mysql_priv.h 63 KB
Newer Older
monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
1
/* Copyright (C) 2000-2003 MySQL AB
2

bk@work.mysql.com's avatar
bk@work.mysql.com 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

bk@work.mysql.com's avatar
bk@work.mysql.com 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

bk@work.mysql.com's avatar
bk@work.mysql.com 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

26
#include <my_global.h>
27 28
#include <mysql_version.h>
#include <mysql_embed.h>
bk@work.mysql.com's avatar
bk@work.mysql.com committed
29
#include <my_sys.h>
30
#include <my_time.h>
bk@work.mysql.com's avatar
bk@work.mysql.com 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"
bk@work.mysql.com's avatar
bk@work.mysql.com committed
38

monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
39
#ifdef __EMX__
salle@geopard.online.bg's avatar
salle@geopard.online.bg committed
40
#undef write  /* remove pthread.h macro definition for EMX */
monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi 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 */
igor@rurik.mysql.com's avatar
igor@rurik.mysql.com 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;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
70 71

#include "mysql_com.h"
tonu@hundin.mysql.fi's avatar
tonu@hundin.mysql.fi committed
72
#include <violite.h>
bk@work.mysql.com's avatar
bk@work.mysql.com committed
73 74
#include "unireg.h"

75
void init_sql_alloc(MEM_ROOT *root, uint block_size, uint pre_alloc_size);
bk@work.mysql.com's avatar
bk@work.mysql.com 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);
monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi 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);
sasha@mysql.sashanet.com's avatar
sasha@mysql.sashanet.com committed
88
char* query_table_status(THD *thd,const char *db,const char *table_name);
bk@work.mysql.com's avatar
bk@work.mysql.com 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
extern CHARSET_INFO *system_charset_info, *files_charset_info ;
extern CHARSET_INFO *national_charset_info, *table_alias_charset;
97

bar@mysql.com's avatar
bar@mysql.com committed
98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114

typedef struct my_locale_st
{
  const char *name;
  const char *description;
  const bool is_ascii;
  TYPELIB *month_names;
  TYPELIB *ab_month_names;
  TYPELIB *day_names;
  TYPELIB *ab_day_names;
} MY_LOCALE;

extern MY_LOCALE my_locale_en_US;
extern MY_LOCALE *my_locales[];

MY_LOCALE *my_locale_by_name(const char *name);

bk@work.mysql.com's avatar
bk@work.mysql.com committed
115
/***************************************************************************
116
  Configuration parameters
bk@work.mysql.com's avatar
bk@work.mysql.com committed
117 118 119
****************************************************************************/

#define ACL_CACHE_SIZE		256
120
#define MAX_PASSWORD_LENGTH	32
bk@work.mysql.com's avatar
bk@work.mysql.com committed
121 122 123 124 125
#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.
126
#define STACK_MIN_SIZE_FOR_OPEN 1024*80
monty@mysql.com's avatar
monty@mysql.com committed
127
#define STACK_BUFF_ALLOC	256	// For stack overrun checks
bk@work.mysql.com's avatar
bk@work.mysql.com committed
128 129 130
#ifndef MYSQLD_NET_RETRY_COUNT
#define MYSQLD_NET_RETRY_COUNT  10	// Abort read after this many int.
#endif
131
#define TEMP_POOL_SIZE          128
132 133 134 135 136 137 138 139 140

#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
141 142 143
#define BDB_LOG_ALLOC_BLOCK_SIZE	1024
#define WARN_ALLOC_BLOCK_SIZE		2048
#define WARN_ALLOC_PREALLOC_SIZE	1024
144

145 146
/*
  The following parameters is to decide when to use an extra cache to
147
  optimise seeks when reading a big table in sorted order
148
*/
149
#define MIN_FILE_LENGTH_TO_USE_ROW_CACHE (10L*1024*1024)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
150
#define MIN_ROWS_TO_USE_TABLE_CACHE	 100
151
#define MIN_ROWS_TO_USE_BULK_INSERT	 100
bk@work.mysql.com's avatar
bk@work.mysql.com committed
152

153 154 155 156 157
/*
  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.
*/
158
#define TIME_FOR_COMPARE   5	// 5 compares == one read
159

160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179
/*
  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)


180 181 182 183 184
/*
  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.
*/
185
#define MATCHING_ROWS_IN_OTHER_TABLE 10
bk@work.mysql.com's avatar
bk@work.mysql.com committed
186 187 188 189 190 191 192 193 194 195

/* 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
196 197 198
#define TIMESTAMP_MIN_YEAR (1900 + YY_PART_YEAR - 1)
#define TIMESTAMP_MAX_VALUE 2145916799
#define TIMESTAMP_MIN_VALUE 1
bk@work.mysql.com's avatar
bk@work.mysql.com committed
199 200 201 202 203 204 205 206 207 208 209 210
#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

211 212 213 214 215
#ifdef HAVE_INNOBASE_DB
#define IF_INNOBASE_DB(A, B) (A)
#else
#define IF_INNOBASE_DB(A, B) (B)
#endif
216 217 218 219 220
#ifdef __NETWARE__
#define IF_NETWARE(A,B) (A)
#else
#define IF_NETWARE(A,B) (B)
#endif
221

monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
222
#if defined(__WIN__) || defined(OS2)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238
#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__ */

monty@donna.mysql.com's avatar
monty@donna.mysql.com committed
239
	/* Bits from testflag */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
240 241 242 243 244 245 246 247
#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
248
#define TEST_CORE_ON_SIGNAL	256	/* Give core if signal */
249
#define TEST_NO_STACKTRACE	512
250
#define TEST_SIGINT		1024	/* Allow sigint on threads */
serg@serg.mylan's avatar
serg@serg.mylan committed
251 252
#define TEST_SYNCHRONIZATION    2048    /* get server to do sleep in
                                           some places */
253 254
#endif

serg@serg.mylan's avatar
serg@serg.mylan committed
255
/*
256 257
   This is included in the server and in the client.
   Options for select set by the yacc parser (stored in lex->options).
serg@serg.mylan's avatar
serg@serg.mylan committed
258 259 260 261 262 263 264 265 266 267 268 269 270

   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.
271 272
*/

serg@serg.mylan's avatar
serg@serg.mylan committed
273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300
#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
301

302
/* Set if we are updating a non-transaction safe table */
serg@serg.mylan's avatar
serg@serg.mylan committed
303
#define OPTION_STATUS_NO_TRANS_UPDATE   (1L << 25) // THD, intern
304

305 306
/* The following can be set when importing tables in a 'wrong order'
   to suppress foreign key checks */
serg@serg.mylan's avatar
serg@serg.mylan committed
307
#define OPTION_NO_FOREIGN_KEY_CHECKS    (1L << 26) // THD, user, binlog
308 309
/* The following speeds up inserts to InnoDB tables by suppressing unique
   key checks in some cases */
serg@serg.mylan's avatar
serg@serg.mylan committed
310 311 312
#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
313
/* Flag set if setup_tables already done */
serg@serg.mylan's avatar
serg@serg.mylan committed
314 315
#define OPTION_SETUP_TABLES_DONE        (1L << 30) // intern
/* If not set then the thread will ignore all warnings with level notes. */
316
#define OPTION_SQL_NOTES                (1UL << 31) // THD, user
317 318 319 320 321
/* 
  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)
322

serg@serg.mylan's avatar
serg@serg.mylan committed
323 324
/*
  Maximum length of time zone name that we support
325 326 327 328
  (Time zone name is char(64) in db). mysqlbinlog needs it.
*/
#define MAX_TIME_ZONE_NAME_LENGTH 72

329 330 331
/* The rest of the file is included in the server only */
#ifndef MYSQL_CLIENT

