672
          }
	;
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table_list:
7675
	table_name
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	| table_list ',' table_name;
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7678
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:
7687
	/* empty */ { $$= 0; }
7688 7689
	| IF EXISTS { $$= 1; }
	;
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opt_temporary:
	/* empty */ { $$= 0; }
	| TEMPORARY { $$= 1; }
	;
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/*
** Insert : add new data to table
*/

insert:
7700 7701 7702
	INSERT
	{
	  LEX *lex= Lex;
7703 7704
	  lex->sql_command= SQLCOM_INSERT;
	  lex->duplicates= DUP_ERROR; 
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	  mysql_init_select(lex);
7706 7707 7708
	  /* for subselects */
          lex->lock_option= (using_update_log) ? TL_READ_NO_INSERT : TL_READ;
	} insert_lock_option
7709
	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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	}
7714
	insert_field_spec opt_insert_update
7715
	{}
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	;
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replace:
7719 7720
	REPLACE
	{
7721
	  LEX *lex=Lex;
7722 7723
	  lex->sql_command = SQLCOM_REPLACE;
	  lex->duplicates= DUP_REPLACE;
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	  mysql_init_select(lex);
7725
	}
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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
7732
	{}
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	;
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insert_lock_option:
7736 7737 7738 7739 7740 7741 7742 7743 7744 7745 7746 7747 7748
	/* 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 { $$= TL_WRITE; }
7752
	;
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replace_lock_option:
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	opt_low_priority { $$= $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:
7763
	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 {}
7793
        ;
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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:
7805
	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:
7853
	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
7861 7862
        ;

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/* Update rows in a table */

update:
7866 7867
	UPDATE_SYM
	{
7868
	  LEX *lex= Lex;
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	  mysql_init_select(lex);
7870
          lex->sql_command= SQLCOM_UPDATE;
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	  lex->lock_option= TL_UNLOCK; 	/* Will be set later */
7872
	  lex->duplicates= DUP_ERROR; 
7873
        }
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        opt_low_priority opt_ignore join_table_list
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	SET update_list
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	{
7877 7878
	  LEX *lex= Lex;
          if (lex->select_lex.table_list.elements > 1)
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            lex->sql_command= SQLCOM_UPDATE_MULTI;
7880 7881 7882
	  else if (lex->select_lex.get_table_list()->derived)
	  {
	    /* it is single table update and it is update of derived table */
7883 7884
	    my_error(ER_NON_UPDATABLE_TABLE, MYF(0),
                     lex->select_lex.get_table_list()->alias, "UPDATE");
7885 7886
	    YYABORT;
	  }
7887 7888 7889 7890 7891 7892
          /*
            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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	}
7894
	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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7903
	{
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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:
7922
	/* empty */	{ $$= YYTHD->update_lock_default; }
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	| LOW_PRIORITY	{ $$= TL_WRITE_LOW_PRIORITY; };
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/* Delete rows from a table */

delete:
7928
	DELETE_SYM
7929
	{
7930 7931
	  LEX *lex= Lex;
	  lex->sql_command= SQLCOM_DELETE;
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7932
	  mysql_init_select(lex);
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7933
	  lex->lock_option= lex->thd->update_lock_default;
7934
	  lex->ignore= 0;
7935
	  lex->select_lex.init_order();
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	}
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	opt_delete_options single_multi {}
	;
7939 7940

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
7948
	delete_limit_clause {}
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	| table_wild_list
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7950
	  { mysql_init_multi_delete(Lex); }
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7951
          FROM join_table_list where_clause
7952 7953 7954 7955
          { 
            if (multi_delete_set_locks_and_link_aux_tables(Lex))
              YYABORT;
          }
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	| FROM table_wild_list
	  { mysql_init_multi_delete(Lex); }
7958
	  USING join_table_list where_clause
7959 7960 7961 7962
          { 
            if (multi_delete_set_locks_and_link_aux_tables(Lex))
              YYABORT;
          }
7963
	;
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table_wild_list:
	  table_wild_one {}
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7967
	  | table_wild_list ',' table_wild_one {};
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table_wild_one:
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7970
	ident opt_wild opt_table_alias
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7971
	{
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	  if (!Select->add_table_to_list(YYTHD, new Table_ident($1), $3,
					 TL_OPTION_UPDATING, Lex->lock_option))
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	    YYABORT;
        }
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	| ident '.' ident opt_wild opt_table_alias
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7977
	  {
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	    if (!Select->add_table_to_list(YYTHD,
					   new Table_ident(YYTHD, $1, $3, 0),
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					   $5, TL_OPTION_UPDATING,
					   Lex->lock_option))
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	      YYABORT;
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	  }
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	;
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opt_wild:
7987
	/* empty */	{}
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	| '.' '*'	{};
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7991
opt_delete_options:
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	/* empty */	{}
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	| opt_delete_option opt_delete_options {};
7994 7995

opt_delete_option:
7996
	QUICK		{ Select->options|= OPTION_QUICK; }
7997
	| LOW_PRIORITY	{ Lex->lock_option= TL_WRITE_LOW_PRIORITY; }
7998
	| IGNORE_SYM	{ Lex->ignore= 1; };
7999

8000
truncate:
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8001
	TRUNCATE_SYM opt_table_sym table_name
8002
	{
8003
	  LEX* lex= Lex;
8004
	  lex->sql_command= SQLCOM_TRUNCATE;
8005
	  lex->select_lex.options= 0;
8006
	  lex->select_lex.init_order();
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	}
	;
8009

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opt_table_sym:
	/* empty */
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	| TABLE_SYM;
8013

