mysql_priv.h 68.9 KB
Newer Older
unknown's avatar
unknown committed
1
/* Copyright (C) 2000-2003 MySQL AB
2

unknown's avatar
unknown committed
3 4 5 6
   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.
7

unknown's avatar
unknown committed
8 9 10 11
   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.
12

unknown's avatar
unknown committed
13 14 15 16
   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 */

17 18 19 20 21 22 23 24 25
/*
  Mostly this file is used in the server. But a little part of it is used in
  mysqlbinlog too (definition of SELECT_DISTINCT and others).
  The consequence is that 90% of the file is wrapped in #ifndef MYSQL_CLIENT,
  except the part which must be in the server and in the client.
*/

#ifndef MYSQL_CLIENT

unknown's avatar
unknown committed
26
#include <my_global.h>
unknown's avatar
unknown committed
27 28
#include <mysql_version.h>
#include <mysql_embed.h>
unknown's avatar
unknown committed
29
#include <my_sys.h>
30
#include <my_time.h>
unknown's avatar
unknown committed
31 32 33 34 35
#include <m_string.h>
#include <hash.h>
#include <signal.h>
#include <thr_lock.h>
#include <my_base.h>			/* Needed by field.h */
36
#include "sql_bitmap.h"
37
#include "sql_array.h"
unknown's avatar
unknown committed
38

unknown's avatar
unknown committed
39
#ifdef __EMX__
unknown's avatar
unknown committed
40
#undef write  /* remove pthread.h macro definition for EMX */
unknown's avatar
unknown committed
41
#endif
42

43 44
/* TODO convert all these three maps to Bitmap classes */
typedef ulonglong table_map;          /* Used for table bits in join */
45 46 47 48 49
#if MAX_INDEXES <= 64
typedef Bitmap<64>  key_map;          /* Used for finding keys */
#else
typedef Bitmap<((MAX_INDEXES+7)/8*8)> key_map; /* Used for finding keys */
#endif
50
typedef ulong key_part_map;           /* Used for finding key parts */
unknown's avatar
unknown committed
51
typedef ulong nesting_map;  /* Used for flags of nesting constructs */
52
/*
53 54 55
  Used to identify NESTED_JOIN structures within a join (applicable only to
  structures that have not been simplified away and embed more the one
  element)
56 57
*/
typedef ulonglong nested_join_map;
58

59 60 61 62 63 64 65
/* query_id */
typedef ulonglong query_id_t;
extern query_id_t query_id;

/* increment query_id and return it.  */
inline query_id_t next_query_id() { return query_id++; }

66 67
/* useful constants */
extern const key_map key_map_empty;
68
extern key_map key_map_full;          /* Should be threaded as const */
69
extern const char *primary_key_name;
unknown's avatar
unknown committed
70 71

#include "mysql_com.h"
unknown's avatar
unknown committed
72
#include <violite.h>
unknown's avatar
unknown committed
73 74
#include "unireg.h"

75
void init_sql_alloc(MEM_ROOT *root, uint block_size, uint pre_alloc_size);
unknown's avatar
unknown committed
76 77 78 79 80 81
gptr sql_alloc(unsigned size);
gptr sql_calloc(unsigned size);
char *sql_strdup(const char *str);
char *sql_strmake(const char *str,uint len);
gptr sql_memdup(const void * ptr,unsigned size);
void sql_element_free(void *ptr);
unknown's avatar
unknown committed
82 83 84 85
char *sql_strmake_with_convert(const char *str, uint32 arg_length,
			       CHARSET_INFO *from_cs,
			       uint32 max_res_length,
			       CHARSET_INFO *to_cs, uint32 *result_length);
86
void kill_one_thread(THD *thd, ulong id, bool only_kill_query);
87
bool net_request_file(NET* net, const char* fname);
unknown's avatar
unknown committed
88
char* query_table_status(THD *thd,const char *db,const char *table_name);
unknown's avatar
unknown committed
89 90 91 92 93 94

#define x_free(A)	{ my_free((gptr) (A),MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); }
#define safeFree(x)	{ if(x) { my_free((gptr) x,MYF(0)); x = NULL; } }
#define PREV_BITS(type,A)	((type) (((type) 1 << (A)) -1))
#define all_bits_set(A,B) ((A) & (B) != (B))

95 96 97 98 99 100 101 102 103
#define WARN_DEPRECATED(Thd,Ver,Old,New)                                  \
  do {                                                                    \
    DBUG_ASSERT(strncmp(Ver, MYSQL_SERVER_VERSION, sizeof(Ver)-1) >= 0);  \
    push_warning_printf(((THD *)Thd), MYSQL_ERROR::WARN_LEVEL_WARN,       \
                        ER_WARN_DEPRECATED, ER(ER_WARN_DEPRECATED),       \
                        (Old), (Ver), (New));                             \
  } while(0)


104 105
extern CHARSET_INFO *system_charset_info, *files_charset_info ;
extern CHARSET_INFO *national_charset_info, *table_alias_charset;
106

unknown's avatar
unknown committed
107
/***************************************************************************
108
  Configuration parameters
unknown's avatar
unknown committed
109 110 111
****************************************************************************/

#define ACL_CACHE_SIZE		256
112
#define MAX_PASSWORD_LENGTH	32
unknown's avatar
unknown committed
113 114 115 116 117
#define HOST_CACHE_SIZE		128
#define MAX_ACCEPT_RETRY	10	// Test accept this many times
#define MAX_FIELDS_BEFORE_HASH	32
#define USER_VARS_HASH_SIZE     16
#define STACK_MIN_SIZE		8192	// Abort if less stack during eval.
118
#define STACK_MIN_SIZE_FOR_OPEN 1024*80
unknown's avatar
unknown committed
119
#define STACK_BUFF_ALLOC	256	// For stack overrun checks
unknown's avatar
unknown committed
120 121 122
#ifndef MYSQLD_NET_RETRY_COUNT
#define MYSQLD_NET_RETRY_COUNT  10	// Abort read after this many int.
#endif
123
#define TEMP_POOL_SIZE          128
124 125 126 127 128 129 130 131 132

#define QUERY_ALLOC_BLOCK_SIZE		8192
#define QUERY_ALLOC_PREALLOC_SIZE   	8192
#define TRANS_ALLOC_BLOCK_SIZE		4096
#define TRANS_ALLOC_PREALLOC_SIZE	4096
#define RANGE_ALLOC_BLOCK_SIZE		2048
#define ACL_ALLOC_BLOCK_SIZE		1024
#define UDF_ALLOC_BLOCK_SIZE		1024
#define TABLE_ALLOC_BLOCK_SIZE		1024
unknown's avatar
unknown committed
133 134 135
#define BDB_LOG_ALLOC_BLOCK_SIZE	1024
#define WARN_ALLOC_BLOCK_SIZE		2048
#define WARN_ALLOC_PREALLOC_SIZE	1024
136

137 138
/*
  The following parameters is to decide when to use an extra cache to
unknown's avatar
unknown committed
139
  optimise seeks when reading a big table in sorted order
140
*/
141
#define MIN_FILE_LENGTH_TO_USE_ROW_CACHE (10L*1024*1024)
unknown's avatar
unknown committed
142
#define MIN_ROWS_TO_USE_TABLE_CACHE	 100
143
#define MIN_ROWS_TO_USE_BULK_INSERT	 100
unknown's avatar
unknown committed
144

145 146 147 148 149
/*
  The following is used to decide if MySQL should use table scanning
  instead of reading with keys.  The number says how many evaluation of the
  WHERE clause is comparable to reading one extra row from a table.
*/
150
#define TIME_FOR_COMPARE   5	// 5 compares == one read
151

152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171
/*
  Number of comparisons of table rowids equivalent to reading one row from a 
  table.
*/
#define TIME_FOR_COMPARE_ROWID  (TIME_FOR_COMPARE*2)

/*
  For sequential disk seeks the cost formula is:
    DISK_SEEK_BASE_COST + DISK_SEEK_PROP_COST * #blocks_to_skip  
  
  The cost of average seek 
    DISK_SEEK_BASE_COST + DISK_SEEK_PROP_COST*BLOCKS_IN_AVG_SEEK =1.0.
*/
#define DISK_SEEK_BASE_COST ((double)0.5)

#define BLOCKS_IN_AVG_SEEK  128

#define DISK_SEEK_PROP_COST ((double)0.5/BLOCKS_IN_AVG_SEEK)


172 173 174 175 176
/*
  Number of rows in a reference table when refereed through a not unique key.
  This value is only used when we don't know anything about the key
  distribution.
*/
177
#define MATCHING_ROWS_IN_OTHER_TABLE 10
unknown's avatar
unknown committed
178 179 180 181 182 183 184 185 186 187

/* Don't pack string keys shorter than this (if PACK_KEYS=1 isn't used) */
#define KEY_DEFAULT_PACK_LENGTH 8

/* Characters shown for the command in 'show processlist' */
#define PROCESS_LIST_WIDTH 100

/* Time handling defaults */
#define TIMESTAMP_MAX_YEAR 2038
#define YY_PART_YEAR	   70
188 189 190
#define TIMESTAMP_MIN_YEAR (1900 + YY_PART_YEAR - 1)
#define TIMESTAMP_MAX_VALUE 2145916799
#define TIMESTAMP_MIN_VALUE 1
unknown's avatar
unknown committed
191 192 193 194 195 196 197 198 199 200 201 202
#define PRECISION_FOR_DOUBLE 53
#define PRECISION_FOR_FLOAT  24

/* The following can also be changed from the command line */
#define CONNECT_TIMEOUT		5		// Do not wait long for connect
#define DEFAULT_CONCURRENCY	10
#define DELAYED_LIMIT		100		/* pause after xxx inserts */
#define DELAYED_QUEUE_SIZE	1000
#define DELAYED_WAIT_TIMEOUT	5*60		/* Wait for delayed insert */
#define FLUSH_TIME		0		/* Don't flush tables */
#define MAX_CONNECT_ERRORS	10		// errors before disabling host

unknown's avatar
unknown committed
203 204 205 206 207
#ifdef __NETWARE__
#define IF_NETWARE(A,B) (A)
#else
#define IF_NETWARE(A,B) (B)
#endif
208

unknown's avatar
unknown committed
209
#if defined(__WIN__) || defined(OS2)
unknown's avatar
unknown committed
210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225
#define IF_WIN(A,B) (A)
#undef	FLUSH_TIME
#define FLUSH_TIME	1800			/* Flush every half hour */

#define INTERRUPT_PRIOR -2
#define CONNECT_PRIOR	-1
#define WAIT_PRIOR	0
#define QUERY_PRIOR	2
#else
#define IF_WIN(A,B) (B)
#define INTERRUPT_PRIOR 10
#define CONNECT_PRIOR	9
#define WAIT_PRIOR	8
#define QUERY_PRIOR	6
#endif /* __WIN92__ */

unknown's avatar
unknown committed
226
	/* Bits from testflag */
unknown's avatar
unknown committed
227 228 229 230 231 232 233 234
#define TEST_PRINT_CACHED_TABLES 1
#define TEST_NO_KEY_GROUP	 2
#define TEST_MIT_THREAD		4
#define TEST_BLOCKING		8
#define TEST_KEEP_TMP_TABLES	16
#define TEST_NO_THREADS		32	/* For debugging under Linux */
#define TEST_READCHECK		64	/* Force use of readcheck */
#define TEST_NO_EXTRA		128
235
#define TEST_CORE_ON_SIGNAL	256	/* Give core if signal */
unknown's avatar
unknown committed
236
#define TEST_NO_STACKTRACE	512
237
#define TEST_SIGINT		1024	/* Allow sigint on threads */
unknown's avatar
unknown committed
238 239
#define TEST_SYNCHRONIZATION    2048    /* get server to do sleep in
                                           some places */
240 241
#endif

unknown's avatar
unknown committed
242
/*
243 244
   This is included in the server and in the client.
   Options for select set by the yacc parser (stored in lex->options).
unknown's avatar
unknown committed
245 246 247 248 249 250 251 252 253 254 255 256 257

   XXX:
   log_event.h defines OPTIONS_WRITTEN_TO_BIN_LOG to specify what THD
   options list are written into binlog. These options can NOT change their
   values, or it will break replication between version.

   context is encoded as following:
   SELECT - SELECT_LEX_NODE::options
   THD    - THD::options
   intern - neither. used only as
            func(..., select_node->options | thd->options | OPTION_XXX, ...)