332
/* Bits for different SQL modes modes (including ANSI mode) */
serg@serg.mylan's avatar
serg@serg.mylan committed
333 334 335
#define MODE_REAL_AS_FLOAT              1
#define MODE_PIPES_AS_CONCAT            2
#define MODE_ANSI_QUOTES                4
336
#define MODE_IGNORE_SPACE		8
337
#define MODE_NOT_USED			16
338 339
#define MODE_ONLY_FULL_GROUP_BY		32
#define MODE_NO_UNSIGNED_SUBTRACTION	64
340
#define MODE_NO_DIR_IN_CREATE		128
monty@narttu.mysql.fi's avatar
monty@narttu.mysql.fi committed
341 342 343 344
#define MODE_POSTGRESQL			256
#define MODE_ORACLE			512
#define MODE_MSSQL			1024
#define MODE_DB2			2048
345
#define MODE_MAXDB			4096
monty@narttu.mysql.fi's avatar
monty@narttu.mysql.fi committed
346
#define MODE_NO_KEY_OPTIONS             8192
347 348 349 350 351 352 353 354 355 356 357 358 359 360
#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)
361
#define MODE_NO_AUTO_CREATE_USER	(MODE_TRADITIONAL*2)
362
#define MODE_HIGH_NOT_PRECEDENCE	(MODE_NO_AUTO_CREATE_USER*2)
363
#define MODE_NO_ENGINE_SUBSTITUTION     (MODE_HIGH_NOT_PRECEDENCE*2)
364 365 366 367 368
/*
  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).
369 370 371 372

  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
373
*/
374

bk@work.mysql.com's avatar
bk@work.mysql.com committed
375 376
#define RAID_BLOCK_SIZE 1024

377 378
#define MY_CHARSET_BIN_MB_MAXLEN 1

379 380 381
// uncachable cause
#define UNCACHEABLE_DEPENDENT   1
#define UNCACHEABLE_RAND        2
382 383 384
#define UNCACHEABLE_SIDEEFFECT	4
// forcing to save JOIN for explain
#define UNCACHEABLE_EXPLAIN     8
385 386
/* Don't evaluate subqueries in prepare even if they're not correlated */
#define UNCACHEABLE_PREPARE    16
387

388
#ifdef EXTRA_DEBUG
389 390 391 392 393 394 395
/*
  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
*/
396 397 398 399 400
#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)
401
#endif /* EXTRA_DEBUG */
402

bk@work.mysql.com's avatar
bk@work.mysql.com committed
403 404 405 406
/* BINLOG_DUMP options */

#define BINLOG_DUMP_NON_BLOCK   1

tim@cane.mysql.fi's avatar
tim@cane.mysql.fi committed
407 408 409 410
/* sql_show.cc:show_log_files() */
#define SHOW_LOG_STATUS_FREE "FREE"
#define SHOW_LOG_STATUS_INUSE "IN USE"

411 412 413 414
struct st_table_list;
class String;
void view_store_options(THD *thd, st_table_list *table, String *buff);

415 416 417
/* Options to add_table_to_list() */
#define TL_OPTION_UPDATING	1
#define TL_OPTION_FORCE_INDEX	2
igor@rurik.mysql.com's avatar
igor@rurik.mysql.com committed
418
#define TL_OPTION_IGNORE_LEAVES 4
419

bk@work.mysql.com's avatar
bk@work.mysql.com committed
420 421 422 423 424 425 426
/* Some portable defines */

#define portable_sizeof_char_ptr 8

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

427 428 429 430 431
/* Flags for calc_week() function.  */
#define WEEK_MONDAY_FIRST    1
#define WEEK_YEAR            2
#define WEEK_FIRST_WEEKDAY   4

432 433
#define STRING_BUFFER_USUAL_SIZE 80

434 435 436 437
enum enum_parsing_place
{
  NO_MATTER,
  IN_HAVING,
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
438 439
  SELECT_LIST,
  IN_WHERE
440 441
};

bk@work.mysql.com's avatar
bk@work.mysql.com committed
442 443 444 445 446 447 448 449 450
struct st_table;
class THD;

/* Struct to handle simple linked lists */

typedef struct st_sql_list {
  uint elements;
  byte *first;
  byte **next;
451

452
  st_sql_list() {}                              /* Remove gcc warning */
453 454 455 456 457 458 459 460 461 462 463 464 465
  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;
  }
466 467 468 469 470 471 472 473 474 475 476
  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;
  }
477 478 479 480 481 482 483 484 485
  inline void push_back(struct st_sql_list *save)
  {
    if (save->first)
    {
      *next= save->first;
      next= save->next;
      elements+= save->elements;
    }
  }
bk@work.mysql.com's avatar
bk@work.mysql.com committed
486 487 488 489 490 491 492 493 494 495
} 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()

496 497 498 499 500
/*
  External variables
*/
extern ulong server_id, concurrency;

serg@serg.mylan's avatar
serg@serg.mylan committed
501

502 503 504
typedef my_bool (*qc_engine_callback)(THD *thd, char *table_key,
                                      uint key_length,
                                      ulonglong *engine_data);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
505 506 507
#include "sql_string.h"
#include "sql_list.h"
#include "sql_map.h"
508
#include "my_decimal.h"
bk@work.mysql.com's avatar
bk@work.mysql.com committed
509
#include "handler.h"
510
#include "parse_file.h"
bk@work.mysql.com's avatar
bk@work.mysql.com committed
511
#include "table.h"
512
#include "sql_error.h"
bk@work.mysql.com's avatar
bk@work.mysql.com committed
513
#include "field.h"				/* Field definitions */
514
#include "protocol.h"
bk@work.mysql.com's avatar
bk@work.mysql.com committed
515
#include "sql_udf.h"
516
class user_var_entry;
517
class Security_context;
518 519
enum enum_var_type
{
520
  OPT_DEFAULT= 0, OPT_SESSION, OPT_GLOBAL
521 522
};
class sys_var;
523
class Comp_creator;
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
524
typedef Comp_creator* (*chooser_compare_func_creator)(bool invert);
525
#include "item.h"
sergefp@mysql.com's avatar
sergefp@mysql.com committed
526 527
extern my_decimal decimal_zero;

528 529 530
/* sql_parse.cc */
void free_items(Item *item);
void cleanup_items(Item *item);
531
class THD;
532
void close_thread_tables(THD *thd, bool locked=0, bool skip_derived=0);
533
bool check_one_table_access(THD *thd, ulong privilege,
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
534
			   TABLE_LIST *tables);
535 536
bool check_single_table_access(THD *thd, ulong privilege,
			   TABLE_LIST *tables);
537 538
bool check_routine_access(THD *thd,ulong want_access,char *db,char *name,
			  bool is_proc, bool no_errors);
539
bool check_some_access(THD *thd, ulong want_access, TABLE_LIST *table);
540 541
bool check_merge_table_access(THD *thd, char *db,
			      TABLE_LIST *table_list);
542
bool check_some_routine_access(THD *thd, const char *db, const char *name, bool is_proc);
543
bool multi_update_precheck(THD *thd, TABLE_LIST *tables);
544
bool multi_delete_precheck(THD *thd, TABLE_LIST *tables);
545 546 547 548 549
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);
bell@sanja.is.com.ua's avatar
merge  
bell@sanja.is.com.ua committed
550
bool insert_precheck(THD *thd, TABLE_LIST *tables);
551 552
bool create_table_precheck(THD *thd, TABLE_LIST *tables,
                           TABLE_LIST *create_table);
553 554
int append_query_string(CHARSET_INFO *csinfo,
                        String const *from, String *to);
555

556
void get_default_definer(THD *thd, LEX_USER *definer);
557
LEX_USER *create_default_definer(THD *thd);
558
LEX_USER *create_definer(THD *thd, LEX_STRING *user_name, LEX_STRING *host_name);
559
LEX_USER *get_current_user(THD *thd, LEX_USER *user);
560 561 562 563 564 565 566 567

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);

bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
568
Item *negate_expression(THD *thd, Item *expr);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
569
#include "sql_class.h"
570 571
#include "sql_acl.h"
#include "tztime.h"
bk@work.mysql.com's avatar
bk@work.mysql.com committed
572
#include "opt_range.h"
573 574

