mysql_priv.h 61.9 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 45 46 47
/* TODO convert all these three maps to Bitmap classes */
typedef ulonglong table_map;          /* Used for table bits in join */
typedef Bitmap<64> key_map;           /* Used for finding keys */
typedef ulong key_part_map;           /* Used for finding key parts */

48 49 50 51 52 53 54
/* 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++; }

55 56
/* useful constants */
extern const key_map key_map_empty;
57
extern key_map key_map_full;          /* Should be threaded as const */
58
extern const char *primary_key_name;
unknown's avatar
unknown committed
59 60

#include "mysql_com.h"
unknown's avatar
unknown committed
61
#include <violite.h>
unknown's avatar
unknown committed
62 63
#include "unireg.h"

64
void init_sql_alloc(MEM_ROOT *root, uint block_size, uint pre_alloc_size);
unknown's avatar
unknown committed
65 66 67 68 69 70
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
71 72 73 74
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);
75
void kill_one_thread(THD *thd, ulong id, bool only_kill_query);
76
bool net_request_file(NET* net, const char* fname);
unknown's avatar
unknown committed
77
char* query_table_status(THD *thd,const char *db,const char *table_name);
unknown's avatar
unknown committed
78 79 80 81 82 83

#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))

84 85
extern CHARSET_INFO *system_charset_info, *files_charset_info ;
extern CHARSET_INFO *national_charset_info, *table_alias_charset;
86

unknown's avatar
unknown committed
87
/***************************************************************************
88
  Configuration parameters
unknown's avatar
unknown committed
89 90 91
****************************************************************************/

#define ACL_CACHE_SIZE		256
92
#define MAX_PASSWORD_LENGTH	32
unknown's avatar
unknown committed
93 94 95 96 97
#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.
unknown's avatar
unknown committed
98
#define STACK_BUFF_ALLOC	256	// For stack overrun checks
unknown's avatar
unknown committed
99 100 101
#ifndef MYSQLD_NET_RETRY_COUNT
#define MYSQLD_NET_RETRY_COUNT  10	// Abort read after this many int.
#endif
102
#define TEMP_POOL_SIZE          128
103 104 105 106 107 108 109 110 111

#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
112 113 114
#define BDB_LOG_ALLOC_BLOCK_SIZE	1024
#define WARN_ALLOC_BLOCK_SIZE		2048
#define WARN_ALLOC_PREALLOC_SIZE	1024
115

116 117
/*
  The following parameters is to decide when to use an extra cache to
unknown's avatar
unknown committed
118
  optimise seeks when reading a big table in sorted order
119
*/
120
#define MIN_FILE_LENGTH_TO_USE_ROW_CACHE (10L*1024*1024)
unknown's avatar
unknown committed
121
#define MIN_ROWS_TO_USE_TABLE_CACHE	 100
122
#define MIN_ROWS_TO_USE_BULK_INSERT	 100
unknown's avatar
unknown committed
123

124 125 126 127 128
/*
  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.
*/
129
#define TIME_FOR_COMPARE   5	// 5 compares == one read
130

131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150
/*
  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)


151 152 153 154 155
/*
  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.
*/
156
#define MATCHING_ROWS_IN_OTHER_TABLE 10
unknown's avatar
unknown committed
157 158 159 160 161 162 163 164 165 166

/* 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
167 168 169
#define TIMESTAMP_MIN_YEAR (1900 + YY_PART_YEAR - 1)
#define TIMESTAMP_MAX_VALUE 2145916799
#define TIMESTAMP_MIN_VALUE 1
unknown's avatar
unknown committed
170 171 172 173 174 175 176 177 178 179 180 181
#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
182 183 184 185 186
#ifdef __NETWARE__
#define IF_NETWARE(A,B) (A)
#else
#define IF_NETWARE(A,B) (B)
#endif
187

unknown's avatar
unknown committed
188
#if defined(__WIN__) || defined(OS2)
unknown's avatar
unknown committed
189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204
#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
205
	/* Bits from testflag */
unknown's avatar
unknown committed
206 207 208 209 210 211 212 213
#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
214
#define TEST_CORE_ON_SIGNAL	256	/* Give core if signal */
unknown's avatar
unknown committed
215
#define TEST_NO_STACKTRACE	512
216
#define TEST_SIGINT		1024	/* Allow sigint on threads */
unknown's avatar
unknown committed
217 218
#define TEST_SYNCHRONIZATION    2048    /* get server to do sleep in
                                           some places */
219 220
#endif

unknown's avatar
unknown committed
221
/*
222 223
   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
224 225 226 227 228 229 230 231 232 233 234 235 236

   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.
237 238
*/

unknown's avatar
unknown committed
239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266
#define SELECT_DISTINCT         (1L << 0)       // SELECT, user
#define SELECT_STRAIGHT_JOIN    (1L << 1)       // SELECT, user
#define SELECT_DESCRIBE         (1L << 2)       // SELECT, user
#define SELECT_SMALL_RESULT     (1L << 3)       // SELECT, user
#define SELECT_BIG_RESULT       (1L << 4)       // SELECT, user
#define OPTION_FOUND_ROWS       (1L << 5)       // SELECT, user
#define OPTION_TO_QUERY_CACHE   (1L << 6)       // SELECT, user
#define SELECT_NO_JOIN_CACHE    (1L << 7)       // intern
#define OPTION_BIG_TABLES       (1L << 8)       // THD, user
#define OPTION_BIG_SELECTS      (1L << 9)       // THD, user
#define OPTION_LOG_OFF          (1L << 10)      // THD, user
#define OPTION_UPDATE_LOG       (1L << 11)      // THD, user, unused
#define TMP_TABLE_ALL_COLUMNS   (1L << 12)      // SELECT, intern
#define OPTION_WARNINGS         (1L << 13)      // THD, user
#define OPTION_AUTO_IS_NULL     (1L << 14)      // THD, user, binlog
#define OPTION_FOUND_COMMENT    (1L << 15)      // SELECT, intern, parser
#define OPTION_SAFE_UPDATES     (1L << 16)      // THD, user
#define OPTION_BUFFER_RESULT    (1L << 17)      // SELECT, user
#define OPTION_BIN_LOG          (1L << 18)      // THD, user
#define OPTION_NOT_AUTOCOMMIT   (1L << 19)      // THD, user
#define OPTION_BEGIN            (1L << 20)      // THD, intern
#define OPTION_TABLE_LOCK       (1L << 21)      // THD, intern
#define OPTION_QUICK            (1L << 22)      // SELECT (for DELETE)
#define OPTION_QUOTE_SHOW_CREATE (1L << 23)     // THD, user

/* Thr following is used to detect a conflict with DISTINCT
   in the user query has requested */
#define SELECT_ALL              (1L << 24)      // SELECT, user, parser
unknown's avatar
unknown committed
267

268
/* Set if we are updating a non-transaction safe table */
unknown's avatar
unknown committed
269
#define OPTION_STATUS_NO_TRANS_UPDATE   (1L << 25) // THD, intern
270

unknown's avatar
unknown committed
271 272
/* The following can be set when importing tables in a 'wrong order'
   to suppress foreign key checks */
unknown's avatar
unknown committed
273
#define OPTION_NO_FOREIGN_KEY_CHECKS    (1L << 26) // THD, user, binlog
unknown's avatar
unknown committed
274 275
/* The following speeds up inserts to InnoDB tables by suppressing unique
   key checks in some cases */
unknown's avatar
unknown committed
276 277 278
#define OPTION_RELAXED_UNIQUE_CHECKS    (1L << 27) // THD, user, binlog
#define SELECT_NO_UNLOCK                (1L << 28) // SELECT, intern
#define OPTION_SCHEMA_TABLE             (1L << 29) // SELECT, intern
279
/* Flag set if setup_tables already done */
unknown's avatar
unknown committed
280 281
#define OPTION_SETUP_TABLES_DONE        (1L << 30) // intern
/* If not set then the thread will ignore all warnings with level notes. */
282
#define OPTION_SQL_NOTES                (1UL << 31) // THD, user
283 284 285 286 287
/* 
  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)
288

unknown's avatar
unknown committed
289 290
/*
  Maximum length of time zone name that we support
291 292 293 294
  (Time zone name is char(64) in db). mysqlbinlog needs it.
*/
#define MAX_TIME_ZONE_NAME_LENGTH 72