   TODO: separate three contexts above, move them to separate bitfields.
258 259
*/

260 261 262 263 264 265 266 267 268 269 270
#define SELECT_DISTINCT         (LL(1) << 0)       // SELECT, user
#define SELECT_STRAIGHT_JOIN    (LL(1) << 1)       // SELECT, user
#define SELECT_DESCRIBE         (LL(1) << 2)       // SELECT, user
#define SELECT_SMALL_RESULT     (LL(1) << 3)       // SELECT, user
#define SELECT_BIG_RESULT       (LL(1) << 4)       // SELECT, user
#define OPTION_FOUND_ROWS       (LL(1) << 5)       // SELECT, user
#define OPTION_TO_QUERY_CACHE   (LL(1) << 6)       // SELECT, user
#define SELECT_NO_JOIN_CACHE    (LL(1) << 7)       // intern
#define OPTION_BIG_TABLES       (LL(1) << 8)       // THD, user
#define OPTION_BIG_SELECTS      (LL(1) << 9)       // THD, user
#define OPTION_LOG_OFF          (LL(1) << 10)      // THD, user
271
#define OPTION_QUOTE_SHOW_CREATE (LL(1) << 11)     // THD, user
272 273 274 275 276 277 278 279 280 281 282
#define TMP_TABLE_ALL_COLUMNS   (LL(1) << 12)      // SELECT, intern
#define OPTION_WARNINGS         (LL(1) << 13)      // THD, user
#define OPTION_AUTO_IS_NULL     (LL(1) << 14)      // THD, user, binlog
#define OPTION_FOUND_COMMENT    (LL(1) << 15)      // SELECT, intern, parser
#define OPTION_SAFE_UPDATES     (LL(1) << 16)      // THD, user
#define OPTION_BUFFER_RESULT    (LL(1) << 17)      // SELECT, user
#define OPTION_BIN_LOG          (LL(1) << 18)      // THD, user
#define OPTION_NOT_AUTOCOMMIT   (LL(1) << 19)      // THD, user
#define OPTION_BEGIN            (LL(1) << 20)      // THD, intern
#define OPTION_TABLE_LOCK       (LL(1) << 21)      // THD, intern
#define OPTION_QUICK            (LL(1) << 22)      // SELECT (for DELETE)
unknown's avatar
unknown committed
283 284 285

/* Thr following is used to detect a conflict with DISTINCT
   in the user query has requested */
286
#define SELECT_ALL              (LL(1) << 24)      // SELECT, user, parser
unknown's avatar
unknown committed
287

288
/* Set if we are updating a non-transaction safe table */
289
#define OPTION_STATUS_NO_TRANS_UPDATE   (LL(1) << 25) // THD, intern
290

unknown's avatar
unknown committed
291 292
/* The following can be set when importing tables in a 'wrong order'
   to suppress foreign key checks */
293
#define OPTION_NO_FOREIGN_KEY_CHECKS    (LL(1) << 26) // THD, user, binlog
unknown's avatar
unknown committed
294 295
/* The following speeds up inserts to InnoDB tables by suppressing unique
   key checks in some cases */
296 297 298
#define OPTION_RELAXED_UNIQUE_CHECKS    (LL(1) << 27) // THD, user, binlog
#define SELECT_NO_UNLOCK                (LL(1) << 28) // SELECT, intern
#define OPTION_SCHEMA_TABLE             (LL(1) << 29) // SELECT, intern
299
/* Flag set if setup_tables already done */
300
#define OPTION_SETUP_TABLES_DONE        (LL(1) << 30) // intern
unknown's avatar
unknown committed
301
/* If not set then the thread will ignore all warnings with level notes. */
302
#define OPTION_SQL_NOTES                (LL(1) << 31) // THD, user
303
/*
304 305 306 307
  Force the used temporary table to be a MyISAM table (because we will use
  fulltext functions when reading from it.
*/
#define TMP_TABLE_FORCE_MYISAM          (LL(1) << 32)
308

unknown's avatar
unknown committed
309 310
/*
  Maximum length of time zone name that we support
311 312 313 314
  (Time zone name is char(64) in db). mysqlbinlog needs it.
*/
#define MAX_TIME_ZONE_NAME_LENGTH 72

315 316 317
/* The rest of the file is included in the server only */
#ifndef MYSQL_CLIENT

318
/* Bits for different SQL modes modes (including ANSI mode) */
unknown's avatar
unknown committed
319 320 321
#define MODE_REAL_AS_FLOAT              1
#define MODE_PIPES_AS_CONCAT            2
#define MODE_ANSI_QUOTES                4
322
#define MODE_IGNORE_SPACE		8
323
#define MODE_NOT_USED			16
324 325
#define MODE_ONLY_FULL_GROUP_BY		32
#define MODE_NO_UNSIGNED_SUBTRACTION	64
326
#define MODE_NO_DIR_IN_CREATE		128
unknown's avatar
unknown committed
327 328 329 330
#define MODE_POSTGRESQL			256
#define MODE_ORACLE			512
#define MODE_MSSQL			1024
#define MODE_DB2			2048
331
#define MODE_MAXDB			4096
unknown's avatar
unknown committed
332
#define MODE_NO_KEY_OPTIONS             8192
333
#define MODE_NO_TABLE_OPTIONS           16384
unknown's avatar
unknown committed
334 335 336 337 338 339 340 341 342 343 344 345 346
#define MODE_NO_FIELD_OPTIONS           32768
#define MODE_MYSQL323                   65536
#define MODE_MYSQL40                    (MODE_MYSQL323*2)
#define MODE_ANSI	                (MODE_MYSQL40*2)
#define MODE_NO_AUTO_VALUE_ON_ZERO      (MODE_ANSI*2)
#define MODE_NO_BACKSLASH_ESCAPES       (MODE_NO_AUTO_VALUE_ON_ZERO*2)
#define MODE_STRICT_TRANS_TABLES	(MODE_NO_BACKSLASH_ESCAPES*2)
#define MODE_STRICT_ALL_TABLES		(MODE_STRICT_TRANS_TABLES*2)
#define MODE_NO_ZERO_IN_DATE		(MODE_STRICT_ALL_TABLES*2)
#define MODE_NO_ZERO_DATE		(MODE_NO_ZERO_IN_DATE*2)
#define MODE_INVALID_DATES		(MODE_NO_ZERO_DATE*2)
#define MODE_ERROR_FOR_DIVISION_BY_ZERO (MODE_INVALID_DATES*2)
#define MODE_TRADITIONAL		(MODE_ERROR_FOR_DIVISION_BY_ZERO*2)
347
#define MODE_NO_AUTO_CREATE_USER	(MODE_TRADITIONAL*2)
348
#define MODE_HIGH_NOT_PRECEDENCE	(MODE_NO_AUTO_CREATE_USER*2)
349
#define MODE_NO_ENGINE_SUBSTITUTION     (MODE_HIGH_NOT_PRECEDENCE*2)
350 351 352 353 354
/*
  Replication uses 8 bytes to store SQL_MODE in the binary log. The day you
  use strictly more than 64 bits by adding one more define above, you should
  contact the replication team because the replication code should then be
  updated (to store more bytes on disk).
355 356 357 358

  NOTE: When adding new SQL_MODE types, make sure to also add them to
  ../scripts/mysql_create_system_tables.sh and
  ../scripts/mysql_fix_privilege_tables.sql
359
*/
360

unknown's avatar
unknown committed
361 362
#define RAID_BLOCK_SIZE 1024

unknown's avatar
unknown committed
363 364
#define MY_CHARSET_BIN_MB_MAXLEN 1

365 366 367
// uncachable cause
#define UNCACHEABLE_DEPENDENT   1
#define UNCACHEABLE_RAND        2
368 369 370
#define UNCACHEABLE_SIDEEFFECT	4
// forcing to save JOIN for explain
#define UNCACHEABLE_EXPLAIN     8
371 372
/* Don't evaluate subqueries in prepare even if they're not correlated */
#define UNCACHEABLE_PREPARE    16
373

374
#ifdef EXTRA_DEBUG
375 376 377 378 379 380 381
/*
  Sync points allow us to force the server to reach a certain line of code
  and block there until the client tells the server it is ok to go on.
  The client tells the server to block with SELECT GET_LOCK()
  and unblocks it with SELECT RELEASE_LOCK(). Used for debugging difficult
  concurrency problems
*/
382 383 384 385 386
#define DBUG_SYNC_POINT(lock_name,lock_timeout) \
 debug_sync_point(lock_name,lock_timeout)
void debug_sync_point(const char* lock_name, uint lock_timeout);
#else
#define DBUG_SYNC_POINT(lock_name,lock_timeout)
387
#endif /* EXTRA_DEBUG */
388

unknown's avatar
unknown committed
389 390 391 392
/* BINLOG_DUMP options */

#define BINLOG_DUMP_NON_BLOCK   1

unknown's avatar
unknown committed
393 394 395 396
/* sql_show.cc:show_log_files() */
#define SHOW_LOG_STATUS_FREE "FREE"
#define SHOW_LOG_STATUS_INUSE "IN USE"

397 398 399 400
struct st_table_list;
class String;
void view_store_options(THD *thd, st_table_list *table, String *buff);

401 402 403
/* Options to add_table_to_list() */
#define TL_OPTION_UPDATING	1
#define TL_OPTION_FORCE_INDEX	2
unknown's avatar
unknown committed
404
#define TL_OPTION_IGNORE_LEAVES 4
405

unknown's avatar
unknown committed
406 407 408 409 410 411 412
/* Some portable defines */

#define portable_sizeof_char_ptr 8

#define tmp_file_prefix "#sql"			/* Prefix for tmp tables */
#define tmp_file_prefix_length 4

413 414 415 416 417
/* Flags for calc_week() function.  */
#define WEEK_MONDAY_FIRST    1
#define WEEK_YEAR            2
#define WEEK_FIRST_WEEKDAY   4

unknown's avatar
unknown committed
418 419
#define STRING_BUFFER_USUAL_SIZE 80

unknown's avatar
unknown committed
420 421 422 423 424 425 426
/*
  Some defines for exit codes for ::is_equal class functions.
*/
#define IS_EQUAL_NO 0
#define IS_EQUAL_YES 1
#define IS_EQUAL_PACK_LENGTH 2

427 428 429 430
enum enum_parsing_place
{
  NO_MATTER,
  IN_HAVING,
unknown's avatar
unknown committed
431 432
  SELECT_LIST,
  IN_WHERE
433 434
};

unknown's avatar
unknown committed
435 436 437 438 439 440 441 442 443
struct st_table;
class THD;

/* Struct to handle simple linked lists */

typedef struct st_sql_list {
  uint elements;
  byte *first;
  byte **next;
unknown's avatar
unknown committed
444

445
  st_sql_list() {}                              /* Remove gcc warning */
unknown's avatar
unknown committed
446 447 448 449 450 451 452 453 454 455 456 457 458
  inline void empty()
  {
    elements=0;
    first=0;
    next= &first;
  }
  inline void link_in_list(byte *element,byte **next_ptr)
  {
    elements++;
    (*next)=element;
    next= next_ptr;
    *next=0;
  }
459 460 461 462 463 464 465 466 467 468 469
  inline void save_and_clear(struct st_sql_list *save)
  {
    *save= *this;
    empty();
  }
  inline void push_front(struct st_sql_list *save)
  {
    *save->next= first;				/* link current list last */
    first= save->first;
    elements+= save->elements;
  }
470 471 472 473 474 475 476 477 478
  inline void push_back(struct st_sql_list *save)
  {
    if (save->first)
    {
      *next= save->first;
      next= save->next;
      elements+= save->elements;
    }
  }
unknown's avatar
unknown committed
479 480 481 482 483 484 485 486 487 488
} SQL_LIST;


extern pthread_key(THD*, THR_THD);
inline THD *_current_thd(void)
{
  return my_pthread_getspecific_ptr(THD*,THR_THD);
}
#define current_thd _current_thd()

489 490 491 492 493
/* below functions are required for plugins as THD class is opaque */
my_bool thd_in_lock_tables(const THD *thd);
my_bool thd_tablespace_op(const THD *thd);
const char *thd_proc_info(THD *thd, const char *info);

494 495 496 497 498
/*
  External variables
*/
extern ulong server_id, concurrency;

unknown's avatar
unknown committed
499

unknown's avatar
unknown committed
500 501 502
typedef my_bool (*qc_engine_callback)(THD *thd, char *table_key,
                                      uint key_length,
                                      ulonglong *engine_data);
unknown's avatar
unknown committed
503 504 505
#include "sql_string.h"
#include "sql_list.h"
#include "sql_map.h"
unknown's avatar
unknown committed
506
#include "my_decimal.h"
unknown's avatar
unknown committed
507
#include "handler.h"
unknown's avatar
unknown committed
508
#include "parse_file.h"
unknown's avatar
unknown committed
509
#include "table.h"
510
#include "sql_error.h"
unknown's avatar
unknown committed
511
#include "field.h"				/* Field definitions */
512
#include "protocol.h"
513
#include "sql_plugin.h"
unknown's avatar
unknown committed
514
#include "sql_udf.h"
515 516
#include "sql_partition.h"

