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/* Copyright (C) 2000-2003 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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Mostly this file is used in the server. But a little part of it is used in
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mysqlbinlog too (definition of SELECT_DISTINCT and others).
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The consequence is that 90% of the file is wrapped in \#ifndef MYSQL_CLIENT,
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except the part which must be in the server and in the client.
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#include <my_global.h>
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#include <drizzle_version.h>
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#include <my_base.h> /* Needed by field.h */
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#include "sql_bitmap.h"
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#include "sql_array.h"
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#include "sql_plugin.h"
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#include "scheduler.h"
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#define _DTRACE_VERSION 1
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QT_ORDINARY -- ordinary SQL query.
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QT_IS -- SQL query to be shown in INFORMATION_SCHEMA (in utf8 and without
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character set introducers).
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/* TODO convert all these three maps to Bitmap classes */
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typedef uint64_t table_map; /* Used for table bits in join */
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typedef Bitmap<64> key_map; /* Used for finding keys */
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typedef Bitmap<((MAX_INDEXES+7)/8*8)> key_map; /* Used for finding keys */
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typedef uint32_t nesting_map; /* Used for flags of nesting constructs */
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Used to identify NESTED_JOIN structures within a join (applicable only to
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structures that have not been simplified away and embed more the one
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typedef uint64_t nested_join_map;
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typedef uint64_t query_id_t;
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extern query_id_t global_query_id;
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/* increment query_id and return it. */
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inline query_id_t next_query_id() { return global_query_id++; }
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/* useful constants */
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extern const key_map key_map_empty;
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extern key_map key_map_full; /* Should be threaded as const */
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extern const char *primary_key_name;
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#include "drizzle_com.h"
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void init_sql_alloc(MEM_ROOT *root, uint block_size, uint pre_alloc_size);
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void *sql_alloc(size_t);
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void *sql_calloc(size_t);
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char *sql_strdup(const char *str);
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char *sql_strmake(const char *str, size_t len);
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void *sql_memdup(const void * ptr, size_t size);
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void sql_element_free(void *ptr);
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char *sql_strmake_with_convert(const char *str, size_t arg_length,
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CHARSET_INFO *from_cs,
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size_t max_res_length,
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CHARSET_INFO *to_cs, size_t *result_length);
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uint kill_one_thread(THD *thd, ulong id, bool only_kill_query);
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void sql_kill(THD *thd, ulong id, bool only_kill_query);
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bool net_request_file(NET* net, const char* fname);
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char* query_table_status(THD *thd,const char *db,const char *table_name);
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#define x_free(A) { my_free((uchar*) (A),MYF(MY_WME | MY_FAE | MY_ALLOW_ZERO_PTR)); }
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#define safeFree(x) { if(x) { my_free((uchar*) x,MYF(0)); x = NULL; } }
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#define PREV_BITS(type,A) ((type) (((type) 1 << (A)) -1))
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#define all_bits_set(A,B) ((A) & (B) != (B))
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extern CHARSET_INFO *system_charset_info, *files_charset_info ;
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extern CHARSET_INFO *national_charset_info, *table_alias_charset;
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DERIVATION_IGNORABLE= 5,
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DERIVATION_COERCIBLE= 4,
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DERIVATION_SYSCONST= 3,
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DERIVATION_IMPLICIT= 2,
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DERIVATION_EXPLICIT= 0
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typedef struct my_locale_st
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const char *description;
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TYPELIB *month_names;
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TYPELIB *ab_month_names;
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TYPELIB *ab_day_names;
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my_locale_st(uint number_par,
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const char *name_par, const char *descr_par, bool is_ascii_par,
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TYPELIB *month_names_par, TYPELIB *ab_month_names_par,
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TYPELIB *day_names_par, TYPELIB *ab_day_names_par) :
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name(name_par), description(descr_par), is_ascii(is_ascii_par),
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month_names(month_names_par), ab_month_names(ab_month_names_par),
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day_names(day_names_par), ab_day_names(ab_day_names_par)
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extern MY_LOCALE my_locale_en_US;
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extern MY_LOCALE *my_locales[];
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extern MY_LOCALE *my_default_lc_time_names;
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MY_LOCALE *my_locale_by_name(const char *name);
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MY_LOCALE *my_locale_by_number(uint number);
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/*************************************************************************/
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Object_creation_ctx -- interface for creation context of database objects
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(views, stored routines, events, triggers). Creation context -- is a set
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of attributes, that should be fixed at the creation time and then be used
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each time the object is parsed or executed.
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class Object_creation_ctx
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Object_creation_ctx *set_n_backup(THD *thd);
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void restore_env(THD *thd, Object_creation_ctx *backup_ctx);
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Object_creation_ctx() {}
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virtual Object_creation_ctx *create_backup_ctx(THD *thd) const = 0;
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virtual void change_env(THD *thd) const = 0;
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virtual ~Object_creation_ctx()
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/*************************************************************************/
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Default_object_creation_ctx -- default implementation of
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class Default_object_creation_ctx : public Object_creation_ctx
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CHARSET_INFO *get_client_cs()
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CHARSET_INFO *get_connection_cl()
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return m_connection_cl;
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Default_object_creation_ctx(THD *thd);
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Default_object_creation_ctx(CHARSET_INFO *client_cs,
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CHARSET_INFO *connection_cl);
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virtual Object_creation_ctx *create_backup_ctx(THD *thd) const;
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virtual void change_env(THD *thd) const;
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client_cs stores the value of character_set_client session variable.
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The only character set attribute is used.
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Client character set is included into query context, because we save
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query in the original character set, which is client character set. So,
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in order to parse the query properly we have to switch client character
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CHARSET_INFO *m_client_cs;
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connection_cl stores the value of collation_connection session
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variable. Both character set and collation attributes are used.
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Connection collation is included into query context, becase it defines
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the character set and collation of text literals in internal
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representation of query (item-objects).
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CHARSET_INFO *m_connection_cl;
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Opening modes for open_temporary_table and open_table_from_share
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/***************************************************************************
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Configuration parameters
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****************************************************************************/
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#define ACL_CACHE_SIZE 256
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#define MAX_PASSWORD_LENGTH 32
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#define HOST_CACHE_SIZE 128
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#define MAX_ACCEPT_RETRY 10 // Test accept this many times
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#define MAX_FIELDS_BEFORE_HASH 32
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#define USER_VARS_HASH_SIZE 16
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#define TABLE_OPEN_CACHE_MIN 64
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#define TABLE_OPEN_CACHE_DEFAULT 64
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Value of 9236 discovered through binary search 2006-09-26 on Ubuntu Dapper
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Drake, libc6 2.3.6-0ubuntu2, Linux kernel 2.6.15-27-686, on x86. (Added
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100 bytes as reasonable buffer against growth and other environments'
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Feel free to raise this by the smallest amount you can to get the
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"execution_constants" test to pass.
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#define STACK_MIN_SIZE 12000 ///< Abort if less stack during eval.
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#define STACK_MIN_SIZE_FOR_OPEN 1024*80
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#define STACK_BUFF_ALLOC 352 ///< For stack overrun checks
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#ifndef MYSQLD_NET_RETRY_COUNT
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#define MYSQLD_NET_RETRY_COUNT 10 ///< Abort read after this many int.
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#define TEMP_POOL_SIZE 128
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#define QUERY_ALLOC_BLOCK_SIZE 8192
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#define QUERY_ALLOC_PREALLOC_SIZE 8192
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#define TRANS_ALLOC_BLOCK_SIZE 4096
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#define TRANS_ALLOC_PREALLOC_SIZE 4096
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#define RANGE_ALLOC_BLOCK_SIZE 4096
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#define ACL_ALLOC_BLOCK_SIZE 1024
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#define UDF_ALLOC_BLOCK_SIZE 1024
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#define TABLE_ALLOC_BLOCK_SIZE 1024
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#define BDB_LOG_ALLOC_BLOCK_SIZE 1024
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#define WARN_ALLOC_BLOCK_SIZE 2048
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#define WARN_ALLOC_PREALLOC_SIZE 1024
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#define PROFILE_ALLOC_BLOCK_SIZE 2048
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#define PROFILE_ALLOC_PREALLOC_SIZE 1024
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The following parameters is to decide when to use an extra cache to
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optimise seeks when reading a big table in sorted order
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#define MIN_FILE_LENGTH_TO_USE_ROW_CACHE (10L*1024*1024)
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#define MIN_ROWS_TO_USE_TABLE_CACHE 100
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#define MIN_ROWS_TO_USE_BULK_INSERT 100
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The following is used to decide if MySQL should use table scanning
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instead of reading with keys. The number says how many evaluation of the
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WHERE clause is comparable to reading one extra row from a table.
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#define TIME_FOR_COMPARE 5 // 5 compares == one read
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Number of comparisons of table rowids equivalent to reading one row from a
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#define TIME_FOR_COMPARE_ROWID (TIME_FOR_COMPARE*2)
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For sequential disk seeks the cost formula is:
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DISK_SEEK_BASE_COST + DISK_SEEK_PROP_COST * #blocks_to_skip
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The cost of average seek
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DISK_SEEK_BASE_COST + DISK_SEEK_PROP_COST*BLOCKS_IN_AVG_SEEK =1.0.
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#define DISK_SEEK_BASE_COST ((double)0.9)
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#define BLOCKS_IN_AVG_SEEK 128
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#define DISK_SEEK_PROP_COST ((double)0.1/BLOCKS_IN_AVG_SEEK)
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Number of rows in a reference table when refereed through a not unique key.
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This value is only used when we don't know anything about the key
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#define MATCHING_ROWS_IN_OTHER_TABLE 10
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/** Don't pack string keys shorter than this (if PACK_KEYS=1 isn't used). */
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#define KEY_DEFAULT_PACK_LENGTH 8
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/** Characters shown for the command in 'show processlist'. */
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#define PROCESS_LIST_WIDTH 100
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/* Characters shown for the command in 'information_schema.processlist' */
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#define PROCESS_LIST_INFO_WIDTH 65535
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#define PRECISION_FOR_DOUBLE 53
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#define PRECISION_FOR_FLOAT 24
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Default time to wait before aborting a new client connection
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that does not respond to "initial server greeting" timely
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#define CONNECT_TIMEOUT 10
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/* The following can also be changed from the command line */
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#define DEFAULT_CONCURRENCY 10
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#define FLUSH_TIME 0 /**< Don't flush tables */
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#define MAX_CONNECT_ERRORS 10 ///< errors before disabling host
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#define INTERRUPT_PRIOR 10
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#define CONNECT_PRIOR 9
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#define QUERY_PRIOR 6
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/* Bits from testflag */
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#define TEST_PRINT_CACHED_TABLES 1
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#define TEST_NO_KEY_GROUP 2
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#define TEST_MIT_THREAD 4
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#define TEST_BLOCKING 8
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#define TEST_KEEP_TMP_TABLES 16
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#define TEST_READCHECK 64 /**< Force use of readcheck */
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#define TEST_NO_EXTRA 128
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#define TEST_CORE_ON_SIGNAL 256 /**< Give core if signal */
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#define TEST_NO_STACKTRACE 512
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#define TEST_SIGINT 1024 /**< Allow sigint on threads */
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#define TEST_SYNCHRONIZATION 2048 /**< get server to do sleep in
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This is included in the server and in the client.
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Options for select set by the yacc parser (stored in lex->options).
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log_event.h defines OPTIONS_WRITTEN_TO_BIN_LOG to specify what THD
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options list are written into binlog. These options can NOT change their
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values, or it will break replication between version.
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context is encoded as following:
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SELECT - SELECT_LEX_NODE::options
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intern - neither. used only as
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func(..., select_node->options | thd->options | OPTION_XXX, ...)