295 296 297
/* The rest of the file is included in the server only */
#ifndef MYSQL_CLIENT

298
/* Bits for different SQL modes modes (including ANSI mode) */
unknown's avatar
unknown committed
299 300 301
#define MODE_REAL_AS_FLOAT              1
#define MODE_PIPES_AS_CONCAT            2
#define MODE_ANSI_QUOTES                4
302
#define MODE_IGNORE_SPACE		8
303
#define MODE_NOT_USED			16
304 305
#define MODE_ONLY_FULL_GROUP_BY		32
#define MODE_NO_UNSIGNED_SUBTRACTION	64
306
#define MODE_NO_DIR_IN_CREATE		128
unknown's avatar
unknown committed
307 308 309 310
#define MODE_POSTGRESQL			256
#define MODE_ORACLE			512
#define MODE_MSSQL			1024
#define MODE_DB2			2048
311
#define MODE_MAXDB			4096
unknown's avatar
unknown committed
312
#define MODE_NO_KEY_OPTIONS             8192
unknown's avatar
unknown committed
313 314 315 316 317 318 319 320 321 322 323 324 325 326
#define MODE_NO_TABLE_OPTIONS           16384 
#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)
327
#define MODE_NO_AUTO_CREATE_USER	(MODE_TRADITIONAL*2)
328
#define MODE_HIGH_NOT_PRECEDENCE	(MODE_NO_AUTO_CREATE_USER*2)
329
#define MODE_NO_ENGINE_SUBSTITUTION     (MODE_HIGH_NOT_PRECEDENCE*2)
330 331 332 333 334
/*
  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).
335 336 337 338

  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
339
*/
340

unknown's avatar
unknown committed
341 342
#define RAID_BLOCK_SIZE 1024

unknown's avatar
unknown committed
343 344
#define MY_CHARSET_BIN_MB_MAXLEN 1

345 346 347
// uncachable cause
#define UNCACHEABLE_DEPENDENT   1
#define UNCACHEABLE_RAND        2
348 349 350
#define UNCACHEABLE_SIDEEFFECT	4
// forcing to save JOIN for explain
#define UNCACHEABLE_EXPLAIN     8
351 352
/* Don't evaluate subqueries in prepare even if they're not correlated */
#define UNCACHEABLE_PREPARE    16
353

354
#ifdef EXTRA_DEBUG
355 356 357 358 359 360 361
/*
  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
*/
362 363 364 365 366
#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)
367
#endif /* EXTRA_DEBUG */
368

unknown's avatar
unknown committed
369 370 371 372
/* BINLOG_DUMP options */

#define BINLOG_DUMP_NON_BLOCK   1

unknown's avatar
unknown committed
373 374 375 376
/* sql_show.cc:show_log_files() */
#define SHOW_LOG_STATUS_FREE "FREE"
#define SHOW_LOG_STATUS_INUSE "IN USE"

377 378 379 380
struct st_table_list;
class String;
void view_store_options(THD *thd, st_table_list *table, String *buff);

381 382 383
/* Options to add_table_to_list() */
#define TL_OPTION_UPDATING	1
#define TL_OPTION_FORCE_INDEX	2
unknown's avatar
unknown committed
384
#define TL_OPTION_IGNORE_LEAVES 4
385

unknown's avatar
unknown committed
386 387 388 389 390 391 392
/* Some portable defines */

#define portable_sizeof_char_ptr 8

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

393 394 395 396 397
/* Flags for calc_week() function.  */
#define WEEK_MONDAY_FIRST    1
#define WEEK_YEAR            2
#define WEEK_FIRST_WEEKDAY   4

unknown's avatar
unknown committed
398 399
#define STRING_BUFFER_USUAL_SIZE 80

unknown's avatar
unknown committed
400 401 402 403 404 405 406
/*
  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

407 408 409 410
enum enum_parsing_place
{
  NO_MATTER,
  IN_HAVING,
unknown's avatar
unknown committed
411 412
  SELECT_LIST,
  IN_WHERE
413 414
};

unknown's avatar
unknown committed
415 416 417 418 419 420 421 422 423
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
424 425 426 427 428 429 430 431 432 433 434 435 436 437

  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;
  }
438 439 440 441 442 443 444 445 446 447 448
  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;
  }
449 450 451 452 453 454 455 456 457
  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
458 459 460 461 462 463 464 465 466 467
} 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()

468 469 470 471 472
/*
  External variables
*/
extern ulong server_id, concurrency;

unknown's avatar
unknown committed
473

unknown's avatar
unknown committed
474 475 476
typedef my_bool (*qc_engine_callback)(THD *thd, char *table_key,
                                      uint key_length,
                                      ulonglong *engine_data);
unknown's avatar
unknown committed
477 478 479
#include "sql_string.h"
#include "sql_list.h"
#include "sql_map.h"
unknown's avatar
unknown committed
480
#include "my_decimal.h"
unknown's avatar
unknown committed
481
#include "handler.h"
unknown's avatar
unknown committed
482
#include "parse_file.h"
unknown's avatar
unknown committed
483
#include "table.h"
484
#include "sql_error.h"
unknown's avatar
unknown committed
485
#include "field.h"				/* Field definitions */
486
#include "protocol.h"
487
#include "sql_plugin.h"
unknown's avatar
unknown committed
488
#include "sql_udf.h"
489
class user_var_entry;
490
class Security_context;
491 492
enum enum_var_type
{
unknown's avatar
unknown committed
493
  OPT_DEFAULT= 0, OPT_SESSION, OPT_GLOBAL
494 495
};
class sys_var;
unknown's avatar
unknown committed
496
#include "item.h"
unknown's avatar
unknown committed
497
extern my_decimal decimal_zero;
unknown's avatar
unknown committed
498
typedef Comp_creator* (*chooser_compare_func_creator)(bool invert);
499 500 501
/* sql_parse.cc */
void free_items(Item *item);
void cleanup_items(Item *item);
502
class THD;
503
void close_thread_tables(THD *thd, bool locked=0, bool skip_derived=0);
504
bool check_one_table_access(THD *thd, ulong privilege,
unknown's avatar
unknown committed
505
			   TABLE_LIST *tables);
506 507
bool check_routine_access(THD *thd,ulong want_access,char *db,char *name,
			  bool is_proc, bool no_errors);
508
bool check_some_access(THD *thd, ulong want_access, TABLE_LIST *table);
509 510
bool check_merge_table_access(THD *thd, char *db,
			      TABLE_LIST *table_list);
511
bool check_some_routine_access(THD *thd, const char *db, const char *name, bool is_proc);
unknown's avatar
unknown committed
512
bool multi_update_precheck(THD *thd, TABLE_LIST *tables);
513
bool multi_delete_precheck(THD *thd, TABLE_LIST *tables);
unknown's avatar
unknown committed
514 515 516 517 518
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
519
bool insert_precheck(THD *thd, TABLE_LIST *tables);
unknown's avatar
unknown committed
520 521
bool create_table_precheck(THD *thd, TABLE_LIST *tables,
                           TABLE_LIST *create_table);
522
bool default_view_definer(Security_context *sctx, st_lex_user *definer);
523

524 525 526 527 528 529 530 531

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

int end_trans(THD *thd, enum enum_mysql_completiontype completion);

unknown's avatar
unknown committed
532
Item *negate_expression(THD *thd, Item *expr);
unknown's avatar
unknown committed
533
#include "sql_class.h"
534 535
#include "sql_acl.h"
#include "tztime.h"
unknown's avatar
unknown committed
536
#include "opt_range.h"
unknown's avatar
unknown committed
537 538