#ifdef HAVE_QUERY_CACHE
575 576 577
struct Query_cache_query_flags
{
  unsigned int client_long_flag:1;
578
  unsigned int client_protocol_41:1;
579
  unsigned int more_results_exists:1;
580
  unsigned int pkt_nr;
581 582 583
  uint character_set_client_num;
  uint character_set_results_num;
  uint collation_connection_num;
584
  ha_rows limit;
585
  Time_zone *time_zone;
586 587 588
  ulong sql_mode;
  ulong max_sort_length;
  ulong group_concat_max_len;
bar@mysql.com's avatar
bar@mysql.com committed
589
  MY_LOCALE *lc_time_names;
590 591
};
#define QUERY_CACHE_FLAGS_SIZE sizeof(Query_cache_query_flags)
monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
592
#include "sql_cache.h"
593 594 595
#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)
596
#define query_cache_init() query_cache.init()
597
#define query_cache_resize(A) query_cache.resize(A)
598
#define query_cache_set_min_res_unit(A) query_cache.set_min_res_unit(A)
599 600 601 602 603 604 605
#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
606
#define QUERY_CACHE_FLAGS_SIZE 0
607 608 609
#define query_cache_store_query(A, B)
#define query_cache_destroy()
#define query_cache_result_size_limit(A)
610
#define query_cache_init()
611
#define query_cache_resize(A)
612
#define query_cache_set_min_res_unit(A)
613 614 615 616 617 618 619 620 621
#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*/
bk@work.mysql.com's avatar
bk@work.mysql.com committed
622

623 624 625
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);
626
void mysql_binlog_send(THD* thd, char* log_ident, my_off_t pos, ushort flags);
627 628
bool mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists,
                    my_bool drop_temporary);
629
int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
bell@sanja.is.com.ua's avatar
VIEW  
bell@sanja.is.com.ua committed
630
			 bool drop_temporary, bool drop_view, bool log_query);
631
int mysql_rm_table_part2_with_lock(THD *thd, TABLE_LIST *tables,
632
				   bool if_exists, bool drop_temporary,
633
				   bool log_query);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
634 635
int quick_rm_table(enum db_type base,const char *db,
		   const char *table_name);
636
void close_cached_table(THD *thd, TABLE *table);
637
bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list);
638
bool mysql_change_db(THD *thd,const char *name,bool no_access_check);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
639
void mysql_parse(THD *thd,char *inBuf,uint length);
640
bool mysql_test_parse_for_slave(THD *thd,char *inBuf,uint length);
641
bool is_update_query(enum enum_sql_command command);
642
bool alloc_query(THD *thd, const char *packet, uint packet_length);
643
void mysql_init_select(LEX *lex);
644
void mysql_reset_thd_for_next_command(THD *thd);
monty@mysql.com's avatar
monty@mysql.com committed
645
void mysql_init_query(THD *thd, uchar *buf, uint length);
646
bool mysql_new_select(LEX *lex, bool move_down);
647
void create_select_for_variable(const char *var_name);
monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
648
void mysql_init_multi_delete(LEX *lex);
649
bool multi_delete_set_locks_and_link_aux_tables(LEX *lex);
650
void init_max_user_conn(void);
651
void init_update_queries(void);
652
void free_max_user_conn(void);
653 654
pthread_handler_t handle_one_connection(void *arg);
pthread_handler_t handle_bootstrap(void *arg);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
655 656
void end_thread(THD *thd,bool put_in_cache);
void flush_thread_cache();
657
bool mysql_execute_command(THD *thd);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
658
bool do_command(THD *thd);
659 660
bool dispatch_command(enum enum_server_command command, THD *thd,
		      char* packet, uint packet_length);
konstantin@mysql.com's avatar
konstantin@mysql.com committed
661
void log_slow_statement(THD *thd);
662
bool check_dup(const char *db, const char *name, TABLE_LIST *tables);
663

664
bool table_cache_init(void);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
665 666 667
void table_cache_free(void);
uint cached_tables(void);
void kill_mysql(void);
668
void close_connection(THD *thd, uint errcode, bool lock);
hf@deer.(none)'s avatar
hf@deer.(none) committed
669 670 671
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,
672
		  bool no_grant, bool no_errors, bool schema_db);
673
bool check_table_access(THD *thd, ulong want_access, TABLE_LIST *tables,
hf@deer.(none)'s avatar
hf@deer.(none) committed
674
			bool no_errors);
675
bool check_global_access(THD *thd, ulong want_access);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
676

677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692
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);
693 694
int reassign_keycache_tables(THD* thd, KEY_CACHE *src_cache,
                             KEY_CACHE *dst_cache);
695
TABLE *create_virtual_tmp_table(THD *thd, List<create_field> &field_list);
igor@rurik.mysql.com's avatar
igor@rurik.mysql.com committed
696

697 698
bool mysql_xa_recover(THD *thd);

699
bool check_simple_select();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
700

701
SORT_FIELD * make_unireg_sortorder(ORDER *order, uint *length);
702 703 704 705
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,
monty@narttu.mysql.fi's avatar
monty@narttu.mysql.fi committed
706
		bool *hidden_group_fields);
707

708 709
bool handle_select(THD *thd, LEX *lex, select_result *result,
                   ulong setup_tables_done_option);
710 711 712 713 714 715
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);
716
void free_underlaid_joins(THD *thd, SELECT_LEX *select);
717 718
bool mysql_explain_union(THD *thd, SELECT_LEX_UNIT *unit,
                         select_result *result);
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
719 720
int mysql_explain_select(THD *thd, SELECT_LEX *sl, char const *type,
			 select_result *result);
721
bool mysql_union(THD *thd, LEX *lex, select_result *result,
722
                 SELECT_LEX_UNIT *unit, ulong setup_tables_done_option);
723 724 725 726 727
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);
728
Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
729
			Item ***copy_func, Field **from_field,
730
                        Field **def_field,
monty@mysql.com's avatar
monty@mysql.com committed
731
			bool group, bool modify_item,
ramil@mysql.com's avatar
ramil@mysql.com committed
732
			bool table_cant_handle_bit_fields,
evgen@sunlight.local's avatar
evgen@sunlight.local committed
733
                        bool make_copy_field,
monty@mysql.com's avatar
monty@mysql.com committed
734
                        uint convert_blob_length);
735
void sp_prepare_create_field(THD *thd, create_field *sql_field);
736
int prepare_create_field(create_field *sql_field, 
monty@mysql.com's avatar
monty@mysql.com committed
737 738
			 uint *blob_columns, 
			 int *timestamps, int *timestamps_with_niladic,
739
			 uint table_flags);
740 741 742 743
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);
serg@serg.mylan's avatar
serg@serg.mylan committed
744