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TODO: separate three contexts above, move them to separate bitfields.
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#define SELECT_DISTINCT (1ULL << 0) // SELECT, user
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#define SELECT_STRAIGHT_JOIN (1ULL << 1) // SELECT, user
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#define SELECT_DESCRIBE (1ULL << 2) // SELECT, user
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#define SELECT_SMALL_RESULT (1ULL << 3) // SELECT, user
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#define SELECT_BIG_RESULT (1ULL << 4) // SELECT, user
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#define OPTION_FOUND_ROWS (1ULL << 5) // SELECT, user
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#define SELECT_NO_JOIN_CACHE (1ULL << 7) // intern
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#define OPTION_BIG_TABLES (1ULL << 8) // THD, user
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#define OPTION_BIG_SELECTS (1ULL << 9) // THD, user
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#define OPTION_LOG_OFF (1ULL << 10) // THD, user
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#define OPTION_QUOTE_SHOW_CREATE (1ULL << 11) // THD, user, unused
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#define TMP_TABLE_ALL_COLUMNS (1ULL << 12) // SELECT, intern
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#define OPTION_WARNINGS (1ULL << 13) // THD, user
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#define OPTION_AUTO_IS_NULL (1ULL << 14) // THD, user, binlog
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#define OPTION_FOUND_COMMENT (1ULL << 15) // SELECT, intern, parser
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#define OPTION_SAFE_UPDATES (1ULL << 16) // THD, user
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#define OPTION_BUFFER_RESULT (1ULL << 17) // SELECT, user
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#define OPTION_BIN_LOG (1ULL << 18) // THD, user
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#define OPTION_NOT_AUTOCOMMIT (1ULL << 19) // THD, user
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#define OPTION_BEGIN (1ULL << 20) // THD, intern
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#define OPTION_TABLE_LOCK (1ULL << 21) // THD, intern
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#define OPTION_QUICK (1ULL << 22) // SELECT (for DELETE)
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#define OPTION_KEEP_LOG (1ULL << 23) // THD, user
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/* The following is used to detect a conflict with DISTINCT */
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#define SELECT_ALL (1ULL << 24) // SELECT, user, parser
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/** The following can be set when importing tables in a 'wrong order'
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to suppress foreign key checks */
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#define OPTION_NO_FOREIGN_KEY_CHECKS (1ULL << 26) // THD, user, binlog
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/** The following speeds up inserts to InnoDB tables by suppressing unique
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key checks in some cases */
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#define OPTION_RELAXED_UNIQUE_CHECKS (1ULL << 27) // THD, user, binlog
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#define SELECT_NO_UNLOCK (1ULL << 28) // SELECT, intern
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#define OPTION_SCHEMA_TABLE (1ULL << 29) // SELECT, intern
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/** Flag set if setup_tables already done */
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#define OPTION_SETUP_TABLES_DONE (1ULL << 30) // intern
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/** If not set then the thread will ignore all warnings with level notes. */
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#define OPTION_SQL_NOTES (1ULL << 31) // THD, user
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Force the used temporary table to be a MyISAM table (because we will use
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fulltext functions when reading from it.
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#define TMP_TABLE_FORCE_MYISAM (1ULL << 32)
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#define OPTION_PROFILING (1ULL << 33)
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Dont report errors for individual rows,
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But just report error on commit (or read ofcourse)
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#define OPTION_ALLOW_BATCH (1ULL << 33) // THD, intern (slave)
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Maximum length of time zone name that we support
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(Time zone name is char(64) in db). mysqlbinlog needs it.
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#define MAX_TIME_ZONE_NAME_LENGTH (NAME_LEN + 1)
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/* The rest of the file is included in the server only */
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/* Bits for different SQL modes modes (including ANSI mode) */
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#define MODE_REAL_AS_FLOAT 1
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#define MODE_PIPES_AS_CONCAT 2
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#define MODE_ANSI_QUOTES 4
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#define MODE_IGNORE_SPACE 8
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#define MODE_NOT_USED 16
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#define MODE_ONLY_FULL_GROUP_BY 32
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#define MODE_NO_UNSIGNED_SUBTRACTION 64
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#define MODE_NO_DIR_IN_CREATE 128
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#define MODE_POSTGRESQL 256
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#define MODE_ORACLE 512
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#define MODE_MSSQL 1024
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#define MODE_DB2 2048
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#define MODE_MAXDB 4096
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#define MODE_NO_KEY_OPTIONS 8192
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#define MODE_NO_TABLE_OPTIONS 16384
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#define MODE_NO_FIELD_OPTIONS 32768
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#define MODE_MYSQL323 65536L
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#define MODE_MYSQL40 (MODE_MYSQL323*2)
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#define MODE_ANSI (MODE_MYSQL40*2)
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#define MODE_NO_AUTO_VALUE_ON_ZERO (MODE_ANSI*2)
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#define MODE_NO_BACKSLASH_ESCAPES (MODE_NO_AUTO_VALUE_ON_ZERO*2)
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#define MODE_STRICT_TRANS_TABLES (MODE_NO_BACKSLASH_ESCAPES*2)
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#define MODE_STRICT_ALL_TABLES (MODE_STRICT_TRANS_TABLES*2)
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#define MODE_NO_ZERO_IN_DATE (MODE_STRICT_ALL_TABLES*2)
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#define MODE_NO_ZERO_DATE (MODE_NO_ZERO_IN_DATE*2)
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#define MODE_INVALID_DATES (MODE_NO_ZERO_DATE*2)
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#define MODE_ERROR_FOR_DIVISION_BY_ZERO (MODE_INVALID_DATES*2)
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#define MODE_TRADITIONAL (MODE_ERROR_FOR_DIVISION_BY_ZERO*2)
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#define MODE_NO_AUTO_CREATE_USER (MODE_TRADITIONAL*2)
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#define MODE_HIGH_NOT_PRECEDENCE (MODE_NO_AUTO_CREATE_USER*2)
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#define MODE_NO_ENGINE_SUBSTITUTION (MODE_HIGH_NOT_PRECEDENCE*2)
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#define MODE_PAD_CHAR_TO_FULL_LENGTH (1ULL << 31)
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/* @@optimizer_switch flags */
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#define OPTIMIZER_SWITCH_NO_MATERIALIZATION 1
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#define OPTIMIZER_SWITCH_NO_SEMIJOIN 2
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Replication uses 8 bytes to store SQL_MODE in the binary log. The day you
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use strictly more than 64 bits by adding one more define above, you should
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contact the replication team because the replication code should then be
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updated (to store more bytes on disk).
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NOTE: When adding new SQL_MODE types, make sure to also add them to
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the scripts used for creating the MySQL system tables
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in scripts/mysql_system_tables.sql and scripts/mysql_system_tables_fix.sql
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#define RAID_BLOCK_SIZE 1024
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#define MY_CHARSET_BIN_MB_MAXLEN 1
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#define UNCACHEABLE_DEPENDENT 1
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#define UNCACHEABLE_RAND 2
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#define UNCACHEABLE_SIDEEFFECT 4
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/// forcing to save JOIN for explain
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#define UNCACHEABLE_EXPLAIN 8
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/** Don't evaluate subqueries in prepare even if they're not correlated */
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#define UNCACHEABLE_PREPARE 16
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/* For uncorrelated SELECT in an UNION with some correlated SELECTs */
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#define UNCACHEABLE_UNITED 32
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/* Used to check GROUP BY list in the MODE_ONLY_FULL_GROUP_BY mode */
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#define UNDEF_POS (-1)
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/* BINLOG_DUMP options */
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#define BINLOG_DUMP_NON_BLOCK 1
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/* sql_show.cc:show_log_files() */
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#define SHOW_LOG_STATUS_FREE "FREE"
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#define SHOW_LOG_STATUS_INUSE "IN USE"
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void view_store_options(THD *thd, TABLE_LIST *table, String *buff);
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/* Options to add_table_to_list() */
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#define TL_OPTION_UPDATING 1
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#define TL_OPTION_FORCE_INDEX 2
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#define TL_OPTION_IGNORE_LEAVES 4
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#define TL_OPTION_ALIAS 8
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/* Some portable defines */
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#define portable_sizeof_char_ptr 8
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#define tmp_file_prefix "#sql" /**< Prefix for tmp tables */
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#define tmp_file_prefix_length 4
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/* Flags for calc_week() function. */
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#define WEEK_MONDAY_FIRST 1
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#define WEEK_FIRST_WEEKDAY 4
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#define STRING_BUFFER_USUAL_SIZE 80
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Some defines for exit codes for ::is_equal class functions.
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#define IS_EQUAL_NO 0
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#define IS_EQUAL_YES 1
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#define IS_EQUAL_PACK_LENGTH 2
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enum enum_parsing_place
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#define thd_proc_info(thd, msg) set_thd_proc_info(thd, msg, __func__, __FILE__, __LINE__)
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enum enum_check_fields
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CHECK_FIELD_ERROR_FOR_NULL
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/** Struct to handle simple linked lists. */
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typedef struct st_sql_list {
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st_sql_list() {} /* Remove gcc warning */
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inline void link_in_list(uchar *element,uchar **next_ptr)
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inline void save_and_clear(struct st_sql_list *save)
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inline void push_front(struct st_sql_list *save)
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*save->next= first; /* link current list last */
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elements+= save->elements;
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inline void push_back(struct st_sql_list *save)
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elements+= save->elements;
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extern pthread_key(THD*, THR_THD);
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inline THD *_current_thd(void)
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return (THD *)pthread_getspecific(THR_THD);
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#define current_thd _current_thd()
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The meat of thd_proc_info(THD*, char*), a macro that packs the last
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three calling-info parameters.
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const char *set_thd_proc_info(THD *thd, const char *info,
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const char *calling_func,
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const char *calling_file,
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const unsigned int calling_line);
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extern ulong server_id;
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typedef my_bool (*qc_engine_callback)(THD *thd, char *table_key,
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uint64_t *engine_data);
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#include "sql_string.h"
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#include "sql_list.h"
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#include "my_decimal.h"
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#include "sql_error.h"
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#include "field.h" /* Field definitions */
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#include "protocol.h"
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class user_var_entry;
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class Security_context;
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OPT_DEFAULT= 0, OPT_SESSION, OPT_GLOBAL
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typedef Comp_creator* (*chooser_compare_func_creator)(bool invert);
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extern my_decimal decimal_zero;
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void free_items(Item *item);
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void cleanup_items(Item *item);
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void close_thread_tables(THD *thd);
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bool multi_update_precheck(THD *thd, TABLE_LIST *tables);
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bool multi_delete_precheck(THD *thd, TABLE_LIST *tables);
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int mysql_multi_update_prepare(THD *thd);
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int mysql_multi_delete_prepare(THD *thd);
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bool mysql_insert_select_prepare(THD *thd);
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bool update_precheck(THD *thd, TABLE_LIST *tables);
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bool delete_precheck(THD *thd, TABLE_LIST *tables);
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bool insert_precheck(THD *thd, TABLE_LIST *tables);
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bool create_table_precheck(THD *thd, TABLE_LIST *tables,
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TABLE_LIST *create_table);
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int append_query_string(CHARSET_INFO *csinfo,
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String const *from, String *to);
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bool check_string_byte_length(LEX_STRING *str, const char *err_msg,
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uint max_byte_length);
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bool check_string_char_length(LEX_STRING *str, const char *err_msg,
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uint max_char_length, CHARSET_INFO *cs,
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bool check_identifier_name(LEX_STRING *str, uint max_char_length,
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uint err_code, const char *param_for_err_msg);
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inline bool check_identifier_name(LEX_STRING *str, uint err_code)
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return check_identifier_name(str, NAME_CHAR_LEN, err_code, "");
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inline bool check_identifier_name(LEX_STRING *str)
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return check_identifier_name(str, NAME_CHAR_LEN, 0, "");
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bool test_if_data_home_dir(const char *dir);
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bool parse_sql(THD *thd,
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class Lex_input_stream *lip,
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class Object_creation_ctx *creation_ctx);
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enum enum_mysql_completiontype {
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ROLLBACK_RELEASE=-2, ROLLBACK=1, ROLLBACK_AND_CHAIN=7,
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COMMIT_RELEASE=-1, COMMIT=0, COMMIT_AND_CHAIN=6
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bool begin_trans(THD *thd);
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bool end_active_trans(THD *thd);
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int end_trans(THD *thd, enum enum_mysql_completiontype completion);
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Item *negate_expression(THD *thd, Item *expr);
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int vprint_msg_to_log(enum loglevel level, const char *format, va_list args);
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void sql_print_error(const char *format, ...) ATTRIBUTE_FORMAT(printf, 1, 2);
743
void sql_print_warning(const char *format, ...) ATTRIBUTE_FORMAT(printf, 1, 2);
744
void sql_print_information(const char *format, ...)