#ifdef HAVE_QUERY_CACHE
539 540 541
struct Query_cache_query_flags
{
  unsigned int client_long_flag:1;
542
  unsigned int client_protocol_41:1;
543
  unsigned int more_results_exists:1;
544
  unsigned int pkt_nr;
unknown's avatar
unknown committed
545 546 547
  uint character_set_client_num;
  uint character_set_results_num;
  uint collation_connection_num;
548
  ha_rows limit;
549
  Time_zone *time_zone;
550 551 552
  ulong sql_mode;
  ulong max_sort_length;
  ulong group_concat_max_len;
553 554
};
#define QUERY_CACHE_FLAGS_SIZE sizeof(Query_cache_query_flags)
unknown's avatar
unknown committed
555
#include "sql_cache.h"
unknown's avatar
unknown committed
556 557 558
#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)
559
#define query_cache_init() query_cache.init()
unknown's avatar
unknown committed
560
#define query_cache_resize(A) query_cache.resize(A)
561
#define query_cache_set_min_res_unit(A) query_cache.set_min_res_unit(A)
unknown's avatar
unknown committed
562 563 564 565 566 567 568
#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
569
#define QUERY_CACHE_FLAGS_SIZE 0
unknown's avatar
unknown committed
570 571 572
#define query_cache_store_query(A, B)
#define query_cache_destroy()
#define query_cache_result_size_limit(A)
573
#define query_cache_init()
unknown's avatar
unknown committed
574
#define query_cache_resize(A)
575
#define query_cache_set_min_res_unit(A)
unknown's avatar
unknown committed
576 577 578 579 580 581 582 583 584
#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
585

unknown's avatar
unknown committed
586 587 588
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);
589
void mysql_binlog_send(THD* thd, char* log_ident, my_off_t pos, ushort flags);
unknown's avatar
unknown committed
590 591
bool mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists,
                    my_bool drop_temporary);
592
int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
unknown's avatar
VIEW  
unknown committed
593
			 bool drop_temporary, bool drop_view, bool log_query);
unknown's avatar
unknown committed
594
int mysql_rm_table_part2_with_lock(THD *thd, TABLE_LIST *tables,
595
				   bool if_exists, bool drop_temporary,
unknown's avatar
unknown committed
596
				   bool log_query);
unknown's avatar
unknown committed
597 598
int quick_rm_table(enum db_type base,const char *db,
		   const char *table_name);
599
void close_cached_table(THD *thd, TABLE *table);
unknown's avatar
unknown committed
600
bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list);
601
bool mysql_change_db(THD *thd,const char *name,bool no_access_check);
unknown's avatar
unknown committed
602
void mysql_parse(THD *thd,char *inBuf,uint length);
603
bool mysql_test_parse_for_slave(THD *thd,char *inBuf,uint length);
604
bool is_update_query(enum enum_sql_command command);
605
bool alloc_query(THD *thd, const char *packet, uint packet_length);
606
void mysql_init_select(LEX *lex);
607
void mysql_reset_thd_for_next_command(THD *thd);
unknown's avatar
unknown committed
608
void mysql_init_query(THD *thd, uchar *buf, uint length);
unknown's avatar
unknown committed
609
bool mysql_new_select(LEX *lex, bool move_down);
610
void create_select_for_variable(const char *var_name);
unknown's avatar
unknown committed
611
void mysql_init_multi_delete(LEX *lex);
612
bool multi_delete_set_locks_and_link_aux_tables(LEX *lex);
unknown's avatar
unknown committed
613
void init_max_user_conn(void);
614
void init_update_queries(void);
unknown's avatar
unknown committed
615
void free_max_user_conn(void);
616 617
pthread_handler_t handle_one_connection(void *arg);
pthread_handler_t handle_bootstrap(void *arg);
unknown's avatar
unknown committed
618 619
void end_thread(THD *thd,bool put_in_cache);
void flush_thread_cache();
unknown's avatar
unknown committed
620
bool mysql_execute_command(THD *thd);
unknown's avatar
unknown committed
621
bool do_command(THD *thd);
622 623
bool dispatch_command(enum enum_server_command command, THD *thd,
		      char* packet, uint packet_length);
unknown's avatar
unknown committed
624
void log_slow_statement(THD *thd);
625
bool check_dup(const char *db, const char *name, TABLE_LIST *tables);
626

627
bool table_cache_init(void);
unknown's avatar
unknown committed
628 629 630
void table_cache_free(void);
uint cached_tables(void);
void kill_mysql(void);
631
void close_connection(THD *thd, uint errcode, bool lock);
unknown's avatar
unknown committed
632 633 634
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,
635
		  bool no_grant, bool no_errors, bool schema_db);
unknown's avatar
unknown committed
636
bool check_table_access(THD *thd, ulong want_access, TABLE_LIST *tables,
unknown's avatar
unknown committed
637
			bool no_errors);
unknown's avatar
unknown committed
638
bool check_global_access(THD *thd, ulong want_access);
unknown's avatar
unknown committed
639

unknown's avatar
unknown committed
640 641 642 643
/*
  Support routine for SQL parser on partitioning syntax
*/
my_bool is_partition_management(LEX *lex);
644 645 646 647 648 649 650 651 652 653 654 655
/*
  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
656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671
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
672 673
int reassign_keycache_tables(THD* thd, KEY_CACHE *src_cache,
                             KEY_CACHE *dst_cache);
unknown's avatar
unknown committed
674

675 676
bool mysql_xa_recover(THD *thd);

677
bool check_simple_select();
unknown's avatar
unknown committed
678

unknown's avatar
unknown committed
679
SORT_FIELD * make_unireg_sortorder(ORDER *order, uint *length);
680 681 682 683
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
684
		bool *hidden_group_fields);
unknown's avatar
unknown committed
685

686 687
bool handle_select(THD *thd, LEX *lex, select_result *result,
                   ulong setup_tables_done_option);
unknown's avatar
unknown committed
688 689 690 691 692 693
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
694
void free_underlaid_joins(THD *thd, SELECT_LEX *select);
unknown's avatar
unknown committed
695 696
bool mysql_explain_union(THD *thd, SELECT_LEX_UNIT *unit,
                         select_result *result);
unknown's avatar
unknown committed
697 698
int mysql_explain_select(THD *thd, SELECT_LEX *sl, char const *type,
			 select_result *result);
unknown's avatar
unknown committed
699
bool mysql_union(THD *thd, LEX *lex, select_result *result,
700
                 SELECT_LEX_UNIT *unit, ulong setup_tables_done_option);
701 702 703 704 705
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
706
Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
unknown's avatar
unknown committed
707
			Item ***copy_func, Field **from_field,
unknown's avatar
unknown committed
708
			bool group, bool modify_item,
unknown's avatar
unknown committed
709
			bool table_cant_handle_bit_fields,
unknown's avatar
unknown committed
710
                        uint convert_blob_length);
711
void sp_prepare_create_field(THD *thd, create_field *sql_field);
unknown's avatar
unknown committed
712
int prepare_create_field(create_field *sql_field, 
unknown's avatar
unknown committed
713 714
			 uint *blob_columns, 
			 int *timestamps, int *timestamps_with_niladic,
unknown's avatar
unknown committed
715
			 uint table_flags);
unknown's avatar
unknown committed
716 717 718 719
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
720