517
class user_var_entry;
518
class Security_context;
519 520
enum enum_var_type
{
unknown's avatar
unknown committed
521
  OPT_DEFAULT= 0, OPT_SESSION, OPT_GLOBAL
522 523
};
class sys_var;
unknown's avatar
unknown committed
524
#include "item.h"
unknown's avatar
unknown committed
525
extern my_decimal decimal_zero;
526
#ifdef MYSQL_SERVER
unknown's avatar
unknown committed
527
typedef Comp_creator* (*chooser_compare_func_creator)(bool invert);
528
#endif
529 530 531
/* sql_parse.cc */
void free_items(Item *item);
void cleanup_items(Item *item);
532
class THD;
533
void close_thread_tables(THD *thd, bool locked=0, bool skip_derived=0);
534
bool check_one_table_access(THD *thd, ulong privilege, TABLE_LIST *tables);
535 536
bool check_routine_access(THD *thd,ulong want_access,char *db,char *name,
			  bool is_proc, bool no_errors);
537
bool check_some_access(THD *thd, ulong want_access, TABLE_LIST *table);
538
bool check_merge_table_access(THD *thd, char *db, TABLE_LIST *table_list);
539
bool check_some_routine_access(THD *thd, const char *db, const char *name, bool is_proc);
unknown's avatar
unknown committed
540
bool multi_update_precheck(THD *thd, TABLE_LIST *tables);
541
bool multi_delete_precheck(THD *thd, TABLE_LIST *tables);
unknown's avatar
unknown committed
542 543 544 545 546
bool mysql_multi_update_prepare(THD *thd);
bool mysql_multi_delete_prepare(THD *thd);
bool mysql_insert_select_prepare(THD *thd);
bool update_precheck(THD *thd, TABLE_LIST *tables);
bool delete_precheck(THD *thd, TABLE_LIST *tables);
unknown's avatar
merge  
unknown committed
547
bool insert_precheck(THD *thd, TABLE_LIST *tables);
unknown's avatar
unknown committed
548 549
bool create_table_precheck(THD *thd, TABLE_LIST *tables,
                           TABLE_LIST *create_table);
550

551 552
bool get_default_definer(THD *thd, LEX_USER *definer);
LEX_USER *create_definer(THD *thd, LEX_STRING *user_name, LEX_STRING *host_name);
553 554 555 556 557 558

enum enum_mysql_completiontype {
  ROLLBACK_RELEASE=-2, ROLLBACK=1,  ROLLBACK_AND_CHAIN=7,
  COMMIT_RELEASE=-1,   COMMIT=0,    COMMIT_AND_CHAIN=6
};

unknown's avatar
unknown committed
559
bool begin_trans(THD *thd);
560 561
int end_trans(THD *thd, enum enum_mysql_completiontype completion);

unknown's avatar
unknown committed
562
Item *negate_expression(THD *thd, Item *expr);
unknown's avatar
unknown committed
563
#include "sql_class.h"
564 565
#include "sql_acl.h"
#include "tztime.h"
566
#ifdef MYSQL_SERVER
unknown's avatar
unknown committed
567
#include "opt_range.h"
unknown's avatar
unknown committed
568 569

#ifdef HAVE_QUERY_CACHE
570 571 572
struct Query_cache_query_flags
{
  unsigned int client_long_flag:1;
573
  unsigned int client_protocol_41:1;
574
  unsigned int more_results_exists:1;
575
  unsigned int pkt_nr;
unknown's avatar
unknown committed
576 577 578
  uint character_set_client_num;
  uint character_set_results_num;
  uint collation_connection_num;
579
  ha_rows limit;
580
  Time_zone *time_zone;
581 582 583
  ulong sql_mode;
  ulong max_sort_length;
  ulong group_concat_max_len;
584 585
};
#define QUERY_CACHE_FLAGS_SIZE sizeof(Query_cache_query_flags)
unknown's avatar
unknown committed
586
#include "sql_cache.h"
unknown's avatar
unknown committed
587 588 589
#define query_cache_store_query(A, B) query_cache.store_query(A, B)
#define query_cache_destroy() query_cache.destroy()
#define query_cache_result_size_limit(A) query_cache.result_size_limit(A)
590
#define query_cache_init() query_cache.init()
unknown's avatar
unknown committed
591
#define query_cache_resize(A) query_cache.resize(A)
592
#define query_cache_set_min_res_unit(A) query_cache.set_min_res_unit(A)
unknown's avatar
unknown committed
593 594 595 596 597 598 599
#define query_cache_invalidate3(A, B, C) query_cache.invalidate(A, B, C)
#define query_cache_invalidate1(A) query_cache.invalidate(A)
#define query_cache_send_result_to_client(A, B, C) \
  query_cache.send_result_to_client(A, B, C)
#define query_cache_invalidate_by_MyISAM_filename_ref \
  &query_cache_invalidate_by_MyISAM_filename
#else
600
#define QUERY_CACHE_FLAGS_SIZE 0
unknown's avatar
unknown committed
601 602 603
#define query_cache_store_query(A, B)
#define query_cache_destroy()
#define query_cache_result_size_limit(A)
604
#define query_cache_init()
unknown's avatar
unknown committed
605
#define query_cache_resize(A)
606
#define query_cache_set_min_res_unit(A)
unknown's avatar
unknown committed
607 608 609 610 611 612 613 614 615
#define query_cache_invalidate3(A, B, C)
#define query_cache_invalidate1(A)
#define query_cache_send_result_to_client(A, B, C) 0
#define query_cache_invalidate_by_MyISAM_filename_ref NULL

#define query_cache_abort(A)
#define query_cache_end_of_result(A)
#define query_cache_invalidate_by_MyISAM_filename_ref NULL
#endif /*HAVE_QUERY_CACHE*/
unknown's avatar
unknown committed
616

unknown's avatar
unknown committed
617 618 619 620 621
uint build_table_path(char *buff, size_t bufflen, const char *db,
                      const char *table, const char *ext);
void write_bin_log(THD *thd, bool clear_error,
                   char const *query, ulong query_length);

unknown's avatar
unknown committed
622 623 624
bool mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create, bool silent);
bool mysql_alter_db(THD *thd, const char *db, HA_CREATE_INFO *create);
bool mysql_rm_db(THD *thd,char *db,bool if_exists, bool silent);
unknown's avatar
unknown committed
625
bool mysql_rename_db(THD *thd, LEX_STRING *old_db, LEX_STRING *new_db);
626
void mysql_binlog_send(THD* thd, char* log_ident, my_off_t pos, ushort flags);
627
void mysql_client_binlog_statement(THD *thd);
unknown's avatar
unknown committed
628 629
bool mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists,
                    my_bool drop_temporary);
630
int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
unknown's avatar
VIEW  
unknown committed
631
			 bool drop_temporary, bool drop_view, bool log_query);
unknown's avatar
unknown committed
632
int mysql_rm_table_part2_with_lock(THD *thd, TABLE_LIST *tables,
633
				   bool if_exists, bool drop_temporary,
unknown's avatar
unknown committed
634
				   bool log_query);
unknown's avatar
unknown committed
635
bool quick_rm_table(handlerton *base,const char *db,
unknown's avatar
unknown committed
636
                    const char *table_name);
637
void close_cached_table(THD *thd, TABLE *table);
unknown's avatar
unknown committed
638
bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list, bool silent);
639
bool mysql_change_db(THD *thd,const char *name,bool no_access_check);
unknown's avatar
unknown committed
640
void mysql_parse(THD *thd,char *inBuf,uint length);
641
bool mysql_test_parse_for_slave(THD *thd,char *inBuf,uint length);
642
bool is_update_query(enum enum_sql_command command);
643
bool alloc_query(THD *thd, const char *packet, uint packet_length);
644
void mysql_init_select(LEX *lex);
645
void mysql_reset_thd_for_next_command(THD *thd);
unknown's avatar
unknown committed
646
void mysql_init_query(THD *thd, uchar *buf, uint length);
unknown's avatar
unknown committed
647
bool mysql_new_select(LEX *lex, bool move_down);
648
void create_select_for_variable(const char *var_name);
unknown's avatar
unknown committed
649
void mysql_init_multi_delete(LEX *lex);
650
bool multi_delete_set_locks_and_link_aux_tables(LEX *lex);
unknown's avatar
unknown committed
651
void init_max_user_conn(void);
652
void init_update_queries(void);
unknown's avatar
unknown committed
653
void free_max_user_conn(void);
654 655
pthread_handler_t handle_one_connection(void *arg);
pthread_handler_t handle_bootstrap(void *arg);
unknown's avatar
unknown committed
656 657
void end_thread(THD *thd,bool put_in_cache);
void flush_thread_cache();
unknown's avatar
unknown committed
658
bool mysql_execute_command(THD *thd);
unknown's avatar
unknown committed
659
bool do_command(THD *thd);
660 661
bool dispatch_command(enum enum_server_command command, THD *thd,
		      char* packet, uint packet_length);
unknown's avatar
unknown committed
662
void log_slow_statement(THD *thd);
663
bool check_dup(const char *db, const char *name, TABLE_LIST *tables);
664 665
bool append_file_to_dir(THD *thd, const char **filename_ptr, 
                        const char *table_name);
666

667
bool table_cache_init(void);
unknown's avatar
unknown committed
668
void table_cache_free(void);
unknown's avatar
unknown committed
669 670
bool table_def_init(void);
void table_def_free(void);
671
void assign_new_table_id(TABLE_SHARE *share);
unknown's avatar
unknown committed
672 673
uint cached_open_tables(void);
uint cached_table_definitions(void);
unknown's avatar
unknown committed
674
void kill_mysql(void);
675
void close_connection(THD *thd, uint errcode, bool lock);
unknown's avatar
unknown committed
676 677 678
bool reload_acl_and_cache(THD *thd, ulong options, TABLE_LIST *tables, 
                          bool *write_to_binlog);
bool check_access(THD *thd, ulong access, const char *db, ulong *save_priv,
679
		  bool no_grant, bool no_errors, bool schema_db);
unknown's avatar
unknown committed
680
bool check_table_access(THD *thd, ulong want_access, TABLE_LIST *tables,
unknown's avatar
unknown committed
681
			bool no_errors);
unknown's avatar
unknown committed
682
bool check_global_access(THD *thd, ulong want_access);
unknown's avatar
unknown committed
683

unknown's avatar
unknown committed
684 685 686 687
/*
  Support routine for SQL parser on partitioning syntax
*/
my_bool is_partition_management(LEX *lex);
688 689 690 691 692 693 694 695 696 697 698 699
/*
  General routine to change field->ptr of a NULL-terminated array of Field
  objects. Useful when needed to call val_int, val_str or similar and the
  field data is not in table->record[0] but in some other structure.
  set_key_field_ptr changes all fields of an index using a key_info object.
  All methods presume that there is at least one field to change.
*/

void set_field_ptr(Field **ptr, const byte *new_buf, const byte *old_buf);
void set_key_field_ptr(KEY *key_info, const byte *new_buf,
                       const byte *old_buf);

unknown's avatar
unknown committed
700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715
bool mysql_backup_table(THD* thd, TABLE_LIST* table_list);
bool mysql_restore_table(THD* thd, TABLE_LIST* table_list);

bool mysql_checksum_table(THD* thd, TABLE_LIST* table_list,
                          HA_CHECK_OPT* check_opt);
bool mysql_check_table(THD* thd, TABLE_LIST* table_list,
                       HA_CHECK_OPT* check_opt);
bool mysql_repair_table(THD* thd, TABLE_LIST* table_list,
                        HA_CHECK_OPT* check_opt);
bool mysql_analyze_table(THD* thd, TABLE_LIST* table_list,
                         HA_CHECK_OPT* check_opt);
bool mysql_optimize_table(THD* thd, TABLE_LIST* table_list,
                          HA_CHECK_OPT* check_opt);
bool mysql_assign_to_keycache(THD* thd, TABLE_LIST* table_list,
                              LEX_STRING *key_cache_name);
bool mysql_preload_keys(THD* thd, TABLE_LIST* table_list);
unknown's avatar
unknown committed
716 717
int reassign_keycache_tables(THD* thd, KEY_CACHE *src_cache,
                             KEY_CACHE *dst_cache);
718
TABLE *create_virtual_tmp_table(THD *thd, List<create_field> &field_list);
unknown's avatar
unknown committed
719