745
ATTRIBUTE_FORMAT(printf, 1, 2);
746
typedef void (*sql_print_message_func)(const char *format, ...)
747
ATTRIBUTE_FORMAT(printf, 1, 2);
748
extern sql_print_message_func sql_print_message_handlers[];
750
int error_log_print(enum loglevel level, const char *format,
753
bool slow_log_print(THD *thd, const char *query, uint query_length,
754
uint64_t current_utime);
756
bool general_log_print(THD *thd, enum enum_server_command command,
757
const char *format,...);
759
bool general_log_write(THD *thd, enum enum_server_command command,
760
const char *query, uint query_length);
762
#include "sql_class.h"
763
#include "slave.h" // for tables_ok(), rpl_filter
766
#include "opt_range.h"
770
Error injector Macros to enable easy testing of recovery after failures
771
in various error cases.
773
#ifndef ERROR_INJECT_SUPPORT
775
#define ERROR_INJECT(x) 0
776
#define ERROR_INJECT_ACTION(x,action) 0
777
#define ERROR_INJECT_CRASH(x) 0
778
#define ERROR_INJECT_VALUE(x) 0
779
#define ERROR_INJECT_VALUE_ACTION(x,action) 0
780
#define ERROR_INJECT_VALUE_CRASH(x) 0
781
#define SET_ERROR_INJECT_VALUE(x)
785
inline bool check_and_unset_keyword(const char *dbug_str)
787
const char *extra_str= "-d,";
789
if (_db_strict_keyword_ (dbug_str))
791
strxmov(total_str, extra_str, dbug_str, NullS);
799
check_and_unset_inject_value(int value)
801
THD *thd= current_thd;
802
if (thd->error_inject_value == (uint)value)
804
thd->error_inject_value= 0;
813
These macros are used to insert macros from the application code.
814
The event that activates those error injections can be activated
816
SET SESSION dbug=+d,code;
818
After the error has been injected, the macros will automatically
819
remove the debug code, thus similar to using:
820
SET SESSION dbug=-d,code
823
ERROR_INJECT_CRASH will inject a crash of the MySQL Server if code
824
is set when macro is called. ERROR_INJECT_CRASH can be used in
825
if-statements, it will always return false unless of course it
826
crashes in which case it doesn't return at all.
828
ERROR_INJECT_ACTION will inject the action specified in the action
829
parameter of the macro, before performing the action the code will
830
be removed such that no more events occur. ERROR_INJECT_ACTION
831
can also be used in if-statements and always returns FALSE.
832
ERROR_INJECT can be used in a normal if-statement, where the action
833
part is performed in the if-block. The macro returns TRUE if the
834
error was activated and otherwise returns FALSE. If activated the
837
Sometimes it is necessary to perform error inject actions as a serie
838
of events. In this case one can use one variable on the THD object.
839
Thus one sets this value by using e.g. SET_ERROR_INJECT_VALUE(100).
840
Then one can later test for it by using ERROR_INJECT_CRASH_VALUE,
841
ERROR_INJECT_ACTION_VALUE and ERROR_INJECT_VALUE. This have the same
842
behaviour as the above described macros except that they use the
843
error inject value instead of a code used by debug macros.
845
#define SET_ERROR_INJECT_VALUE(x) \
846
current_thd->error_inject_value= (x)
847
#define ERROR_INJECT_ACTION(code, action) \
848
(check_and_unset_keyword(code) ? ((action), 0) : 0)
849
#define ERROR_INJECT(code) \
850
check_and_unset_keyword(code)
851
#define ERROR_INJECT_VALUE(value) \
852
check_and_unset_inject_value(value)
853
#define ERROR_INJECT_VALUE_ACTION(value,action) \
854
(check_and_unset_inject_value(value) ? (action) : 0)
855
#define ERROR_INJECT_VALUE_CRASH(value) \
856
ERROR_INJECT_VALUE_ACTION(value, (abort(), 0))
860
void write_bin_log(THD *thd, bool clear_error,
861
char const *query, ulong query_length);
864
int check_user(THD *thd, enum enum_server_command command,
865
const char *passwd, uint passwd_len, const char *db,
867
pthread_handler_t handle_one_connection(void *arg);
868
bool init_new_connection_handler_thread();
869
void reset_mqh(LEX_USER *lu, bool get_them);
870
bool check_mqh(THD *thd, uint check_command);
871
void time_out_user_resource_limits(THD *thd, USER_CONN *uc);
872
void decrease_user_connections(USER_CONN *uc);
873
void thd_init_client_charset(THD *thd, uint cs_number);
874
bool setup_connection_thread_globals(THD *thd);
875
bool login_connection(THD *thd);
876
void prepare_new_connection_state(THD* thd);
877
void end_connection(THD *thd);
880
int mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create, bool silent);
881
bool mysql_alter_db(THD *thd, const char *db, HA_CREATE_INFO *create);
882
bool mysql_rm_db(THD *thd,char *db,bool if_exists, bool silent);
883
bool mysql_upgrade_db(THD *thd, LEX_STRING *old_db);
884
void mysql_binlog_send(THD* thd, char* log_ident, my_off_t pos, ushort flags);
885
void mysql_client_binlog_statement(THD *thd);
886
bool mysql_rm_table(THD *thd,TABLE_LIST *tables, my_bool if_exists,
887
my_bool drop_temporary);
888
int mysql_rm_table_part2(THD *thd, TABLE_LIST *tables, bool if_exists,
889
bool drop_temporary, bool drop_view, bool log_query);
890
bool quick_rm_table(handlerton *base,const char *db,
891
const char *table_name, uint flags);
892
void close_cached_table(THD *thd, TABLE *table);
893
bool mysql_rename_tables(THD *thd, TABLE_LIST *table_list, bool silent);
894
bool do_rename(THD *thd, TABLE_LIST *ren_table, char *new_db,
895
char *new_table_name, char *new_table_alias,
898
bool mysql_change_db(THD *thd, const LEX_STRING *new_db_name,
901
bool mysql_opt_change_db(THD *thd,
902
const LEX_STRING *new_db_name,
903
LEX_STRING *saved_db_name,
905
bool *cur_db_changed);
907
void mysql_parse(THD *thd, const char *inBuf, uint length,
908
const char ** semicolon);
910
bool mysql_test_parse_for_slave(THD *thd,char *inBuf,uint length);
911
bool is_update_query(enum enum_sql_command command);
912
bool alloc_query(THD *thd, const char *packet, uint packet_length);
913
void mysql_init_select(LEX *lex);
914
void mysql_reset_thd_for_next_command(THD *thd);
915
bool mysql_new_select(LEX *lex, bool move_down);
916
void create_select_for_variable(const char *var_name);
917
void mysql_init_multi_delete(LEX *lex);
918
bool multi_delete_set_locks_and_link_aux_tables(LEX *lex);
919
void init_max_user_conn(void);
920
void init_update_queries(void);
921
void free_max_user_conn(void);
922
pthread_handler_t handle_bootstrap(void *arg);
923
int mysql_execute_command(THD *thd);
924
bool do_command(THD *thd);
925
bool dispatch_command(enum enum_server_command command, THD *thd,
926
char* packet, uint packet_length);
927
void log_slow_statement(THD *thd);
928
bool check_dup(const char *db, const char *name, TABLE_LIST *tables);
929
bool compare_record(TABLE *table);
930
bool append_file_to_dir(THD *thd, const char **filename_ptr,
931
const char *table_name);
932
void wait_while_table_is_used(THD *thd, TABLE *table,
933
enum ha_extra_function function);
934
bool table_cache_init(void);
935
void table_cache_free(void);
936
bool table_def_init(void);
937
void table_def_free(void);
938
void assign_new_table_id(TABLE_SHARE *share);
939
uint cached_open_tables(void);
940
uint cached_table_definitions(void);
941
void kill_mysql(void);
942
void close_connection(THD *thd, uint errcode, bool lock);
943
bool reload_cache(THD *thd, ulong options, TABLE_LIST *tables, bool *write_to_binlog);
944
bool check_table_access(THD *thd, ulong want_access, TABLE_LIST *tables,
946
bool any_combination_of_privileges_will_do,
949
#endif /* MYSQL_SERVER */
950
#if defined MYSQL_SERVER || defined INNODB_COMPATIBILITY_HOOKS
951
bool check_global_access(THD *thd, ulong want_access);
952
#endif /* MYSQL_SERVER || INNODB_COMPATIBILITY_HOOKS */
956
General routine to change field->ptr of a NULL-terminated array of Field
957
objects. Useful when needed to call val_int, val_str or similar and the
958
field data is not in table->record[0] but in some other structure.
959
set_key_field_ptr changes all fields of an index using a key_info object.
960
All methods presume that there is at least one field to change.