unknown's avatar
unknown committed
721
TABLE *create_table_from_items(THD *thd, HA_CREATE_INFO *create_info,
unknown's avatar
VIEW  
unknown committed
722
			       TABLE_LIST *create_table,
unknown's avatar
unknown committed
723 724 725
			       List<create_field> *extra_fields,
			       List<Key> *keys,
			       List<Item> *items,
unknown's avatar
unknown committed
726 727 728 729 730 731 732 733
                               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,
734
                       bool ignore,
unknown's avatar
unknown committed
735
                       ALTER_INFO *alter_info, bool do_send_ok);
unknown's avatar
unknown committed
736 737 738 739
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
740 741 742 743 744
bool mysql_rename_table(enum db_type base,
			const char *old_db,
			const char * old_name,
			const char *new_db,
			const char * new_name);
unknown's avatar
unknown committed
745 746 747
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
748 749
bool mysql_prepare_update(THD *thd, TABLE_LIST *table_list,
                          Item **conds, uint order_num, ORDER *order);
unknown's avatar
unknown committed
750 751 752
int mysql_update(THD *thd,TABLE_LIST *tables,List<Item> &fields,
		 List<Item> &values,COND *conds,
		 uint order_num, ORDER *order, ha_rows limit,
753
		 enum enum_duplicates handle_duplicates, bool ignore);
unknown's avatar
unknown committed
754 755
bool mysql_multi_update(THD *thd, TABLE_LIST *table_list,
                        List<Item> *fields, List<Item> *values,
756
                        COND *conds, ulonglong options,
757
                        enum enum_duplicates handle_duplicates, bool ignore,
unknown's avatar
unknown committed
758 759 760 761
                        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
762 763
                          List<Item> &update_values, enum_duplicates duplic,
                          COND **where, bool select_insert);
unknown's avatar
unknown committed
764 765
bool mysql_insert(THD *thd,TABLE_LIST *table,List<Item> &fields,
                  List<List_item> &values, List<Item> &update_fields,
766 767
                  List<Item> &update_values, enum_duplicates flag,
                  bool ignore);
768 769
int check_that_all_fields_are_given_values(THD *thd, TABLE *entry,
                                           TABLE_LIST *table_list);
unknown's avatar
unknown committed
770
bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds);
unknown's avatar
unknown committed
771 772 773
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
774 775
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);
unknown's avatar
unknown committed
776
TABLE *open_ltable(THD *thd, TABLE_LIST *table_list, thr_lock_type update);
unknown's avatar
VIEW  
unknown committed
777
TABLE *open_table(THD *thd, TABLE_LIST *table_list, MEM_ROOT* mem,
778
		  bool *refresh, uint flags);
779
bool reopen_name_locked_table(THD* thd, TABLE_LIST* table);
unknown's avatar
unknown committed
780
TABLE *find_locked_table(THD *thd, const char *db,const char *table_name);
unknown's avatar
unknown committed
781
bool reopen_table(TABLE *table,bool locked);
unknown's avatar
unknown committed
782
bool reopen_tables(THD *thd,bool get_locks,bool in_refresh);
unknown's avatar
unknown committed
783 784
void close_old_data_files(THD *thd, TABLE *table, bool abort_locks,
			  bool send_refresh);
unknown's avatar
unknown committed
785 786
bool close_data_tables(THD *thd,const char *db, const char *table_name);
bool wait_for_tables(THD *thd);
unknown's avatar
unknown committed
787
bool table_is_used(TABLE *table, bool wait_for_name_lock);
unknown's avatar
unknown committed
788 789
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);
790 791
void execute_init_command(THD *thd, sys_var_str *init_command_var,
			  rw_lock_t *var_mutex);
unknown's avatar
unknown committed
792 793
extern Field *not_found_field;
extern Field *view_ref_found;
794 795 796 797

enum find_item_error_report_type {REPORT_ALL_ERRORS, REPORT_EXCEPT_NOT_FOUND,
				  IGNORE_ERRORS, REPORT_EXCEPT_NON_UNIQUE,
                                  IGNORE_EXCEPT_NON_UNIQUE};
798
Field *
unknown's avatar
unknown committed
799 800 801 802
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);
803
Field *
unknown's avatar
unknown committed
804 805 806 807 808 809 810 811
find_field_in_table_ref(THD *thd, TABLE_LIST *table_list,
                        const char *name, const char *item_name,
                        const char *table_name, const char *db_name,
                        uint length, Item **ref,
                        bool check_grants_table, bool check_grants_view,
                        bool allow_rowid,
                        uint *cached_field_index_ptr,
                        bool register_tree_change, TABLE_LIST **actual_table);
812
Field *
unknown's avatar
unknown committed
813 814
find_field_in_table(THD *thd, TABLE *table, const char *name,
                    uint length, bool check_grants, bool allow_rowid,
815 816
                    uint *cached_field_index_ptr,
                    Security_context *sctx);
817 818 819
Field *
find_field_in_table_sef(TABLE *table, const char *name);

unknown's avatar
unknown committed
820
#ifdef HAVE_OPENSSL
821
#include <openssl/des.h>
822 823
struct st_des_keyblock
{
unknown's avatar
unknown committed
824
  DES_cblock key1, key2, key3;
unknown's avatar
unknown committed
825 826 827
};
struct st_des_keyschedule
{
828
  DES_key_schedule ks1, ks2, ks3;
unknown's avatar
unknown committed
829
};
unknown's avatar
unknown committed
830
extern char *des_key_file;
unknown's avatar
unknown committed
831
extern struct st_des_keyschedule des_keyschedule[10];
unknown's avatar
unknown committed
832
extern uint des_default_key;
unknown's avatar
unknown committed
833 834
extern pthread_mutex_t LOCK_des_key_file;
bool load_des_key_file(const char *file_name);
unknown's avatar
unknown committed
835
#endif /* HAVE_OPENSSL */
unknown's avatar
unknown committed
836

unknown's avatar
unknown committed
837
/* sql_do.cc */
unknown's avatar
unknown committed
838
bool mysql_do(THD *thd, List<Item> &values);
unknown's avatar
unknown committed
839

840 841 842
/* sql_analyse.h */
bool append_escaped(String *to_str, String *from_str);

unknown's avatar
unknown committed
843
/* sql_show.cc */
unknown's avatar
unknown committed
844 845
bool mysqld_show_open_tables(THD *thd,const char *wild);
bool mysqld_show_logs(THD *thd);
846 847
void append_identifier(THD *thd, String *packet, const char *name,
		       uint length);
848
int get_quote_char_for_identifier(THD *thd, const char *name, uint length);
unknown's avatar
unknown committed
849
void mysqld_list_fields(THD *thd,TABLE_LIST *table, const char *wild);
unknown's avatar
unknown committed
850
int mysqld_dump_create_info(THD *thd, TABLE_LIST *table_list, int fd);
unknown's avatar
unknown committed
851 852
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
853 854 855 856

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);
857 858
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
859
bool mysqld_show_storage_engines(THD *thd);
unknown's avatar
unknown committed
860
bool mysqld_show_authors(THD *thd);
unknown's avatar
unknown committed
861 862 863
bool mysqld_show_privileges(THD *thd);
bool mysqld_show_column_types(THD *thd);
bool mysqld_help (THD *thd, const char *text);
864
void calc_sum_of_all_status(STATUS_VAR *to);
unknown's avatar
unknown committed
865

866 867 868 869
/* information schema */
extern LEX_STRING information_schema_name;
LEX_STRING *make_lex_string(THD *thd, LEX_STRING *lex_str,
                            const char* str, uint length,
unknown's avatar
unknown committed
870
                            bool allocate_lex_string);
871 872 873 874 875 876 877 878 879 880 881
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
882
bool get_schema_tables_result(JOIN *join);
883 884
#define is_schema_db(X) \
  !my_strcasecmp(system_charset_info, information_schema_name.str, (X))
885

unknown's avatar
unknown committed
886
/* sql_prepare.cc */
887 888

void mysql_stmt_prepare(THD *thd, const char *packet, uint packet_length);
889
void mysql_stmt_execute(THD *thd, char *packet, uint packet_length);
890
void mysql_stmt_close(THD *thd, char *packet);
891 892 893 894
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);
895
void mysql_stmt_reset(THD *thd, char *packet);
896
void mysql_stmt_get_longdata(THD *thd, char *pos, ulong packet_length);
897
void reinit_stmt_before_use(THD *thd, LEX *lex);
unknown's avatar
unknown committed
898