720 721
bool mysql_xa_recover(THD *thd);

722
bool check_simple_select();
unknown's avatar
unknown committed
723
int mysql_alter_tablespace(THD* thd, st_alter_tablespace *ts_info);
unknown's avatar
unknown committed
724

unknown's avatar
unknown committed
725
SORT_FIELD * make_unireg_sortorder(ORDER *order, uint *length);
726 727 728 729
int setup_order(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
		List<Item> &fields, List <Item> &all_fields, ORDER *order);
int setup_group(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
		List<Item> &fields, List<Item> &all_fields, ORDER *order,
unknown's avatar
unknown committed
730
		bool *hidden_group_fields);
unknown's avatar
unknown committed
731

732 733
bool handle_select(THD *thd, LEX *lex, select_result *result,
                   ulong setup_tables_done_option);
unknown's avatar
unknown committed
734 735 736 737 738 739
bool mysql_select(THD *thd, Item ***rref_pointer_array,
                  TABLE_LIST *tables, uint wild_num,  List<Item> &list,
                  COND *conds, uint og_num, ORDER *order, ORDER *group,
                  Item *having, ORDER *proc_param, ulong select_type, 
                  select_result *result, SELECT_LEX_UNIT *unit, 
                  SELECT_LEX *select_lex);
unknown's avatar
unknown committed
740
void free_underlaid_joins(THD *thd, SELECT_LEX *select);
unknown's avatar
unknown committed
741 742
bool mysql_explain_union(THD *thd, SELECT_LEX_UNIT *unit,
                         select_result *result);
unknown's avatar
unknown committed
743 744
int mysql_explain_select(THD *thd, SELECT_LEX *sl, char const *type,
			 select_result *result);
unknown's avatar
unknown committed
745
bool mysql_union(THD *thd, LEX *lex, select_result *result,
746
                 SELECT_LEX_UNIT *unit, ulong setup_tables_done_option);
747 748 749 750 751
bool mysql_handle_derived(LEX *lex, bool (*processor)(THD *thd,
                                                      LEX *lex,
                                                      TABLE_LIST *table));
bool mysql_derived_prepare(THD *thd, LEX *lex, TABLE_LIST *t);
bool mysql_derived_filling(THD *thd, LEX *lex, TABLE_LIST *t);
unknown's avatar
unknown committed
752
Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
unknown's avatar
unknown committed
753
			Item ***copy_func, Field **from_field,
unknown's avatar
unknown committed
754
			bool group, bool modify_item,
unknown's avatar
unknown committed
755
			bool table_cant_handle_bit_fields,
unknown's avatar
unknown committed
756
                        uint convert_blob_length);
757
void sp_prepare_create_field(THD *thd, create_field *sql_field);
unknown's avatar
unknown committed
758
int prepare_create_field(create_field *sql_field, 
unknown's avatar
unknown committed
759 760
			 uint *blob_columns, 
			 int *timestamps, int *timestamps_with_niladic,
unknown's avatar
unknown committed
761
			 uint table_flags);
unknown's avatar
unknown committed
762 763 764 765
bool mysql_create_table(THD *thd,const char *db, const char *table_name,
                        HA_CREATE_INFO *create_info,
                        List<create_field> &fields, List<Key> &keys,
                        bool tmp_table, uint select_field_count);
unknown's avatar
unknown committed
766

unknown's avatar
unknown committed
767
TABLE *create_table_from_items(THD *thd, HA_CREATE_INFO *create_info,
unknown's avatar
VIEW  
unknown committed
768
			       TABLE_LIST *create_table,
unknown's avatar
unknown committed
769 770 771
			       List<create_field> *extra_fields,
			       List<Key> *keys,
			       List<Item> *items,
unknown's avatar
unknown committed
772 773 774 775 776 777 778 779
                               MYSQL_LOCK **lock);
bool mysql_alter_table(THD *thd, char *new_db, char *new_name,
                       HA_CREATE_INFO *create_info,
                       TABLE_LIST *table_list,
                       List<create_field> &fields,
                       List<Key> &keys,
                       uint order_num, ORDER *order,
                       enum enum_duplicates handle_duplicates,
780
                       bool ignore,
unknown's avatar
unknown committed
781
                       ALTER_INFO *alter_info, bool do_send_ok);
unknown's avatar
unknown committed
782 783 784 785
bool mysql_recreate_table(THD *thd, TABLE_LIST *table_list, bool do_send_ok);
bool mysql_create_like_table(THD *thd, TABLE_LIST *table,
                             HA_CREATE_INFO *create_info,
                             Table_ident *src_table);
unknown's avatar
unknown committed
786
bool mysql_rename_table(handlerton *base,
unknown's avatar
unknown committed
787 788 789 790
			const char *old_db,
			const char * old_name,
			const char *new_db,
			const char * new_name);
unknown's avatar
unknown committed
791 792 793
bool mysql_create_index(THD *thd, TABLE_LIST *table_list, List<Key> &keys);
bool mysql_drop_index(THD *thd, TABLE_LIST *table_list,
                      ALTER_INFO *alter_info);
unknown's avatar
unknown committed
794 795
bool mysql_prepare_update(THD *thd, TABLE_LIST *table_list,
                          Item **conds, uint order_num, ORDER *order);
unknown's avatar
unknown committed
796 797 798
int mysql_update(THD *thd,TABLE_LIST *tables,List<Item> &fields,
		 List<Item> &values,COND *conds,
		 uint order_num, ORDER *order, ha_rows limit,
799
		 enum enum_duplicates handle_duplicates, bool ignore);
unknown's avatar
unknown committed
800 801
bool mysql_multi_update(THD *thd, TABLE_LIST *table_list,
                        List<Item> *fields, List<Item> *values,
802
                        COND *conds, ulonglong options,
803
                        enum enum_duplicates handle_duplicates, bool ignore,
unknown's avatar
unknown committed
804 805 806 807
                        SELECT_LEX_UNIT *unit, SELECT_LEX *select_lex);
bool mysql_prepare_insert(THD *thd, TABLE_LIST *table_list, TABLE *table,
                          List<Item> &fields, List_item *values,
                          List<Item> &update_fields,
unknown's avatar
unknown committed
808 809
                          List<Item> &update_values, enum_duplicates duplic,
                          COND **where, bool select_insert);
unknown's avatar
unknown committed
810 811
bool mysql_insert(THD *thd,TABLE_LIST *table,List<Item> &fields,
                  List<List_item> &values, List<Item> &update_fields,
812 813
                  List<Item> &update_values, enum_duplicates flag,
                  bool ignore);
814 815
int check_that_all_fields_are_given_values(THD *thd, TABLE *entry,
                                           TABLE_LIST *table_list);
unknown's avatar
unknown committed
816
bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds);
unknown's avatar
unknown committed
817 818 819
bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
                  SQL_LIST *order, ha_rows rows, ulonglong options,
                  bool reset_auto_increment);
unknown's avatar
unknown committed
820 821
bool mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok);
bool mysql_create_or_drop_trigger(THD *thd, TABLE_LIST *tables, bool create);
822
uint create_table_def_key(THD *thd, char *key, TABLE_LIST *table_list,
unknown's avatar
unknown committed
823
                          bool tmp_table);
824
TABLE_SHARE *get_table_share(THD *thd, TABLE_LIST *table_list, char *key,
unknown's avatar
unknown committed
825 826 827
                             uint key_length, uint db_flags, int *error);
void release_table_share(TABLE_SHARE *share, enum release_type type);
TABLE_SHARE *get_cached_table_share(const char *db, const char *table_name);
unknown's avatar
unknown committed
828
TABLE *open_ltable(THD *thd, TABLE_LIST *table_list, thr_lock_type update);
unknown's avatar
VIEW  
unknown committed
829
TABLE *open_table(THD *thd, TABLE_LIST *table_list, MEM_ROOT* mem,
830
		  bool *refresh, uint flags);
831
bool reopen_name_locked_table(THD* thd, TABLE_LIST* table);
unknown's avatar
unknown committed
832 833 834 835
TABLE *find_locked_table(THD *thd, const char *db,const char *table_name);
bool reopen_tables(THD *thd,bool get_locks,bool in_refresh);
bool close_data_tables(THD *thd,const char *db, const char *table_name);
bool wait_for_tables(THD *thd);
unknown's avatar
unknown committed
836
bool table_is_used(TABLE *table, bool wait_for_name_lock);
unknown's avatar
unknown committed
837 838
bool drop_locked_tables(THD *thd,const char *db, const char *table_name);
void abort_locked_tables(THD *thd,const char *db, const char *table_name);
839 840
void execute_init_command(THD *thd, sys_var_str *init_command_var,
			  rw_lock_t *var_mutex);
unknown's avatar
unknown committed
841 842
extern Field *not_found_field;
extern Field *view_ref_found;
843 844 845 846

enum find_item_error_report_type {REPORT_ALL_ERRORS, REPORT_EXCEPT_NOT_FOUND,
				  IGNORE_ERRORS, REPORT_EXCEPT_NON_UNIQUE,
                                  IGNORE_EXCEPT_NON_UNIQUE};
847
Field *
unknown's avatar
unknown committed
848 849 850 851
find_field_in_tables(THD *thd, Item_ident *item,
                     TABLE_LIST *first_table, TABLE_LIST *last_table,
                     Item **ref, find_item_error_report_type report_error,
                     bool check_privileges, bool register_tree_change);
852
Field *
unknown's avatar
unknown committed
853
find_field_in_table_ref(THD *thd, TABLE_LIST *table_list,
854 855 856
                        const char *name, uint length,
                        const char *item_name, const char *db_name,
                        const char *table_name, Item **ref,
857
                        bool check_privileges, bool allow_rowid,
unknown's avatar
unknown committed
858 859
                        uint *cached_field_index_ptr,
                        bool register_tree_change, TABLE_LIST **actual_table);
860
Field *
861 862
find_field_in_table(THD *thd, TABLE *table, const char *name, uint length,
                    bool allow_rowid, uint *cached_field_index_ptr);
863 864 865
Field *
find_field_in_table_sef(TABLE *table, const char *name);

866 867
#endif /* MYSQL_SERVER */

unknown's avatar
unknown committed
868
#ifdef HAVE_OPENSSL
869
#include <openssl/des.h>
870 871
struct st_des_keyblock
{
unknown's avatar
unknown committed
872
  DES_cblock key1, key2, key3;
unknown's avatar
unknown committed
873 874 875
};
struct st_des_keyschedule
{
876
  DES_key_schedule ks1, ks2, ks3;
unknown's avatar
unknown committed
877
};
unknown's avatar
unknown committed
878
extern char *des_key_file;
unknown's avatar
unknown committed
879
extern struct st_des_keyschedule des_keyschedule[10];
unknown's avatar
unknown committed
880
extern uint des_default_key;
unknown's avatar
unknown committed
881 882
extern pthread_mutex_t LOCK_des_key_file;
bool load_des_key_file(const char *file_name);
unknown's avatar
unknown committed
883
#endif /* HAVE_OPENSSL */
unknown's avatar
unknown committed
884

885
#ifdef MYSQL_SERVER
unknown's avatar
unknown committed
886
/* sql_do.cc */
unknown's avatar
unknown committed
887
bool mysql_do(THD *thd, List<Item> &values);
unknown's avatar
unknown committed
888

889 890 891
/* sql_analyse.h */
bool append_escaped(String *to_str, String *from_str);

unknown's avatar
unknown committed
892
/* sql_show.cc */
unknown's avatar
unknown committed
893 894
bool mysqld_show_open_tables(THD *thd,const char *wild);
bool mysqld_show_logs(THD *thd);
895 896
void append_identifier(THD *thd, String *packet, const char *name,
		       uint length);
897
int get_quote_char_for_identifier(THD *thd, const char *name, uint length);
unknown's avatar
unknown committed
898
void mysqld_list_fields(THD *thd,TABLE_LIST *table, const char *wild);
unknown's avatar
unknown committed
899
int mysqld_dump_create_info(THD *thd, TABLE_LIST *table_list, int fd);
unknown's avatar
unknown committed
900 901
bool mysqld_show_create(THD *thd, TABLE_LIST *table_list);
bool mysqld_show_create_db(THD *thd, char *dbname, HA_CREATE_INFO *create);
unknown's avatar
unknown committed
902 903 904 905

void mysqld_list_processes(THD *thd,const char *user,bool verbose);
int mysqld_show_status(THD *thd);
int mysqld_show_variables(THD *thd,const char *wild);
906 907
int mysql_find_files(THD *thd,List<char> *files, const char *db,
                const char *path, const char *wild, bool dir);
unknown's avatar
unknown committed
908
bool mysqld_show_storage_engines(THD *thd);
unknown's avatar
unknown committed
909
bool mysqld_show_authors(THD *thd);
unknown's avatar
unknown committed
910 911 912
bool mysqld_show_privileges(THD *thd);
bool mysqld_show_column_types(THD *thd);
bool mysqld_help (THD *thd, const char *text);
913
void calc_sum_of_all_status(STATUS_VAR *to);
unknown's avatar
unknown committed
914