963
void set_field_ptr(Field **ptr, const uchar *new_buf, const uchar *old_buf);
964
void set_key_field_ptr(KEY *key_info, const uchar *new_buf,
965
const uchar *old_buf);
967
bool mysql_checksum_table(THD* thd, TABLE_LIST* table_list,
968
HA_CHECK_OPT* check_opt);
969
bool mysql_check_table(THD* thd, TABLE_LIST* table_list,
970
HA_CHECK_OPT* check_opt);
971
bool mysql_repair_table(THD* thd, TABLE_LIST* table_list,
972
HA_CHECK_OPT* check_opt);
973
bool mysql_analyze_table(THD* thd, TABLE_LIST* table_list,
974
HA_CHECK_OPT* check_opt);
975
bool mysql_optimize_table(THD* thd, TABLE_LIST* table_list,
976
HA_CHECK_OPT* check_opt);
977
bool mysql_assign_to_keycache(THD* thd, TABLE_LIST* table_list,
978
LEX_STRING *key_cache_name);
979
bool mysql_preload_keys(THD* thd, TABLE_LIST* table_list);
980
int reassign_keycache_tables(THD* thd, KEY_CACHE *src_cache,
981
KEY_CACHE *dst_cache);
982
TABLE *create_virtual_tmp_table(THD *thd, List<Create_field> &field_list);
984
bool mysql_xa_recover(THD *thd);
986
bool check_simple_select();
988
SORT_FIELD * make_unireg_sortorder(ORDER *order, uint *length,
989
SORT_FIELD *sortorder);
990
int setup_order(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
991
List<Item> &fields, List <Item> &all_fields, ORDER *order);
992
int setup_group(THD *thd, Item **ref_pointer_array, TABLE_LIST *tables,
993
List<Item> &fields, List<Item> &all_fields, ORDER *order,
994
bool *hidden_group_fields);
995
bool fix_inner_refs(THD *thd, List<Item> &all_fields, SELECT_LEX *select,
996
Item **ref_pointer_array);
998
bool handle_select(THD *thd, LEX *lex, select_result *result,
999
ulong setup_tables_done_option);
1000
bool mysql_select(THD *thd, Item ***rref_pointer_array,
1001
TABLE_LIST *tables, uint wild_num, List<Item> &list,
1002
COND *conds, uint og_num, ORDER *order, ORDER *group,
1003
Item *having, ORDER *proc_param, uint64_t select_type,
1004
select_result *result, SELECT_LEX_UNIT *unit,
1005
SELECT_LEX *select_lex);
1006
void free_underlaid_joins(THD *thd, SELECT_LEX *select);
1007
bool mysql_explain_union(THD *thd, SELECT_LEX_UNIT *unit,
1008
select_result *result);
1009
int mysql_explain_select(THD *thd, SELECT_LEX *sl, char const *type,
1010
select_result *result);
1011
bool mysql_union(THD *thd, LEX *lex, select_result *result,
1012
SELECT_LEX_UNIT *unit, ulong setup_tables_done_option);
1013
bool mysql_handle_derived(LEX *lex, bool (*processor)(THD *thd,
1015
TABLE_LIST *table));
1016
bool mysql_derived_prepare(THD *thd, LEX *lex, TABLE_LIST *t);
1017
bool mysql_derived_filling(THD *thd, LEX *lex, TABLE_LIST *t);
1018
Field *create_tmp_field(THD *thd, TABLE *table,Item *item, Item::Type type,
1019
Item ***copy_func, Field **from_field,
1021
bool group, bool modify_item,
1022
bool table_cant_handle_bit_fields,
1023
bool make_copy_field,
1024
uint convert_blob_length);
1025
void sp_prepare_create_field(THD *thd, Create_field *sql_field);
1026
int prepare_create_field(Create_field *sql_field,
1028
int *timestamps, int *timestamps_with_niladic,
1029
int64_t table_flags);
1030
bool mysql_create_table(THD *thd,const char *db, const char *table_name,
1031
HA_CREATE_INFO *create_info,
1032
Alter_info *alter_info,
1033
bool tmp_table, uint select_field_count);
1034
bool mysql_create_table_no_lock(THD *thd, const char *db,
1035
const char *table_name,
1036
HA_CREATE_INFO *create_info,
1037
Alter_info *alter_info,
1038
bool tmp_table, uint select_field_count);
1040
bool mysql_alter_table(THD *thd, char *new_db, char *new_name,
1041
HA_CREATE_INFO *create_info,
1042
TABLE_LIST *table_list,
1043
Alter_info *alter_info,
1044
uint order_num, ORDER *order, bool ignore);
1045
bool mysql_recreate_table(THD *thd, TABLE_LIST *table_list);
1046
bool mysql_create_like_table(THD *thd, TABLE_LIST *table,
1047
TABLE_LIST *src_table,
1048
HA_CREATE_INFO *create_info);
1049
bool mysql_rename_table(handlerton *base, const char *old_db,
1050
const char * old_name, const char *new_db,
1051
const char * new_name, uint flags);
1052
bool mysql_prepare_update(THD *thd, TABLE_LIST *table_list,
1053
Item **conds, uint order_num, ORDER *order);
1054
int mysql_update(THD *thd,TABLE_LIST *tables,List<Item> &fields,
1055
List<Item> &values,COND *conds,
1056
uint order_num, ORDER *order, ha_rows limit,
1057
enum enum_duplicates handle_duplicates, bool ignore);
1058
bool mysql_multi_update(THD *thd, TABLE_LIST *table_list,
1059
List<Item> *fields, List<Item> *values,
1060
COND *conds, uint64_t options,
1061
enum enum_duplicates handle_duplicates, bool ignore,
1062
SELECT_LEX_UNIT *unit, SELECT_LEX *select_lex);
1063
bool mysql_prepare_insert(THD *thd, TABLE_LIST *table_list, TABLE *table,
1064
List<Item> &fields, List_item *values,
1065
List<Item> &update_fields,
1066
List<Item> &update_values, enum_duplicates duplic,
1067
COND **where, bool select_insert,
1068
bool check_fields, bool abort_on_warning);
1069
bool mysql_insert(THD *thd,TABLE_LIST *table,List<Item> &fields,
1070
List<List_item> &values, List<Item> &update_fields,
1071
List<Item> &update_values, enum_duplicates flag,
1073
int check_that_all_fields_are_given_values(THD *thd, TABLE *entry,
1074
TABLE_LIST *table_list);
1075
void prepare_triggers_for_insert_stmt(TABLE *table);
1076
int mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds);
1077
bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
1078
SQL_LIST *order, ha_rows rows, uint64_t options,
1079
bool reset_auto_increment);
1080
bool mysql_truncate(THD *thd, TABLE_LIST *table_list, bool dont_send_ok);
1081
bool mysql_create_or_drop_trigger(THD *thd, TABLE_LIST *tables, bool create);
1082
uint create_table_def_key(THD *thd, char *key, TABLE_LIST *table_list,
1084
TABLE_SHARE *get_table_share(THD *thd, TABLE_LIST *table_list, char *key,
1085
uint key_length, uint db_flags, int *error);
1086
void release_table_share(TABLE_SHARE *share, enum release_type type);
1087
TABLE_SHARE *get_cached_table_share(const char *db, const char *table_name);
1088
TABLE *open_ltable(THD *thd, TABLE_LIST *table_list, thr_lock_type update,
1090
TABLE *open_table(THD *thd, TABLE_LIST *table_list, MEM_ROOT* mem,
1091
bool *refresh, uint flags);
1092
bool name_lock_locked_table(THD *thd, TABLE_LIST *tables);
1093
bool reopen_name_locked_table(THD* thd, TABLE_LIST* table_list, bool link_in);
1094
TABLE *table_cache_insert_placeholder(THD *thd, const char *key,
1096
bool lock_table_name_if_not_cached(THD *thd, const char *db,
1097
const char *table_name, TABLE **table);
1098
TABLE *find_locked_table(THD *thd, const char *db,const char *table_name);
1099
void detach_merge_children(TABLE *table, bool clear_refs);
1100
bool fix_merge_after_open(TABLE_LIST *old_child_list, TABLE_LIST **old_last,
1101
TABLE_LIST *new_child_list, TABLE_LIST **new_last);
1102
bool reopen_table(TABLE *table);
1103
bool reopen_tables(THD *thd,bool get_locks,bool in_refresh);
1104
void close_data_files_and_morph_locks(THD *thd, const char *db,
1105
const char *table_name);
1106
void close_handle_and_leave_table_as_lock(TABLE *table);
1107
bool open_new_frm(THD *thd, TABLE_SHARE *share, const char *alias,
1108
uint db_stat, uint prgflag,
1109
uint ha_open_flags, TABLE *outparam,
1110
TABLE_LIST *table_desc, MEM_ROOT *mem_root);
1111
bool wait_for_tables(THD *thd);
1112
bool table_is_used(TABLE *table, bool wait_for_name_lock);
1113
TABLE *drop_locked_tables(THD *thd,const char *db, const char *table_name);
1114
void abort_locked_tables(THD *thd,const char *db, const char *table_name);
1115
void execute_init_command(THD *thd, sys_var_str *init_command_var,
1116
rw_lock_t *var_mutex);
1117
extern Field *not_found_field;
1118
extern Field *view_ref_found;
1120
enum find_item_error_report_type {REPORT_ALL_ERRORS, REPORT_EXCEPT_NOT_FOUND,
1121
IGNORE_ERRORS, REPORT_EXCEPT_NON_UNIQUE,
1122
IGNORE_EXCEPT_NON_UNIQUE};
1124
find_field_in_tables(THD *thd, Item_ident *item,
1125
TABLE_LIST *first_table, TABLE_LIST *last_table,
1126
Item **ref, find_item_error_report_type report_error,
1127
bool check_privileges, bool register_tree_change);
1129
find_field_in_table_ref(THD *thd, TABLE_LIST *table_list,
1130
const char *name, uint length,
1131
const char *item_name, const char *db_name,
1132
const char *table_name, Item **ref,
1133
bool check_privileges, bool allow_rowid,
1134
uint *cached_field_index_ptr,
1135
bool register_tree_change, TABLE_LIST **actual_table);
1137
find_field_in_table(THD *thd, TABLE *table, const char *name, uint length,
1138
bool allow_rowid, uint *cached_field_index_ptr);
1140
find_field_in_table_sef(TABLE *table, const char *name);
1142
#endif /* MYSQL_SERVER */
1146
bool mysql_do(THD *thd, List<Item> &values);
1149
bool append_escaped(String *to_str, String *from_str);
1152
bool mysqld_show_open_tables(THD *thd,const char *wild);
1153
bool mysqld_show_logs(THD *thd);
1154
void append_identifier(THD *thd, String *packet, const char *name,
1156
#endif /* MYSQL_SERVER */
1157
#if defined MYSQL_SERVER || defined INNODB_COMPATIBILITY_HOOKS
1158
int get_quote_char_for_identifier(THD *thd, const char *name, uint length);
1159
#endif /* MYSQL_SERVER || INNODB_COMPATIBILITY_HOOKS */
1161
void mysqld_list_fields(THD *thd,TABLE_LIST *table, const char *wild);
1162
int mysqld_dump_create_info(THD *thd, TABLE_LIST *table_list, int fd);
1163
bool mysqld_show_create(THD *thd, TABLE_LIST *table_list);
1164
bool mysqld_show_create_db(THD *thd, char *dbname, HA_CREATE_INFO *create);
1166
void mysqld_list_processes(THD *thd,const char *user,bool verbose);
1167
int mysqld_show_status(THD *thd);
1168
int mysqld_show_variables(THD *thd,const char *wild);
1169
bool mysqld_show_storage_engines(THD *thd);
1170
bool mysqld_show_authors(THD *thd);
1171
bool mysqld_show_contributors(THD *thd);
1172
bool mysqld_show_privileges(THD *thd);
1173
bool mysqld_show_column_types(THD *thd);
1174
bool mysqld_help (THD *thd, const char *text);
1175
void calc_sum_of_all_status(STATUS_VAR *to);
1177
void append_definer(THD *thd, String *buffer, const LEX_STRING *definer_user,
1178
const LEX_STRING *definer_host);
1180
int add_status_vars(SHOW_VAR *list);
1181
void remove_status_vars(SHOW_VAR *list);
1182
void init_status_vars();
1183
void free_status_vars();
1184
void reset_status_vars();
1186
/* information schema */
1187
extern LEX_STRING INFORMATION_SCHEMA_NAME;
1189
extern LEX_STRING MYSQL_SCHEMA_NAME;
1190
extern LEX_STRING GENERAL_LOG_NAME;
1191
extern LEX_STRING SLOW_LOG_NAME;
1193
extern const LEX_STRING partition_keywords[];
1194
ST_SCHEMA_TABLE *find_schema_table(THD *thd, const char* table_name);
1195
ST_SCHEMA_TABLE *get_schema_table(enum enum_schema_tables schema_table_idx);
1196
int prepare_schema_table(THD *thd, LEX *lex, Table_ident *table_ident,
1197
enum enum_schema_tables schema_table_idx);
1198
int make_schema_select(THD *thd, SELECT_LEX *sel,
1199
enum enum_schema_tables schema_table_idx);
1200
int mysql_schema_table(THD *thd, LEX *lex, TABLE_LIST *table_list);
1201
bool get_schema_tables_result(JOIN *join,
1202
enum enum_schema_table_state executed_place);
1203
enum enum_schema_tables get_schema_table_idx(ST_SCHEMA_TABLE *schema_table);
1205
#define is_schema_db(X) \
1206
!my_strcasecmp(system_charset_info, INFORMATION_SCHEMA_NAME.str, (X))
1208
/* sql_prepare.cc */
1210
void mysql_stmt_prepare(THD *thd, const char *packet, uint packet_length);
1211
void mysql_stmt_execute(THD *thd, char *packet, uint packet_length);
1212
void mysql_stmt_close(THD *thd, char *packet);
1213
void mysql_sql_stmt_prepare(THD *thd);
1214
void mysql_sql_stmt_execute(THD *thd);
1215
void mysql_sql_stmt_close(THD *thd);
1216
void mysql_stmt_fetch(THD *thd, char *packet, uint packet_length);
1217
void mysql_stmt_reset(THD *thd, char *packet);
1218
void mysql_stmt_get_longdata(THD *thd, char *pos, ulong packet_length);
1219
void reinit_stmt_before_use(THD *thd, LEX *lex);
1221
/* sql_handler.cc */
1222
bool mysql_ha_open(THD *thd, TABLE_LIST *tables, bool reopen);
1223
bool mysql_ha_close(THD *thd, TABLE_LIST *tables);
1224
bool mysql_ha_read(THD *, TABLE_LIST *,enum enum_ha_read_modes,char *,
1225
List<Item> *,enum ha_rkey_function,Item *,ha_rows,ha_rows);
1226
void mysql_ha_flush(THD *thd);
1227
void mysql_ha_rm_tables(THD *thd, TABLE_LIST *tables, bool is_locked);
1228
void mysql_ha_cleanup(THD *thd);
1231
#define TMP_TABLE_KEY_EXTRA 8
1232
void set_item_name(Item *item,char *pos,uint length);
1233
bool add_field_to_list(THD *thd, LEX_STRING *field_name, enum enum_field_types type,
1234
char *length, char *decimal,
1236
enum column_format_type column_format,
1237
Item *default_value, Item *on_update_value,
1238
LEX_STRING *comment,
1239
char *change, List<String> *interval_list,
1241
Create_field * new_create_field(THD *thd, char *field_name, enum_field_types type,
1242
char *length, char *decimals,
1244
Item *default_value, Item *on_update_value,
1245
LEX_STRING *comment, char *change,
1246
List<String> *interval_list, CHARSET_INFO *cs);
1247
void store_position_for_column(const char *name);
1248
bool add_to_list(THD *thd, SQL_LIST &list,Item *group,bool asc);
1249
bool push_new_name_resolution_context(THD *thd,
1250
TABLE_LIST *left_op,
1251
TABLE_LIST *right_op);
1252
void add_join_on(TABLE_LIST *b,Item *expr);
1253
void add_join_natural(TABLE_LIST *a,TABLE_LIST *b,List<String> *using_fields,
1255
bool add_proc_to_list(THD *thd, Item *item);
1256
void unlink_open_table(THD *thd, TABLE *find, bool unlock);
1257
void drop_open_table(THD *thd, TABLE *table, const char *db_name,
1258
const char *table_name);
1259
void update_non_unique_table_error(TABLE_LIST *update,
1260
const char *operation,
1261
TABLE_LIST *duplicate);
1263
SQL_SELECT *make_select(TABLE *head, table_map const_tables,
1264
table_map read_tables, COND *conds,
1265
bool allow_null_cond, int *error);
1266
extern Item **not_found_item;
1269
A set of constants used for checking non aggregated fields and sum
1270
functions mixture in the ONLY_FULL_GROUP_BY_MODE.