899
/* sql_handler.cc */
unknown's avatar
unknown committed
900
bool mysql_ha_open(THD *thd, TABLE_LIST *tables, bool reopen);
unknown's avatar
merge  
unknown committed
901
bool mysql_ha_close(THD *thd, TABLE_LIST *tables);
unknown's avatar
unknown committed
902 903
bool mysql_ha_read(THD *, TABLE_LIST *,enum enum_ha_read_modes,char *,
                   List<Item> *,enum ha_rkey_function,Item *,ha_rows,ha_rows);
904
int mysql_ha_flush(THD *thd, TABLE_LIST *tables, uint mode_flags);
905 906 907 908
/* 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
909

unknown's avatar
unknown committed
910
/* sql_base.cc */
unknown's avatar
unknown committed
911
#define TMP_TABLE_KEY_EXTRA 8
unknown's avatar
unknown committed
912
void set_item_name(Item *item,char *pos,uint length);
unknown's avatar
unknown committed
913
bool add_field_to_list(THD *thd, char *field_name, enum enum_field_types type,
unknown's avatar
unknown committed
914
		       char *length, char *decimal,
915
		       uint type_modifier,
916
		       Item *default_value, Item *on_update_value,
unknown's avatar
unknown committed
917
		       LEX_STRING *comment,
918 919
		       char *change, List<String> *interval_list,
		       CHARSET_INFO *cs,
unknown's avatar
unknown committed
920
		       uint uint_geom_type);
unknown's avatar
unknown committed
921 922 923 924 925 926 927
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
928
void store_position_for_column(const char *name);
unknown's avatar
unknown committed
929
bool add_to_list(THD *thd, SQL_LIST &list,Item *group,bool asc);
unknown's avatar
unknown committed
930 931
Name_resolution_context *make_join_on_context(THD *thd, TABLE_LIST *left_op,
                                              TABLE_LIST *right_op);
unknown's avatar
unknown committed
932
void add_join_on(TABLE_LIST *b,Item *expr);
unknown's avatar
unknown committed
933
void add_join_natural(TABLE_LIST *a,TABLE_LIST *b,List<String> *using_fields);
unknown's avatar
unknown committed
934
bool add_proc_to_list(THD *thd, Item *item);
unknown's avatar
unknown committed
935
TABLE *unlink_open_table(THD *thd,TABLE *list,TABLE *find);
936 937 938
void update_non_unique_table_error(TABLE_LIST *update,
                                   const char *operation,
                                   TABLE_LIST *duplicate);
unknown's avatar
unknown committed
939 940

SQL_SELECT *make_select(TABLE *head, table_map const_tables,
unknown's avatar
unknown committed
941 942
			table_map read_tables, COND *conds,
                        bool allow_null_cond,  int *error);
unknown's avatar
unknown committed
943
extern Item **not_found_item;
944
Item ** find_item_in_list(Item *item, List<Item> &items, uint *counter,
945 946
                          find_item_error_report_type report_error,
                          bool *unaliased);
947
bool get_key_map_from_key_list(key_map *map, TABLE *table,
948
                               List<String> *index_list);
949
bool insert_fields(THD *thd, Name_resolution_context *context,
950
		   const char *db_name, const char *table_name,
951 952
                   List_iterator<Item> *it, bool any_privileges);
bool setup_tables(THD *thd, Name_resolution_context *context,
unknown's avatar
unknown committed
953 954
                  List<TABLE_LIST> *from_clause, TABLE_LIST *tables,
                  Item **conds, TABLE_LIST **leaves, bool select_insert);
955 956
int setup_wild(THD *thd, TABLE_LIST *tables, List<Item> &fields,
	       List<Item> *sum_func_list, uint wild_num);
957
bool setup_fields(THD *thd, Item** ref_pointer_array,
958
                  List<Item> &item, ulong set_query_id,
unknown's avatar
unknown committed
959
                  List<Item> *sum_func_list, bool allow_sum_func);
960
inline bool setup_fields_with_no_wrap(THD *thd, Item **ref_pointer_array,
unknown's avatar
unknown committed
961
                                     List<Item> &item, ulong set_query_id,
962 963 964 965 966 967 968 969 970 971
                                     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;
}
972 973
int setup_conds(THD *thd, TABLE_LIST *tables, TABLE_LIST *leaves,
		COND **conds);
974 975
int setup_ftfuncs(SELECT_LEX* select);
int init_ftfuncs(THD *thd, SELECT_LEX* select, bool no_order);
unknown's avatar
unknown committed
976
void wait_for_refresh(THD *thd);
977
int open_tables(THD *thd, TABLE_LIST **tables, uint *counter, uint flags);
978
int simple_open_n_lock_tables(THD *thd,TABLE_LIST *tables);
unknown's avatar
unknown committed
979
bool open_and_lock_tables(THD *thd,TABLE_LIST *tables);
980
bool open_normal_and_derived_tables(THD *thd, TABLE_LIST *tables, uint flags);
981
int lock_tables(THD *thd, TABLE_LIST *tables, uint counter, bool *need_reopen);
unknown's avatar
unknown committed
982 983 984 985 986
TABLE *open_temporary_table(THD *thd, const char *path, const char *db,
			    const char *table_name, bool link_in_list);
bool rm_temporary_table(enum db_type base, char *path);
void free_io_cache(TABLE *entry);
void intern_close_table(TABLE *entry);
987
bool close_thread_table(THD *thd, TABLE **table_ptr);
unknown's avatar
unknown committed
988
void close_temporary_tables(THD *thd);
989
void close_tables_for_reopen(THD *thd, TABLE_LIST *tables);
990 991 992 993
TABLE_LIST *find_table_in_list(TABLE_LIST *table,
                               uint offset_to_list,
                               const char *db_name,
                               const char *table_name);
unknown's avatar
unknown committed
994
TABLE_LIST *unique_table(TABLE_LIST *table, TABLE_LIST *table_list);
unknown's avatar
unknown committed
995 996
TABLE **find_temporary_table(THD *thd, const char *db, const char *table_name);
bool close_temporary_table(THD *thd, const char *db, const char *table_name);
unknown's avatar
unknown committed
997
void close_temporary(TABLE *table, bool delete_table);
998
bool rename_temporary_table(THD* thd, TABLE *table, const char *new_db,
unknown's avatar
unknown committed
999
			    const char *table_name);
1000
void remove_db_from_cache(const char *db);
unknown's avatar
unknown committed
1001
void flush_tables();
1002
bool is_equal(const LEX_STRING *a, const LEX_STRING *b);
unknown's avatar
unknown committed
1003 1004

/* bits for last argument to remove_table_from_cache() */
unknown's avatar
unknown committed
1005 1006 1007 1008
#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
1009
bool remove_table_from_cache(THD *thd, const char *db, const char *table,
unknown's avatar
unknown committed
1010
                             uint flags);
unknown's avatar
unknown committed
1011

unknown's avatar
unknown committed
1012
bool close_cached_tables(THD *thd, bool wait_for_refresh, TABLE_LIST *tables);
unknown's avatar
unknown committed
1013
void copy_field_from_tmp_record(Field *field,int offset);
unknown's avatar
unknown committed
1014 1015
bool fill_record(THD *thd, Field **field, List<Item> &values,
                 bool ignore_errors);
unknown's avatar
unknown committed
1016 1017 1018 1019 1020 1021 1022 1023 1024 1025
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);
1026
OPEN_TABLE_LIST *list_open_tables(THD *thd, const char *db, const char *wild);
unknown's avatar
unknown committed
1027

1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044
inline TABLE_LIST *find_table_in_global_list(TABLE_LIST *table,
                                             const char *db_name,
                                             const char *table_name)
{
  return find_table_in_list(table, offsetof(TABLE_LIST, next_global),
                            db_name, table_name);
}

inline TABLE_LIST *find_table_in_local_list(TABLE_LIST *table,
                                            const char *db_name,
                                            const char *table_name)
{
  return find_table_in_list(table, offsetof(TABLE_LIST, next_local),
                            db_name, table_name);
}


unknown's avatar
unknown committed
1045 1046 1047 1048
/* sql_calc.cc */
bool eval_const_cond(COND *cond);