745 746 747 748 749
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,
750
                       uint order_num, ORDER *order, bool ignore,
monty@mysql.com's avatar
monty@mysql.com committed
751
                       ALTER_INFO *alter_info, bool do_send_ok);
752 753 754 755
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);
756 757 758 759 760
bool mysql_rename_table(enum db_type base,
			const char *old_db,
			const char * old_name,
			const char *new_db,
			const char * new_name);
761 762 763
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);
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
764 765
bool mysql_prepare_update(THD *thd, TABLE_LIST *table_list,
                          Item **conds, uint order_num, ORDER *order);
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
766 767 768
int mysql_update(THD *thd,TABLE_LIST *tables,List<Item> &fields,
		 List<Item> &values,COND *conds,
		 uint order_num, ORDER *order, ha_rows limit,
769
		 enum enum_duplicates handle_duplicates, bool ignore);
770 771
bool mysql_multi_update(THD *thd, TABLE_LIST *table_list,
                        List<Item> *fields, List<Item> *values,
772
                        COND *conds, ulonglong options,
773
                        enum enum_duplicates handle_duplicates, bool ignore,
774
                        SELECT_LEX_UNIT *unit, SELECT_LEX *select_lex);
monty@mysql.com's avatar
monty@mysql.com committed
775
bool mysql_prepare_insert(THD *thd, TABLE_LIST *table_list, TABLE *table,
776 777
                          List<Item> &fields, List_item *values,
                          List<Item> &update_fields,
monty@mysql.com's avatar
monty@mysql.com committed
778 779
                          List<Item> &update_values, enum_duplicates duplic,
                          COND **where, bool select_insert);
780 781
bool mysql_insert(THD *thd,TABLE_LIST *table,List<Item> &fields,
                  List<List_item> &values, List<Item> &update_fields,
782 783
                  List<Item> &update_values, enum_duplicates flag,
                  bool ignore);
784 785
int check_that_all_fields_are_given_values(THD *thd, TABLE *entry,
                                           TABLE_LIST *table_list);
786 787
void mark_fields_used_by_triggers_for_insert_stmt(THD *thd, TABLE *table,
                                                  enum_duplicates duplic);
788
bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds);
osku@127.(none)'s avatar
osku@127.(none) committed
789 790 791
bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
                  SQL_LIST *order, ha_rows rows, ulonglong options,
                  bool reset_auto_increment);
792 793
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);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
794
TABLE *open_ltable(THD *thd, TABLE_LIST *table_list, thr_lock_type update);
bell@sanja.is.com.ua's avatar
VIEW  
bell@sanja.is.com.ua committed
795
TABLE *open_table(THD *thd, TABLE_LIST *table_list, MEM_ROOT* mem,
796
		  bool *refresh, uint flags);
797
bool reopen_name_locked_table(THD* thd, TABLE_LIST* table);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
798
TABLE *find_locked_table(THD *thd, const char *db,const char *table_name);
monty@mysql.com's avatar
monty@mysql.com committed
799
bool reopen_table(TABLE *table,bool locked);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
800
bool reopen_tables(THD *thd,bool get_locks,bool in_refresh);
801 802
void close_old_data_files(THD *thd, TABLE *table, bool abort_locks,
			  bool send_refresh);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
803 804
bool close_data_tables(THD *thd,const char *db, const char *table_name);
bool wait_for_tables(THD *thd);
805
bool table_is_used(TABLE *table, bool wait_for_name_lock);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
806 807
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);
808 809
void execute_init_command(THD *thd, sys_var_str *init_command_var,
			  rw_lock_t *var_mutex);
810 811
extern Field *not_found_field;
extern Field *view_ref_found;
812 813 814 815

enum find_item_error_report_type {REPORT_ALL_ERRORS, REPORT_EXCEPT_NOT_FOUND,
				  IGNORE_ERRORS, REPORT_EXCEPT_NON_UNIQUE,
                                  IGNORE_EXCEPT_NON_UNIQUE};
816
Field *
817 818 819 820
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);
821
Field *
822
find_field_in_table_ref(THD *thd, TABLE_LIST *table_list,
823 824 825
                        const char *name, uint length,
                        const char *item_name, const char *db_name,
                        const char *table_name, Item **ref,
826
                        bool check_privileges, bool allow_rowid,
827 828
                        uint *cached_field_index_ptr,
                        bool register_tree_change, TABLE_LIST **actual_table);
829
Field *
830 831
find_field_in_table(THD *thd, TABLE *table, const char *name, uint length,
                    bool allow_rowid, uint *cached_field_index_ptr);
832

833
#ifdef HAVE_OPENSSL
834
#include <openssl/des.h>
835 836
struct st_des_keyblock
{
monty@narttu.mysql.fi's avatar
monty@narttu.mysql.fi committed
837
  DES_cblock key1, key2, key3;
838 839 840
};
struct st_des_keyschedule
{
841
  DES_key_schedule ks1, ks2, ks3;
842
};
843
extern char *des_key_file;
844
extern struct st_des_keyschedule des_keyschedule[10];
845
extern uint des_default_key;
846 847
extern pthread_mutex_t LOCK_des_key_file;
bool load_des_key_file(const char *file_name);
848
#endif /* HAVE_OPENSSL */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
849

monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
850
/* sql_do.cc */
851
bool mysql_do(THD *thd, List<Item> &values);
monty@hundin.mysql.fi's avatar
monty@hundin.mysql.fi committed
852

853 854 855
/* sql_analyse.h */
bool append_escaped(String *to_str, String *from_str);

venu@myvenu.com's avatar
venu@myvenu.com committed
856
/* sql_show.cc */
857 858
bool mysqld_show_open_tables(THD *thd,const char *wild);
bool mysqld_show_logs(THD *thd);
859 860
void append_identifier(THD *thd, String *packet, const char *name,
		       uint length);
861
int get_quote_char_for_identifier(THD *thd, const char *name, uint length);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
862
void mysqld_list_fields(THD *thd,TABLE_LIST *table, const char *wild);
monty@mysql.com's avatar
monty@mysql.com committed
863
int mysqld_dump_create_info(THD *thd, TABLE_LIST *table_list, int fd);
864 865
bool mysqld_show_create(THD *thd, TABLE_LIST *table_list);
bool mysqld_show_create_db(THD *thd, char *dbname, HA_CREATE_INFO *create);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
866 867 868 869

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);
870 871
int mysql_find_files(THD *thd,List<char> *files, const char *db,
                const char *path, const char *wild, bool dir);
872 873 874 875
bool mysqld_show_storage_engines(THD *thd);
bool mysqld_show_privileges(THD *thd);
bool mysqld_show_column_types(THD *thd);
bool mysqld_help (THD *thd, const char *text);
876
void calc_sum_of_all_status(STATUS_VAR *to);
877

878 879 880 881
void append_definer(THD *thd, String *buffer, const LEX_STRING *definer_user,
                    const LEX_STRING *definer_host);


882 883 884 885
/* information schema */
extern LEX_STRING information_schema_name;
LEX_STRING *make_lex_string(THD *thd, LEX_STRING *lex_str,
                            const char* str, uint length,
monty@mysql.com's avatar
monty@mysql.com committed
886
                            bool allocate_lex_string);
887 888 889 890 891 892 893 894 895 896 897
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);
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
898
bool get_schema_tables_result(JOIN *join);
899 900
#define is_schema_db(X) \
  !my_strcasecmp(system_charset_info, information_schema_name.str, (X))
901

902
/* sql_prepare.cc */
903 904

void mysql_stmt_prepare(THD *thd, const char *packet, uint packet_length);
905
void mysql_stmt_execute(THD *thd, char *packet, uint packet_length);
906
void mysql_stmt_close(THD *thd, char *packet);
907 908 909 910
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);
911
void mysql_stmt_reset(THD *thd, char *packet);
912
void mysql_stmt_get_longdata(THD *thd, char *pos, ulong packet_length);
913
void reinit_stmt_before_use(THD *thd, LEX *lex);
914