1272
#define NON_AGG_FIELD_USED 1
1273
#define SUM_FUNC_USED 2
1276
This enumeration type is used only by the function find_item_in_list
1277
to return the info on how an item has been resolved against a list
1278
of possibly aliased items.
1279
The item can be resolved:
1280
- against an alias name of the list's element (RESOLVED_AGAINST_ALIAS)
1281
- against non-aliased field name of the list (RESOLVED_WITH_NO_ALIAS)
1282
- against an aliased field name of the list (RESOLVED_BEHIND_ALIAS)
1283
- ignoring the alias name in cases when SQL requires to ignore aliases
1284
(e.g. when the resolved field reference contains a table name or
1285
when the resolved item is an expression) (RESOLVED_IGNORING_ALIAS)
1287
enum enum_resolution_type {
1289
RESOLVED_IGNORING_ALIAS,
1290
RESOLVED_BEHIND_ALIAS,
1291
RESOLVED_WITH_NO_ALIAS,
1292
RESOLVED_AGAINST_ALIAS
1294
Item ** find_item_in_list(Item *item, List<Item> &items, uint *counter,
1295
find_item_error_report_type report_error,
1296
enum_resolution_type *resolution);
1297
bool get_key_map_from_key_list(key_map *map, TABLE *table,
1298
List<String> *index_list);
1299
bool insert_fields(THD *thd, Name_resolution_context *context,
1300
const char *db_name, const char *table_name,
1301
List_iterator<Item> *it, bool any_privileges);
1302
bool setup_tables(THD *thd, Name_resolution_context *context,
1303
List<TABLE_LIST> *from_clause, TABLE_LIST *tables,
1304
TABLE_LIST **leaves, bool select_insert);
1305
bool setup_tables_and_check_access(THD *thd,
1306
Name_resolution_context *context,
1307
List<TABLE_LIST> *from_clause,
1309
TABLE_LIST **leaves,
1310
bool select_insert);
1311
int setup_wild(THD *thd, TABLE_LIST *tables, List<Item> &fields,
1312
List<Item> *sum_func_list, uint wild_num);
1313
bool setup_fields(THD *thd, Item** ref_pointer_array,
1314
List<Item> &item, enum_mark_columns mark_used_columns,
1315
List<Item> *sum_func_list, bool allow_sum_func);
1316
inline bool setup_fields_with_no_wrap(THD *thd, Item **ref_pointer_array,
1318
enum_mark_columns mark_used_columns,
1319
List<Item> *sum_func_list,
1320
bool allow_sum_func)
1323
thd->lex->select_lex.no_wrap_view_item= true;
1324
res= setup_fields(thd, ref_pointer_array, item, mark_used_columns, sum_func_list,
1326
thd->lex->select_lex.no_wrap_view_item= false;
1329
int setup_conds(THD *thd, TABLE_LIST *tables, TABLE_LIST *leaves,
1331
int setup_ftfuncs(SELECT_LEX* select);
1332
int init_ftfuncs(THD *thd, SELECT_LEX* select, bool no_order);
1333
void wait_for_condition(THD *thd, pthread_mutex_t *mutex,
1334
pthread_cond_t *cond);
1335
int open_tables(THD *thd, TABLE_LIST **tables, uint *counter, uint flags);
1336
/* open_and_lock_tables with optional derived handling */
1337
int open_and_lock_tables_derived(THD *thd, TABLE_LIST *tables, bool derived);
1338
/* simple open_and_lock_tables without derived handling */
1339
inline int simple_open_n_lock_tables(THD *thd, TABLE_LIST *tables)
1341
return open_and_lock_tables_derived(thd, tables, false);
1343
/* open_and_lock_tables with derived handling */
1344
inline int open_and_lock_tables(THD *thd, TABLE_LIST *tables)
1346
return open_and_lock_tables_derived(thd, tables, true);
1348
/* simple open_and_lock_tables without derived handling for single table */
1349
TABLE *open_n_lock_single_table(THD *thd, TABLE_LIST *table_l,
1350
thr_lock_type lock_type);
1351
bool open_normal_and_derived_tables(THD *thd, TABLE_LIST *tables, uint flags);
1352
int lock_tables(THD *thd, TABLE_LIST *tables, uint counter, bool *need_reopen);
1353
int decide_logging_format(THD *thd, TABLE_LIST *tables);
1354
TABLE *open_temporary_table(THD *thd, const char *path, const char *db,
1355
const char *table_name, bool link_in_list,
1356
open_table_mode open_mode);
1357
bool rm_temporary_table(handlerton *base, char *path, bool frm_only);
1358
void free_io_cache(TABLE *entry);
1359
void intern_close_table(TABLE *entry);
1360
bool close_thread_table(THD *thd, TABLE **table_ptr);
1361
void close_temporary_tables(THD *thd);
1362
void close_tables_for_reopen(THD *thd, TABLE_LIST **tables);
1363
TABLE_LIST *find_table_in_list(TABLE_LIST *table,
1364
TABLE_LIST *TABLE_LIST::*link,
1365
const char *db_name,
1366
const char *table_name);
1367
TABLE_LIST *unique_table(THD *thd, TABLE_LIST *table, TABLE_LIST *table_list,
1369
TABLE *find_temporary_table(THD *thd, const char *db, const char *table_name);
1370
TABLE *find_temporary_table(THD *thd, TABLE_LIST *table_list);
1371
int drop_temporary_table(THD *thd, TABLE_LIST *table_list);
1372
void close_temporary_table(THD *thd, TABLE *table, bool free_share,
1374
void close_temporary(TABLE *table, bool free_share, bool delete_table);
1375
bool rename_temporary_table(THD* thd, TABLE *table, const char *new_db,
1376
const char *table_name);
1377
void remove_db_from_cache(const char *db);
1378
void flush_tables();
1379
bool is_equal(const LEX_STRING *a, const LEX_STRING *b);
1380
char *make_default_log_name(char *buff,const char* log_ext);
1382
/* bits for last argument to remove_table_from_cache() */
1383
#define RTFC_NO_FLAG 0x0000
1384
#define RTFC_OWNED_BY_THD_FLAG 0x0001
1385
#define RTFC_WAIT_OTHER_THREAD_FLAG 0x0002
1386
#define RTFC_CHECK_KILLED_FLAG 0x0004
1387
bool remove_table_from_cache(THD *thd, const char *db, const char *table,
1390
#define NORMAL_PART_NAME 0
1391
#define TEMP_PART_NAME 1
1392
#define RENAMED_PART_NAME 2
1393
void create_partition_name(char *out, const char *in1,
1394
const char *in2, uint name_variant,
1396
void create_subpartition_name(char *out, const char *in1,
1397
const char *in2, const char *in3,
1400
void mem_alloc_error(size_t size);
1402
enum ddl_log_entry_code
1405
DDL_LOG_EXECUTE_CODE:
1406
This is a code that indicates that this is a log entry to
1407
be executed, from this entry a linked list of log entries
1408
can be found and executed.
1410
An entry to be executed in a linked list from an execute log
1412
DDL_IGNORE_LOG_ENTRY_CODE:
1413
An entry that is to be ignored
1415
DDL_LOG_EXECUTE_CODE = 'e',
1416
DDL_LOG_ENTRY_CODE = 'l',
1417
DDL_IGNORE_LOG_ENTRY_CODE = 'i'
1420
enum ddl_log_action_code
1423
The type of action that a DDL_LOG_ENTRY_CODE entry is to
1425
DDL_LOG_DELETE_ACTION:
1427
DDL_LOG_RENAME_ACTION:
1429
DDL_LOG_REPLACE_ACTION:
1430
Rename an entity after removing the previous entry with the
1431
new name, that is replace this entry.
1433
DDL_LOG_DELETE_ACTION = 'd',
1434
DDL_LOG_RENAME_ACTION = 'r',
1435
DDL_LOG_REPLACE_ACTION = 's'
1439
typedef struct st_ddl_log_entry
1442
const char *from_name;
1443
const char *handler_name;
1446
enum ddl_log_entry_code entry_type;
1447
enum ddl_log_action_code action_type;
1449
Most actions have only one phase. REPLACE does however have two
1450
phases. The first phase removes the file with the new name if
1451
there was one there before and the second phase renames the
1452
old name to the new name.
