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sql_parse.cc
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sql_parse.cc
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/* Copyright (c) 2000, 2015, Oracle and/or its affiliates.
Copyright (c) 2008, 2016, MariaDB Corporation
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
#define MYSQL_LEX 1
#include <my_global.h>
#include "sql_priv.h"
#include "sql_parse.h" // sql_kill, *_precheck, *_prepare
#include "lock.h" // try_transactional_lock,
// check_transactional_lock,
// set_handler_table_locks,
// lock_global_read_lock,
// make_global_read_lock_block_commit
#include "sql_base.h" // open_tables, open_and_lock_tables,
// lock_tables, unique_table,
// close_thread_tables, is_temporary_table
// table_cache.h
#include "sql_cache.h" // QUERY_CACHE_FLAGS_SIZE, query_cache_*
#include "sql_show.h" // mysqld_list_*, mysqld_show_*,
// calc_sum_of_all_status
#include "mysqld.h"
#include "sql_locale.h" // my_locale_en_US
#include "log.h" // flush_error_log
#include "sql_view.h" // mysql_create_view, mysql_drop_view
#include "sql_delete.h" // mysql_delete
#include "sql_insert.h" // mysql_insert
#include "sql_update.h" // mysql_update, mysql_multi_update
#include "sql_partition.h" // struct partition_info
#include "sql_db.h" // mysql_change_db, mysql_create_db,
// mysql_rm_db, mysql_upgrade_db,
// mysql_alter_db,
// check_db_dir_existence,
// my_dbopt_cleanup
#include "sql_table.h" // mysql_create_like_table,
// mysql_create_table,
// mysql_alter_table,
// mysql_backup_table,
// mysql_restore_table
#include "sql_reload.h" // reload_acl_and_cache
#include "sql_admin.h" // mysql_assign_to_keycache
#include "sql_connect.h" // decrease_user_connections,
// check_mqh,
// reset_mqh
#include "sql_rename.h" // mysql_rename_tables
#include "sql_tablespace.h" // mysql_alter_tablespace
#include "hostname.h" // hostname_cache_refresh
#include "sql_acl.h" // *_ACL, check_grant, is_acl_user,
// has_any_table_level_privileges,
// mysql_drop_user, mysql_rename_user,
// check_grant_routine,
// mysql_routine_grant,
// mysql_show_grants,
// sp_grant_privileges, ...
#include "sql_test.h" // mysql_print_status
#include "sql_select.h" // handle_select, mysql_select,
// mysql_explain_union
#include "sql_load.h" // mysql_load
#include "sql_servers.h" // create_servers, alter_servers,
// drop_servers, servers_reload
#include "sql_handler.h" // mysql_ha_open, mysql_ha_close,
// mysql_ha_read
#include "sql_binlog.h" // mysql_client_binlog_statement
#include "sql_do.h" // mysql_do
#include "sql_help.h" // mysqld_help
#include "rpl_constants.h" // Incident, INCIDENT_LOST_EVENTS
#include "log_event.h"
#include "sql_repl.h"
#include "rpl_filter.h"
#include "repl_failsafe.h"
#include <m_ctype.h>
#include <myisam.h>
#include <my_dir.h>
#include "rpl_handler.h"
#include "rpl_mi.h"
#include "sql_digest.h"
#include "sp_head.h"
#include "sp.h"
#include "sp_cache.h"
#include "events.h"
#include "sql_trigger.h"
#include "transaction.h"
#include "sql_audit.h"
#include "sql_prepare.h"
#include "sql_cte.h"
#include "debug_sync.h"