915
/* sql_handler.cc */
monty@mysql.com's avatar
monty@mysql.com committed
916
bool mysql_ha_open(THD *thd, TABLE_LIST *tables, bool reopen);
bell@sanja.is.com.ua's avatar
merge  
bell@sanja.is.com.ua committed
917
bool mysql_ha_close(THD *thd, TABLE_LIST *tables);
918 919
bool mysql_ha_read(THD *, TABLE_LIST *,enum enum_ha_read_modes,char *,
                   List<Item> *,enum ha_rkey_function,Item *,ha_rows,ha_rows);
920 921
int mysql_ha_flush(THD *thd, TABLE_LIST *tables, uint mode_flags,
                   bool is_locked);
922 923 924 925
/* 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
926

bk@work.mysql.com's avatar
bk@work.mysql.com committed
927
/* sql_base.cc */
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
928
#define TMP_TABLE_KEY_EXTRA 8
bk@work.mysql.com's avatar
bk@work.mysql.com committed
929
void set_item_name(Item *item,char *pos,uint length);
monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
930
bool add_field_to_list(THD *thd, char *field_name, enum enum_field_types type,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
931
		       char *length, char *decimal,
932
		       uint type_modifier,
933
		       Item *default_value, Item *on_update_value,
bar@bar.mysql.r18.ru's avatar
bar@bar.mysql.r18.ru committed
934
		       LEX_STRING *comment,
935 936
		       char *change, List<String> *interval_list,
		       CHARSET_INFO *cs,
937
		       uint uint_geom_type);
938 939 940 941 942 943 944
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);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
945
void store_position_for_column(const char *name);
monty@mysql.com's avatar
monty@mysql.com committed
946
bool add_to_list(THD *thd, SQL_LIST &list,Item *group,bool asc);
947 948 949
bool push_new_name_resolution_context(THD *thd,
                                      TABLE_LIST *left_op,
                                      TABLE_LIST *right_op);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
950
void add_join_on(TABLE_LIST *b,Item *expr);
951
void add_join_natural(TABLE_LIST *a,TABLE_LIST *b,List<String> *using_fields);
952
bool add_proc_to_list(THD *thd, Item *item);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
953
TABLE *unlink_open_table(THD *thd,TABLE *list,TABLE *find);
954 955 956
void update_non_unique_table_error(TABLE_LIST *update,
                                   const char *operation,
                                   TABLE_LIST *duplicate);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
957 958

SQL_SELECT *make_select(TABLE *head, table_map const_tables,
monty@mysql.com's avatar
monty@mysql.com committed
959 960
			table_map read_tables, COND *conds,
                        bool allow_null_cond,  int *error);
961
extern Item **not_found_item;
962
Item ** find_item_in_list(Item *item, List<Item> &items, uint *counter,
963 964
                          find_item_error_report_type report_error,
                          bool *unaliased);
965
bool get_key_map_from_key_list(key_map *map, TABLE *table,
966
                               List<String> *index_list);
967
bool insert_fields(THD *thd, Name_resolution_context *context,
968
		   const char *db_name, const char *table_name,
969 970
                   List_iterator<Item> *it, bool any_privileges);
bool setup_tables(THD *thd, Name_resolution_context *context,
971 972
                  List<TABLE_LIST> *from_clause, TABLE_LIST *tables,
                  Item **conds, TABLE_LIST **leaves, bool select_insert);
973 974 975 976 977 978 979
bool setup_tables_and_check_access (THD *thd, 
                                    Name_resolution_context *context,
                                    List<TABLE_LIST> *from_clause, 
                                    TABLE_LIST *tables, Item **conds, 
                                    TABLE_LIST **leaves, 
                                    bool select_insert,
                                    ulong want_access);
980 981
int setup_wild(THD *thd, TABLE_LIST *tables, List<Item> &fields,
	       List<Item> *sum_func_list, uint wild_num);
982
bool setup_fields(THD *thd, Item** ref_pointer_array,
983 984
                  List<Item> &item, bool set_query_id,
                  List<Item> *sum_func_list, bool allow_sum_func);
985 986 987 988 989 990 991 992 993 994 995 996
inline bool setup_fields_with_no_wrap(THD *thd, Item **ref_pointer_array,
                                     List<Item> &item, bool set_query_id,
                                     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;
}
997 998
int setup_conds(THD *thd, TABLE_LIST *tables, TABLE_LIST *leaves,
		COND **conds);
999 1000
int setup_ftfuncs(SELECT_LEX* select);
int init_ftfuncs(THD *thd, SELECT_LEX* select, bool no_order);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1001
void wait_for_refresh(THD *thd);
1002
int open_tables(THD *thd, TABLE_LIST **tables, uint *counter, uint flags);
1003
int simple_open_n_lock_tables(THD *thd,TABLE_LIST *tables);
1004
bool open_and_lock_tables(THD *thd,TABLE_LIST *tables);
1005
bool open_normal_and_derived_tables(THD *thd, TABLE_LIST *tables, uint flags);
1006
int lock_tables(THD *thd, TABLE_LIST *tables, uint counter, bool *need_reopen);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1007 1008 1009 1010 1011
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);
1012
bool close_thread_table(THD *thd, TABLE **table_ptr);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1013
void close_temporary_tables(THD *thd);
1014
void close_tables_for_reopen(THD *thd, TABLE_LIST **tables);
1015
TABLE_LIST *find_table_in_list(TABLE_LIST *table,
1016
                               st_table_list *TABLE_LIST::*link,
1017 1018
                               const char *db_name,
                               const char *table_name);
1019
TABLE_LIST *unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1020 1021
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);
monty@mysql.com's avatar
monty@mysql.com committed
1022
void close_temporary(TABLE *table, bool delete_table);
1023
bool rename_temporary_table(THD* thd, TABLE *table, const char *new_db,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1024
			    const char *table_name);
1025
void remove_db_from_cache(const char *db);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1026
void flush_tables();
1027
bool is_equal(const LEX_STRING *a, const LEX_STRING *b);
monty@mysql.com's avatar
monty@mysql.com committed
1028 1029

/* bits for last argument to remove_table_from_cache() */
1030 1031 1032 1033
#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
1034
bool remove_table_from_cache(THD *thd, const char *db, const char *table,
mronstrom@mysql.com's avatar
mronstrom@mysql.com committed
1035
                             uint flags);
monty@mysql.com's avatar
monty@mysql.com committed
1036

1037
bool close_cached_tables(THD *thd, bool wait_for_refresh, TABLE_LIST *tables);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1038
void copy_field_from_tmp_record(Field *field,int offset);
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
1039 1040
bool fill_record(THD *thd, Field **field, List<Item> &values,
                 bool ignore_errors);
1041 1042 1043 1044 1045 1046 1047 1048 1049 1050
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);
1051
OPEN_TABLE_LIST *list_open_tables(THD *thd, const char *db, const char *wild);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1052

1053 1054 1055 1056
inline TABLE_LIST *find_table_in_global_list(TABLE_LIST *table,
                                             const char *db_name,
                                             const char *table_name)
{
1057
  return find_table_in_list(table, &TABLE_LIST::next_global,
1058 1059 1060 1061 1062 1063 1064
                            db_name, table_name);
}

inline TABLE_LIST *find_table_in_local_list(TABLE_LIST *table,
                                            const char *db_name,
                                            const char *table_name)
{
1065
  return find_table_in_list(table, &TABLE_LIST::next_local,
1066 1067 1068 1069
                            db_name, table_name);
}


bk@work.mysql.com's avatar
bk@work.mysql.com committed
1070 1071 1072 1073
/* sql_calc.cc */
bool eval_const_cond(COND *cond);

/* sql_load.cc */
bell@sanja.is.com.ua's avatar
merge  
bell@sanja.is.com.ua committed
1074
bool mysql_load(THD *thd, sql_exchange *ex, TABLE_LIST *table_list,
1075 1076 1077
	        List<Item> &fields_vars, List<Item> &set_fields,
                List<Item> &set_values_list,
                enum enum_duplicates handle_duplicates, bool ignore,
1078
                bool local_file);
1079
int write_record(THD *thd, TABLE *table, COPY_INFO *info);
1080 1081 1082 1083

/* sql_manager.cc */
/* bits set in manager_status */
#define MANAGER_BERKELEY_LOG_CLEANUP    (1L << 0)
1084
extern ulong volatile manager_status;
1085
extern bool volatile manager_thread_in_use, mqh_used;
1086
extern pthread_t manager_thread;
1087
pthread_handler_t handle_manager(void *arg);
1088

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1089 1090 1091 1092
/* sql_test.cc */
#ifndef DBUG_OFF
void print_where(COND *cond,const char *info);
void print_cached_tables(void);
1093
void TEST_filesort(SORT_FIELD *sortorder,uint s_length);
1094 1095
void print_plan(JOIN* join,uint idx, double record_count, double read_time,
                double current_read_time, const char *info);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1096
#endif
1097
void mysql_print_status();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1098 1099
/* key.cc */
int find_ref_key(TABLE *form,Field *field, uint *offset);
1100 1101 1102
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);
1103
bool key_cmp_if_same(TABLE *form,const byte *key,uint index,uint key_length);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1104 1105
void key_unpack(String *to,TABLE *form,uint index);
bool check_if_key_used(TABLE *table, uint idx, List<Item> &fields);
1106
int key_cmp(KEY_PART_INFO *key_part, const byte *key, uint key_length);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1107