1457
typedef struct st_ddl_log_memory_entry
1460
struct st_ddl_log_memory_entry *next_log_entry;
1461
struct st_ddl_log_memory_entry *prev_log_entry;
1462
struct st_ddl_log_memory_entry *next_active_log_entry;
1463
} DDL_LOG_MEMORY_ENTRY;
1466
bool write_ddl_log_entry(DDL_LOG_ENTRY *ddl_log_entry,
1467
DDL_LOG_MEMORY_ENTRY **active_entry);
1468
bool write_execute_ddl_log_entry(uint first_entry,
1470
DDL_LOG_MEMORY_ENTRY **active_entry);
1471
bool deactivate_ddl_log_entry(uint entry_no);
1472
void release_ddl_log_memory_entry(DDL_LOG_MEMORY_ENTRY *log_entry);
1473
bool sync_ddl_log();
1474
void release_ddl_log();
1475
void execute_ddl_log_recovery();
1476
bool execute_ddl_log_entry(THD *thd, uint first_entry);
1478
extern pthread_mutex_t LOCK_gdl;
1480
#define WFRM_WRITE_SHADOW 1
1481
#define WFRM_INSTALL_SHADOW 2
1482
#define WFRM_PACK_FRM 4
1483
#define WFRM_KEEP_SHARE 8
1485
/* Functions to work with system tables. */
1486
bool open_system_tables_for_read(THD *thd, TABLE_LIST *table_list,
1487
Open_tables_state *backup);
1488
void close_system_tables(THD *thd, Open_tables_state *backup);
1489
TABLE *open_system_table_for_update(THD *thd, TABLE_LIST *one_table);
1491
bool close_cached_tables(THD *thd, TABLE_LIST *tables, bool have_lock,
1492
bool wait_for_refresh, bool wait_for_placeholders);
1493
bool close_cached_connection_tables(THD *thd, bool wait_for_refresh,
1494
LEX_STRING *connect_string,
1495
bool have_lock= false);
1496
void copy_field_from_tmp_record(Field *field,int offset);
1497
bool fill_record(THD * thd, List<Item> &fields, List<Item> &values, bool ignore_errors);
1498
bool fill_record(THD *thd, Field **field, List<Item> &values, bool ignore_errors);
1499
OPEN_TABLE_LIST *list_open_tables(THD *thd, const char *db, const char *wild);
1501
inline TABLE_LIST *find_table_in_global_list(TABLE_LIST *table,
1502
const char *db_name,
1503
const char *table_name)
1505
return find_table_in_list(table, &TABLE_LIST::next_global,
1506
db_name, table_name);
1509
inline TABLE_LIST *find_table_in_local_list(TABLE_LIST *table,
1510
const char *db_name,
1511
const char *table_name)
1513
return find_table_in_list(table, &TABLE_LIST::next_local,
1514
db_name, table_name);
1519
bool eval_const_cond(COND *cond);
1522
int mysql_load(THD *thd, sql_exchange *ex, TABLE_LIST *table_list,
1523
List<Item> &fields_vars, List<Item> &set_fields,
1524
List<Item> &set_values_list,
1525
enum enum_duplicates handle_duplicates, bool ignore,
1527
int write_record(THD *thd, TABLE *table, COPY_INFO *info);
1531
void print_where(COND *cond,const char *info, enum_query_type query_type);
1532
void print_cached_tables(void);
1533
void TEST_filesort(SORT_FIELD *sortorder,uint s_length);
1534
void print_plan(JOIN* join,uint idx, double record_count, double read_time,
1535
double current_read_time, const char *info);
1536
void print_keyuse_array(DYNAMIC_ARRAY *keyuse_array);
1537
void dump_TABLE_LIST_graph(SELECT_LEX *select_lex, TABLE_LIST* tl);
1538
void mysql_print_status();
1541
int find_ref_key(KEY *key, uint key_count, uchar *record, Field *field,
1542
uint *key_length, uint *keypart);
1543
void key_copy(uchar *to_key, uchar *from_record, KEY *key_info, uint key_length);
1544
void key_restore(uchar *to_record, uchar *from_key, KEY *key_info,
1546
void key_zero_nulls(uchar *tuple, KEY *key_info);
1547
bool key_cmp_if_same(TABLE *form,const uchar *key,uint index,uint key_length);
1548
void key_unpack(String *to,TABLE *form,uint index);
1549
bool is_key_used(TABLE *table, uint idx, const MY_BITMAP *fields);
1550
int key_cmp(KEY_PART_INFO *key_part, const uchar *key, uint key_length);
1551
extern "C" int key_rec_cmp(void *key_info, uchar *a, uchar *b);
1553
bool init_errmessage(void);
1554
#endif /* MYSQL_SERVER */
1555
void sql_perror(const char *message);
1557
bool fn_format_relative_to_data_home(char * to, const char *name,
1558
const char *dir, const char *extension);
1560
File open_binlog(IO_CACHE *log, const char *log_file_name,
1561
const char **errmsg);
1564
extern void MYSQLerror(const char*);
1565
void refresh_status(THD *thd);
1566
my_bool mysql_rm_tmp_tables(void);
1567
void handle_connection_in_main_thread(THD *thd);
1568
void create_thread_to_handle_connection(THD *thd);
1569
void unlink_thd(THD *thd);
1570
bool one_thread_per_connection_end(THD *thd, bool put_in_cache);
1571
void flush_thread_cache();
1574
extern bool check_reserved_words(LEX_STRING *name);
1575
extern enum_field_types agg_field_type(Item **items, uint nitems);
1578
uint64_t find_set(TYPELIB *lib, const char *x, uint length, CHARSET_INFO *cs,
1579
char **err_pos, uint *err_len, bool *set_warning);
1580
uint find_type(const TYPELIB *lib, const char *find, uint length,
1582
uint find_type2(const TYPELIB *lib, const char *find, uint length,
1584
void unhex_type2(TYPELIB *lib);
1585
uint check_word(TYPELIB *lib, const char *val, const char *end,
1586
const char **end_of_word);
1587
int find_string_in_array(LEX_STRING * const haystack, LEX_STRING * const needle,
1588
CHARSET_INFO * const cs);
1591
bool is_keyword(const char *name, uint len);
1593
#define MY_DB_OPT_FILE "db.opt"
1594
bool my_database_names_init(void);
1595
void my_database_names_free(void);
1596
bool check_db_dir_existence(const char *db_name);
1597
bool load_db_opt(THD *thd, const char *path, HA_CREATE_INFO *create);
1598
bool load_db_opt_by_name(THD *thd, const char *db_name,
1599
HA_CREATE_INFO *db_create_info);
1600
CHARSET_INFO *get_default_db_collation(THD *thd, const char *db_name);
1601
bool my_dbopt_init(void);
1602
void my_dbopt_cleanup(void);
1603
extern int creating_database; // How many database locks are made
1604
extern int creating_table; // How many mysql_create_table() are running
1610
extern time_t server_start_time, flush_status_time;
1611
#endif /* MYSQL_SERVER */
1612
#if defined MYSQL_SERVER || defined INNODB_COMPATIBILITY_HOOKS
1613
extern uint mysql_data_home_len;
1614
extern char *mysql_data_home,server_version[SERVER_VERSION_LENGTH],
1615
mysql_real_data_home[], mysql_unpacked_real_data_home[];
1616
extern CHARSET_INFO *character_set_filesystem;
1617
#endif /* MYSQL_SERVER || INNODB_COMPATIBILITY_HOOKS */
1619
extern char *opt_mysql_tmpdir, mysql_charsets_dir[];
1621
#define mysql_tmpdir (my_tmpdir(&mysql_tmpdir_list))
1622
extern MY_TMPDIR mysql_tmpdir_list;
1623
extern const LEX_STRING command_name[];
1624
extern const char *first_keyword, *my_localhost, *delayed_user, *binary_keyword;
1625
extern const char **errmesg; /* Error messages */
1626
extern const char *myisam_recover_options_str;
1627
extern const char *in_left_expr_name, *in_additional_cond, *in_having_cond;
1628
extern const char * const TRG_EXT;
1629
extern const char * const TRN_EXT;
1630
extern Eq_creator eq_creator;
1631
extern Ne_creator ne_creator;
1632
extern Gt_creator gt_creator;
1633
extern Lt_creator lt_creator;
1634
extern Ge_creator ge_creator;
1635
extern Le_creator le_creator;
1636
extern char language[FN_REFLEN];
1637
#endif /* MYSQL_SERVER */
1638
#if defined MYSQL_SERVER || defined INNODB_COMPATIBILITY_HOOKS
1639
extern char reg_ext[FN_EXTLEN];
1640
extern uint reg_ext_length;
1641
#endif /* MYSQL_SERVER || INNODB_COMPATIBILITY_HOOKS */
1643
extern char glob_hostname[FN_REFLEN], mysql_home[FN_REFLEN];
1644
extern char pidfile_name[FN_REFLEN], system_time_zone[30], *opt_init_file;
1645
extern char log_error_file[FN_REFLEN], *opt_tc_log_file;
1646
extern const double log_10[309];
1647
extern uint64_t log_10_int[20];
1648
extern uint64_t keybuff_size;
1649
extern uint64_t thd_startup_options;
1650
extern ulong thread_id;
1651
extern ulong binlog_cache_use, binlog_cache_disk_use;
1652
extern ulong aborted_threads,aborted_connects;
1653
extern ulong slave_open_temp_tables;
1654
extern ulong slow_launch_threads, slow_launch_time;
1655
extern ulong table_cache_size, table_def_size;
1656
extern ulong max_connections,max_connect_errors, connect_timeout;
1657
extern bool slave_allow_batching;
1658
extern ulong slave_net_timeout, slave_trans_retries;
1659
extern uint max_user_connections;
1660
extern ulong what_to_log,flush_time;
1661
extern ulong query_buff_size;
1662
extern ulong max_prepared_stmt_count, prepared_stmt_count;
1663
extern ulong binlog_cache_size, max_binlog_cache_size, open_files_limit;
1664
extern ulong max_binlog_size, max_relay_log_size;
1665
extern ulong opt_binlog_rows_event_max_size;
1666
extern ulong rpl_recovery_rank, thread_cache_size, thread_pool_size;
1667
extern ulong back_log;
1668
#endif /* MYSQL_SERVER */
1669
#if defined MYSQL_SERVER || defined INNODB_COMPATIBILITY_HOOKS
1670
extern ulong specialflag;
1671
#endif /* MYSQL_SERVER || INNODB_COMPATIBILITY_HOOKS */
1673
extern ulong current_pid;
1674
extern ulong expire_logs_days, sync_binlog_period, sync_binlog_counter;
1675
extern ulong opt_tc_log_size, tc_log_max_pages_used, tc_log_page_size;
1676
extern ulong tc_log_page_waits;
1677
extern bool relay_log_purge;
1678
extern my_bool opt_innodb_safe_binlog, opt_innodb;
1679
extern uint test_flags,select_errors,ha_open_options;
1680
extern uint protocol_version, mysqld_port, dropping_tables;
1681
extern uint delay_key_write_options;
1682
#endif /* MYSQL_SERVER */
1683
#if defined MYSQL_SERVER || defined INNODB_COMPATIBILITY_HOOKS
1684
extern uint lower_case_table_names;
1685
#endif /* MYSQL_SERVER || INNODB_COMPATIBILITY_HOOKS */
1687
extern bool opt_endinfo, using_udf_functions;
1688
extern bool locked_in_memory;
1689
extern bool opt_using_transactions;