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/* Show things */

8016 8017
show:	SHOW
	{
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	  LEX *lex=Lex;
	  lex->wild=0;
8020 8021 8022
          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
8026 8027
	{}
	;
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show_param:
8030
         DATABASES wild_and_where
8031 8032 8033 8034 8035 8036 8037
         {
           LEX *lex= Lex;
           lex->sql_command= SQLCOM_SELECT;
           lex->orig_sql_command= SQLCOM_SHOW_DATABASES;
           if (prepare_schema_table(YYTHD, lex, 0, SCH_SCHEMATA))
             YYABORT;
         }
8038
         | opt_full TABLES opt_db wild_and_where
8039 8040 8041 8042
           {
             LEX *lex= Lex;
             lex->sql_command= SQLCOM_SELECT;
             lex->orig_sql_command= SQLCOM_SHOW_TABLES;
8043
             lex->select_lex.db= $3;
8044 8045 8046
             if (prepare_schema_table(YYTHD, lex, 0, SCH_TABLE_NAMES))
               YYABORT;
           }
8047 8048 8049 8050 8051 8052 8053 8054 8055
         | opt_full TRIGGERS_SYM opt_db wild_and_where
           {
             LEX *lex= Lex;
             lex->sql_command= SQLCOM_SELECT;
             lex->orig_sql_command= SQLCOM_SHOW_TRIGGERS;
             lex->select_lex.db= $3;
             if (prepare_schema_table(YYTHD, lex, 0, SCH_TRIGGERS))
               YYABORT;
           }
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         | opt_full EVENTS_SYM opt_db wild_and_where
           {
             LEX *lex= Lex;
             lex->sql_command= SQLCOM_SELECT;
             lex->orig_sql_command= SQLCOM_SHOW_EVENTS;
             lex->select_lex.db= $3;
             if (prepare_schema_table(YYTHD, lex, 0, SCH_EVENTS))
               YYABORT;
           }
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         | TABLE_SYM STATUS_SYM opt_db wild_and_where
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           {
             LEX *lex= Lex;
             lex->sql_command= SQLCOM_SELECT;
             lex->orig_sql_command= SQLCOM_SHOW_TABLE_STATUS;
8070
             lex->select_lex.db= $3;
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             if (prepare_schema_table(YYTHD, lex, 0, SCH_TABLES))
               YYABORT;
           }
8074
        | OPEN_SYM TABLES opt_db wild_and_where
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	  {
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	    LEX *lex= Lex;
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            lex->sql_command= SQLCOM_SELECT;
            lex->orig_sql_command= SQLCOM_SHOW_OPEN_TABLES;
8079
	    lex->select_lex.db= $3;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_OPEN_TABLES))
              YYABORT;
8082
	  }
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        | opt_full PLUGIN_SYM
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	  {
	    LEX *lex= Lex;
	    WARN_DEPRECATED(yythd, "5.2", "SHOW PLUGIN", "'SHOW PLUGINS'");
            lex->sql_command= SQLCOM_SELECT;
            lex->orig_sql_command= SQLCOM_SHOW_PLUGINS;
            if (prepare_schema_table(YYTHD, lex, 0, SCH_PLUGINS))
              YYABORT;
	  }
        | PLUGINS_SYM
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	  {
	    LEX *lex= Lex;
            lex->sql_command= SQLCOM_SELECT;
            lex->orig_sql_command= SQLCOM_SHOW_PLUGINS;
            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
8103
	| ENGINE_SYM ALL 
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	  { Lex->create_info.db_type= NULL; }
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	  show_engine_param
8106
	| opt_full COLUMNS from_or_in table_ident opt_db wild_and_where
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	  {
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 	    LEX *lex= Lex;
	    lex->sql_command= SQLCOM_SELECT;
	    lex->orig_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;
	  }
8116
        | 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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          }
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        | 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;
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          } opt_limit_clause_init
8139
        | keys_or_index from_or_in table_ident opt_db where_clause
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          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SELECT;
            lex->orig_sql_command= SQLCOM_SHOW_KEYS;
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	    if ($4)
	      $3->change_db($4);
            if (prepare_schema_table(YYTHD, lex, $3, SCH_STATISTICS))
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              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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            lex->orig_sql_command= SQLCOM_SHOW_AUTHORS;
            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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	| PRIVILEGES
	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_SHOW_PRIVILEGES;
	  }
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        | COUNT_SYM '(' '*' ')' WARNINGS
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          { (void) create_select_for_variable("warning_count"); }
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        | COUNT_SYM '(' '*' ')' ERRORS
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	  { (void) create_select_for_variable("error_count"); }
8182
        | WARNINGS opt_limit_clause_init
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          { Lex->sql_command = SQLCOM_SHOW_WARNS;}
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        | ERRORS opt_limit_clause_init
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          { Lex->sql_command = SQLCOM_SHOW_ERRORS;}
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        | opt_var_type STATUS_SYM wild_and_where
8187
          {
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            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SELECT;
            lex->orig_sql_command= SQLCOM_SHOW_STATUS;
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            lex->option_type= $1;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_STATUS))
              YYABORT;
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	  }
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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;
            }
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            WARN_DEPRECATED(yythd, "5.2", "SHOW INNODB STATUS", "'SHOW ENGINE INNODB STATUS'");
8206
	  }
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        | MUTEX_SYM STATUS_SYM
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          {
	    LEX *lex= Lex;
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            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;
            }
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            WARN_DEPRECATED(yythd, "5.2", "SHOW MUTEX STATUS", "'SHOW ENGINE INNODB MUTEX'");
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	  }
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	| opt_full PROCESSLIST_SYM
	  { Lex->sql_command= SQLCOM_SHOW_PROCESSLIST;}
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        | opt_var_type  VARIABLES wild_and_where
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	  {
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            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SELECT;
            lex->orig_sql_command= SQLCOM_SHOW_VARIABLES;
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            lex->option_type= $1;
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            if (prepare_schema_table(YYTHD, lex, 0, SCH_VARIABLES))
              YYABORT;
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	  }
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        | charset wild_and_where
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          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SELECT;
            lex->orig_sql_command= SQLCOM_SHOW_CHARSETS;
            if (prepare_schema_table(YYTHD, lex, 0, SCH_CHARSETS))
              YYABORT;
          }
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        | COLLATION_SYM wild_and_where
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          {
            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SELECT;
            lex->orig_sql_command= SQLCOM_SHOW_COLLATIONS;
            if (prepare_schema_table(YYTHD, lex, 0, SCH_COLLATIONS))
              YYABORT;
          }
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	| BERKELEY_DB_SYM LOGS_SYM
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	  {
	    LEX *lex= Lex;
	    lex->sql_command= SQLCOM_SHOW_ENGINE_LOGS;
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            if (!(lex->create_info.db_type=
                  ha_resolve_by_legacy_type(YYTHD, DB_TYPE_BERKELEY_DB)))
            {
	      my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), "BerkeleyDB");
	      YYABORT;
            }
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	    WARN_DEPRECATED(yythd, "5.2", "SHOW BDB LOGS", "'SHOW ENGINE BDB LOGS'");
8257
	  }
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	| LOGS_SYM
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	  {
	    LEX *lex= Lex;
	    lex->sql_command= SQLCOM_SHOW_ENGINE_LOGS;
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            if (!(lex->create_info.db_type=
                  ha_resolve_by_legacy_type(YYTHD, DB_TYPE_BERKELEY_DB)))
            {
	      my_error(ER_UNKNOWN_STORAGE_ENGINE, MYF(0), "BerkeleyDB");
	      YYABORT;
            }
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	    WARN_DEPRECATED(yythd, "5.2", "SHOW LOGS", "'SHOW ENGINE BDB LOGS'");
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	  }
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	| GRANTS
	  {
	    LEX *lex=Lex;
	    lex->sql_command= SQLCOM_SHOW_GRANTS;
	    THD *thd= lex->thd;
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            Security_context *sctx= thd->security_ctx;
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	    LEX_USER *curr_user;
            if (!(curr_user= (LEX_USER*) thd->alloc(sizeof(st_lex_user))))
              YYABORT;
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            curr_user->user.str= sctx->priv_user;
            curr_user->user.length= strlen(sctx->priv_user);
            if (*sctx->priv_host != 0)
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            {
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              curr_user->host.str= sctx->priv_host;
              curr_user->host.length= strlen(sctx->priv_host);
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            }
            else
            {
              curr_user->host.str= (char *) "%";
              curr_user->host.length= 1;
            }
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            curr_user->password=null_lex_str;
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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;
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	    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;
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            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;
	  }
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	| PROCEDURE STATUS_SYM wild_and_where
8346
	  {
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            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SELECT;
            lex->orig_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;
8354
	  }
8355
	| FUNCTION_SYM STATUS_SYM wild_and_where
8356
	  {
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            LEX *lex= Lex;
            lex->sql_command= SQLCOM_SELECT;
            lex->orig_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->sql_command = SQLCOM_SHOW_CREATE_EVENT;
            Lex->spname= $3;
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            Lex->et= new (YYTHD->mem_root) Event_timed();
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            if (!Lex->et)
              YYABORT;
            Lex->et->init_definer(YYTHD);
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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
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	  { 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;
          lex->sql_command= SQLCOM_SELECT;
          lex->orig_sql_command= SQLCOM_SHOW_FIELDS;
          lex->select_lex.db= 0;
          lex->verbose= 0;
          if (prepare_schema_table(YYTHD, lex, $2, SCH_COLUMNS))
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	    YYABORT;
	}
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	opt_describe_column {}
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	| describe_command opt_extended_describe
	  { Lex->describe|= DESCRIBE_NORMAL; }
	  select
8465
          {
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	    LEX *lex=Lex;
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	    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:
8492
	FLUSH_SYM opt_no_write_to_binlog
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	{
	  LEX *lex=Lex;
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	  if (lex->sphead && lex->sphead->m_type != TYPE_ENUM_PROCEDURE)
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	  {
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            /*
              Note that both FLUSH TABLES and FLUSH PRIVILEGES will break
              execution in prelocked mode. So it is better to disable
              FLUSH in stored functions and triggers completely.
            */
            my_error(ER_STMT_NOT_ALLOWED_IN_SF_OR_TRG, MYF(0), "FLUSH");
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	    YYABORT;
	  }
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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:
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	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:
8561
	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 { Lex->sql_command= SQLCOM_KILL; } 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($4);
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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; }
        ;
8594