1108
bool init_errmessage(void);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1109
void sql_perror(const char *message);
rburnett@build.mysql.com's avatar
rburnett@build.mysql.com committed
1110

1111 1112 1113 1114
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, ...);
rburnett@build.mysql.com's avatar
rburnett@build.mysql.com committed
1115 1116 1117



1118 1119
bool fn_format_relative_to_data_home(my_string to, const char *name,
				     const char *dir, const char *extension);
1120 1121
File open_binlog(IO_CACHE *log, const char *log_file_name,
                 const char **errmsg);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1122

1123
/* mysqld.cc */
1124
extern void MYSQLerror(const char*);
1125
void refresh_status(THD *thd);
1126

1127 1128 1129
/* item_func.cc */
extern bool check_reserved_words(LEX_STRING *name);

1130
/* strfunc.cc */
1131
ulonglong find_set(TYPELIB *lib, const char *x, uint length, CHARSET_INFO *cs,
1132 1133
		   char **err_pos, uint *err_len, bool *set_warning);
uint find_type(TYPELIB *lib, const char *find, uint length, bool part_match);
1134
uint find_type2(TYPELIB *lib, const char *find, uint length, CHARSET_INFO *cs);
1135
void unhex_type2(TYPELIB *lib);
1136 1137 1138
uint check_word(TYPELIB *lib, const char *val, const char *end,
		const char **end_of_word);

1139

1140
bool is_keyword(const char *name, uint len);
hf@deer.(none)'s avatar
hf@deer.(none) committed
1141

1142 1143
#define MY_DB_OPT_FILE "db.opt"
bool load_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create);
1144 1145
bool my_dbopt_init(void);
void my_dbopt_cleanup(void);
1146
void my_dbopt_free(void);
hf@deer.(none)'s avatar
hf@deer.(none) committed
1147

1148 1149 1150 1151 1152
/*
  External variables
*/

extern time_t start_time;
1153
extern char *mysql_data_home,server_version[SERVER_VERSION_LENGTH],
1154
	    mysql_real_data_home[], *opt_mysql_tmpdir, mysql_charsets_dir[],
1155
            def_ft_boolean_syntax[sizeof(ft_boolean_syntax)];
1156 1157
#define mysql_tmpdir (my_tmpdir(&mysql_tmpdir_list))
extern MY_TMPDIR mysql_tmpdir_list;
1158
extern const char *command_name[];
hf@deer.(none)'s avatar
hf@deer.(none) committed
1159
extern const char *first_keyword, *my_localhost, *delayed_user, *binary_keyword;
1160 1161
extern const char **errmesg;			/* Error messages */
extern const char *myisam_recover_options_str;
1162
extern const char *in_left_expr_name, *in_additional_cond;
1163
extern const char * const triggers_file_ext;
1164
extern const char * const trigname_file_ext;
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
1165 1166 1167 1168 1169 1170
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;
1171
extern char language[FN_REFLEN], reg_ext[FN_EXTLEN];
1172
extern char glob_hostname[FN_REFLEN], mysql_home[FN_REFLEN];
1173
extern char pidfile_name[FN_REFLEN], system_time_zone[30], *opt_init_file;
1174
extern char log_error_file[FN_REFLEN], *opt_tc_log_file;
1175
extern double log_10[32];
1176
extern ulonglong log_10_int[20];
1177
extern ulonglong keybuff_size;
1178
extern ulonglong thd_startup_options;
1179
extern ulong refresh_version,flush_version, thread_id;
1180
extern ulong binlog_cache_use, binlog_cache_disk_use;
1181 1182 1183 1184 1185
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;
1186 1187
extern ulong slave_open_temp_tables;
extern ulong query_cache_size, query_cache_min_res_unit;
1188
extern ulong slow_launch_threads, slow_launch_time;
1189
extern ulong table_cache_size;
1190
extern ulong max_connections,max_connect_errors, connect_timeout;
1191
extern ulong slave_net_timeout, slave_trans_retries;
1192
extern uint max_user_connections;
1193
extern ulong what_to_log,flush_time;
1194
extern ulong query_buff_size, thread_stack;
1195
extern ulong max_prepared_stmt_count, prepared_stmt_count;
1196
extern ulong binlog_cache_size, max_binlog_cache_size, open_files_limit;
1197 1198
extern ulong max_binlog_size, max_relay_log_size;
extern ulong rpl_recovery_rank, thread_cache_size;
1199
extern ulong back_log;
1200
extern ulong specialflag, current_pid;
1201
extern ulong expire_logs_days, sync_binlog_period, sync_binlog_counter;
1202 1203
extern ulong opt_tc_log_size, tc_log_max_pages_used, tc_log_page_size;
extern ulong tc_log_page_waits;
1204
extern my_bool relay_log_purge, opt_innodb_safe_binlog, opt_innodb;
1205
extern uint test_flags,select_errors,ha_open_options;
1206
extern uint protocol_version, mysqld_port, dropping_tables;
1207
extern uint delay_key_write_options, lower_case_table_names;
1208 1209
extern bool opt_endinfo, using_udf_functions;
extern my_bool locked_in_memory;
1210
extern bool opt_using_transactions, mysqld_embedded;
1211
extern bool using_update_log, opt_large_files, server_id_supplied;
1212
extern bool opt_log, opt_update_log, opt_bin_log, opt_slow_log, opt_error_log;
1213
extern my_bool opt_log_queries_not_using_indexes;
1214
extern bool opt_disable_networking, opt_skip_show_db;
1215
extern my_bool opt_character_set_client_handshake;
1216
extern bool volatile abort_loop, shutdown_in_progress, grant_option;
1217
extern bool mysql_proc_table_exists;
1218
extern uint volatile thread_count, thread_running, global_read_lock;
1219
extern my_bool opt_sql_bin_update, opt_safe_user_create, opt_no_mix_types;
1220
extern my_bool opt_safe_show_db, opt_local_infile;
1221
extern my_bool opt_slave_compressed_protocol, use_temp_pool;
1222
extern my_bool opt_readonly, lower_case_file_system;
1223
extern my_bool opt_enable_named_pipe, opt_sync_frm, opt_allow_suspicious_udfs;
1224
extern my_bool opt_secure_auth;
konstantin@mysql.com's avatar
konstantin@mysql.com committed
1225
extern my_bool opt_log_slow_admin_statements;
1226
extern my_bool sp_automatic_privileges, opt_noacl;
1227
extern my_bool opt_old_style_user_limits, trust_function_creators;
guilhem@mysql.com's avatar
guilhem@mysql.com committed
1228
extern uint opt_crash_binlog_innodb;
1229
extern char *shared_memory_base_name, *mysqld_unix_port;
kent@mysql.com's avatar
kent@mysql.com committed
1230
extern my_bool opt_enable_shared_memory;
1231
extern char *default_tz_name;
1232 1233
extern my_bool opt_large_pages;
extern uint opt_large_page_size;
1234