1690
#endif /* MYSQL_SERVER */
1691
#if defined MYSQL_SERVER || defined INNODB_COMPATIBILITY_HOOKS
1692
#endif /* MYSQL_SERVER || INNODB_COMPATIBILITY_HOOKS */
1694
extern bool using_update_log, server_id_supplied;
1695
extern bool opt_update_log, opt_bin_log, opt_error_log;
1696
extern bool opt_log;
1697
extern bool opt_slow_log;
1698
extern ulong log_output_options;
1699
extern bool opt_log_queries_not_using_indexes;
1700
extern bool opt_disable_networking, opt_skip_show_db;
1701
extern bool opt_character_set_client_handshake;
1702
extern bool volatile abort_loop, shutdown_in_progress;
1703
extern uint volatile thread_count, thread_running, global_read_lock;
1704
extern uint connection_count;
1705
extern bool opt_sql_bin_update;
1706
extern bool opt_safe_user_create;
1707
extern my_bool opt_no_mix_types;
1708
extern my_bool opt_safe_show_db, opt_myisam_use_mmap;
1709
extern bool opt_local_infile;
1710
extern bool opt_slave_compressed_protocol;
1711
extern bool use_temp_pool;
1712
extern ulong slave_exec_mode_options;
1713
extern bool opt_readonly;
1714
extern bool lower_case_file_system;
1715
extern bool opt_enable_named_pipe;
1716
extern bool opt_sync_frm;
1717
extern bool opt_secure_auth;
1718
extern char* opt_secure_file_priv;
1719
extern bool opt_log_slow_admin_statements;
1720
extern bool opt_log_slow_slave_statements;
1721
extern bool opt_noacl;
1722
extern bool opt_old_style_user_limits;
1723
extern uint opt_crash_binlog_innodb;
1724
extern char *shared_memory_base_name;
1725
extern my_bool opt_enable_shared_memory;
1726
extern char *default_tz_name;
1727
#endif /* MYSQL_SERVER */
1729
extern char *opt_logname, *opt_slow_logname;
1730
extern const char *log_output_str;
1732
extern MYSQL_BIN_LOG mysql_bin_log;
1733
extern LOGGER logger;
1734
extern TABLE_LIST general_log, slow_log;
1735
extern FILE *bootstrap_file;
1736
extern int bootstrap_error;
1737
extern FILE *stderror_file;
1738
extern pthread_key(MEM_ROOT**,THR_MALLOC);
1739
extern pthread_mutex_t LOCK_mysql_create_db,LOCK_open, LOCK_lock_db,
1740
LOCK_thread_count,LOCK_mapped_file,LOCK_user_locks, LOCK_status,
1741
LOCK_error_log, LOCK_uuid_generator,
1742
LOCK_crypt, LOCK_timezone,
1743
LOCK_slave_list, LOCK_active_mi, LOCK_global_read_lock,
1744
LOCK_global_system_variables, LOCK_user_conn,
1745
LOCK_bytes_sent, LOCK_bytes_received, LOCK_connection_count;
1746
extern pthread_mutex_t LOCK_server_started;
1747
extern rw_lock_t LOCK_sys_init_connect, LOCK_sys_init_slave;
1748
extern rw_lock_t LOCK_system_variables_hash;
1749
extern pthread_cond_t COND_refresh, COND_thread_count, COND_manager;
1750
extern pthread_cond_t COND_global_read_lock;
1751
extern pthread_attr_t connection_attrib;
1752
extern I_List<THD> threads;
1753
extern I_List<NAMED_LIST> key_caches;
1754
extern MY_BITMAP temp_pool;
1755
extern String my_empty_string;
1756
extern const String my_null_string;
1757
extern SHOW_VAR status_vars[];
1758
#endif /* MYSQL_SERVER */
1759
#if defined MYSQL_SERVER || defined INNODB_COMPATIBILITY_HOOKS
1760
extern struct system_variables global_system_variables;
1761
#endif /* MYSQL_SERVER || INNODB_COMPATIBILITY_HOOKS */
1763
extern struct system_variables max_system_variables;
1764
extern struct system_status_var global_status_var;
1765
extern struct rand_struct sql_rand;
1767
extern const char *opt_date_time_formats[];
1768
extern KNOWN_DATE_TIME_FORMAT known_date_time_formats[];
1770
extern String null_string;
1771
extern HASH open_cache, lock_db_cache;
1772
extern TABLE *unused_tables;
1773
extern const char* any_db;
1774
extern struct my_option my_long_options[];
1775
extern const LEX_STRING view_type;
1776
extern scheduler_functions thread_scheduler;
1777
extern TYPELIB thread_handling_typelib;
1778
extern uint8 uc_update_queries[SQLCOM_END+1];
1779
extern uint sql_command_flags[];
1780
extern TYPELIB log_output_typelib;
1782
/* optional things, have_* variables */
1783
extern SHOW_COMP_OPTION have_community_features;
1785
extern handlerton *myisam_hton;
1786
extern handlerton *heap_hton;
1788
extern SHOW_COMP_OPTION have_symlink, have_dlopen;
1789
extern SHOW_COMP_OPTION have_crypt;
1790
extern SHOW_COMP_OPTION have_compress;
1793
extern pthread_t signal_thread;
1795
MYSQL_LOCK *mysql_lock_tables(THD *thd, TABLE **table, uint count,
1796
uint flags, bool *need_reopen);
1797
/* mysql_lock_tables() and open_table() flags bits */
1798
#define MYSQL_LOCK_IGNORE_GLOBAL_READ_LOCK 0x0001
1799
#define MYSQL_LOCK_IGNORE_FLUSH 0x0002
1800
#define MYSQL_LOCK_NOTIFY_IF_NEED_REOPEN 0x0004
1801
#define MYSQL_OPEN_TEMPORARY_ONLY 0x0008
1802
#define MYSQL_LOCK_IGNORE_GLOBAL_READ_ONLY 0x0010
1803
#define MYSQL_LOCK_PERF_SCHEMA 0x0020
1805
void mysql_unlock_tables(THD *thd, MYSQL_LOCK *sql_lock);
1806
void mysql_unlock_read_tables(THD *thd, MYSQL_LOCK *sql_lock);
1807
void mysql_unlock_some_tables(THD *thd, TABLE **table,uint count);
1808
void mysql_lock_remove(THD *thd, MYSQL_LOCK *locked,TABLE *table,
1809
bool always_unlock);
1810
void mysql_lock_abort(THD *thd, TABLE *table, bool upgrade_lock);
1811
void mysql_lock_downgrade_write(THD *thd, TABLE *table,
1812
thr_lock_type new_lock_type);
1813
bool mysql_lock_abort_for_thread(THD *thd, TABLE *table);
1814
MYSQL_LOCK *mysql_lock_merge(MYSQL_LOCK *a,MYSQL_LOCK *b);
1815
TABLE_LIST *mysql_lock_have_duplicate(THD *thd, TABLE_LIST *needle,
1816
TABLE_LIST *haystack);
1817
bool lock_global_read_lock(THD *thd);
1818
void unlock_global_read_lock(THD *thd);
1819
bool wait_if_global_read_lock(THD *thd, bool abort_on_refresh,
1820
bool is_not_commit);
1821
void start_waiting_global_read_lock(THD *thd);
1822
bool make_global_read_lock_block_commit(THD *thd);
1823
bool set_protect_against_global_read_lock(void);
1824
void unset_protect_against_global_read_lock(void);
1825
void broadcast_refresh(void);
1826
int try_transactional_lock(THD *thd, TABLE_LIST *table_list);
1827
int check_transactional_lock(THD *thd, TABLE_LIST *table_list);
1828
int set_handler_table_locks(THD *thd, TABLE_LIST *table_list,
1829
bool transactional);
1831
/* Lock based on name */
1832
int lock_and_wait_for_table_name(THD *thd, TABLE_LIST *table_list);
1833
int lock_table_name(THD *thd, TABLE_LIST *table_list, bool check_in_use);
1834
void unlock_table_name(THD *thd, TABLE_LIST *table_list);
1835
bool wait_for_locked_table_names(THD *thd, TABLE_LIST *table_list);
1836
bool lock_table_names(THD *thd, TABLE_LIST *table_list);
1837
void unlock_table_names(THD *thd, TABLE_LIST *table_list,
1838
TABLE_LIST *last_table);
1839
bool lock_table_names_exclusively(THD *thd, TABLE_LIST *table_list);
1840
bool is_table_name_exclusively_locked_by_this_thread(THD *thd,
1841
TABLE_LIST *table_list);
1842
bool is_table_name_exclusively_locked_by_this_thread(THD *thd, uchar *key,
1846
/* old unireg functions */
1848
void unireg_init(ulong options);
1849
void unireg_end(void) __attribute__((noreturn));
1850
bool mysql_create_frm(THD *thd, const char *file_name,
1851
const char *db, const char *table,
1852
HA_CREATE_INFO *create_info,
1853
List<Create_field> &create_field,
1854
uint key_count,KEY *key_info,handler *db_type);
1855
int rea_create_table(THD *thd, const char *path,
1856
const char *db, const char *table_name,
1857
HA_CREATE_INFO *create_info,
1858
List<Create_field> &create_field,
1859
uint key_count,KEY *key_info,
1861
int format_number(uint inputflag,uint max_length,char * pos,uint length,
1865
TABLE_SHARE *alloc_table_share(TABLE_LIST *table_list, char *key,
1867
void init_tmp_table_share(THD *thd, TABLE_SHARE *share, const char *key,
1869
const char *table_name, const char *path);
1870
void free_table_share(TABLE_SHARE *share);
1871
int open_table_def(THD *thd, TABLE_SHARE *share, uint db_flags);
1872
void open_table_error(TABLE_SHARE *share, int error, int db_errno, int errarg);
1873
int open_table_from_share(THD *thd, TABLE_SHARE *share, const char *alias,
1874
uint db_stat, uint prgflag, uint ha_open_flags,
1875
TABLE *outparam, open_table_mode open_mode);
1876
int readfrm(const char *name, uchar **data, size_t *length);
1877
int writefrm(const char* name, const uchar* data, size_t len);
1878
int closefrm(TABLE *table, bool free_share);
1879
int read_string(File file, uchar* *to, size_t length);
1880
void free_blobs(TABLE *table);
1881
int set_zone(int nr,int min_zone,int max_zone);
1882
ulong convert_period_to_month(ulong period);
1883
ulong convert_month_to_period(ulong month);
1884
void get_date_from_daynr(long daynr,uint *year, uint *month,
1886
my_time_t TIME_to_timestamp(THD *thd, const MYSQL_TIME *t, bool *not_exist);
1887
bool str_to_time_with_warn(const char *str,uint length,MYSQL_TIME *l_time);
1888
timestamp_type str_to_datetime_with_warn(const char *str, uint length,
1889
MYSQL_TIME *l_time, uint flags);
1890
void localtime_to_TIME(MYSQL_TIME *to, struct tm *from);
1891
void calc_time_from_sec(MYSQL_TIME *to, long seconds, long microseconds);
1893
void make_truncated_value_warning(THD *thd, MYSQL_ERROR::enum_warning_level level,
1894
const char *str_val,
1895
uint str_length, timestamp_type time_type,
1896
const char *field_name);
1898
bool date_add_interval(MYSQL_TIME *ltime, interval_type int_type, INTERVAL interval);
1899
bool calc_time_diff(MYSQL_TIME *l_time1, MYSQL_TIME *l_time2, int l_sign,
1900
int64_t *seconds_out, long *microseconds_out);
1902
extern LEX_STRING interval_type_to_name[];
1904
extern DATE_TIME_FORMAT *date_time_format_make(timestamp_type format_type,
1905
const char *format_str,
1906