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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
        {
8621
	  LEX *lex=Lex;
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          WARN_DEPRECATED(yythd, "5.2", "LOAD TABLE FROM MASTER",
                          "MySQL Administrator (mysqldump, mysql)");
8624
          if (lex->sphead)
8625 8626 8627 8628 8629
	  {
	    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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	}
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        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
        {}
8664
        |
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	FROM MASTER_SYM
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        {
	  Lex->sql_command = SQLCOM_LOAD_MASTER_DATA;
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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; }
8692
	| 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:
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	TERMINATED BY text_string 
          {
8705
            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;
8711
            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
8716
          {
8717
            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->enclosed= $3;
          }
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        | ESCAPED BY text_string
8721
          {
8722
            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
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          {
8737
            DBUG_ASSERT(Lex->exchange != 0);
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            Lex->exchange->line_term= $3;
          }
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        | STARTING BY text_string
8741
          {
8742
            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
          {
8750
            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:
8780
	TEXT_STRING_literal
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	{
	  THD *thd= YYTHD;
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	  $$ = new Item_string($1.str,$1.length,thd->variables.collation_connection);
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	}
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	| NCHAR_STRING
8786
	{ $$=  new Item_string($1.str,$1.length,national_charset_info); }
8787
	| UNDERSCORE_CHARSET TEXT_STRING
8788
	  { $$ = new Item_string($2.str,$2.length,Lex->charset); }
8789
	| text_literal TEXT_STRING_literal
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	  { ((Item_string*) $1)->append($2.str,$2.length); }
	;
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text_string:
8794
	TEXT_STRING_literal
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	{ $$=  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);
8799
	    /*
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	      it is OK only emulate fix_fields, because we need only
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              value of constant
	    */
	    $$= tmp ?
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	      tmp->quick_fix_field(), tmp->val_str((String*) 0) :
8805
	      (String*) 0;
8806
	  }
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        | BIN_NUM
          {
	    Item *tmp= new Item_bin_string($1.str, $1.length);
	    /*
	      it is OK only emulate fix_fields, because we need only
              value of constant
	    */
	    $$= tmp ? tmp->quick_fix_field(), tmp->val_str((String*) 0) :
		      (String*) 0;
          }
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	;

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param_marker:
8820
        PARAM_MARKER
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        {
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          THD *thd=YYTHD;
	  LEX *lex= thd->lex;
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          Item_param *item= new Item_param((uint) (lex->tok_start -
                                                   (uchar *) thd->query));
          if (!($$= item) || lex->param_list.push_back(item))
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          {
8828
            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; }
8837 8838
	| '-' NUM_literal
	  {
8839
	    $2->max_length++;
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	    $$= $2->neg();
8841
	  }
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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	{ $$ =	new Item_null();
8849
			  Lex->next_state=MY_LEX_OPERATOR_OR_IDENT;}
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	| FALSE_SYM	{ $$= 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	{ $$= new Item_bin_string($1.str, $1.length); }
8854
	| UNDERSCORE_CHARSET HEX_NUM
8855
	  {
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	    Item *tmp= new Item_hex_string($2.str, $2.length);
8857
	    /*
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	      it is OK only emulate fix_fieds, because we need only
8859 8860 8861
              value of constant
	    */
	    String *str= tmp ?
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	      tmp->quick_fix_field(), tmp->val_str((String*) 0) :
8863
	      (String*) 0;
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	    $$= new Item_string(str ? str->ptr() : "",
				str ? str->length() : 0,
				Lex->charset);
8867
	  }
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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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8886
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); }
8889
	| ULONGLONG_NUM	{ $$ =	new Item_uint($1.str, $1.length); }
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        | DECIMAL_NUM
8891
	{
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           $$= 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;
	   }
	}
8906
	;
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/**********************************************************************
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** Creating different items.
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**********************************************************************/

insert_ident:
8913
	simple_ident_nospvar { $$=$1; }
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	| table_wild	 { $$=$1; };
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table_wild:
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	ident '.' '*'
8918
	{
8919
          SELECT_LEX *sel= Select;
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	  $$ = new Item_field(Lex->current_context(), NullS, $1.str, "*");
8921
	  sel->with_wild++;
8922
	}
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	| ident '.' ident '.' '*'
8924
	{
8925
          SELECT_LEX *sel= Select;
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	  $$ = new Item_field(Lex->current_context(), (YYTHD->client_capabilities &
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                             CLIENT_NO_SCHEMA ? NullS : $1.str),
                             $3.str,"*");
8929
	  sel->with_wild++;
8930 8931
	}
	;
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order_ident:
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	expr { $$=$1; };
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simple_ident:
8937 8938
	ident
	{
8939
	  sp_variable_t *spv;
8940 8941
	  LEX *lex = Lex;
          sp_pcontext *spc = lex->spcont;
8942
	  if (spc && (spv = spc->find_variable(&$1)))
8943 8944 8945
	  {
            /* We're compiling a stored procedure and found a variable */
            Item_splocal *splocal;
8946 8947
            splocal= new Item_splocal($1, spv->offset, spv->type,
                                      lex->tok_start_prev - 
8948
                                      lex->sphead->m_tmp_query);
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#ifndef DBUG_OFF
8950
            if (splocal)
8951
              splocal->m_sp= lex->sphead;
8952
#endif
8953
	    $$ = (Item*) splocal;
8954 8955 8956 8957 8958 8959 8960 8961
            lex->variables_used= 1;
	    lex->safe_to_cache_query=0;
	  }
	  else
	  {
	    SELECT_LEX *sel=Select;
	    $$= (sel->parsing_place != IN_HAVING ||
	         sel->get_in_sum_expr() > 0) ?
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                 (Item*) new Item_field(Lex->current_context(), NullS, NullS, $1.str) :
	         (Item*) new Item_ref(Lex->current_context(), NullS, NullS, $1.str);
8964 8965 8966 8967 8968 8969
	  }
        }
        | simple_ident_q { $$= $1; }
	;

simple_ident_nospvar:
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	ident
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	{
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	  SELECT_LEX *sel=Select;
8973
	  $$= (sel->parsing_place != IN_HAVING ||
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	       sel->get_in_sum_expr() > 0) ?
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              (Item*) new Item_field(Lex->current_context(), NullS, NullS, $1.str) :
	      (Item*) new Item_ref(Lex->current_context(), NullS, NullS, $1.str);
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	}
8978
	| simple_ident_q { $$= $1; }
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	;
8980 8981 8982

simple_ident_q:
	ident '.' ident
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	{
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	  THD *thd= YYTHD;
8985
	  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") ||
8994 8995
               !my_strcasecmp(system_charset_info, $1.str, "OLD")))
          {
8996
            Item_trigger_field *trg_fld;
8997
            bool new_row= ($1.str[0]=='N' || $1.str[0]=='n');
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8999 9000 9001
            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");
9003 9004
              YYABORT;
            }
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9006 9007 9008
            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");
9010 9011
              YYABORT;
            }
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            if (!(trg_fld= new Item_trigger_field(Lex->current_context(),
9014
                                                  new_row ?
9015 9016
                                                  Item_trigger_field::NEW_ROW:
                                                  Item_trigger_field::OLD_ROW,
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                                                  $3.str,
                                                  Item_trigger_field::AT_READ)))
9019
              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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            $$= (Item *)trg_fld;
          }
          else
          {
	    SELECT_LEX *sel= lex->current_select;
	    if (sel->no_table_names_allowed)
	    {
9035 9036
	      my_error(ER_TABLENAME_NOT_ALLOWED_HERE,
                       MYF(0), $1.str, thd->where);
9037 9038 9039
	    }
	    $$= (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);
9042 9043
          }
        }
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	| '.' ident '.' ident
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	{
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	  THD *thd= YYTHD;
9047
	  LEX *lex= thd->lex;
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	  SELECT_LEX *sel= lex->current_select;
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	  if (sel->no_table_names_allowed)
	  {
9051 9052
	    my_error(ER_TABLENAME_NOT_ALLOWED_HERE,
                     MYF(0), $2.str, thd->where);
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	  }
9054
	  $$= (sel->parsing_place != IN_HAVING ||
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9055
	       sel->get_in_sum_expr() > 0) ?
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	      (Item*) new Item_field(Lex->current_context(), NullS, $2.str, $4.str) :
              (Item*) new Item_ref(Lex->current_context(), NullS, $2.str, $4.str);
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	}
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	| ident '.' ident '.' ident
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	{
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	  THD *thd= YYTHD;
9062
	  LEX *lex= thd->lex;
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	  SELECT_LEX *sel= lex->current_select;
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	  if (sel->no_table_names_allowed)
	  {
9066 9067
	    my_error(ER_TABLENAME_NOT_ALLOWED_HERE,
                     MYF(0), $3.str, thd->where);
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	  }
9069
	  $$= (sel->parsing_place != IN_HAVING ||
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9070
	       sel->get_in_sum_expr() > 0) ?
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	      (Item*) new Item_field(Lex->current_context(),
9072
                                     (YYTHD->client_capabilities &
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9073 9074
				      CLIENT_NO_SCHEMA ? NullS : $1.str),
				     $3.str, $5.str) :
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	      (Item*) new Item_ref(Lex->current_context(),
9076
                                   (YYTHD->client_capabilities &
9077
				    CLIENT_NO_SCHEMA ? NullS : $1.str),
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                                   $3.str, $5.str);
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9079
	};
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field_ident:
	ident			{ $$=$1;}
9084 9085 9086 9087 9088
	| ident '.' ident '.' ident
          {
            TABLE_LIST *table= (TABLE_LIST*) Select->table_list.first;
            if (my_strcasecmp(table_alias_charset, $1.str, table->db))
            {
9089
              my_error(ER_WRONG_DB_NAME, MYF(0), $1.str);
9090 9091
              YYABORT;
            }
9092 9093
            if (my_strcasecmp(table_alias_charset, $3.str,
                              table->table_name))
9094
            {
9095
              my_error(ER_WRONG_TABLE_NAME, MYF(0), $3.str);
9096 9097 9098 9099 9100 9101 9102 9103 9104
              YYABORT;
            }
            $$=$5;
          }
	| ident '.' ident
          {
            TABLE_LIST *table= (TABLE_LIST*) Select->table_list.first;
            if (my_strcasecmp(table_alias_charset, $1.str, table->alias))
            {
9105
              my_error(ER_WRONG_TABLE_NAME, MYF(0), $1.str);
9106 9107 9108 9109
              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);}
9115 9116 9117
	| '.' 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); }
9120
        ;
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9121