#include "probes_mysql.h"
#include "set_var.h"
#include "log_slow.h"
#include "sql_bootstrap.h"
#include "my_json_writer.h"
#define FLAGSTR(V,F) ((V)&(F)?#F" ":"")
#ifdef WITH_ARIA_STORAGE_ENGINE
#include "../storage/maria/ha_maria.h"
#endif
#include "wsrep_mysqld.h"
#include "wsrep_thd.h"
static void wsrep_mysql_parse(THD *thd, char *rawbuf, uint length,
Parser_state *parser_state,
bool is_com_multi,
bool is_next_command);
/**
@defgroup Runtime_Environment Runtime Environment
@{
*/
/* Used in error handling only */
#define SP_COM_STRING(LP) \
((LP)->sql_command == SQLCOM_CREATE_SPFUNCTION || \
(LP)->sql_command == SQLCOM_ALTER_FUNCTION || \
(LP)->sql_command == SQLCOM_SHOW_CREATE_FUNC || \
(LP)->sql_command == SQLCOM_DROP_FUNCTION ? \
"FUNCTION" : "PROCEDURE")
static bool execute_sqlcom_select(THD *thd, TABLE_LIST *all_tables);
static void sql_kill(THD *thd, longlong id, killed_state state, killed_type type);
static void sql_kill_user(THD *thd, LEX_USER *user, killed_state state);
static bool lock_tables_precheck(THD *thd, TABLE_LIST *tables);
static bool execute_show_status(THD *, TABLE_LIST *);
static bool check_rename_table(THD *, TABLE_LIST *, TABLE_LIST *);
const char *any_db="*any*"; // Special symbol for check_access
const LEX_STRING command_name[257]={
{ C_STRING_WITH_LEN("Sleep") }, //0
{ C_STRING_WITH_LEN("Quit") }, //1
{ C_STRING_WITH_LEN("Init DB") }, //2
{ C_STRING_WITH_LEN("Query") }, //3
{ C_STRING_WITH_LEN("Field List") }, //4
{ C_STRING_WITH_LEN("Create DB") }, //5
{ C_STRING_WITH_LEN("Drop DB") }, //6
{ C_STRING_WITH_LEN("Refresh") }, //7
{ C_STRING_WITH_LEN("Shutdown") }, //8
{ C_STRING_WITH_LEN("Statistics") }, //9
{ C_STRING_WITH_LEN("Processlist") }, //10
{ C_STRING_WITH_LEN("Connect") }, //11
{ C_STRING_WITH_LEN("Kill") }, //12
{ C_STRING_WITH_LEN("Debug") }, //13
{ C_STRING_WITH_LEN("Ping") }, //14
{ C_STRING_WITH_LEN("Time") }, //15
{ C_STRING_WITH_LEN("Delayed insert") }, //16
{ C_STRING_WITH_LEN("Change user") }, //17
{ C_STRING_WITH_LEN("Binlog Dump") }, //18
{ C_STRING_WITH_LEN("Table Dump") }, //19
{ C_STRING_WITH_LEN("Connect Out") }, //20
{ C_STRING_WITH_LEN("Register Slave") }, //21
{ C_STRING_WITH_LEN("Prepare") }, //22
{ C_STRING_WITH_LEN("Execute") }, //23
{ C_STRING_WITH_LEN("Long Data") }, //24
{ C_STRING_WITH_LEN("Close stmt") }, //25
{ C_STRING_WITH_LEN("Reset stmt") }, //26
{ C_STRING_WITH_LEN("Set option") }, //27
{ C_STRING_WITH_LEN("Fetch") }, //28
{ C_STRING_WITH_LEN("Daemon") }, //29
{ C_STRING_WITH_LEN("Unimpl get tid") }, //30
{ C_STRING_WITH_LEN("Reset connection") },//31
{ 0, 0 }, //32
{ 0, 0 }, //33
{ 0, 0 }, //34
{ 0, 0 }, //35
{ 0, 0 }, //36
{ 0, 0 }, //37
{ 0, 0 }, //38
{ 0, 0 }, //39
{ 0, 0 }, //40
{ 0, 0 }, //41
{ 0, 0 }, //42
{ 0, 0 }, //43
{ 0, 0 }, //44
{ 0, 0 }, //45
{ 0, 0 }, //46
{ 0, 0 }, //47
{ 0, 0 }, //48
{ 0, 0 }, //49
{ 0, 0 }, //50
{ 0, 0 }, //51
{ 0, 0 }, //52
{ 0, 0 }, //53
{ 0, 0 }, //54
{ 0, 0 }, //55
{ 0, 0 }, //56
{ 0, 0 }, //57
{ 0, 0 }, //58
{ 0, 0 }, //59
{ 0, 0 }, //60
{ 0, 0 }, //61
{ 0, 0 }, //62
{ 0, 0 }, //63
{ 0, 0 }, //64
{ 0, 0 }, //65
{ 0, 0 }, //66
{ 0, 0 }, //67