uint format_length);
1907
extern DATE_TIME_FORMAT *date_time_format_copy(THD *thd,
1908
DATE_TIME_FORMAT *format);
1909
const char *get_date_time_format_str(KNOWN_DATE_TIME_FORMAT *format,
1910
timestamp_type type);
1911
extern bool make_date_time(DATE_TIME_FORMAT *format, MYSQL_TIME *l_time,
1912
timestamp_type type, String *str);
1913
void make_datetime(const DATE_TIME_FORMAT *format, const MYSQL_TIME *l_time,
1915
void make_date(const DATE_TIME_FORMAT *format, const MYSQL_TIME *l_time,
1917
void make_time(const DATE_TIME_FORMAT *format, const MYSQL_TIME *l_time,
1919
int my_time_compare(MYSQL_TIME *a, MYSQL_TIME *b);
1920
uint64_t get_datetime_value(THD *thd, Item ***item_arg, Item **cache_arg,
1921
Item *warn_item, bool *is_null);
1923
int test_if_number(char *str,int *res,bool allow_wildcards);
1924
void change_byte(uchar *,uint,char,char);
1925
void init_read_record(READ_RECORD *info, THD *thd, TABLE *reg_form,
1927
int use_record_cache, bool print_errors);
1928
void init_read_record_idx(READ_RECORD *info, THD *thd, TABLE *table,
1929
bool print_error, uint idx);
1930
void end_read_record(READ_RECORD *info);
1931
ha_rows filesort(THD *thd, TABLE *form,struct st_sort_field *sortorder,
1932
uint s_length, SQL_SELECT *select,
1933
ha_rows max_rows, bool sort_positions,
1934
ha_rows *examined_rows);
1935
void filesort_free_buffers(TABLE *table, bool full);
1936
void change_double_for_sort(double nr,uchar *to);
1937
double my_double_round(double value, int64_t dec, bool dec_unsigned,
1939
int get_quick_record(SQL_SELECT *select);
1941
int calc_weekday(long daynr,bool sunday_first_day_of_week);
1942
uint calc_week(MYSQL_TIME *l_time, uint week_behaviour, uint *year);
1943
void find_date(char *pos,uint *vek,uint flag);
1944
TYPELIB *convert_strings_to_array_type(char * *typelibs, char * *end);
1945
TYPELIB *typelib(MEM_ROOT *mem_root, List<String> &strings);
1946
ulong get_form_pos(File file, uchar *head, TYPELIB *save_names);
1947
ulong make_new_entry(File file,uchar *fileinfo,TYPELIB *formnames,
1948
const char *newname);
1949
ulong next_io_size(ulong pos);
1950
void append_unescaped(String *res, const char *pos, uint length);
1951
int create_frm(THD *thd, const char *name, const char *db, const char *table,
1952
uint reclength, uchar *fileinfo,
1953
HA_CREATE_INFO *create_info, uint keys, KEY *key_info);
1954
void update_create_info_from_table(HA_CREATE_INFO *info, TABLE *form);
1955
int rename_file_ext(const char * from,const char * to,const char * ext);
1956
bool check_db_name(LEX_STRING *db);
1957
bool check_column_name(const char *name);
1958
bool check_table_name(const char *name, uint length);
1959
char *get_field(MEM_ROOT *mem, Field *field);
1960
bool get_field(MEM_ROOT *mem, Field *field, class String *res);
1961
char *fn_rext(char *name);
1963
/* Conversion functions */
1964
#endif /* MYSQL_SERVER */
1965
#if defined MYSQL_SERVER || defined INNODB_COMPATIBILITY_HOOKS
1966
uint strconvert(CHARSET_INFO *from_cs, const char *from,
1967
CHARSET_INFO *to_cs, char *to, uint to_length, uint *errors);
1968
uint filename_to_tablename(const char *from, char *to, uint to_length);
1969
uint tablename_to_filename(const char *from, char *to, uint to_length);
1970
#endif /* MYSQL_SERVER || INNODB_COMPATIBILITY_HOOKS */
1972
uint build_table_filename(char *buff, size_t bufflen, const char *db,
1973
const char *table, const char *ext, uint flags);
1975
#define MYSQL50_TABLE_NAME_PREFIX "#mysql50#"
1976
#define MYSQL50_TABLE_NAME_PREFIX_LENGTH 9
1978
/* Flags for conversion functions. */
1979
#define FN_FROM_IS_TMP (1 << 0)
1980
#define FN_TO_IS_TMP (1 << 1)
1981
#define FN_IS_TMP (FN_FROM_IS_TMP | FN_TO_IS_TMP)
1982
#define NO_FRM_RENAME (1 << 2)
1985
Item *get_system_var(THD *thd, enum_var_type var_type, LEX_STRING name,
1986
LEX_STRING component);
1987
int get_var_with_binlog(THD *thd, enum_sql_command sql_command,
1988
LEX_STRING &name, user_var_entry **out_entry);
1990
bool flush_error_log(void);
1993
void free_list(I_List <i_string_pair> *list);
1994
void free_list(I_List <i_string> *list);
1996
/* Some inline functions for more speed */
1998
inline bool add_item_to_list(THD *thd, Item *item)
2000
return thd->lex->current_select->add_item_to_list(thd, item);
2003
inline bool add_value_to_list(THD *thd, Item *value)
2005
return thd->lex->value_list.push_back(value);
2008
inline bool add_order_to_list(THD *thd, Item *item, bool asc)
2010
return thd->lex->current_select->add_order_to_list(thd, item, asc);
2013
inline bool add_group_to_list(THD *thd, Item *item, bool asc)
2015
return thd->lex->current_select->add_group_to_list(thd, item, asc);
2018
inline void mark_as_null_row(TABLE *table)
2021
table->status|=STATUS_NULL_ROW;
2022
bfill(table->null_flags,table->s->null_bytes,255);
2025
inline void table_case_convert(char * name, uint length)
2027
if (lower_case_table_names)
2028
files_charset_info->cset->casedn(files_charset_info,
2029
name, length, name, length);
2032
inline const char *table_case_name(HA_CREATE_INFO *info, const char *name)
2034
return ((lower_case_table_names == 2 && info->alias) ? info->alias : name);
2037
inline ulong sql_rnd_with_mutex()
2039
pthread_mutex_lock(&LOCK_thread_count);
2040
ulong tmp=(ulong) (my_rnd(&sql_rand) * 0xffffffff); /* make all bits random */
2041
pthread_mutex_unlock(&LOCK_thread_count);
2045
Comp_creator *comp_eq_creator(bool invert);
2046
Comp_creator *comp_ge_creator(bool invert);
2047
Comp_creator *comp_gt_creator(bool invert);
2048
Comp_creator *comp_le_creator(bool invert);
2049
Comp_creator *comp_lt_creator(bool invert);
2050
Comp_creator *comp_ne_creator(bool invert);
2052
Item * all_any_subquery_creator(Item *left_expr,
2053
chooser_compare_func_creator cmp,
2055
SELECT_LEX *select_lex);
2058
clean/setup table fields and map.
2060
@param table TABLE structure pointer (which should be setup)
2061
@param table_list TABLE_LIST structure pointer (owner of TABLE)
2062
@param tablenr table number
2066
inline void setup_table_map(TABLE *table, TABLE_LIST *table_list, uint tablenr)
2068
table->used_fields= 0;
2069
table->const_table= 0;
2071
table->status= STATUS_NO_RECORD;
2072
table->maybe_null= table_list->outer_join;
2073
TABLE_LIST *embedding= table_list->embedding;
2074
while (!table->maybe_null && embedding)
2076
table->maybe_null= embedding->outer_join;
2077
embedding= embedding->embedding;
2079
table->tablenr= tablenr;
2080
table->map= (table_map) 1 << tablenr;
2081
table->force_index= table_list->force_index;
2082
table->covering_keys= table->s->keys_for_keyread;
2083
table->merge_keys.clear_all();
2088
convert a hex digit into number.
2091
inline int hexchar_to_int(char c)
2093
if (c <= '9' && c >= '0')
2096
if (c <= 'f' && c >= 'a')
2102
return true if the table was created explicitly.
2104
inline bool is_user_table(TABLE * table)
2106
const char *name= table->s->table_name.str;
2107
return strncmp(name, tmp_file_prefix, tmp_file_prefix_length);
2113
This will be slightly slower and perhaps a tiny bit less accurate than
2114
doing it the IEEE754 way but log2() should be available on C99 systems.
2116
static inline double log2(double x)
2118
return (log(x) / M_LN2);
2124
Some functions that are different in the embedded library and the normal
2128
extern "C" void unireg_abort(int exit_code) __attribute__((noreturn));
2129
void kill_delayed_threads(void);
2130
bool check_stack_overrun(THD *thd, long margin, uchar *dummy);
2132
/* Used by handlers to store things in schema tables */
2133
#define IS_FILES_FILE_ID 0
2134
#define IS_FILES_FILE_NAME 1
2135
#define IS_FILES_FILE_TYPE 2
2136
#define IS_FILES_TABLESPACE_NAME 3
2137
#define IS_FILES_TABLE_CATALOG 4
2138
#define IS_FILES_TABLE_SCHEMA 5
2139
#define IS_FILES_TABLE_NAME 6
2140
#define IS_FILES_LOGFILE_GROUP_NAME 7
2141
#define IS_FILES_LOGFILE_GROUP_NUMBER 8
2142
#define IS_FILES_ENGINE 9
2143
#define IS_FILES_FULLTEXT_KEYS 10
2144
#define IS_FILES_DELETED_ROWS 11
2145
#define IS_FILES_UPDATE_COUNT 12
2146
#define IS_FILES_FREE_EXTENTS 13
2147
#define IS_FILES_TOTAL_EXTENTS 14
2148
#define IS_FILES_EXTENT_SIZE 15
2149
#define IS_FILES_INITIAL_SIZE 16
2150
#define IS_FILES_MAXIMUM_SIZE 17
2151
#define IS_FILES_AUTOEXTEND_SIZE 18
2152
#define IS_FILES_CREATION_TIME 19
2153
#define IS_FILES_LAST_UPDATE_TIME 20
2154
#define IS_FILES_LAST_ACCESS_TIME 21
2155
#define IS_FILES_RECOVER_TIME 22
2156
#define IS_FILES_TRANSACTION_COUNTER 23
2157
#define IS_FILES_VERSION 24
2158
#define IS_FILES_ROW_FORMAT 25
2159
#define IS_FILES_TABLE_ROWS 26
2160
#define IS_FILES_AVG_ROW_LENGTH 27
2161
#define IS_FILES_DATA_LENGTH 28
2162
#define IS_FILES_MAX_DATA_LENGTH 29
2163
#define IS_FILES_INDEX_LENGTH 30
2164
#define IS_FILES_DATA_FREE 31
2165
#define IS_FILES_CREATE_TIME 32
2166
#define IS_FILES_UPDATE_TIME 33
2167
#define IS_FILES_CHECK_TIME 34
2168
#define IS_FILES_CHECKSUM 35
2169
#define IS_FILES_STATUS 36
2170
#define IS_FILES_EXTRA 37
2171
void init_fill_schema_files_row(TABLE* table);
2172
bool schema_table_store_record(THD *thd, TABLE *table);
2174
/* sql/item_create.cc */
2175
int item_create_init();
2176
void item_create_cleanup();
2178
inline void lex_string_set(LEX_STRING *lex_str, const char *c_str)
2180
lex_str->str= (char *) c_str;
2181
lex_str->length= strlen(c_str);
2184
bool load_charset(MEM_ROOT *mem_root,
2186
CHARSET_INFO *dflt_cs,
2189
bool load_collation(MEM_ROOT *mem_root,
2191
CHARSET_INFO *dflt_cl,
2194
#endif /* MYSQL_SERVER */
2195
#endif /* MYSQL_CLIENT */
2197
#endif /* MYSQL_PRIV_H */