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IDENT_sys:
9123 9124 9125 9126 9127
	IDENT { $$= $1; }
	| IDENT_QUOTED
	  {
	    THD *thd= YYTHD;
	    if (thd->charset_is_system_charset)
9128 9129
            {
              CHARSET_INFO *cs= system_charset_info;
9130
              int dummy_error;
9131 9132
              uint wlen= cs->cset->well_formed_len(cs, $1.str,
                                                   $1.str+$1.length,
9133
                                                   $1.length, &dummy_error);
9134 9135
              if (wlen < $1.length)
              {
9136 9137
                my_error(ER_INVALID_CHARACTER_STRING, MYF(0),
                         cs->csname, $1.str + wlen);
9138 9139
                YYABORT;
              }
9140
	      $$= $1;
9141
            }
9142 9143 9144 9145
	    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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	}
	;

9160
TEXT_STRING_literal:
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9161 9162 9163
	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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9186
	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;
9198 9199
	}
	;
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9200

9201 9202 9203 9204 9205 9206 9207 9208 9209 9210
label_ident:
	IDENT_sys	    { $$=$1; }
	| keyword_sp
	{
	  THD *thd= YYTHD;
	  $$.str=    thd->strmake($1.str, $1.length);
	  $$.length= $1.length;
	}
	;

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9211
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;
9222 9223 9224 9225
	  $$->user = $1;
	  $$->host.str= (char *) "%";
	  $$->host.length= 1;
	}
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9226 9227
	| ident_or_text '@' ident_or_text
	  {
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	    THD *thd= YYTHD;
	    if (!($$=(LEX_USER*) thd->alloc(sizeof(st_lex_user))))
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9230 9231
	      YYABORT;
	    $$->user = $1; $$->host=$3;
9232
	  }
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9233
	| CURRENT_USER optional_braces
9234 9235
	{
          THD *thd= YYTHD;
9236
          Security_context *sctx= thd->security_ctx;
9237 9238
          if (!($$=(LEX_USER*) thd->alloc(sizeof(st_lex_user))))
            YYABORT;
9239 9240 9241
          $$->user.str= sctx->priv_user;
          $$->user.length= strlen(sctx->priv_user);
          if (*sctx->priv_host != 0)
9242
          {
9243 9244
            $$->host.str= sctx->priv_host;
            $$->host.length= strlen(sctx->priv_host);
9245 9246 9247 9248 9249 9250 9251
          }
          else
          {
            $$->host.str= (char *) "%";
            $$->host.length= 1;
          }
	};
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9252

9253
/* Keyword that we allow for identifiers (except SP labels) */
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9254
keyword:
9255 9256
	keyword_sp		{}
	| ASCII_SYM		{}
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	| AUTHORS_SYM		{}
9258 9259 9260 9261 9262 9263 9264 9265 9266 9267 9268 9269 9270 9271 9272 9273 9274
	| 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		{}
9275
        | INSTALL_SYM           {}
9276 9277 9278
	| LANGUAGE_SYM          {}
	| NO_SYM		{}
	| OPEN_SYM		{}
9279
        | PARSER_SYM            {}
9280
	| PARTITION_SYM		{}
9281
        | PREPARE_SYM           {}
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	| REMOVE_SYM		{}
9283 9284 9285 9286 9287 9288 9289 9290
	| REPAIR		{}
	| RESET_SYM		{}
	| RESTORE_SYM		{}
	| ROLLBACK_SYM		{}
	| SAVEPOINT_SYM		{}
	| SECURITY_SYM		{}
	| SIGNED_SYM		{}
	| SLAVE			{}
9291
        | SONAME_SYM            {}
9292 9293 9294 9295
	| START_SYM		{}
	| STOP_SYM		{}
	| TRUNCATE_SYM		{}
	| UNICODE_SYM		{}
9296
        | UNINSTALL_SYM         {}
9297 9298 9299 9300 9301
        | XA_SYM                {}
	;