/* sql_load.cc */
unknown's avatar
merge  
unknown committed
1049
bool mysql_load(THD *thd, sql_exchange *ex, TABLE_LIST *table_list,
unknown's avatar
unknown committed
1050 1051 1052
	        List<Item> &fields_vars, List<Item> &set_fields,
                List<Item> &set_values_list,
                enum enum_duplicates handle_duplicates, bool ignore,
1053
                bool local_file);
unknown's avatar
unknown committed
1054
int write_record(THD *thd, TABLE *table, COPY_INFO *info);
1055 1056 1057 1058

/* sql_manager.cc */
/* bits set in manager_status */
#define MANAGER_BERKELEY_LOG_CLEANUP    (1L << 0)
1059
extern ulong volatile manager_status;
1060
extern bool volatile manager_thread_in_use, mqh_used;
1061
extern pthread_t manager_thread;
1062
pthread_handler_t handle_manager(void *arg);
1063 1064
bool mysql_manager_submit(void (*action)());

1065

unknown's avatar
unknown committed
1066 1067 1068 1069
/* sql_test.cc */
#ifndef DBUG_OFF
void print_where(COND *cond,const char *info);
void print_cached_tables(void);
1070
void TEST_filesort(SORT_FIELD *sortorder,uint s_length);
1071 1072
void print_plan(JOIN* join, double read_time, double record_count,
                uint idx, const char *info);
unknown's avatar
unknown committed
1073
#endif
1074
void mysql_print_status();
unknown's avatar
unknown committed
1075 1076
/* key.cc */
int find_ref_key(TABLE *form,Field *field, uint *offset);
1077 1078 1079
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
1080
bool key_cmp_if_same(TABLE *form,const byte *key,uint index,uint key_length);
unknown's avatar
unknown committed
1081 1082
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
1083
int key_cmp(KEY_PART_INFO *key_part, const byte *key, uint key_length);
1084
int key_rec_cmp(void *key_info, byte *a, byte *b);
unknown's avatar
unknown committed
1085

unknown's avatar
unknown committed
1086
bool init_errmessage(void);
unknown's avatar
unknown committed
1087
void sql_perror(const char *message);
unknown's avatar
unknown committed
1088

1089 1090 1091 1092
void vprint_msg_to_log(enum loglevel level, const char *format, va_list args);
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
1093 1094 1095



1096 1097
bool fn_format_relative_to_data_home(my_string to, const char *name,
				     const char *dir, const char *extension);
1098 1099
File open_binlog(IO_CACHE *log, const char *log_file_name,
                 const char **errmsg);
unknown's avatar
unknown committed
1100

1101 1102 1103
/* mysqld.cc */
extern void yyerror(const char*);

1104 1105 1106
/* item_func.cc */
extern bool check_reserved_words(LEX_STRING *name);

1107
/* strfunc.cc */
1108
ulonglong find_set(TYPELIB *lib, const char *x, uint length, CHARSET_INFO *cs,
1109 1110
		   char **err_pos, uint *err_len, bool *set_warning);
uint find_type(TYPELIB *lib, const char *find, uint length, bool part_match);
1111
uint find_type2(TYPELIB *lib, const char *find, uint length, CHARSET_INFO *cs);
1112
void unhex_type2(TYPELIB *lib);
1113 1114 1115
uint check_word(TYPELIB *lib, const char *val, const char *end,
		const char **end_of_word);

1116 1117
bool is_keyword(const char *name, uint len);

unknown's avatar
unknown committed
1118

1119 1120
#define MY_DB_OPT_FILE "db.opt"
bool load_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create);
unknown's avatar
unknown committed
1121 1122
bool my_dbopt_init(void);
void my_dbopt_cleanup(void);
1123
void my_dbopt_free(void);
unknown's avatar
unknown committed
1124

unknown's avatar
unknown committed
1125 1126 1127 1128 1129
/*
  External variables
*/

extern time_t start_time;
unknown's avatar
unknown committed
1130
extern char *mysql_data_home,server_version[SERVER_VERSION_LENGTH],
unknown's avatar
unknown committed
1131
	    mysql_real_data_home[], *opt_mysql_tmpdir, mysql_charsets_dir[],
1132
            def_ft_boolean_syntax[sizeof(ft_boolean_syntax)];
unknown's avatar
unknown committed
1133 1134
#define mysql_tmpdir (my_tmpdir(&mysql_tmpdir_list))
extern MY_TMPDIR mysql_tmpdir_list;
unknown's avatar
unknown committed
1135
extern const char *command_name[];
unknown's avatar
unknown committed
1136
extern const char *first_keyword, *my_localhost, *delayed_user, *binary_keyword;
unknown's avatar
unknown committed
1137 1138
extern const char **errmesg;			/* Error messages */
extern const char *myisam_recover_options_str;
1139
extern const char *in_left_expr_name, *in_additional_cond;
1140
extern const char * const triggers_file_ext;
1141
extern const char * const trigname_file_ext;
unknown's avatar
unknown committed
1142 1143 1144 1145 1146 1147
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;
1148
extern char language[FN_REFLEN], reg_ext[FN_EXTLEN];
unknown's avatar
unknown committed
1149
extern char glob_hostname[FN_REFLEN], mysql_home[FN_REFLEN];
1150
extern char pidfile_name[FN_REFLEN], system_time_zone[30], *opt_init_file;
unknown's avatar
unknown committed
1151
extern char log_error_file[FN_REFLEN], *opt_tc_log_file;
unknown's avatar
unknown committed
1152
extern double log_10[32];
1153
extern ulonglong log_10_int[20];
1154
extern ulonglong keybuff_size;
1155
extern ulonglong thd_startup_options;
1156
extern ulong refresh_version,flush_version, thread_id;
1157
extern ulong binlog_cache_use, binlog_cache_disk_use;
unknown's avatar
unknown committed
1158 1159 1160 1161 1162
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;
1163 1164
extern ulong slave_open_temp_tables;
extern ulong query_cache_size, query_cache_min_res_unit;
1165
extern ulong slow_launch_threads, slow_launch_time;
1166
extern ulong table_cache_size;
unknown's avatar
unknown committed
1167
extern ulong max_connections,max_connect_errors, connect_timeout;
1168
extern ulong slave_net_timeout, slave_trans_retries;
1169
extern uint max_user_connections;
1170
extern ulong what_to_log,flush_time;
1171
extern ulong query_buff_size, thread_stack;
unknown's avatar
unknown committed
1172
extern ulong binlog_cache_size, max_binlog_cache_size, open_files_limit;
1173 1174
extern ulong max_binlog_size, max_relay_log_size;
extern ulong rpl_recovery_rank, thread_cache_size;
1175
extern ulong back_log;
unknown's avatar
unknown committed
1176
extern ulong specialflag, current_pid;
1177
extern ulong expire_logs_days, sync_binlog_period, sync_binlog_counter;
1178 1179
extern ulong opt_tc_log_size, tc_log_max_pages_used, tc_log_page_size;
extern ulong tc_log_page_waits;
1180
extern my_bool relay_log_purge, opt_innodb_safe_binlog, opt_innodb;
unknown's avatar
unknown committed
1181
extern uint test_flags,select_errors,ha_open_options;
1182
extern uint protocol_version, mysqld_port, dropping_tables;
unknown's avatar
unknown committed
1183
extern uint delay_key_write_options, lower_case_table_names;
1184 1185
extern bool opt_endinfo, using_udf_functions;
extern my_bool locked_in_memory;
1186
extern bool opt_using_transactions, mysqld_embedded;
1187
extern bool using_update_log, opt_large_files, server_id_supplied;
1188
extern bool opt_log, opt_update_log, opt_bin_log, opt_slow_log, opt_error_log;
1189
extern bool opt_disable_networking, opt_skip_show_db;
1190
extern my_bool opt_character_set_client_handshake;
unknown's avatar
unknown committed
1191
extern bool volatile abort_loop, shutdown_in_progress, grant_option;
1192
extern bool mysql_proc_table_exists;
unknown's avatar
unknown committed
1193
extern uint volatile thread_count, thread_running, global_read_lock;
1194
extern my_bool opt_sql_bin_update, opt_safe_user_create, opt_no_mix_types;
unknown's avatar
unknown committed
1195
extern my_bool opt_safe_show_db, opt_local_infile;
1196
extern my_bool opt_slave_compressed_protocol, use_temp_pool;
1197
extern my_bool opt_readonly, lower_case_file_system;
1198
extern my_bool opt_enable_named_pipe, opt_sync_frm, opt_allow_suspicious_udfs;
1199
extern my_bool opt_secure_auth;
unknown's avatar
unknown committed
1200
extern my_bool opt_log_slow_admin_statements;
1201
extern my_bool sp_automatic_privileges, opt_noacl;
1202
extern my_bool opt_old_style_user_limits, trust_routine_creators;
unknown's avatar
unknown committed
1203
extern uint opt_crash_binlog_innodb;
1204
extern char *shared_memory_base_name, *mysqld_unix_port;
unknown's avatar
unknown committed
1205
extern my_bool opt_enable_shared_memory;
1206
extern char *default_tz_name;
1207 1208
extern my_bool opt_large_pages;
extern uint opt_large_page_size;
unknown's avatar
unknown committed
1209