915 916 917
void append_definer(THD *thd, String *buffer, const LEX_STRING *definer_user,
                    const LEX_STRING *definer_host);

918 919 920 921
int add_status_vars(SHOW_VAR *list);
void remove_status_vars(SHOW_VAR *list);
void init_status_vars();
void free_status_vars();
922

923 924
/* information schema */
extern LEX_STRING information_schema_name;
unknown's avatar
unknown committed
925
extern const LEX_STRING partition_keywords[];
926 927
LEX_STRING *make_lex_string(THD *thd, LEX_STRING *lex_str,
                            const char* str, uint length,
unknown's avatar
unknown committed
928
                            bool allocate_lex_string);
929 930 931 932 933 934 935 936 937 938 939
ST_SCHEMA_TABLE *find_schema_table(THD *thd, const char* table_name);
ST_SCHEMA_TABLE *get_schema_table(enum enum_schema_tables schema_table_idx);
int prepare_schema_table(THD *thd, LEX *lex, Table_ident *table_ident,
                         enum enum_schema_tables schema_table_idx);
int make_schema_select(THD *thd,  SELECT_LEX *sel,
                       enum enum_schema_tables schema_table_idx);
int mysql_schema_table(THD *thd, LEX *lex, TABLE_LIST *table_list);
int fill_schema_user_privileges(THD *thd, TABLE_LIST *tables, COND *cond);
int fill_schema_schema_privileges(THD *thd, TABLE_LIST *tables, COND *cond);
int fill_schema_table_privileges(THD *thd, TABLE_LIST *tables, COND *cond);
int fill_schema_column_privileges(THD *thd, TABLE_LIST *tables, COND *cond);
unknown's avatar
unknown committed
940
bool get_schema_tables_result(JOIN *join);
941 942
#define is_schema_db(X) \
  !my_strcasecmp(system_charset_info, information_schema_name.str, (X))
943

unknown's avatar
unknown committed
944
/* sql_prepare.cc */
945 946

void mysql_stmt_prepare(THD *thd, const char *packet, uint packet_length);
947
void mysql_stmt_execute(THD *thd, char *packet, uint packet_length);
948
void mysql_stmt_close(THD *thd, char *packet);
949 950 951 952
void mysql_sql_stmt_prepare(THD *thd);
void mysql_sql_stmt_execute(THD *thd);
void mysql_sql_stmt_close(THD *thd);
void mysql_stmt_fetch(THD *thd, char *packet, uint packet_length);
953
void mysql_stmt_reset(THD *thd, char *packet);
954
void mysql_stmt_get_longdata(THD *thd, char *pos, ulong packet_length);
955
void reinit_stmt_before_use(THD *thd, LEX *lex);
unknown's avatar
unknown committed
956

957
/* sql_handler.cc */
unknown's avatar
unknown committed
958
bool mysql_ha_open(THD *thd, TABLE_LIST *tables, bool reopen);
unknown's avatar
merge  
unknown committed
959
bool mysql_ha_close(THD *thd, TABLE_LIST *tables);
unknown's avatar
unknown committed
960 961
bool mysql_ha_read(THD *, TABLE_LIST *,enum enum_ha_read_modes,char *,
                   List<Item> *,enum ha_rkey_function,Item *,ha_rows,ha_rows);
962 963
int mysql_ha_flush(THD *thd, TABLE_LIST *tables, uint mode_flags,
                   bool is_locked);
964 965 966 967
/* mysql_ha_flush mode_flags bits */
#define MYSQL_HA_CLOSE_FINAL        0x00
#define MYSQL_HA_REOPEN_ON_USAGE    0x01
#define MYSQL_HA_FLUSH_ALL          0x02
968

unknown's avatar
unknown committed
969
/* sql_base.cc */
unknown's avatar
unknown committed
970
#define TMP_TABLE_KEY_EXTRA 8
unknown's avatar
unknown committed
971
void set_item_name(Item *item,char *pos,uint length);
unknown's avatar
unknown committed
972
bool add_field_to_list(THD *thd, char *field_name, enum enum_field_types type,
unknown's avatar
unknown committed
973
		       char *length, char *decimal,
974
		       uint type_modifier,
975
		       Item *default_value, Item *on_update_value,
unknown's avatar
unknown committed
976
		       LEX_STRING *comment,
977 978
		       char *change, List<String> *interval_list,
		       CHARSET_INFO *cs,
unknown's avatar
unknown committed
979
		       uint uint_geom_type);
unknown's avatar
unknown committed
980 981 982 983 984 985 986
create_field * new_create_field(THD *thd, char *field_name, enum_field_types type,
				char *length, char *decimals,
				uint type_modifier, 
				Item *default_value, Item *on_update_value,
				LEX_STRING *comment, char *change, 
				List<String> *interval_list, CHARSET_INFO *cs,
				uint uint_geom_type);
unknown's avatar
unknown committed
987
void store_position_for_column(const char *name);
unknown's avatar
unknown committed
988
bool add_to_list(THD *thd, SQL_LIST &list,Item *group,bool asc);
989 990 991
bool push_new_name_resolution_context(THD *thd,
                                      TABLE_LIST *left_op,
                                      TABLE_LIST *right_op);
unknown's avatar
unknown committed
992
void add_join_on(TABLE_LIST *b,Item *expr);
unknown's avatar
unknown committed
993
void add_join_natural(TABLE_LIST *a,TABLE_LIST *b,List<String> *using_fields);
unknown's avatar
unknown committed
994
bool add_proc_to_list(THD *thd, Item *item);
unknown's avatar
unknown committed
995
TABLE *unlink_open_table(THD *thd,TABLE *list,TABLE *find);
996 997 998
void update_non_unique_table_error(TABLE_LIST *update,
                                   const char *operation,
                                   TABLE_LIST *duplicate);
unknown's avatar
unknown committed
999 1000

SQL_SELECT *make_select(TABLE *head, table_map const_tables,
unknown's avatar
unknown committed
1001 1002
			table_map read_tables, COND *conds,
                        bool allow_null_cond,  int *error);
unknown's avatar
unknown committed
1003
extern Item **not_found_item;
1004
Item ** find_item_in_list(Item *item, List<Item> &items, uint *counter,
1005 1006
                          find_item_error_report_type report_error,
                          bool *unaliased);
1007
bool get_key_map_from_key_list(key_map *map, TABLE *table,
1008
                               List<String> *index_list);
1009
bool insert_fields(THD *thd, Name_resolution_context *context,
1010
		   const char *db_name, const char *table_name,
1011 1012
                   List_iterator<Item> *it, bool any_privileges);
bool setup_tables(THD *thd, Name_resolution_context *context,
unknown's avatar
unknown committed
1013 1014
                  List<TABLE_LIST> *from_clause, TABLE_LIST *tables,
                  Item **conds, TABLE_LIST **leaves, bool select_insert);
1015 1016
int setup_wild(THD *thd, TABLE_LIST *tables, List<Item> &fields,
	       List<Item> *sum_func_list, uint wild_num);
1017
bool setup_fields(THD *thd, Item** ref_pointer_array,
1018
                  List<Item> &item, ulong set_query_id,
unknown's avatar
unknown committed
1019
                  List<Item> *sum_func_list, bool allow_sum_func);
1020
inline bool setup_fields_with_no_wrap(THD *thd, Item **ref_pointer_array,
unknown's avatar
unknown committed
1021
                                     List<Item> &item, ulong set_query_id,
1022 1023 1024 1025 1026 1027 1028 1029 1030 1031
                                     List<Item> *sum_func_list,
                                     bool allow_sum_func)
{
  bool res;
  thd->lex->select_lex.no_wrap_view_item= TRUE;
  res= setup_fields(thd, ref_pointer_array, item, set_query_id, sum_func_list,
                    allow_sum_func);
  thd->lex->select_lex.no_wrap_view_item= FALSE;
  return res;
}
1032 1033
int setup_conds(THD *thd, TABLE_LIST *tables, TABLE_LIST *leaves,
		COND **conds);
1034 1035
int setup_ftfuncs(SELECT_LEX* select);
int init_ftfuncs(THD *thd, SELECT_LEX* select, bool no_order);
unknown's avatar
unknown committed
1036 1037
void wait_for_condition(THD *thd, pthread_mutex_t *mutex,
                        pthread_cond_t *cond);
1038
int open_tables(THD *thd, TABLE_LIST **tables, uint *counter, uint flags);
1039
int simple_open_n_lock_tables(THD *thd,TABLE_LIST *tables);
unknown's avatar
unknown committed
1040
bool open_and_lock_tables(THD *thd,TABLE_LIST *tables);
1041
bool open_normal_and_derived_tables(THD *thd, TABLE_LIST *tables, uint flags);
1042
int lock_tables(THD *thd, TABLE_LIST *tables, uint counter, bool *need_reopen);
unknown's avatar
unknown committed
1043 1044
TABLE *open_temporary_table(THD *thd, const char *path, const char *db,
			    const char *table_name, bool link_in_list);
unknown's avatar
unknown committed
1045
bool rm_temporary_table(handlerton *base, char *path);
unknown's avatar
unknown committed
1046 1047
void free_io_cache(TABLE *entry);
void intern_close_table(TABLE *entry);
1048
bool close_thread_table(THD *thd, TABLE **table_ptr);
unknown's avatar
unknown committed
1049
void close_temporary_tables(THD *thd);
1050
void close_tables_for_reopen(THD *thd, TABLE_LIST **tables);
1051
TABLE_LIST *find_table_in_list(TABLE_LIST *table,
1052
                               st_table_list *TABLE_LIST::*link,
1053 1054
                               const char *db_name,
                               const char *table_name);
1055
TABLE_LIST *unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list);
unknown's avatar
unknown committed
1056 1057 1058 1059 1060 1061
TABLE *find_temporary_table(THD *thd, const char *db, const char *table_name);
TABLE *find_temporary_table(THD *thd, TABLE_LIST *table_list);
bool close_temporary_table(THD *thd, TABLE_LIST *table_list);
void close_temporary_table(THD *thd, TABLE *table, bool free_share,
                           bool delete_table);
void close_temporary(TABLE *table, bool free_share, bool delete_table);
1062
bool rename_temporary_table(THD* thd, TABLE *table, const char *new_db,
unknown's avatar
unknown committed
1063
			    const char *table_name);
1064
void remove_db_from_cache(const char *db);
unknown's avatar
unknown committed
1065
void flush_tables();
1066
bool is_equal(const LEX_STRING *a, const LEX_STRING *b);
unknown's avatar
unknown committed
1067

unknown's avatar
unknown committed
1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083
#ifdef WITH_PARTITION_STORAGE_ENGINE
uint fast_alter_partition_table(THD *thd, TABLE *table,
                                ALTER_INFO *alter_info,
                                HA_CREATE_INFO *create_info,
                                TABLE_LIST *table_list,
                                List<create_field> *create_list,
                                List<Key> *key_list, const char *db,
                                const char *table_name,
                                uint fast_alter_partition);
uint prep_alter_part_table(THD *thd, TABLE *table, ALTER_INFO *alter_info,
                           HA_CREATE_INFO *create_info,
                           handlerton *old_db_type,
                           bool *partition_changed,
                           uint *fast_alter_partition);
#endif

unknown's avatar
unknown committed
1084
/* bits for last argument to remove_table_from_cache() */
unknown's avatar
unknown committed
1085 1086 1087 1088
#define RTFC_NO_FLAG                0x0000
#define RTFC_OWNED_BY_THD_FLAG      0x0001
#define RTFC_WAIT_OTHER_THREAD_FLAG 0x0002
#define RTFC_CHECK_KILLED_FLAG      0x0004
1089
bool remove_table_from_cache(THD *thd, const char *db, const char *table,
unknown's avatar
unknown committed
1090
                             uint flags);
unknown's avatar
unknown committed
1091