/*
 * Keywords that we allow for labels in SPs.
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9302 9303 9304
 * Anything that's the beginning of a statement or characteristics
 * must be in keyword above, otherwise we get (harmful) shift/reduce
 * conflicts.
9305 9306
 */
keyword_sp:
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9307
	ACTION			{}
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9308
	| ADDDATE_SYM		{}
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	| AFTER_SYM		{}
9310
	| AGAINST		{}
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	| AGGREGATE_SYM		{}
9312
	| ALGORITHM_SYM		{}
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	| ANY_SYM		{}
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	| AT_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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9319
	| BERKELEY_DB_SYM	{}
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	| BINLOG_SYM		{}
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	| BIT_SYM		{}
	| BOOL_SYM		{}
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9323
	| BOOLEAN_SYM		{}
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9324
	| BTREE_SYM		{}
9325
	| CASCADED              {}
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9326
	| CHAIN_SYM		{}
9327
	| CHANGED		{}
9328
	| CIPHER_SYM		{}
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9329
	| CLIENT_SYM		{}
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9330
	| COALESCE		{}
9331
	| CODE_SYM              {}
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9332
	| COLLATION_SYM		{}
9333
        | COLUMNS               {}
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9334
	| COMMITTED_SYM		{}
9335
	| COMPACT_SYM		{}
9336
	| COMPLETION_SYM	{}
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9337
	| COMPRESSED_SYM	{}
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9338
	| CONCURRENT		{}
9339
	| CONSISTENT_SYM	{}
9340
	| CUBE_SYM		{}
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9341
	| DATA_SYM		{}
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9342
	| DATAFILE_SYM          {}
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9343 9344 9345
	| DATETIME		{}
	| DATE_SYM		{}
	| DAY_SYM		{}
9346
	| DEFINER_SYM		{}
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9347
	| DELAY_KEY_WRITE_SYM	{}
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9348 9349
	| DES_KEY_FILE		{}
	| DIRECTORY_SYM		{}
9350
	| DISABLE_SYM		{}
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9351
	| DISCARD		{}
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9352
	| DISK_SYM              {}
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9353 9354
	| DUMPFILE		{}
	| DUPLICATE_SYM		{}
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9355
	| DYNAMIC_SYM		{}
9356
	| ENDS_SYM		{}
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9357
	| ENUM			{}
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9358
	| ENGINE_SYM		{}
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9359
	| ENGINES_SYM		{}
9360
	| ERRORS		{}
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9361
	| ESCAPE_SYM		{}
9362
	| EVENT_SYM		{}
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9363
	| EVENTS_SYM		{}
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	| EVERY_SYM             {}
	| EXPANSION_SYM         {}
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9366
	| EXTENDED_SYM		{}
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9367
	| EXTENT_SIZE_SYM       {}
9368
	| FAST_SYM		{}
9369
	| FOUND_SYM		{}
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9370
	| ENABLE_SYM		{}
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9371
	| FULL			{}
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9372 9373 9374
	| FILE_SYM		{}
	| FIRST_SYM		{}
	| FIXED_SYM		{}
9375
	| FRAC_SECOND_SYM	{}
9376
	| GEOMETRY_SYM		{}
9377
	| GEOMETRYCOLLECTION	{}
9378
	| GET_FORMAT		{}
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9379
	| GRANTS		{}
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9380
	| GLOBAL_SYM		{}
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9381
	| HASH_SYM		{}
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9382 9383 9384
	| HOSTS_SYM		{}
	| HOUR_SYM		{}
	| IDENTIFIED_SYM	{}
9385
	| INVOKER_SYM		{}
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9386
	| IMPORT		{}
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9387
	| INDEXES		{}
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9388
	| INITIAL_SIZE_SYM      {}
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9389
	| ISOLATION		{}
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9390
	| ISSUER_SYM		{}
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9391
	| INNOBASE_SYM		{}
9392
	| INSERT_METHOD		{}
9393
	| KEY_BLOCK_SIZE	{}
9394
	| LAST_SYM		{}
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9395
	| LEAVES                {}
9396
	| LESS_SYM		{}
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9397
	| LEVEL_SYM		{}
9398
	| LINESTRING		{}
9399
	| LIST_SYM		{}
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9400
	| LOCAL_SYM		{}
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9401
	| LOCKS_SYM		{}
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9402
	| LOGFILE_SYM           {}
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9403 9404 9405 9406 9407 9408 9409 9410 9411
	| 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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9412
	| MASTER_SERVER_ID_SYM  {}
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9413
	| MASTER_CONNECT_RETRY_SYM	{}
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	| 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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9420 9421
	| MAX_CONNECTIONS_PER_HOUR	 {}
	| MAX_QUERIES_PER_HOUR	{}
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9422
	| MAX_SIZE_SYM          {}
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9423
	| MAX_UPDATES_PER_HOUR	{}
9424
	| MAX_USER_CONNECTIONS_SYM {}
9425
	| MAX_VALUE_SYM         {}
9426
	| MEDIUM_SYM		{}
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9427
	| MEMORY_SYM		{}
9428
	| MERGE_SYM		{}
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9429
	| MICROSECOND_SYM	{}
9430
        | MIGRATE_SYM           {}
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9431 9432 9433
	| MINUTE_SYM		{}
	| MIN_ROWS		{}
	| MODIFY_SYM		{}
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9434
	| MODE_SYM		{}
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9435
	| MONTH_SYM		{}
9436 9437 9438
	| MULTILINESTRING	{}
	| MULTIPOINT		{}
	| MULTIPOLYGON		{}
9439
        | MUTEX_SYM             {}
9440
	| NAME_SYM              {}
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9441
	| NAMES_SYM		{}
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9442 9443
	| NATIONAL_SYM		{}
	| NCHAR_SYM		{}
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9444
	| NDBCLUSTER_SYM	{}
9445
	| NEXT_SYM		{}
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9446
	| NEW_SYM		{}
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9447 9448
	| NO_WAIT_SYM           {}
	| NODEGROUP_SYM         {}
9449
	| NONE_SYM		{}
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9450
	| NVARCHAR_SYM		{}
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9451
	| OFFSET_SYM		{}
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9452
	| OLD_PASSWORD		{}
9453
	| ONE_SHOT_SYM		{}
9454
        | ONE_SYM               {}
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9455
	| PACK_KEYS_SYM		{}
9456
	| PARTIAL		{}
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9457
	| PARTITIONING_SYM	{}
9458
	| PARTITIONS_SYM	{}
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9459
	| PASSWORD		{}
9460
        | PHASE_SYM             {}
9461 9462
        | PLUGIN_SYM            {}
        | PLUGINS_SYM           {}
9463
	| POINT_SYM		{}
9464
	| POLYGON		{}
9465
        | PRESERVE_SYM          {}
9466
	| PREV_SYM		{}
9467
        | PRIVILEGES            {}
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9468 9469
	| PROCESS		{}
	| PROCESSLIST_SYM	{}
9470
	| QUARTER_SYM		{}
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9471
	| QUERY_SYM		{}
9472
	| QUICK			{}
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9473
        | REBUILD_SYM           {}
9474
        | RECOVER_SYM           {}
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9475
	| REDO_BUFFER_SIZE_SYM	{}
9476
	| REDOFILE_SYM          {}
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9477
        | REDUNDANT_SYM         {}
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9478 9479
	| RELAY_LOG_FILE_SYM	{}
	| RELAY_LOG_POS_SYM	{}
9480
	| RELAY_THREAD		{}
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9481
	| RELOAD		{}
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9482
	| REORGANIZE_SYM	{}
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9483
	| REPEATABLE_SYM	{}
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9484
	| REPLICATION		{}
9485
	| RESOURCES		{}
9486
        | RESUME_SYM            {}
9487
	| RETURNS_SYM           {}
9488
	| ROLLUP_SYM		{}
9489
	| ROUTINE_SYM		{}
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9490 9491 9492
	| ROWS_SYM		{}
	| ROW_FORMAT_SYM	{}
	| ROW_SYM		{}
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9493
	| RTREE_SYM		{}
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9494
	| SCHEDULE_SYM		{}	
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9495
	| SECOND_SYM		{}
9496
	| SERIAL_SYM		{}
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9497 9498
	| SERIALIZABLE_SYM	{}
	| SESSION_SYM		{}
9499
	| SIMPLE_SYM		{}
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	| SHARE_SYM		{}
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	| SHUTDOWN		{}
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	| SNAPSHOT_SYM		{}
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	| 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		{}
9508
	| 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		{}
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	| THAN_SYM		{}
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	| TRANSACTION_SYM	{}
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	| 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  	{}
9538
	| UNKNOWN_SYM		{}
9539
	| UNTIL_SYM		{}
9540
	| USER			{}
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	| USE_FRM		{}
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	| VARIABLES		{}
9543
	| VIEW_SYM		{}
9544
	| VALUE_SYM		{}
9545
	| WARNINGS		{}
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	| WAIT_SYM              {}
9547
	| WEEK_SYM		{}
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	| WORK_SYM		{}
9549
	| 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);
9561
	  lex->option_type=OPT_SESSION;
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	  lex->var_list.empty();
9563
          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
9586 9587 9588 9589 9590 9591 9592 9593
               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;
          }
        }
9604
	ext_option_value
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        {
          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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              if (lex->ptr - lex->tok_end > 1)
                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;
9673

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sys_option_value:
        option_type internal_variable_name equal set_expr_or_default
        {
          LEX *lex=Lex;
9678

9679
          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;
9683
            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;
9690
            }
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            if ($4)
              it= $4;
9693
            else
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            {
              /* QQ: Shouldn't this be field's default value ? */
              it= new Item_null();
            }
9698

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            if (!(trg_fld= new Item_trigger_field(Lex->current_context(),
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                                                  Item_trigger_field::NEW_ROW,
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                                                  $2.base_name.str,
                                                  Item_trigger_field::AT_UPDATE)
                                                  ) ||
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                !(sp_fld= new sp_instr_set_trigger_field(lex->sphead->
                          	                         instructions(),
                                	                 lex->spcont,
							 trg_fld,
                                        	         it, lex)))
9709
              YYABORT;
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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);
9717

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            lex->sphead->add_instr(sp_fld);
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          }
          else if ($2.var)
          { /* System variable */
            if ($1)
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              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;
9731
            sp_variable_t *spv;
9732
            sp_instr_set *sp_set;
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            Item *it;
            if ($1)
            {
              yyerror(ER(ER_SYNTAX_ERROR));
              YYABORT;
            }