unknown's avatar
unknown committed
1210
extern MYSQL_LOG mysql_log,mysql_slow_log,mysql_bin_log;
1211
extern FILE *bootstrap_file;
1212
extern int bootstrap_error;
1213
extern FILE *stderror_file;
unknown's avatar
unknown committed
1214
extern pthread_key(MEM_ROOT**,THR_MALLOC);
unknown's avatar
unknown committed
1215 1216
extern pthread_mutex_t LOCK_mysql_create_db,LOCK_Acl,LOCK_open,
       LOCK_thread_count,LOCK_mapped_file,LOCK_user_locks, LOCK_status,
unknown's avatar
unknown committed
1217
       LOCK_error_log, LOCK_delayed_insert, LOCK_uuid_generator,
unknown's avatar
unknown committed
1218
       LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_timezone,
1219
       LOCK_slave_list, LOCK_active_mi, LOCK_manager, LOCK_global_read_lock,
1220
       LOCK_global_system_variables, LOCK_user_conn,
unknown's avatar
unknown committed
1221
       LOCK_bytes_sent, LOCK_bytes_received;
1222 1223 1224
#ifdef HAVE_OPENSSL
extern pthread_mutex_t LOCK_des_key_file;
#endif
unknown's avatar
unknown committed
1225 1226 1227
extern pthread_mutex_t LOCK_server_started;
extern pthread_cond_t COND_server_started;
extern int mysqld_server_started;
unknown's avatar
unknown committed
1228
extern rw_lock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave;
1229
extern pthread_cond_t COND_refresh, COND_thread_count, COND_manager;
unknown's avatar
unknown committed
1230
extern pthread_attr_t connection_attrib;
unknown's avatar
unknown committed
1231
extern I_List<THD> threads;
1232
extern I_List<NAMED_LIST> key_caches;
1233
extern MY_BITMAP temp_pool;
unknown's avatar
SCRUM  
unknown committed
1234
extern String my_empty_string;
1235
extern const String my_null_string;
unknown's avatar
unknown committed
1236
extern SHOW_VAR init_vars[],status_vars[], internal_vars[];
1237
extern struct system_variables global_system_variables;
unknown's avatar
unknown committed
1238
extern struct system_variables max_system_variables;
1239
extern struct system_status_var global_status_var;
1240
extern struct rand_struct sql_rand;
unknown's avatar
unknown committed
1241

1242 1243
extern const char *opt_date_time_formats[];
extern KNOWN_DATE_TIME_FORMAT known_date_time_formats[];
1244

unknown's avatar
unknown committed
1245
extern String null_string;
1246 1247 1248 1249
extern HASH open_cache;
extern TABLE *unused_tables;
extern const char* any_db;
extern struct my_option my_long_options[];
1250
extern const LEX_STRING view_type;
unknown's avatar
unknown committed
1251

unknown's avatar
unknown committed
1252 1253
/* optional things, have_* variables */

1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287
#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
1288
extern SHOW_COMP_OPTION have_federated_db;
1289 1290 1291 1292 1293
#endif
#ifdef WITH_BLACKHOLE_STORAGE_ENGINE
extern handlerton blackhole_hton;
#define have_blackhole_db blackhole_hton.state
#else
1294
extern SHOW_COMP_OPTION have_blackhole_db;
1295 1296 1297 1298 1299
#endif
#ifdef WITH_NDBCLUSTER_STORAGE_ENGINE
extern handlerton ndbcluster_hton;
#define have_ndbcluster ndbcluster_hton.state
#else
1300
extern SHOW_COMP_OPTION have_ndbcluster;
1301 1302 1303 1304 1305 1306 1307 1308 1309
#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

extern SHOW_COMP_OPTION have_isam;
unknown's avatar
unknown committed
1310
extern SHOW_COMP_OPTION have_raid, have_openssl, have_symlink;
1311
extern SHOW_COMP_OPTION have_query_cache;
1312
extern SHOW_COMP_OPTION have_geometry, have_rtree_keys;
unknown's avatar
unknown committed
1313
extern SHOW_COMP_OPTION have_crypt;
unknown's avatar
unknown committed
1314
extern SHOW_COMP_OPTION have_compress;
1315

unknown's avatar
unknown committed
1316 1317 1318 1319
#ifndef __WIN__
extern pthread_t signal_thread;
#endif

1320 1321 1322 1323
#ifdef HAVE_OPENSSL
extern struct st_VioSSLAcceptorFd * ssl_acceptor_fd;
#endif /* HAVE_OPENSSL */

1324 1325
MYSQL_LOCK *mysql_lock_tables(THD *thd, TABLE **table, uint count,
                              uint flags, bool *need_reopen);
1326 1327 1328
/* mysql_lock_tables() flags bits */
#define MYSQL_LOCK_IGNORE_GLOBAL_READ_LOCK      0x0001
#define MYSQL_LOCK_IGNORE_FLUSH                 0x0002
1329
#define MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN        0x0004
1330

unknown's avatar
unknown committed
1331 1332 1333 1334 1335
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);
void mysql_lock_abort(THD *thd, TABLE *table);
unknown's avatar
unknown committed
1336
bool mysql_lock_abort_for_thread(THD *thd, TABLE *table);
unknown's avatar
unknown committed
1337
MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);
1338 1339
bool lock_global_read_lock(THD *thd);
void unlock_global_read_lock(THD *thd);
1340 1341
bool wait_if_global_read_lock(THD *thd, bool abort_on_refresh,
                              bool is_not_commit);
1342
void start_waiting_global_read_lock(THD *thd);
1343
bool make_global_read_lock_block_commit(THD *thd);
1344 1345
bool set_protect_against_global_read_lock(void);
void unset_protect_against_global_read_lock(void);
unknown's avatar
unknown committed
1346

unknown's avatar
unknown committed
1347
/* Lock based on name */
1348
int lock_and_wait_for_table_name(THD *thd, TABLE_LIST *table_list);
unknown's avatar
unknown committed
1349 1350 1351
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);
1352 1353
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
1354
			TABLE_LIST *last_table);
unknown's avatar
unknown committed
1355

unknown's avatar
unknown committed
1356 1357 1358 1359

/* old unireg functions */

void unireg_init(ulong options);
1360
void unireg_end(void);
1361
bool mysql_create_frm(THD *thd, my_string file_name,
unknown's avatar
unknown committed
1362
                      const char *db, const char *table,
1363 1364 1365
		      HA_CREATE_INFO *create_info,
		      List<create_field> &create_field,
		      uint key_count,KEY *key_info,handler *db_type);
1366
int rea_create_table(THD *thd, my_string file_name,
unknown's avatar
unknown committed
1367
                     const char *db, const char *table,
1368
                     HA_CREATE_INFO *create_info,
unknown's avatar
unknown committed
1369
		     List<create_field> &create_field,
1370
		     uint key_count,KEY *key_info, handler *file);
unknown's avatar
unknown committed
1371 1372
int format_number(uint inputflag,uint max_length,my_string pos,uint length,
		  my_string *errpos);
1373 1374
int openfrm(THD *thd, const char *name,const char *alias,uint filestat,
            uint prgflag, uint ha_open_flags, TABLE *outparam);
unknown's avatar
unknown committed
1375 1376
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
1377 1378 1379 1380 1381 1382 1383 1384
int closefrm(TABLE *table);
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);
1385
my_time_t TIME_to_timestamp(THD *thd, const TIME *t, my_bool *not_exist);
1386
bool str_to_time_with_warn(const char *str,uint length,TIME *l_time);
1387 1388
timestamp_type str_to_datetime_with_warn(const char *str, uint length,
                                         TIME *l_time, uint flags);
1389
void localtime_to_TIME(TIME *to, struct tm *from);
unknown's avatar
unknown committed
1390
void calc_time_from_sec(TIME *to, long seconds, long microseconds);
unknown's avatar
unknown committed
1391