unknown's avatar
unknown committed
1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121
typedef struct st_lock_param_type
{
  ulonglong copied;
  ulonglong deleted;
  THD *thd;
  HA_CREATE_INFO *create_info;
  List<create_field> *create_list;
  List<create_field> new_create_list;
  List<Key> *key_list;
  List<Key> new_key_list;
  TABLE *table;
  KEY *key_info_buffer;
  const char *db;
  const char *table_name;
  const void *pack_frm_data;
  enum thr_lock_type old_lock_type;
  uint key_count;
  uint db_options;
  uint pack_frm_len;
} ALTER_PARTITION_PARAM_TYPE;

void mem_alloc_error(size_t size);
#define WFRM_INITIAL_WRITE 1
#define WFRM_CREATE_HANDLER_FILES 2
#define WFRM_PACK_FRM 4
bool mysql_write_frm(ALTER_PARTITION_PARAM_TYPE *lpt, uint flags);
bool abort_and_upgrade_lock(ALTER_PARTITION_PARAM_TYPE *lpt);
void close_open_tables_and_downgrade(ALTER_PARTITION_PARAM_TYPE *lpt);
void mysql_wait_completed_table(ALTER_PARTITION_PARAM_TYPE *lpt, TABLE *my_table);

unknown's avatar
unknown committed
1122
bool close_cached_tables(THD *thd, bool wait_for_refresh, TABLE_LIST *tables, bool have_lock = FALSE);
unknown's avatar
unknown committed
1123
void copy_field_from_tmp_record(Field *field,int offset);
unknown's avatar
unknown committed
1124 1125
bool fill_record(THD *thd, Field **field, List<Item> &values,
                 bool ignore_errors);
unknown's avatar
unknown committed
1126 1127 1128 1129 1130 1131 1132 1133 1134 1135
bool fill_record_n_invoke_before_triggers(THD *thd, List<Item> &fields,
                                          List<Item> &values,
                                          bool ignore_errors,
                                          Table_triggers_list *triggers,
                                          enum trg_event_type event);
bool fill_record_n_invoke_before_triggers(THD *thd, Field **field,
                                          List<Item> &values,
                                          bool ignore_errors,
                                          Table_triggers_list *triggers,
                                          enum trg_event_type event);
1136
OPEN_TABLE_LIST *list_open_tables(THD *thd, const char *db, const char *wild);
unknown's avatar
unknown committed
1137

1138 1139 1140 1141
inline TABLE_LIST *find_table_in_global_list(TABLE_LIST *table,
                                             const char *db_name,
                                             const char *table_name)
{
1142
  return find_table_in_list(table, &TABLE_LIST::next_global,
1143 1144 1145 1146 1147 1148 1149
                            db_name, table_name);
}

inline TABLE_LIST *find_table_in_local_list(TABLE_LIST *table,
                                            const char *db_name,
                                            const char *table_name)
{
1150
  return find_table_in_list(table, &TABLE_LIST::next_local,
1151 1152 1153 1154
                            db_name, table_name);
}


unknown's avatar
unknown committed
1155 1156 1157 1158
/* sql_calc.cc */
bool eval_const_cond(COND *cond);

/* sql_load.cc */
unknown's avatar
merge  
unknown committed
1159
bool mysql_load(THD *thd, sql_exchange *ex, TABLE_LIST *table_list,
unknown's avatar
unknown committed
1160 1161 1162
	        List<Item> &fields_vars, List<Item> &set_fields,
                List<Item> &set_values_list,
                enum enum_duplicates handle_duplicates, bool ignore,
1163
                bool local_file);
unknown's avatar
unknown committed
1164
int write_record(THD *thd, TABLE *table, COPY_INFO *info);
1165 1166 1167 1168

/* sql_manager.cc */
/* bits set in manager_status */
#define MANAGER_BERKELEY_LOG_CLEANUP    (1L << 0)
1169
extern ulong volatile manager_status;
1170
extern bool volatile manager_thread_in_use, mqh_used;
1171
extern pthread_t manager_thread;
1172
pthread_handler_t handle_manager(void *arg);
1173 1174
bool mysql_manager_submit(void (*action)());

1175

unknown's avatar
unknown committed
1176 1177 1178 1179
/* sql_test.cc */
#ifndef DBUG_OFF
void print_where(COND *cond,const char *info);
void print_cached_tables(void);
1180
void TEST_filesort(SORT_FIELD *sortorder,uint s_length);
1181 1182
void print_plan(JOIN* join, double read_time, double record_count,
                uint idx, const char *info);
unknown's avatar
unknown committed
1183
#endif
1184
void mysql_print_status();
unknown's avatar
unknown committed
1185
/* key.cc */
unknown's avatar
unknown committed
1186
int find_ref_key(KEY *key, uint key_count, Field *field, uint *key_length);
1187 1188 1189
void key_copy(byte *to_key, byte *from_record, KEY *key_info, uint key_length);
void key_restore(byte *to_record, byte *from_key, KEY *key_info,
                 uint key_length);
unknown's avatar
unknown committed
1190
bool key_cmp_if_same(TABLE *form,const byte *key,uint index,uint key_length);
unknown's avatar
unknown committed
1191 1192
void key_unpack(String *to,TABLE *form,uint index);
bool check_if_key_used(TABLE *table, uint idx, List<Item> &fields);
unknown's avatar
unknown committed
1193
int key_cmp(KEY_PART_INFO *key_part, const byte *key, uint key_length);
1194
int key_rec_cmp(void *key_info, byte *a, byte *b);
unknown's avatar
unknown committed
1195

unknown's avatar
unknown committed
1196
bool init_errmessage(void);
1197
#endif /* MYSQL_SERVER */
unknown's avatar
unknown committed
1198
void sql_perror(const char *message);
unknown's avatar
unknown committed
1199

1200
int vprint_msg_to_log(enum loglevel level, const char *format, va_list args);
1201 1202 1203
void sql_print_error(const char *format, ...);
void sql_print_warning(const char *format, ...);
void sql_print_information(const char *format, ...);
unknown's avatar
unknown committed
1204

1205
/* type of the log table */
unknown's avatar
unknown committed
1206 1207
#define QUERY_LOG_SLOW 1
#define QUERY_LOG_GENERAL 2
unknown's avatar
unknown committed
1208

1209 1210 1211 1212 1213 1214 1215 1216
int error_log_print(enum loglevel level, const char *format,
                    va_list args);

bool slow_log_print(THD *thd, const char *query, uint query_length,
                    time_t query_start_arg);

bool general_log_print(THD *thd, enum enum_server_command command,
                       const char *format,...);
unknown's avatar
unknown committed
1217

1218 1219
bool fn_format_relative_to_data_home(my_string to, const char *name,
				     const char *dir, const char *extension);
1220
#ifdef MYSQL_SERVER
1221 1222
File open_binlog(IO_CACHE *log, const char *log_file_name,
                 const char **errmsg);
unknown's avatar
unknown committed
1223

1224 1225 1226
/* mysqld.cc */
extern void yyerror(const char*);

1227 1228 1229
/* item_func.cc */
extern bool check_reserved_words(LEX_STRING *name);

1230
/* strfunc.cc */
1231
ulonglong find_set(TYPELIB *lib, const char *x, uint length, CHARSET_INFO *cs,
1232 1233
		   char **err_pos, uint *err_len, bool *set_warning);
uint find_type(TYPELIB *lib, const char *find, uint length, bool part_match);
1234
uint find_type2(TYPELIB *lib, const char *find, uint length, CHARSET_INFO *cs);
1235
void unhex_type2(TYPELIB *lib);
1236 1237 1238
uint check_word(TYPELIB *lib, const char *val, const char *end,
		const char **end_of_word);

1239

1240
bool is_keyword(const char *name, uint len);
unknown's avatar
unknown committed
1241

1242
#define MY_DB_OPT_FILE "db.opt"
unknown's avatar
unknown committed
1243 1244
bool my_database_names_init(void);
void my_database_names_free(void);
1245
bool load_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create);
unknown's avatar
unknown committed
1246
void my_dbopt_cleanup(void);
unknown's avatar
unknown committed
1247 1248
extern int creating_database; // How many database locks are made
extern int creating_table;    // How many mysql_create_table() are running
unknown's avatar
unknown committed
1249

unknown's avatar
unknown committed
1250 1251 1252 1253 1254
/*
  External variables
*/

extern time_t start_time;
unknown's avatar
unknown committed
1255
extern char *mysql_data_home,server_version[SERVER_VERSION_LENGTH],
unknown's avatar
unknown committed
1256
	    mysql_real_data_home[], *opt_mysql_tmpdir, mysql_charsets_dir[],
1257
            def_ft_boolean_syntax[sizeof(ft_boolean_syntax)];
unknown's avatar
unknown committed
1258 1259
#define mysql_tmpdir (my_tmpdir(&mysql_tmpdir_list))
extern MY_TMPDIR mysql_tmpdir_list;
1260
extern LEX_STRING command_name[];
unknown's avatar
unknown committed
1261
extern const char *first_keyword, *my_localhost, *delayed_user, *binary_keyword;
unknown's avatar
unknown committed
1262 1263
extern const char **errmesg;			/* Error messages */
extern const char *myisam_recover_options_str;
1264
extern const char *in_left_expr_name, *in_additional_cond;
1265
extern const char * const triggers_file_ext;
1266
extern const char * const trigname_file_ext;
unknown's avatar
unknown committed
1267 1268 1269 1270 1271 1272
extern Eq_creator eq_creator;
extern Ne_creator ne_creator;
extern Gt_creator gt_creator;
extern Lt_creator lt_creator;
extern Ge_creator ge_creator;
extern Le_creator le_creator;
1273
extern char language[FN_REFLEN], reg_ext[FN_EXTLEN];
1274
extern uint reg_ext_length;
unknown's avatar
unknown committed
1275
extern char glob_hostname[FN_REFLEN], mysql_home[FN_REFLEN];
1276
extern char pidfile_name[FN_REFLEN], system_time_zone[30], *opt_init_file;
unknown's avatar
unknown committed
1277
extern char log_error_file[FN_REFLEN], *opt_tc_log_file;
unknown's avatar
unknown committed
1278
extern double log_10[32];
1279
extern ulonglong log_10_int[20];
1280
extern ulonglong keybuff_size;
1281
extern ulonglong thd_startup_options;
1282
extern ulong refresh_version,flush_version, thread_id;
1283
extern ulong binlog_cache_use, binlog_cache_disk_use;
unknown's avatar
unknown committed
1284 1285 1286 1287 1288
extern ulong aborted_threads,aborted_connects;
extern ulong delayed_insert_timeout;
extern ulong delayed_insert_limit, delayed_queue_size;
extern ulong delayed_insert_threads, delayed_insert_writes;
extern ulong delayed_rows_in_use,delayed_insert_errors;
1289 1290
extern ulong slave_open_temp_tables;
extern ulong query_cache_size, query_cache_min_res_unit;
1291
extern ulong slow_launch_threads, slow_launch_time;
unknown's avatar
unknown committed
1292
extern ulong table_cache_size, table_def_size;
unknown's avatar
unknown committed
1293
extern ulong max_connections,max_connect_errors, connect_timeout;
1294
extern ulong slave_net_timeout, slave_trans_retries;
1295
extern uint max_user_connections;
1296
extern ulong what_to_log,flush_time;
1297
extern ulong query_buff_size, thread_stack;
unknown's avatar
unknown committed
1298
extern ulong binlog_cache_size, max_binlog_cache_size, open_files_limit;
1299
extern ulong max_binlog_size, max_relay_log_size;
1300 1301 1302
#ifdef HAVE_ROW_BASED_REPLICATION
extern ulong opt_binlog_rows_event_max_size;
#endif
1303
extern ulong rpl_recovery_rank, thread_cache_size;
1304
extern ulong back_log;
unknown's avatar
unknown committed
1305
extern ulong specialflag, current_pid;
1306
extern ulong expire_logs_days, sync_binlog_period, sync_binlog_counter;
1307 1308
extern ulong opt_tc_log_size, tc_log_max_pages_used, tc_log_page_size;
extern ulong tc_log_page_waits;
1309
extern my_bool relay_log_purge, opt_innodb_safe_binlog, opt_innodb;
unknown's avatar
unknown committed
1310
extern uint test_flags,select_errors,ha_open_options;
1311
extern uint protocol_version, mysqld_port, dropping_tables;
unknown's avatar
unknown committed
1312
extern uint delay_key_write_options, lower_case_table_names;
1313 1314
extern bool opt_endinfo, using_udf_functions;
extern my_bool locked_in_memory;
1315
extern bool opt_using_transactions, mysqld_embedded;
1316
extern bool using_update_log, opt_large_files, server_id_supplied;
1317
extern bool opt_log, opt_update_log, opt_bin_log, opt_slow_log, opt_error_log;
1318
extern bool opt_disable_networking, opt_skip_show_db;
1319
extern my_bool opt_character_set_client_handshake;
unknown's avatar
unknown committed
1320
extern bool volatile abort_loop, shutdown_in_progress, grant_option;
1321
extern bool mysql_proc_table_exists;
unknown's avatar
unknown committed
1322
extern uint volatile thread_count, thread_running, global_read_lock;
1323
extern my_bool opt_sql_bin_update, opt_safe_user_create, opt_no_mix_types;
unknown's avatar
unknown committed
1324
extern my_bool opt_safe_show_db, opt_local_infile, opt_myisam_use_mmap;
1325
extern my_bool opt_slave_compressed_protocol, use_temp_pool;
1326
extern my_bool opt_readonly, lower_case_file_system;
1327
extern my_bool opt_enable_named_pipe, opt_sync_frm, opt_allow_suspicious_udfs;
1328
extern my_bool opt_secure_auth;
unknown's avatar
unknown committed
1329
extern my_bool opt_log_slow_admin_statements;
1330
extern my_bool sp_automatic_privileges, opt_noacl;
1331
extern my_bool opt_old_style_user_limits, trust_function_creators;
unknown's avatar
unknown committed
1332
extern uint opt_crash_binlog_innodb;
1333
extern char *shared_memory_base_name, *mysqld_unix_port;
unknown's avatar
unknown committed
1334
extern my_bool opt_enable_shared_memory;
1335
extern char *default_tz_name;
1336 1337
extern my_bool opt_large_pages;
extern uint opt_large_page_size;
unknown's avatar
unknown committed
1338