9740
            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;
9756
	  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;
9772
	    lex->var_list.push_back(new set_var($3, $4.var, &$4.base_name, $6));
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	  }
9774
	| 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;
9778
	  $2= $2 ? $2: global_system_variables.character_set_client;
9779
	  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;
9789
	    if (spc && spc->find_variable(&names))
9790
              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;
	  }
9796
	| NAMES_SYM charset_name_or_default opt_collate
9797
	{
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	  LEX *lex= Lex;
9799
	  $2= $2 ? $2 : global_system_variables.character_set_client;
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	  $3= $3 ? $3 : $2;
	  if (!my_charset_same($2,$3))
9802
	  {
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	    my_error(ER_COLLATION_CHARSET_MISMATCH, MYF(0),
                     $3->name, $2->csname);
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	    YYABORT;
9806
	  }
9807
	  lex->var_list.push_back(new set_var_collation_client($3,$3,$3));
9808
	}
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	| PASSWORD equal text_or_password
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	  {
9811
	    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;
9819
	    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;
9826
	    user->host=null_lex_str;
9827
	    user->user.str=thd->security_ctx->priv_user;
9828
	    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));
	  }
9834
	;
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internal_variable_name:
	ident
	{
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	  LEX *lex= Lex;
          sp_pcontext *spc= lex->spcont;
9841
	  sp_variable_t *spv;
9842 9843

	  /* We have to lookup here since local vars can shadow sysvars */
9844
	  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;
	    $$.var= tmp;
9851
	    $$.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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	}
9875 9876
	| ident '.' ident
	  {
9877
            LEX *lex= Lex;
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            if (check_reserved_words(&$1))
            {
9880
	      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 */
9904
              $$.var= trg_new_row_fake_var;
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              $$.base_name= $3;
            }
            else
            {
              sys_var *tmp=find_sys_var($3.str, $3.length);
              if (!tmp)
                YYABORT;
              if (!tmp->is_struct())
9913
                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())
9924
	      my_error(ER_VARIABLE_IS_NOT_STRUCT, MYF(0), $3.str);
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	    $$.var= tmp;
	    $$.base_name.str=    (char*) "default";
	    $$.base_name.length= 7;
9928
	  }
9929
        ;
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isolation_types:
	READ_SYM UNCOMMITTED_SYM	{ $$= ISO_READ_UNCOMMITTED; }
	| READ_SYM COMMITTED_SYM	{ $$= ISO_READ_COMMITTED; }
	| REPEATABLE_SYM READ_SYM	{ $$= ISO_REPEATABLE_READ; }
	| SERIALIZABLE_SYM		{ $$= ISO_SERIALIZABLE; }
	;
9937

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text_or_password:
	TEXT_STRING { $$=$1.str;}
	| PASSWORD '(' TEXT_STRING ')'
	  {
9942
	    $$= $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)
	  {
9973
	    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
	{}
9980
	;
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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
9992
	{
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	  if (!Select->add_table_to_list(YYTHD, $1, $2, 0, (thr_lock_type) $3))
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	   YYABORT;
	}
9996
        ;
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lock_option:
	READ_SYM	{ $$=TL_READ_NO_INSERT; }
10000
	| WRITE_SYM     { $$=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)
	  {
10012
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "UNLOCK");
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	    YYABORT;
	  }
	  lex->sql_command= SQLCOM_UNLOCK_TABLES;
	}
	table_or_tables
	{}
10019
        ;
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10022
/*
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** Handler: direct access to ISAM functions
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*/

handler:
	HANDLER_SYM table_ident OPEN_SYM opt_table_alias
	{
10029
	  LEX *lex= Lex;
10030 10031 10032 10033 10034
	  if (lex->sphead)
	  {
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "HANDLER");
	    YYABORT;
	  }
10035
	  lex->sql_command = SQLCOM_HA_OPEN;
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	  if (!lex->current_select->add_table_to_list(lex->thd, $2, $4, 0))
10037 10038
	    YYABORT;
	}
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	| HANDLER_SYM table_ident_nodb CLOSE_SYM
10040
	{
10041
	  LEX *lex= Lex;
10042 10043 10044 10045 10046
	  if (lex->sphead)
	  {
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "HANDLER");
	    YYABORT;
	  }
10047
	  lex->sql_command = SQLCOM_HA_CLOSE;
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	  if (!lex->current_select->add_table_to_list(lex->thd, $2, 0, 0))
10049 10050
	    YYABORT;
	}
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	| HANDLER_SYM table_ident_nodb READ_SYM
10052
	{
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	  LEX *lex=Lex;
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	  if (lex->sphead)
	  {
	    my_error(ER_SP_BADSTATEMENT, MYF(0), "HANDLER");
	    YYABORT;
	  }
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	  lex->sql_command = SQLCOM_HA_READ;
	  lex->ha_rkey_mode= HA_READ_KEY_EXACT;	/* Avoid purify warnings */
10061
	  lex->current_select->select_limit= new Item_int((int32) 1);
10062
	  lex->current_select->offset_limit= 0;
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	  if (!lex->current_select->add_table_to_list(lex->thd, $2, 0, 0))
10064
	    YYABORT;
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        }
10066
        handler_read_or_scan where_clause opt_limit_clause {}
10067
        ;
10068

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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; }
10072
        ;
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handler_scan_function:
	FIRST_SYM  { Lex->ha_read_mode = RFIRST; }
10076 10077
	| 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;  }
10084 10085
	| 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))
10090
	    YYABORT;
10091 10092
	} '(' values ')' { }
        ;
10093 10094

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;   }
10099 10100
	| LT     { $$=HA_READ_BEFORE_KEY;  }
        ;
10101

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/* GRANT / REVOKE */

revoke:
10105
	REVOKE clear_privileges revoke_command
10106 10107 10108 10109
	{}
        ;

revoke_command:
10110
	grant_privileges ON opt_table grant_ident FROM grant_list
10111
	{
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          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;
10140
        }
10141
	|
10142
	ALL opt_privileges ',' GRANT OPTION FROM grant_list
10143 10144 10145
	{
	  Lex->sql_command = SQLCOM_REVOKE_ALL;
	}
10146
	;
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grant:
10149 10150 10151 10152 10153 10154
	GRANT clear_privileges grant_command
	{}
        ;

grant_command:
	grant_privileges ON opt_table grant_ident TO_SYM grant_list
10155
	require_clause grant_options
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	{
          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:
10194 10195 10196 10197 10198 10199
	object_privilege_list { }
	| ALL opt_privileges
        { 
          Lex->all_privileges= 1; 
          Lex->grant= GLOBAL_ACLS;
        }
10200
        ;
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10201

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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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10211
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; }
10236 10237
	| CREATE ROUTINE_SYM { Lex->grant |= CREATE_PROC_ACL; }
	| ALTER ROUTINE_SYM { Lex->grant |= ALTER_PROC_ACL; }
10238
	| CREATE USER { Lex->grant |= CREATE_USER_ACL; }
10239
        | EVENT_SYM { Lex->grant |= EVENT_ACL;}
10240
        | TRIGGER_SYM { Lex->grant |= TRIGGER_ACL; }
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	;
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10242

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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;
	}
	;
10286

10287
grant_ident:
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	'*'
	  {
10290
	    LEX *lex= Lex;
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	    lex->current_select->db= lex->thd->db;
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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));
10298
	      YYABORT;
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	    }
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	  }
	| ident '.' '*'
	  {
10303
	    LEX *lex= Lex;
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	    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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10308
	    {
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	      my_message(ER_ILLEGAL_GRANT_FOR_TABLE,
                         ER(ER_ILLEGAL_GRANT_FOR_TABLE), MYF(0));
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	      YYABORT;
	    }
	  }
	| '*' '.' '*'
	  {
10316
	    LEX *lex= Lex;
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	    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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10321
	    {
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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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10329
	    LEX *lex=Lex;
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	    if (!lex->current_select->add_table_to_list(lex->thd, $1,NULL,0))
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10331
	      YYABORT;
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	    if (lex->grant == GLOBAL_ACLS)
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	      lex->grant =  TABLE_ACLS & ~GRANT_ACL;
10334 10335
	  }
          ;
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user_list:
10339 10340 10341 10342 10343 10344 10345 10346 10347 10348
	user  { if (Lex->users_list.push_back($1)) YYABORT;}
	| user_list ',' user
	  {
	    if (Lex->users_list.push_back($3))
	      YYABORT;
	  }
	;