monty@mysql.com's avatar
monty@mysql.com committed
1235
extern MYSQL_LOG mysql_log,mysql_slow_log,mysql_bin_log;
1236
extern FILE *bootstrap_file;
1237
extern int bootstrap_error;
1238
extern FILE *stderror_file;
1239
extern pthread_key(MEM_ROOT**,THR_MALLOC);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1240 1241
extern pthread_mutex_t LOCK_mysql_create_db,LOCK_Acl,LOCK_open,
       LOCK_thread_count,LOCK_mapped_file,LOCK_user_locks, LOCK_status,
1242
       LOCK_error_log, LOCK_delayed_insert, LOCK_uuid_generator,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1243
       LOCK_delayed_status, LOCK_delayed_create, LOCK_crypt, LOCK_timezone,
1244
       LOCK_slave_list, LOCK_active_mi, LOCK_manager, LOCK_global_read_lock,
1245
       LOCK_global_system_variables, LOCK_user_conn,
1246
       LOCK_prepared_stmt_count,
monty@mysql.com's avatar
monty@mysql.com committed
1247
       LOCK_bytes_sent, LOCK_bytes_received;
1248 1249 1250
#ifdef HAVE_OPENSSL
extern pthread_mutex_t LOCK_des_key_file;
#endif
gluh@gluh.mysql.r18.ru's avatar
gluh@gluh.mysql.r18.ru committed
1251
extern rw_lock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave;
1252
extern pthread_cond_t COND_refresh, COND_thread_count, COND_manager;
monty@mysql.com's avatar
monty@mysql.com committed
1253
extern pthread_cond_t COND_global_read_lock;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1254
extern pthread_attr_t connection_attrib;
1255
extern I_List<THD> threads;
1256
extern I_List<NAMED_LIST> key_caches;
1257
extern MY_BITMAP temp_pool;
hf@deer.(none)'s avatar
SCRUM  
hf@deer.(none) committed
1258
extern String my_empty_string;
1259
extern const String my_null_string;
1260
extern SHOW_VAR init_vars[],status_vars[], internal_vars[];
1261
extern struct system_variables global_system_variables;
1262
extern struct system_variables max_system_variables;
1263
extern struct system_status_var global_status_var;
1264
extern struct rand_struct sql_rand;
1265

1266 1267
extern const char *opt_date_time_formats[];
extern KNOWN_DATE_TIME_FORMAT known_date_time_formats[];
1268

1269
extern String null_string;
1270 1271 1272 1273 1274
extern HASH open_cache;
extern TABLE *unused_tables;
extern I_List<i_string> binlog_do_db, binlog_ignore_db;
extern const char* any_db;
extern struct my_option my_long_options[];
1275
extern const LEX_STRING view_type;
1276

1277 1278
/* optional things, have_* variables */

acurtis@xiphis.org's avatar
acurtis@xiphis.org committed
1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312
#ifdef HAVE_INNOBASE_DB
extern handlerton innobase_hton;
#define have_innodb innobase_hton.state
#else
extern SHOW_COMP_OPTION have_innodb;
#endif
#ifdef HAVE_BERKELEY_DB
extern handlerton berkeley_hton;
#define have_berkeley_db berkeley_hton.state
#else
extern SHOW_COMP_OPTION have_berkeley_db;
#endif
#ifdef HAVE_EXAMPLE_DB
extern handlerton example_hton;
#define have_example_db example_hton.state
#else
extern SHOW_COMP_OPTION have_example_db;
#endif
#ifdef HAVE_ARCHIVE_DB
extern handlerton archive_hton;
#define have_archive_db archive_hton.state
#else
extern SHOW_COMP_OPTION have_archive_db;
#endif
#ifdef HAVE_CSV_DB
extern handlerton tina_hton;
#define have_csv_db tina_hton.state
#else
extern SHOW_COMP_OPTION have_csv_db;
#endif
#ifdef HAVE_FEDERATED_DB
extern handlerton federated_hton;
#define have_federated_db federated_hton.state
#else
1313
extern SHOW_COMP_OPTION have_federated_db;
acurtis@xiphis.org's avatar
acurtis@xiphis.org committed
1314 1315 1316 1317 1318
#endif
#ifdef HAVE_BLACKHOLE_DB
extern handlerton blackhole_hton;
#define have_blackhole_db blackhole_hton.state
#else
1319
extern SHOW_COMP_OPTION have_blackhole_db;
acurtis@xiphis.org's avatar
acurtis@xiphis.org committed
1320 1321 1322 1323 1324
#endif
#ifdef HAVE_NDBCLUSTER_DB
extern handlerton ndbcluster_hton;
#define have_ndbcluster ndbcluster_hton.state
#else
1325
extern SHOW_COMP_OPTION have_ndbcluster;
acurtis@xiphis.org's avatar
acurtis@xiphis.org committed
1326 1327 1328
#endif

extern SHOW_COMP_OPTION have_isam;
1329
extern SHOW_COMP_OPTION have_raid, have_openssl, have_symlink, have_dlopen;
1330
extern SHOW_COMP_OPTION have_query_cache;
1331
extern SHOW_COMP_OPTION have_geometry, have_rtree_keys;
monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
1332
extern SHOW_COMP_OPTION have_crypt;
1333
extern SHOW_COMP_OPTION have_compress;
1334

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1335 1336 1337 1338
#ifndef __WIN__
extern pthread_t signal_thread;
#endif

1339
#ifdef HAVE_OPENSSL
1340
extern struct st_VioSSLFd * ssl_acceptor_fd;
1341 1342
#endif /* HAVE_OPENSSL */

1343 1344
MYSQL_LOCK *mysql_lock_tables(THD *thd, TABLE **table, uint count,
                              uint flags, bool *need_reopen);
1345
/* mysql_lock_tables() and open_table() flags bits */
1346 1347
#define MYSQL_LOCK_IGNORE_GLOBAL_READ_LOCK      0x0001
#define MYSQL_LOCK_IGNORE_FLUSH                 0x0002
1348
#define MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN        0x0004
1349
#define MYSQL_OPEN_IGNORE_LOCKED_TABLES         0x0008
1350

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1351 1352 1353 1354 1355
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);
mronstrom@mysql.com's avatar
mronstrom@mysql.com committed
1356
bool mysql_lock_abort_for_thread(THD *thd, TABLE *table);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1357
MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);
1358 1359
TABLE_LIST *mysql_lock_have_duplicate(THD *thd, TABLE_LIST *needle,
                                      TABLE_LIST *haystack);
1360 1361
bool lock_global_read_lock(THD *thd);
void unlock_global_read_lock(THD *thd);
1362 1363
bool wait_if_global_read_lock(THD *thd, bool abort_on_refresh,
                              bool is_not_commit);
1364
void start_waiting_global_read_lock(THD *thd);
1365
bool make_global_read_lock_block_commit(THD *thd);
1366 1367
bool set_protect_against_global_read_lock(void);
void unset_protect_against_global_read_lock(void);
1368
void broadcast_refresh(void);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1369

1370
/* Lock based on name */
1371
int lock_and_wait_for_table_name(THD *thd, TABLE_LIST *table_list);
1372 1373 1374
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);
1375 1376
bool lock_table_names(THD *thd, TABLE_LIST *table_list);
void unlock_table_names(THD *thd, TABLE_LIST *table_list,
monty@mysql.com's avatar
monty@mysql.com committed
1377
			TABLE_LIST *last_table);
1378

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1379 1380 1381 1382

/* old unireg functions */

void unireg_init(ulong options);
1383
void unireg_end(void);
1384
bool mysql_create_frm(THD *thd, my_string file_name,
monty@mysql.com's avatar
monty@mysql.com committed
1385
                      const char *db, const char *table,
1386 1387 1388
		      HA_CREATE_INFO *create_info,
		      List<create_field> &create_field,
		      uint key_count,KEY *key_info,handler *db_type);
1389
int rea_create_table(THD *thd, my_string file_name,
monty@mysql.com's avatar
monty@mysql.com committed
1390
                     const char *db, const char *table,
1391
                     HA_CREATE_INFO *create_info,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1392 1393 1394 1395
		     List<create_field> &create_field,
		     uint key_count,KEY *key_info);
int format_number(uint inputflag,uint max_length,my_string pos,uint length,
		  my_string *errpos);
1396 1397
int openfrm(THD *thd, const char *name,const char *alias,uint filestat,
            uint prgflag, uint ha_open_flags, TABLE *outparam);
1398 1399
int readfrm(const char *name, const void** data, uint* length);
int writefrm(const char* name, const void* data, uint len);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1400 1401 1402 1403 1404 1405 1406 1407
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);
1408
my_time_t TIME_to_timestamp(THD *thd, const TIME *t, my_bool *not_exist);
1409
bool str_to_time_with_warn(const char *str,uint length,TIME *l_time);
1410 1411
timestamp_type str_to_datetime_with_warn(const char *str, uint length,
                                         TIME *l_time, uint flags);
1412
void localtime_to_TIME(TIME *to, struct tm *from);
gluh@gluh.mysql.r18.ru's avatar
gluh@gluh.mysql.r18.ru committed
1413
void calc_time_from_sec(TIME *to, long seconds, long microseconds);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1414