1339 1340 1341
extern MYSQL_LOG mysql_bin_log;
extern LOGGER logger;
extern TABLE_LIST general_log, slow_log;
1342
extern FILE *bootstrap_file;
1343
extern int bootstrap_error;
1344
extern FILE *stderror_file;
unknown's avatar
unknown committed
1345
extern pthread_key(MEM_ROOT**,THR_MALLOC);
unknown's avatar
unknown committed
1346
extern pthread_mutex_t LOCK_mysql_create_db,LOCK_Acl,LOCK_open, LOCK_lock_db,
unknown's avatar
unknown committed
1347
       LOCK_thread_count,LOCK_mapped_file,LOCK_user_locks, LOCK_status,
unknown's avatar
unknown committed
1348
       LOCK_error_log, LOCK_delayed_insert, LOCK_uuid_generator,
unknown's avatar
unknown committed
1349
       LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_timezone,
1350
       LOCK_slave_list, LOCK_active_mi, LOCK_manager, LOCK_global_read_lock,
1351
       LOCK_global_system_variables, LOCK_user_conn,
unknown's avatar
unknown committed
1352
       LOCK_bytes_sent, LOCK_bytes_received;
1353 1354 1355
#ifdef HAVE_OPENSSL
extern pthread_mutex_t LOCK_des_key_file;
#endif
unknown's avatar
unknown committed
1356 1357 1358
extern pthread_mutex_t LOCK_server_started;
extern pthread_cond_t COND_server_started;
extern int mysqld_server_started;
unknown's avatar
unknown committed
1359
extern rw_lock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave;
1360
extern pthread_cond_t COND_refresh, COND_thread_count, COND_manager;
unknown's avatar
unknown committed
1361
extern pthread_attr_t connection_attrib;
unknown's avatar
unknown committed
1362
extern I_List<THD> threads;
1363
extern I_List<NAMED_LIST> key_caches;
1364
extern MY_BITMAP temp_pool;
unknown's avatar
SCRUM  
unknown committed
1365
extern String my_empty_string;
1366
extern const String my_null_string;
1367
extern SHOW_VAR init_vars[], status_vars[], internal_vars[];
1368
extern struct system_variables global_system_variables;
unknown's avatar
unknown committed
1369
extern struct system_variables max_system_variables;
1370
extern struct system_status_var global_status_var;
1371
extern struct rand_struct sql_rand;
unknown's avatar
unknown committed
1372

1373 1374
extern const char *opt_date_time_formats[];
extern KNOWN_DATE_TIME_FORMAT known_date_time_formats[];
1375

unknown's avatar
unknown committed
1376
extern String null_string;
unknown's avatar
unknown committed
1377
extern HASH open_cache, lock_db_cache;
1378 1379 1380
extern TABLE *unused_tables;
extern const char* any_db;
extern struct my_option my_long_options[];
1381
extern const LEX_STRING view_type;
unknown's avatar
unknown committed
1382

unknown's avatar
unknown committed
1383 1384
/* optional things, have_* variables */

1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418
#ifdef WITH_INNOBASE_STORAGE_ENGINE
extern handlerton innobase_hton;
#define have_innodb innobase_hton.state
#else
extern SHOW_COMP_OPTION have_innodb;
#endif
#ifdef WITH_BERKELEY_STORAGE_ENGINE
extern handlerton berkeley_hton;
#define have_berkeley_db berkeley_hton.state
#else
extern SHOW_COMP_OPTION have_berkeley_db;
#endif
#ifdef WITH_EXAMPLE_STORAGE_ENGINE
extern handlerton example_hton;
#define have_example_db example_hton.state
#else
extern SHOW_COMP_OPTION have_example_db;
#endif
#ifdef WITH_ARCHIVE_STORAGE_ENGINE
extern handlerton archive_hton;
#define have_archive_db archive_hton.state
#else
extern SHOW_COMP_OPTION have_archive_db;
#endif
#ifdef WITH_CSV_STORAGE_ENGINE
extern handlerton tina_hton;
#define have_csv_db tina_hton.state
#else
extern SHOW_COMP_OPTION have_csv_db;
#endif
#ifdef WITH_FEDERATED_STORAGE_ENGINE
extern handlerton federated_hton;
#define have_federated_db federated_hton.state
#else
1419
extern SHOW_COMP_OPTION have_federated_db;
1420 1421 1422 1423 1424
#endif
#ifdef WITH_BLACKHOLE_STORAGE_ENGINE
extern handlerton blackhole_hton;
#define have_blackhole_db blackhole_hton.state
#else
1425
extern SHOW_COMP_OPTION have_blackhole_db;
1426 1427 1428 1429 1430
#endif
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
extern handlerton ndbcluster_hton;
#define have_ndbcluster ndbcluster_hton.state
#else
1431
extern SHOW_COMP_OPTION have_ndbcluster;
1432 1433 1434 1435 1436 1437 1438 1439
#endif
#ifdef WITH_PARTITION_STORAGE_ENGINE
extern handlerton partition_hton;
#define have_partition_db partition_hton.state
#else
extern SHOW_COMP_OPTION have_partition_db;
#endif

unknown's avatar
unknown committed
1440 1441 1442 1443
extern handlerton myisam_hton;
extern handlerton myisammrg_hton;
extern handlerton heap_hton;

1444
extern SHOW_COMP_OPTION have_row_based_replication;
unknown's avatar
unknown committed
1445
extern SHOW_COMP_OPTION have_raid, have_openssl, have_symlink;
1446
extern SHOW_COMP_OPTION have_query_cache;
1447
extern SHOW_COMP_OPTION have_geometry, have_rtree_keys;
unknown's avatar
unknown committed
1448
extern SHOW_COMP_OPTION have_crypt;
unknown's avatar
unknown committed
1449
extern SHOW_COMP_OPTION have_compress;
1450

unknown's avatar
unknown committed
1451 1452 1453 1454
#ifndef __WIN__
extern pthread_t signal_thread;
#endif

1455 1456 1457 1458
#ifdef HAVE_OPENSSL
extern struct st_VioSSLAcceptorFd * ssl_acceptor_fd;
#endif /* HAVE_OPENSSL */

1459 1460
MYSQL_LOCK *mysql_lock_tables(THD *thd, TABLE **table, uint count,
                              uint flags, bool *need_reopen);
1461 1462 1463
/* mysql_lock_tables() flags bits */
#define MYSQL_LOCK_IGNORE_GLOBAL_READ_LOCK      0x0001
#define MYSQL_LOCK_IGNORE_FLUSH                 0x0002
1464
#define MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN        0x0004
1465

unknown's avatar
unknown committed
1466 1467 1468 1469
void mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock);
void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock);
void mysql_unlock_some_tables(THD *thd, TABLE **table,uint count);
void mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table);
unknown's avatar
unknown committed
1470 1471 1472
void mysql_lock_abort(THD *thd, TABLE *table, bool upgrade_lock);
void mysql_lock_downgrade_write(THD *thd, TABLE *table,
                                thr_lock_type new_lock_type);
unknown's avatar
unknown committed
1473
bool mysql_lock_abort_for_thread(THD *thd, TABLE *table);
unknown's avatar
unknown committed
1474
MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);
1475 1476
TABLE_LIST *mysql_lock_have_duplicate(THD *thd, TABLE_LIST *needle,
                                      TABLE_LIST *haystack);
1477 1478
bool lock_global_read_lock(THD *thd);
void unlock_global_read_lock(THD *thd);
1479 1480
bool wait_if_global_read_lock(THD *thd, bool abort_on_refresh,
                              bool is_not_commit);
1481
void start_waiting_global_read_lock(THD *thd);
1482
bool make_global_read_lock_block_commit(THD *thd);
1483 1484
bool set_protect_against_global_read_lock(void);
void unset_protect_against_global_read_lock(void);
unknown's avatar
unknown committed
1485

unknown's avatar
unknown committed
1486
/* Lock based on name */
1487
int lock_and_wait_for_table_name(THD *thd, TABLE_LIST *table_list);
unknown's avatar
unknown committed
1488 1489 1490
int lock_table_name(THD *thd, TABLE_LIST *table_list);
void unlock_table_name(THD *thd, TABLE_LIST *table_list);
bool wait_for_locked_table_names(THD *thd, TABLE_LIST *table_list);
1491 1492
bool lock_table_names(THD *thd, TABLE_LIST *table_list);
void unlock_table_names(THD *thd, TABLE_LIST *table_list,
unknown's avatar
unknown committed
1493
			TABLE_LIST *last_table);
unknown's avatar
unknown committed
1494

unknown's avatar
unknown committed
1495 1496 1497 1498

/* old unireg functions */

void unireg_init(ulong options);
1499
void unireg_end(void);
unknown's avatar
unknown committed
1500
bool mysql_create_frm(THD *thd, const char *file_name,
unknown's avatar
unknown committed
1501
                      const char *db, const char *table,
1502 1503 1504
		      HA_CREATE_INFO *create_info,
		      List<create_field> &create_field,
		      uint key_count,KEY *key_info,handler *db_type);
unknown's avatar
unknown committed
1505 1506
int rea_create_table(THD *thd, const char *path,
                     const char *db, const char *table_name,
1507
                     HA_CREATE_INFO *create_info,
unknown's avatar
unknown committed
1508 1509 1510
  		     List<create_field> &create_field,
                     uint key_count,KEY *key_info,
                     handler *file);
unknown's avatar
unknown committed
1511 1512
int format_number(uint inputflag,uint max_length,my_string pos,uint length,
		  my_string *errpos);
unknown's avatar
unknown committed
1513 1514

/* table.cc */
1515
TABLE_SHARE *alloc_table_share(TABLE_LIST *table_list, char *key,
unknown's avatar
unknown committed
1516 1517 1518 1519 1520 1521 1522 1523
                               uint key_length);
void init_tmp_table_share(TABLE_SHARE *share, const char *key, uint key_length,
                          const char *table_name, const char *path);
void free_table_share(TABLE_SHARE *share);
int open_table_def(THD *thd, TABLE_SHARE *share, uint db_flags);
void open_table_error(TABLE_SHARE *share, int error, int db_errno, int errarg);
int open_table_from_share(THD *thd, TABLE_SHARE *share, const char *alias,
                          uint db_stat, uint prgflag, uint ha_open_flags,
unknown's avatar
unknown committed
1524
                          TABLE *outparam, bool is_create_table);
unknown's avatar
unknown committed
1525 1526
int readfrm(const char *name, const void** data, uint* length);
int writefrm(const char* name, const void* data, uint len);
unknown's avatar
unknown committed
1527
int closefrm(TABLE *table, bool free_share);
unknown's avatar
unknown committed
1528 1529 1530 1531 1532 1533 1534
int read_string(File file, gptr *to, uint length);
void free_blobs(TABLE *table);
int set_zone(int nr,int min_zone,int max_zone);
ulong convert_period_to_month(ulong period);
ulong convert_month_to_period(ulong month);
void get_date_from_daynr(long daynr,uint *year, uint *month,
			 uint *day);
1535
my_time_t TIME_to_timestamp(THD *thd, const TIME *t, my_bool *not_exist);
1536
bool str_to_time_with_warn(const char *str,uint length,TIME *l_time);
1537 1538
timestamp_type str_to_datetime_with_warn(const char *str, uint length,
                                         TIME *l_time, uint flags);
1539
void localtime_to_TIME(TIME *to, struct tm *from);
unknown's avatar
unknown committed
1540
void calc_time_from_sec(TIME *to, long seconds, long microseconds);
unknown's avatar
unknown committed
1541