grant_list:
10349
	grant_user  { if (Lex->users_list.push_back($1)) YYABORT;}
10350
	| grant_list ',' grant_user
10351 10352 10353 10354 10355
	  {
	    if (Lex->users_list.push_back($3))
	      YYABORT;
	  }
	;
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grant_user:
	user IDENTIFIED_SYM BY TEXT_STRING
	{
	   $$=$1; $1->password=$4;
	   if ($4.length)
	   {
10364
             if (YYTHD->variables.old_passwords)
10365 10366 10367 10368 10369 10370 10371 10372 10373 10374 10375 10376 10377 10378 10379 10380 10381
             {
               char *buff= 
                 (char *) YYTHD->alloc(SCRAMBLED_PASSWORD_CHAR_LENGTH_323+1);
               if (buff)
                 make_scrambled_password_323(buff, $4.str);
               $1->password.str= buff;
               $1->password.length= SCRAMBLED_PASSWORD_CHAR_LENGTH_323;
             }
             else
             {
               char *buff= 
                 (char *) YYTHD->alloc(SCRAMBLED_PASSWORD_CHAR_LENGTH+1);
               if (buff)
                 make_scrambled_password(buff, $4.str);
               $1->password.str= buff;
               $1->password.length= SCRAMBLED_PASSWORD_CHAR_LENGTH;
             }
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	  }
	}
	| user IDENTIFIED_SYM BY PASSWORD TEXT_STRING
10385
	  { $$= $1; $1->password= $5; }
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10386
	| user
10387
	  { $$= $1; $1->password= null_lex_str; }
10388
        ;
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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++))
	  {
10412 10413
	    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));
10421 10422
	}
        ;
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require_clause: /* empty */
10426
        | REQUIRE_SYM require_list
10427 10428 10429
          {
            Lex->ssl_type=SSL_TYPE_SPECIFIED;
          }
10430
        | REQUIRE_SYM SSL_SYM
10431 10432 10433
          {
            Lex->ssl_type=SSL_TYPE_ANY;
          }
10434
        | REQUIRE_SYM X509_SYM
10435 10436 10437 10438 10439 10440 10441
          {
            Lex->ssl_type=SSL_TYPE_X509;
          }
	| REQUIRE_SYM NONE_SYM
	  {
	    Lex->ssl_type=SSL_TYPE_NONE;
	  }
10442
          ;
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10443

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10444
grant_options:
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	/* empty */ {}
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	| WITH grant_option_list;
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10447

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grant_option_list:
	grant_option_list grant_option {}
10450 10451
	| 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;
10460
	}
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10461
        | MAX_UPDATES_PER_HOUR ulong_num
10462
        {
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	  LEX *lex=Lex;
	  lex->mqh.updates=$2;
	  lex->mqh.specified_limits|= USER_RESOURCES::UPDATES_PER_HOUR;
10466
	}
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10467
        | MAX_CONNECTIONS_PER_HOUR ulong_num
10468
        {
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	  LEX *lex=Lex;
	  lex->mqh.conn_per_hour= $2;
	  lex->mqh.specified_limits|= USER_RESOURCES::CONNECTIONS_PER_HOUR;
10472
	}
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10473
        | MAX_USER_CONNECTIONS_SYM ulong_num
10474
        {
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	  LEX *lex=Lex;
          lex->mqh.user_conn= $2;
          lex->mqh.specified_limits|= USER_RESOURCES::USER_CONNECTIONS;
10478 10479
	}
        ;
10480

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begin:
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10482 10483 10484 10485 10486 10487 10488
	BEGIN_SYM  
        {
	  LEX *lex=Lex;
          lex->sql_command = SQLCOM_BEGIN;
          lex->start_transaction_opt= 0;
        }
        opt_work {}
10489
	;
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opt_work:
	/* empty */ {}
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	| WORK_SYM  {}
10494
        ;
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10495

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opt_chain:
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10497
	/* 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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10503
	/* 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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10514
	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
10525
	{
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	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_ROLLBACK;
	  lex->tx_chain= $3; 
	  lex->tx_release= $4;
10530
	}
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10531 10532
	| ROLLBACK_SYM opt_work
	  TO_SYM opt_savepoint ident
10533
	{
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	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_ROLLBACK_TO_SAVEPOINT;
	  lex->ident= $5;
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	}
	;

10540 10541 10542
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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	  LEX *lex=Lex;
	  lex->sql_command= SQLCOM_RELEASE_SAVEPOINT;
	  lex->ident= $3;
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	}
	;
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10557
  
10558
/*
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   UNIONS : glue selects together
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*/


10563
union_clause:
10564
	/* empty */ {}
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	| union_list
	;
10567 10568

union_list:
10569
	UNION_SYM union_option
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	{
	  LEX *lex=Lex;
	  if (lex->exchange)
	  {
	    /* Only the last SELECT can have  INTO...... */
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	    my_error(ER_WRONG_USAGE, MYF(0), "UNION", "INTO");
10576
	    YYABORT;
10577
	  }
10578
	  if (lex->current_select->linkage == GLOBAL_OPTIONS_TYPE)
10579
	  {
10580
            yyerror(ER(ER_SYNTAX_ERROR));
10581 10582
	    YYABORT;
	  }
10583
	  if (mysql_new_select(lex, 0))
10584
	    YYABORT;
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          mysql_init_select(lex);
10586
	  lex->current_select->linkage=UNION_TYPE;
10587 10588 10589
          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
        {
10593 10594 10595 10596
          /*
	    Remove from the name resolution context stack the context of the
            last select in the union.
	  */
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          Lex->pop_context();
        }
10599
	;
10600 10601

union_opt:
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	/* Empty */ { $$= 0; }
	| union_list { $$= 1; }
	| union_order_or_limit { $$= 1; }
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	;
10606

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union_order_or_limit:
10608
	  {
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	    THD *thd= YYTHD;
10610
	    LEX *lex= thd->lex;
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	    DBUG_ASSERT(lex->current_select->linkage != GLOBAL_OPTIONS_TYPE);
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	    SELECT_LEX *sel= lex->current_select;
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	    SELECT_LEX_UNIT *unit= sel->master_unit();
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	    SELECT_LEX *fake= unit->fake_select_lex;
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	    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";
10622
	  }
10623
	order_or_limit
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          {
	    THD *thd= YYTHD;
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	    thd->lex->current_select->no_table_names_allowed= 0;
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	    thd->where= "";
          }
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	;

order_or_limit:
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	order_clause opt_limit_clause_init
	| limit_clause
10634
	;
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union_option:
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	/* empty */ { $$=1; }
	| DISTINCT  { $$=1; }
	| ALL       { $$=0; }
        ;
10641

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singlerow_subselect:
	subselect_start singlerow_subselect_init
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	subselect_end
	{
	  $$= $2;
	};
10648

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singlerow_subselect_init:
10650
	select_init2
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	{
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	  $$= new Item_singlerow_subselect(Lex->current_select->
					   master_unit()->first_select());
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	};
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exists_subselect:
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	subselect_start exists_subselect_init
	subselect_end
	{
	  $$= $2;
	};
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exists_subselect_init:
10664
	select_init2
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	{
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	  $$= new Item_exists_subselect(Lex->current_select->master_unit()->
					first_select());
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	};
10669

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in_subselect:
  subselect_start in_subselect_init
  subselect_end
  {
    $$= $2;
  };

in_subselect_init:
10678
  select_init2
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  {
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    $$= Lex->current_select->master_unit()->first_select();
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  };

10683
subselect_start:
10684
	'(' SELECT_SYM
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	{
10686
	  LEX *lex=Lex;
10687 10688
          if (lex->sql_command == (int)SQLCOM_HA_READ ||
              lex->sql_command == (int)SQLCOM_KILL)
10689 10690
	  {
            yyerror(ER(ER_SYNTAX_ERROR));
10691 10692
	    YYABORT;
	  }
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10693 10694 10695
	  if (mysql_new_select(Lex, 1))
	    YYABORT;
	};
10696 10697

subselect_end:
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	')'
	{
	  LEX *lex=Lex;
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10701
          lex->pop_context();
10702
	  lex->current_select = lex->current_select->return_after_parsing();
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10703
          lex->nest_level--;
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	};
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10705

10706 10707 10708 10709 10710 10711 10712 10713 10714 10715 10716 10717 10718 10719 10720 10721 10722 10723 10724 10725 10726 10727 10728 10729 10730 10731 10732 10733
/**************************************************************************

 CREATE VIEW | TRIGGER | PROCEDURE statements.