1415
void make_truncated_value_warning(THD *thd, const char *str_val,
1416 1417
				  uint str_length, timestamp_type time_type,
                                  const char *field_name);
1418 1419 1420 1421 1422 1423 1424 1425 1426
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);
1427 1428 1429 1430 1431 1432
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);
1433

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1434 1435 1436 1437
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,
1438
		      int use_record_cache, bool print_errors);
1439 1440
void init_read_record_idx(READ_RECORD *info, THD *thd, TABLE *table, 
                          bool print_error, uint idx);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1441
void end_read_record(READ_RECORD *info);
1442 1443 1444
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);
1445
void filesort_free_buffers(TABLE *table);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1446
void change_double_for_sort(double nr,byte *to);
1447
double my_double_round(double value, int dec, bool truncate);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1448 1449
int get_quick_record(SQL_SELECT *select);
int calc_weekday(long daynr,bool sunday_first_day_of_week);
1450
uint calc_week(TIME *l_time, uint week_behaviour, uint *year);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1451 1452
void find_date(char *pos,uint *vek,uint flag);
TYPELIB *convert_strings_to_array_type(my_string *typelibs, my_string *end);
1453
TYPELIB *typelib(MEM_ROOT *mem_root, List<String> &strings);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1454 1455 1456 1457
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);
1458
void append_unescaped(String *res, const char *pos, uint length);
1459
int create_frm(THD *thd, char *name, const char *db, const char *table,
1460
               uint reclength,uchar *fileinfo,
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1461 1462 1463
	       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);
1464
bool check_db_name(char *db);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1465 1466
bool check_column_name(const char *name);
bool check_table_name(const char *name, uint length);
1467
char *get_field(MEM_ROOT *mem, Field *field);
vva@eagle.mysql.r18.ru's avatar
vva@eagle.mysql.r18.ru committed
1468
bool get_field(MEM_ROOT *mem, Field *field, class String *res);
1469
int wild_case_compare(CHARSET_INFO *cs, const char *str,const char *wildstr);
1470

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1471 1472 1473 1474 1475 1476 1477 1478
/* 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);
1479

1480
/* sql_cache.cc */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1481 1482 1483 1484
extern bool sql_cache_init();
extern void sql_cache_free();
extern int sql_cache_hit(THD *thd, char *inBuf, uint length);

1485
/* item_func.cc */
1486 1487
Item *get_system_var(THD *thd, enum_var_type var_type, LEX_STRING name,
		     LEX_STRING component);
1488 1489
int get_var_with_binlog(THD *thd, enum_sql_command sql_command,
                        LEX_STRING &name, user_var_entry **out_entry);
1490 1491
/* log.cc */
bool flush_error_log(void);
1492

1493 1494 1495 1496
/* sql_list.cc */
void free_list(I_List <i_string_pair> *list);
void free_list(I_List <i_string> *list);

1497
/* sql_yacc.cc */
1498
extern int MYSQLparse(void *thd);
1499 1500 1501 1502 1503 1504

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

bell@sanja.is.com.ua's avatar
VIEW  
bell@sanja.is.com.ua committed
1505 1506
#include "sql_view.h"

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1507 1508
/* Some inline functions for more speed */

monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
1509
inline bool add_item_to_list(THD *thd, Item *item)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1510
{
1511
  return thd->lex->current_select->add_item_to_list(thd, item);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1512
}
monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
1513 1514

inline bool add_value_to_list(THD *thd, Item *value)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1515
{
1516
  return thd->lex->value_list.push_back(value);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1517
}
monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
1518 1519

inline bool add_order_to_list(THD *thd, Item *item, bool asc)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1520
{
1521
  return thd->lex->current_select->add_order_to_list(thd, item, asc);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1522
}
monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
1523 1524

inline bool add_group_to_list(THD *thd, Item *item, bool asc)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1525
{
1526
  return thd->lex->current_select->add_group_to_list(thd, item, asc);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1527
}
monty@mashka.mysql.fi's avatar
monty@mashka.mysql.fi committed
1528

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1529 1530 1531
inline void mark_as_null_row(TABLE *table)
{
  table->null_row=1;
1532
  table->status|=STATUS_NULL_ROW;
1533
  bfill(table->null_flags,table->s->null_bytes,255);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1534
}
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
1535

1536 1537 1538
inline void table_case_convert(char * name, uint length)
{
  if (lower_case_table_names)
1539 1540
    files_charset_info->cset->casedn(files_charset_info,
                                     name, length, name, length);
monty@narttu.mysql.fi's avatar
monty@narttu.mysql.fi committed
1541 1542
}

1543 1544 1545 1546
inline const char *table_case_name(HA_CREATE_INFO *info, const char *name)
{
  return ((lower_case_table_names == 2 && info->alias) ? info->alias : name);
}
monty@mysql.com's avatar
monty@mysql.com committed
1547

1548 1549 1550 1551 1552 1553 1554 1555
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;
}

bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
1556 1557 1558 1559 1560 1561
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);
bell@sanja.is.com.ua's avatar
bell@sanja.is.com.ua committed
1562

1563 1564 1565 1566 1567
Item * all_any_subquery_creator(Item *left_expr,
				chooser_compare_func_creator cmp,
				bool all,
				SELECT_LEX *select_lex);

1568 1569 1570 1571 1572 1573 1574 1575 1576
/*
  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
*/
monty@narttu.mysql.fi's avatar
monty@narttu.mysql.fi committed
1577

1578 1579 1580 1581
inline void setup_table_map(TABLE *table, TABLE_LIST *table_list, uint tablenr)
{
  table->used_fields= 0;
  table->const_table= 0;
1582
  table->null_row= 0;
1583
  table->status= STATUS_NO_RECORD;
1584
  table->keys_in_use_for_query= table->s->keys_in_use;
1585
  table->maybe_null= table_list->outer_join;
igor@rurik.mysql.com's avatar
igor@rurik.mysql.com committed
1586 1587 1588 1589 1590 1591
  TABLE_LIST *embedding= table_list->embedding;
  while (!table->maybe_null && embedding)
  {
    table->maybe_null= embedding->outer_join;
    embedding= embedding->embedding;
  }
1592 1593 1594 1595
  table->tablenr= tablenr;
  table->map= (table_map) 1 << tablenr;
  table->force_index= table_list->force_index;
}
1596

hf@deer.(none)'s avatar
SCRUM  
hf@deer.(none) committed
1597

1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613
/*
  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;
}

1614 1615 1616 1617 1618 1619 1620
/*
  is_user_table()
  return true if the table was created explicitly
*/

inline bool is_user_table(TABLE * table)
{
1621
  const char *name= table->s->table_name;
1622 1623
  return strncmp(name, tmp_file_prefix, tmp_file_prefix_length);
}
1624

1625 1626 1627 1628 1629 1630 1631 1632
/*
  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);
1633
bool check_stack_overrun(THD *thd, long margin, char *dummy);
1634 1635 1636
#else
#define unireg_abort(exit_code) DBUG_RETURN(exit_code)
inline void kill_delayed_threads(void) {}
1637
#define check_stack_overrun(A, B, C) 0
1638
#endif
pem@mysql.com's avatar
pem@mysql.com committed
1639

1640
#endif /* MYSQL_CLIENT */