1542
void make_truncated_value_warning(THD *thd, const char *str_val,
unknown's avatar
unknown committed
1543 1544
				  uint str_length, timestamp_type time_type,
                                  const char *field_name);
1545 1546 1547

bool date_add_interval(TIME *ltime, interval_type int_type, INTERVAL interval);

1548 1549 1550 1551 1552 1553 1554 1555 1556
extern DATE_TIME_FORMAT *date_time_format_make(timestamp_type format_type,
					       const char *format_str,
					       uint format_length);
extern DATE_TIME_FORMAT *date_time_format_copy(THD *thd,
					       DATE_TIME_FORMAT *format);
const char *get_date_time_format_str(KNOWN_DATE_TIME_FORMAT *format,
				     timestamp_type type);
extern bool make_date_time(DATE_TIME_FORMAT *format, TIME *l_time,
			   timestamp_type type, String *str);
1557 1558 1559 1560 1561 1562
void make_datetime(const DATE_TIME_FORMAT *format, const TIME *l_time,
                   String *str);
void make_date(const DATE_TIME_FORMAT *format, const TIME *l_time,
               String *str);
void make_time(const DATE_TIME_FORMAT *format, const TIME *l_time,
               String *str);
1563

unknown's avatar
unknown committed
1564 1565 1566 1567
int test_if_number(char *str,int *res,bool allow_wildcards);
void change_byte(byte *,uint,char,char);
void init_read_record(READ_RECORD *info, THD *thd, TABLE *reg_form,
		      SQL_SELECT *select,
1568
		      int use_record_cache, bool print_errors);
1569 1570
void init_read_record_idx(READ_RECORD *info, THD *thd, TABLE *table, 
                          bool print_error, uint idx);
unknown's avatar
unknown committed
1571
void end_read_record(READ_RECORD *info);
1572 1573 1574
ha_rows filesort(THD *thd, TABLE *form,struct st_sort_field *sortorder,
		 uint s_length, SQL_SELECT *select,
		 ha_rows max_rows, ha_rows *examined_rows);
unknown's avatar
unknown committed
1575
void filesort_free_buffers(TABLE *table);
unknown's avatar
unknown committed
1576
void change_double_for_sort(double nr,byte *to);
1577
double my_double_round(double value, int dec, bool truncate);
unknown's avatar
unknown committed
1578 1579
int get_quick_record(SQL_SELECT *select);
int calc_weekday(long daynr,bool sunday_first_day_of_week);
1580
uint calc_week(TIME *l_time, uint week_behaviour, uint *year);
unknown's avatar
unknown committed
1581 1582
void find_date(char *pos,uint *vek,uint flag);
TYPELIB *convert_strings_to_array_type(my_string *typelibs, my_string *end);
1583
TYPELIB *typelib(MEM_ROOT *mem_root, List<String> &strings);
unknown's avatar
unknown committed
1584 1585 1586 1587
ulong get_form_pos(File file, uchar *head, TYPELIB *save_names);
ulong make_new_entry(File file,uchar *fileinfo,TYPELIB *formnames,
		     const char *newname);
ulong next_io_size(ulong pos);
1588
void append_unescaped(String *res, const char *pos, uint length);
unknown's avatar
unknown committed
1589 1590
int create_frm(THD *thd, const char *name, const char *db, const char *table,
               uint reclength, uchar *fileinfo,
unknown's avatar
unknown committed
1591 1592 1593
	       HA_CREATE_INFO *create_info, uint keys);
void update_create_info_from_table(HA_CREATE_INFO *info, TABLE *form);
int rename_file_ext(const char * from,const char * to,const char * ext);
1594
bool check_db_name(char *db);
unknown's avatar
unknown committed
1595 1596
bool check_column_name(const char *name);
bool check_table_name(const char *name, uint length);
1597
char *get_field(MEM_ROOT *mem, Field *field);
unknown's avatar
unknown committed
1598
bool get_field(MEM_ROOT *mem, Field *field, class String *res);
1599
int wild_case_compare(CHARSET_INFO *cs, const char *str,const char *wildstr);
1600 1601 1602 1603
char *fn_rext(char *name);

/* Conversion functions */
uint strconvert(CHARSET_INFO *from_cs, const char *from,
1604 1605 1606
                CHARSET_INFO *to_cs, char *to, uint to_length, uint *errors);
uint filename_to_tablename(const char *from, char *to, uint to_length);
uint tablename_to_filename(const char *from, char *to, uint to_length);
1607 1608
uint build_table_filename(char *buff, size_t bufflen, const char *db,
                          const char *table, const char *ext);
unknown's avatar
unknown committed
1609 1610 1611 1612 1613 1614 1615 1616
/* from hostname.cc */
struct in_addr;
my_string ip_to_hostname(struct in_addr *in,uint *errors);
void inc_host_errors(struct in_addr *in);
void reset_host_errors(struct in_addr *in);
bool hostname_cache_init();
void hostname_cache_free();
void hostname_cache_refresh(void);
1617

unknown's avatar
unknown committed
1618
/* sql_cache.cc */
unknown's avatar
unknown committed
1619 1620 1621 1622
extern bool sql_cache_init();
extern void sql_cache_free();
extern int sql_cache_hit(THD *thd, char *inBuf, uint length);

1623
/* item_func.cc */
1624 1625
Item *get_system_var(THD *thd, enum_var_type var_type, LEX_STRING name,
		     LEX_STRING component);
1626 1627
int get_var_with_binlog(THD *thd, enum_sql_command sql_command,
                        LEX_STRING &name, user_var_entry **out_entry);
unknown's avatar
unknown committed
1628 1629
/* log.cc */
bool flush_error_log(void);
unknown's avatar
unknown committed
1630

1631 1632 1633 1634
/* sql_list.cc */
void free_list(I_List <i_string_pair> *list);
void free_list(I_List <i_string> *list);

1635 1636 1637 1638 1639 1640 1641 1642
/* sql_yacc.cc */
extern int yyparse(void *thd);

/* frm_crypt.cc */
#ifdef HAVE_CRYPTED_FRM
SQL_CRYPT *get_crypt_for_frm(void);
#endif

unknown's avatar
VIEW  
unknown committed
1643 1644
#include "sql_view.h"

unknown's avatar
unknown committed
1645 1646
/* Some inline functions for more speed */

unknown's avatar
unknown committed
1647
inline bool add_item_to_list(THD *thd, Item *item)
unknown's avatar
unknown committed
1648
{
unknown's avatar
unknown committed
1649
  return thd->lex->current_select->add_item_to_list(thd, item);
unknown's avatar
unknown committed
1650
}
unknown's avatar
unknown committed
1651 1652

inline bool add_value_to_list(THD *thd, Item *value)
unknown's avatar
unknown committed
1653
{
unknown's avatar
unknown committed
1654
  return thd->lex->value_list.push_back(value);
unknown's avatar
unknown committed
1655
}
unknown's avatar
unknown committed
1656 1657

inline bool add_order_to_list(THD *thd, Item *item, bool asc)
unknown's avatar
unknown committed
1658
{
unknown's avatar
unknown committed
1659
  return thd->lex->current_select->add_order_to_list(thd, item, asc);
unknown's avatar
unknown committed
1660
}
unknown's avatar
unknown committed
1661 1662

inline bool add_group_to_list(THD *thd, Item *item, bool asc)
unknown's avatar
unknown committed
1663
{
unknown's avatar
unknown committed
1664
  return thd->lex->current_select->add_group_to_list(thd, item, asc);
unknown's avatar
unknown committed
1665
}
unknown's avatar
unknown committed
1666

unknown's avatar
unknown committed
1667 1668 1669
inline void mark_as_null_row(TABLE *table)
{
  table->null_row=1;
1670
  table->status|=STATUS_NULL_ROW;
1671
  bfill(table->null_flags,table->s->null_bytes,255);
unknown's avatar
unknown committed
1672
}
unknown's avatar
unknown committed
1673

1674 1675 1676
inline void table_case_convert(char * name, uint length)
{
  if (lower_case_table_names)
1677 1678
    files_charset_info->cset->casedn(files_charset_info,
                                     name, length, name, length);
unknown's avatar
unknown committed
1679 1680
}

unknown's avatar
unknown committed
1681 1682 1683 1684
inline const char *table_case_name(HA_CREATE_INFO *info, const char *name)
{
  return ((lower_case_table_names == 2 && info->alias) ? info->alias : name);
}
unknown's avatar
unknown committed
1685

unknown's avatar
unknown committed
1686 1687 1688 1689 1690 1691 1692 1693
inline ulong sql_rnd_with_mutex()
{
  pthread_mutex_lock(&LOCK_thread_count);
  ulong tmp=(ulong) (my_rnd(&sql_rand) * 0xffffffff); /* make all bits random */
  pthread_mutex_unlock(&LOCK_thread_count);
  return tmp;
}

unknown's avatar
unknown committed
1694 1695 1696 1697 1698 1699
Comp_creator *comp_eq_creator(bool invert);
Comp_creator *comp_ge_creator(bool invert);
Comp_creator *comp_gt_creator(bool invert);
Comp_creator *comp_le_creator(bool invert);
Comp_creator *comp_lt_creator(bool invert);
Comp_creator *comp_ne_creator(bool invert);
unknown's avatar
unknown committed
1700

unknown's avatar
unknown committed
1701 1702 1703 1704 1705
Item * all_any_subquery_creator(Item *left_expr,
				chooser_compare_func_creator cmp,
				bool all,
				SELECT_LEX *select_lex);

unknown's avatar
unknown committed
1706 1707 1708 1709 1710 1711 1712 1713 1714
/*
  clean/setup table fields and map

  SYNOPSYS
    setup_table_map()
    table - TABLE structure pointer (which should be setup)
    table_list TABLE_LIST structure pointer (owner of TABLE)
    tablenr - table number
*/
unknown's avatar
unknown committed
1715

unknown's avatar
unknown committed
1716 1717 1718 1719
inline void setup_table_map(TABLE *table, TABLE_LIST *table_list, uint tablenr)
{
  table->used_fields= 0;
  table->const_table= 0;
unknown's avatar
unknown committed
1720
  table->null_row= 0;
unknown's avatar
unknown committed
1721
  table->status= STATUS_NO_RECORD;
1722
  table->keys_in_use_for_query= table->s->keys_in_use;
1723
  table->maybe_null= table_list->outer_join;
unknown's avatar
unknown committed
1724 1725 1726 1727 1728 1729
  TABLE_LIST *embedding= table_list->embedding;
  while (!table->maybe_null && embedding)
  {
    table->maybe_null= embedding->outer_join;
    embedding= embedding->embedding;
  }
unknown's avatar
unknown committed
1730 1731 1732 1733
  table->tablenr= tablenr;
  table->map= (table_map) 1 << tablenr;
  table->force_index= table_list->force_index;
}
1734

unknown's avatar
SCRUM  
unknown committed
1735

1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752
/*
  SYNOPSYS
    hexchar_to_int()
    convert a hex digit into number
*/

inline int hexchar_to_int(char c)
{
  if (c <= '9' && c >= '0')
    return c-'0';
  c|=32;
  if (c <= 'f' && c >= 'a')
    return c-'a'+10;
  return -1;
}


1753 1754 1755 1756 1757 1758 1759 1760
/*
  Some functions that are different in the embedded library and the normal
  server
*/

#ifndef EMBEDDED_LIBRARY
extern "C" void unireg_abort(int exit_code);
void kill_delayed_threads(void);
1761
bool check_stack_overrun(THD *thd, long margin, char *dummy);
1762 1763 1764
#else
#define unireg_abort(exit_code) DBUG_RETURN(exit_code)
inline void kill_delayed_threads(void) {}
1765
#define check_stack_overrun(A, B, C) 0
1766
#endif
unknown's avatar
unknown committed
1767

1768 1769 1770
/* Used by handlers to store things in schema tables */
bool schema_table_store_record(THD *thd, TABLE *table);

1771
#endif /* MYSQL_SERVER */
1772
#endif /* MYSQL_CLIENT */