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

view_or_trigger_or_sp:
	definer view_or_trigger_or_sp_tail
	{}
	| view_replace_or_algorithm definer view_tail
	{}
	;

view_or_trigger_or_sp_tail:
	view_tail
	{}
	| trigger_tail
	{}
	| sp_tail
	{}
	;

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

 DEFINER clause support.

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

10734
definer:
10735
	/* empty */
10736
	{
10737 10738 10739 10740 10741 10742 10743 10744
          /*
            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;
10745
	}
10746
	| DEFINER_SYM EQ CURRENT_USER optional_braces
10747
	{
10748 10749
          if (! (YYTHD->lex->definer= create_default_definer(YYTHD)))
            YYABORT;
10750 10751 10752
	}
	| DEFINER_SYM EQ ident_or_text '@' ident_or_text
	{
10753 10754
          if (!(YYTHD->lex->definer= create_definer(YYTHD, &$3, &$5)))
            YYABORT;
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	}
	;

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

10760
 CREATE VIEW statement parts.
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**************************************************************************/

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 */
	{ Lex->create_view_suid= TRUE; }
	| SQL_SYM SECURITY_SYM DEFINER_SYM
	{ Lex->create_view_suid= TRUE; }
	| SQL_SYM SECURITY_SYM INVOKER_SYM
	{ Lex->create_view_suid= FALSE; }
	;

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 */
10810
	  if (!lex->select_lex.add_table_to_list(thd, $3, NULL, TL_OPTION_UPDATING))
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	    YYABORT;
	}
	view_list_opt AS view_select view_check_option
	{}
	;

view_list_opt:
	/* empty */
	{}
10820 10821 10822 10823 10824 10825 10826 10827 10828 10829 10830 10831 10832 10833 10834 10835
	| '(' 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)));
	  }
	;

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view_select:
	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;
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	}
	| '(' remember_name select_paren ')' union_opt
	{
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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;
10854
	}
10855 10856
	;

10857
view_check_option:
10858
	/* empty */
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	{ 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; }
10866
	;
10867

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

 CREATE TRIGGER statement parts.

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

trigger_tail:
10875
	TRIGGER_SYM remember_name sp_name trg_action_time trg_event
10876
	ON remember_name table_ident FOR_SYM remember_name EACH_SYM ROW_SYM
10877 10878 10879
	{
	  LEX *lex= Lex;
	  sp_head *sp;
10880

10881
	  if (lex->sphead)
10882
	  {
10883 10884
	    my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), "TRIGGER");
	    YYABORT;
10885
	  }
10886

10887 10888 10889 10890
	  if (!(sp= new sp_head()))
	    YYABORT;
	  sp->reset_thd_mem_root(YYTHD);
	  sp->init(lex);
10891

10892
	  lex->stmt_definition_begin= $2;
10893
          lex->ident.str= $7;
10894
          lex->ident.length= $10 - $7;
10895

10896 10897 10898 10899 10900 10901 10902 10903
	  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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10904
	  $<ulong_num>$= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
10905
	  YYTHD->client_capabilities &= ~CLIENT_MULTI_QUERIES;
10906

10907 10908 10909
	  bzero((char *)&lex->sp_chistics, sizeof(st_sp_chistics));
	  lex->sphead->m_chistics= &lex->sp_chistics;
	  lex->sphead->m_body_begin= lex->ptr;
10910 10911
          while (my_isspace(system_charset_info, lex->sphead->m_body_begin[0]))
            ++lex->sphead->m_body_begin;
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	}
	sp_proc_stmt
	{
	  LEX *lex= Lex;
	  sp_head *sp= lex->sphead;
10917

10918 10919 10920
	  lex->sql_command= SQLCOM_CREATE_TRIGGER;
	  sp->init_strings(YYTHD, lex, $3);
	  /* Restore flag if it was cleared above */
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10921

10922
	  YYTHD->client_capabilities |= $<ulong_num>13;
10923
	  sp->restore_thd_mem_root(YYTHD);
10924

10925 10926
	  if (sp->is_not_allowed_in_function("trigger"))
	      YYABORT;
10927

10928 10929 10930 10931 10932
	  /*
	    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.
	  */
10933
	  if (!lex->select_lex.add_table_to_list(YYTHD, $8,
10934 10935
	                                         (LEX_STRING*) 0,
	                                         TL_OPTION_UPDATING,
10936
                                                 TL_IGNORE))
10937 10938
	    YYABORT;
	}
10939 10940
	;

10941 10942 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 10971 10972 10973 10974 10975 10976 10977 10978 10979 10980 10981
/**************************************************************************

 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;
	  }
	  
	  lex->stmt_definition_begin= $2;
	  
	  /* Order is important here: new - reset - init */
	  sp= new sp_head();
	  sp->reset_thd_mem_root(YYTHD);
	  sp->init(lex);

	  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 ';'.
	   */
10982
          $<ulong_num>$= YYTHD->client_capabilities & CLIENT_MULTI_QUERIES;
10983 10984 10985 10986 10987 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
	  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;

	  sp->init_strings(YYTHD, lex, $3);
	  lex->sql_command= SQLCOM_CREATE_PROCEDURE;
11013 11014 11015 11016 11017 11018
          /*
            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;
11019 11020 11021 11022
	  sp->restore_thd_mem_root(YYTHD);
	}
	;

11023
/*************************************************************************/
11024

11025 11026
xa: XA_SYM begin_or_start xid opt_join_or_resume
      {
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11027
        Lex->sql_command = SQLCOM_XA_START;
11028
      }
11029
    | XA_SYM END xid opt_suspend
11030
      {
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11031
        Lex->sql_command = SQLCOM_XA_END;
11032 11033 11034
      }
    | XA_SYM PREPARE_SYM xid
      {
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11035
        Lex->sql_command = SQLCOM_XA_PREPARE;
11036 11037 11038
      }
    | XA_SYM COMMIT_SYM xid opt_one_phase
      {
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11039
        Lex->sql_command = SQLCOM_XA_COMMIT;
11040 11041 11042
      }
    | XA_SYM ROLLBACK_SYM xid
      {
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11043
        Lex->sql_command = SQLCOM_XA_ROLLBACK;
11044 11045 11046
      }
    | XA_SYM RECOVER_SYM
      {
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        Lex->sql_command = SQLCOM_XA_RECOVER;
11048 11049 11050
      }
    ;

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xid: text_string
     {
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11053
       YYERROR_UNLESS($1->length() <= MAXGTRIDSIZE);
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       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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11060
       YYERROR_UNLESS($1->length() <= MAXGTRIDSIZE && $3->length() <= MAXBQUALSIZE);
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       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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11067
       YYERROR_UNLESS($1->length() <= MAXGTRIDSIZE && $3->length() <= MAXBQUALSIZE);
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       if (!(Lex->xid=(XID *)YYTHD->alloc(sizeof(XID))))
         YYABORT;
       Lex->xid->set($5, $1->ptr(), $1->length(), $3->ptr(), $3->length());
     }
     ;
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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;   }
    ;

11089
opt_suspend:
11090 11091
    /* nothing */           { Lex->xa_opt=XA_NONE;        }
    | SUSPEND_SYM           { Lex->xa_opt=XA_SUSPEND;     }
11092 11093 11094 11095 11096
      opt_migrate
    ;

opt_migrate:
    /* nothing */           { }
11097 11098 11099
    | FOR_SYM MIGRATE_SYM   { Lex->xa_opt=XA_FOR_MIGRATE; }
    ;

11100
install:
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11101
  INSTALL_SYM PLUGIN_SYM ident SONAME_SYM TEXT_STRING_sys
11102 11103 11104 11105 11106 11107
  {
    LEX *lex= Lex;
    lex->sql_command= SQLCOM_INSTALL_PLUGIN;
    lex->comment= $3;
    lex->ident= $5;
  };
11108

11109
uninstall:
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11110
  UNINSTALL_SYM PLUGIN_SYM ident
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  {
    LEX *lex= Lex;
    lex->sql_command= SQLCOM_UNINSTALL_PLUGIN;
    lex->comment= $3;
  };