1392
void make_truncated_value_warning(THD *thd, const char *str_val,
unknown's avatar
unknown committed
1393 1394
				  uint str_length, timestamp_type time_type,
                                  const char *field_name);
1395 1396 1397 1398 1399 1400 1401 1402 1403
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);
1404 1405 1406 1407 1408 1409
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);
1410

unknown's avatar
unknown committed
1411 1412 1413 1414
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,
1415
		      int use_record_cache, bool print_errors);
1416 1417
void init_read_record_idx(READ_RECORD *info, THD *thd, TABLE *table, 
                          bool print_error, uint idx);
unknown's avatar
unknown committed
1418
void end_read_record(READ_RECORD *info);
1419 1420 1421
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
1422
void filesort_free_buffers(TABLE *table);
unknown's avatar
unknown committed
1423
void change_double_for_sort(double nr,byte *to);
1424
double my_double_round(double value, int dec, bool truncate);
unknown's avatar
unknown committed
1425 1426
int get_quick_record(SQL_SELECT *select);
int calc_weekday(long daynr,bool sunday_first_day_of_week);
1427
uint calc_week(TIME *l_time, uint week_behaviour, uint *year);
unknown's avatar
unknown committed
1428 1429 1430 1431 1432 1433 1434
void find_date(char *pos,uint *vek,uint flag);
TYPELIB *convert_strings_to_array_type(my_string *typelibs, my_string *end);
TYPELIB *typelib(List<String> &strings);
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);
1435
void append_unescaped(String *res, const char *pos, uint length);
unknown's avatar
unknown committed
1436
int create_frm(THD *thd, char *name, const char *db, const char *table,
1437
               uint reclength,uchar *fileinfo,
unknown's avatar
unknown committed
1438 1439 1440
	       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);
1441
bool check_db_name(char *db);
unknown's avatar
unknown committed
1442 1443
bool check_column_name(const char *name);
bool check_table_name(const char *name, uint length);
1444
char *get_field(MEM_ROOT *mem, Field *field);
unknown's avatar
unknown committed
1445
bool get_field(MEM_ROOT *mem, Field *field, class String *res);
1446
int wild_case_compare(CHARSET_INFO *cs, const char *str,const char *wildstr);
unknown's avatar
unknown committed
1447

unknown's avatar
unknown committed
1448 1449 1450 1451 1452 1453 1454 1455
/* 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);
1456

unknown's avatar
unknown committed
1457
/* sql_cache.cc */
unknown's avatar
unknown committed
1458 1459 1460 1461
extern bool sql_cache_init();
extern void sql_cache_free();
extern int sql_cache_hit(THD *thd, char *inBuf, uint length);

1462
/* item_func.cc */
1463 1464
Item *get_system_var(THD *thd, enum_var_type var_type, LEX_STRING name,
		     LEX_STRING component);
1465 1466
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
1467 1468
/* log.cc */
bool flush_error_log(void);
unknown's avatar
unknown committed
1469

1470 1471 1472 1473
/* sql_list.cc */
void free_list(I_List <i_string_pair> *list);
void free_list(I_List <i_string> *list);

1474 1475 1476 1477 1478 1479 1480 1481
/* 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
1482 1483
#include "sql_view.h"

unknown's avatar
unknown committed
1484 1485
/* Some inline functions for more speed */

unknown's avatar
unknown committed
1486
inline bool add_item_to_list(THD *thd, Item *item)
unknown's avatar
unknown committed
1487
{
unknown's avatar
unknown committed
1488
  return thd->lex->current_select->add_item_to_list(thd, item);
unknown's avatar
unknown committed
1489
}
unknown's avatar
unknown committed
1490 1491

inline bool add_value_to_list(THD *thd, Item *value)
unknown's avatar
unknown committed
1492
{
unknown's avatar
unknown committed
1493
  return thd->lex->value_list.push_back(value);
unknown's avatar
unknown committed
1494
}
unknown's avatar
unknown committed
1495 1496

inline bool add_order_to_list(THD *thd, Item *item, bool asc)
unknown's avatar
unknown committed
1497
{
unknown's avatar
unknown committed
1498
  return thd->lex->current_select->add_order_to_list(thd, item, asc);
unknown's avatar
unknown committed
1499
}
unknown's avatar
unknown committed
1500 1501

inline bool add_group_to_list(THD *thd, Item *item, bool asc)
unknown's avatar
unknown committed
1502
{
unknown's avatar
unknown committed
1503
  return thd->lex->current_select->add_group_to_list(thd, item, asc);
unknown's avatar
unknown committed
1504
}
unknown's avatar
unknown committed
1505

unknown's avatar
unknown committed
1506 1507 1508
inline void mark_as_null_row(TABLE *table)
{
  table->null_row=1;
1509
  table->status|=STATUS_NULL_ROW;
1510
  bfill(table->null_flags,table->s->null_bytes,255);
unknown's avatar
unknown committed
1511
}
unknown's avatar
unknown committed
1512

1513 1514 1515
inline void table_case_convert(char * name, uint length)
{
  if (lower_case_table_names)
1516 1517
    files_charset_info->cset->casedn(files_charset_info,
                                     name, length, name, length);
unknown's avatar
unknown committed
1518 1519
}

unknown's avatar
unknown committed
1520 1521 1522 1523
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
1524

unknown's avatar
unknown committed
1525 1526 1527 1528 1529 1530 1531 1532
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
1533 1534 1535 1536 1537 1538
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
1539

unknown's avatar
unknown committed
1540 1541 1542 1543 1544
Item * all_any_subquery_creator(Item *left_expr,
				chooser_compare_func_creator cmp,
				bool all,
				SELECT_LEX *select_lex);

unknown's avatar
unknown committed
1545 1546 1547 1548 1549 1550 1551 1552 1553
/*
  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
1554

unknown's avatar
unknown committed
1555 1556 1557 1558
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
1559
  table->null_row= 0;
unknown's avatar
unknown committed
1560
  table->status= STATUS_NO_RECORD;
1561
  table->keys_in_use_for_query= table->s->keys_in_use;
1562
  table->maybe_null= table_list->outer_join;
unknown's avatar
unknown committed
1563 1564 1565 1566 1567 1568
  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
1569 1570 1571 1572
  table->tablenr= tablenr;
  table->map= (table_map) 1 << tablenr;
  table->force_index= table_list->force_index;
}
1573

unknown's avatar
SCRUM  
unknown committed
1574

1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591
/*
  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;
}


1592 1593 1594 1595 1596 1597 1598 1599
/*
  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);
1600
bool check_stack_overrun(THD *thd, long margin, char *dummy);
1601 1602 1603
#else
#define unireg_abort(exit_code) DBUG_RETURN(exit_code)
inline void kill_delayed_threads(void) {}
1604
#define check_stack_overrun(A, B, C) 0
1605
#endif
unknown's avatar
unknown committed
1606

1607
#endif /* MYSQL_CLIENT */