{ 0, 0 }, //68
{ 0, 0 }, //69
{ 0, 0 }, //70
{ 0, 0 }, //71
{ 0, 0 }, //72
{ 0, 0 }, //73
{ 0, 0 }, //74
{ 0, 0 }, //75
{ 0, 0 }, //76
{ 0, 0 }, //77
{ 0, 0 }, //78
{ 0, 0 }, //79
{ 0, 0 }, //80
{ 0, 0 }, //81
{ 0, 0 }, //82
{ 0, 0 }, //83
{ 0, 0 }, //84
{ 0, 0 }, //85
{ 0, 0 }, //86
{ 0, 0 }, //87
{ 0, 0 }, //88
{ 0, 0 }, //89
{ 0, 0 }, //90
{ 0, 0 }, //91
{ 0, 0 }, //92
{ 0, 0 }, //93
{ 0, 0 }, //94
{ 0, 0 }, //95
{ 0, 0 }, //96
{ 0, 0 }, //97
{ 0, 0 }, //98
{ 0, 0 }, //99
{ 0, 0 }, //100
{ 0, 0 }, //101
{ 0, 0 }, //102
{ 0, 0 }, //103
{ 0, 0 }, //104
{ 0, 0 }, //105
{ 0, 0 }, //106
{ 0, 0 }, //107
{ 0, 0 }, //108
{ 0, 0 }, //109
{ 0, 0 }, //110
{ 0, 0 }, //111
{ 0, 0 }, //112
{ 0, 0 }, //113
{ 0, 0 }, //114
{ 0, 0 }, //115
{ 0, 0 }, //116
{ 0, 0 }, //117
{ 0, 0 }, //118
{ 0, 0 }, //119
{ 0, 0 }, //120
{ 0, 0 }, //121
{ 0, 0 }, //122
{ 0, 0 }, //123
{ 0, 0 }, //124
{ 0, 0 }, //125
{ 0, 0 }, //126
{ 0, 0 }, //127
{ 0, 0 }, //128
{ 0, 0 }, //129
{ 0, 0 }, //130
{ 0, 0 }, //131
{ 0, 0 }, //132
{ 0, 0 }, //133
{ 0, 0 }, //134
{ 0, 0 }, //135
{ 0, 0 }, //136
{ 0, 0 }, //137
{ 0, 0 }, //138
{ 0, 0 }, //139
{ 0, 0 }, //140
{ 0, 0 }, //141
{ 0, 0 }, //142
{ 0, 0 }, //143
{ 0, 0 }, //144
{ 0, 0 }, //145
{ 0, 0 }, //146
{ 0, 0 }, //147
{ 0, 0 }, //148
{ 0, 0 }, //149
{ 0, 0 }, //150
{ 0, 0 }, //151
{ 0, 0 }, //152
{ 0, 0 }, //153
{ 0, 0 }, //154
{ 0, 0 }, //155
{ 0, 0 }, //156
{ 0, 0 }, //157
{ 0, 0 }, //158
{ 0, 0 }, //159
{ 0, 0 }, //160
{ 0, 0 }, //161
{ 0, 0 }, //162
{ 0, 0 }, //163
{ 0, 0 }, //164
{ 0, 0 }, //165
{ 0, 0 }, //166
{ 0, 0 }, //167
{ 0, 0 }, //168
{ 0, 0 }, //169
{ 0, 0 }, //170
{ 0, 0 }, //171
{ 0, 0 }, //172
{ 0, 0 }, //173
{ 0, 0 }, //174
{ 0, 0 }, //175
{ 0, 0 }, //176
{ 0, 0 }, //177
{ 0, 0 }, //178
{ 0, 0 }, //179
{ 0, 0 }, //180
{ 0, 0 }, //181
{ 0, 0 }, //182
{ 0, 0 }, //183
{ 0, 0 }, //184
{ 0, 0 }, //185
{ 0, 0 }, //186
{ 0, 0 }, //187
{ 0, 0 }, //188
{ 0, 0 }, //189
{ 0, 0 }, //190
{ 0, 0 }, //191
{ 0, 0 }, //192
{ 0, 0 }, //193
{ 0, 0 }, //194
{ 0, 0 }, //195
{ 0, 0 }, //196
{ 0, 0 }, //197
{ 0, 0 }, //198
{ 0, 0 }, //199
{ 0, 0 }, //200
{ 0, 0 }, //201
{ 0, 0 }, //202
{ 0, 0 }, //203
{ 0, 0 }, //204
{ 0, 0 }, //205
{ 0, 0 }, //206
{ 0, 0 }, //207
{ 0, 0 }, //208
{ 0, 0 }, //209
{ 0, 0 }, //210
{ 0, 0 }, //211
{ 0, 0 }, //212
{ 0, 0 }, //213
{ 0, 0 }, //214
{ 0, 0 }, //215
{ 0, 0 }, //216
{ 0, 0 }, //217
{ 0, 0 }, //218
{ 0, 0 }, //219
{ 0, 0 }, //220
{ 0, 0 }, //221
{ 0, 0 }, //222
{ 0, 0 }, //223
{ 0, 0 }, //224
{ 0, 0 }, //225
{ 0, 0 }, //226
{ 0, 0 }, //227
{ 0, 0 }, //228
{ 0, 0 }, //229
{ 0, 0 }, //230
{ 0, 0 }, //231
{ 0, 0 }, //232
{ 0, 0 }, //233
{ 0, 0 }, //234
{ 0, 0 }, //235
{ 0, 0 }, //236
{ 0, 0 }, //237
{ 0, 0 }, //238
{ 0, 0 }, //239
{ 0, 0 }, //240
{ 0, 0 }, //241
{ 0, 0 }, //242
{ 0, 0 }, //243
{ 0, 0 }, //244
{ 0, 0 }, //245
{ 0, 0 }, //246
{ 0, 0 }, //247
{ 0, 0 }, //248
{ 0, 0 }, //249
{ 0, 0 }, //250
{ C_STRING_WITH_LEN("Slave_worker") }, //251
{ C_STRING_WITH_LEN("Slave_IO") }, //252
{ C_STRING_WITH_LEN("Slave_SQL") }, //253
{ C_STRING_WITH_LEN("Com_multi") }, //254
{ C_STRING_WITH_LEN("Error") } // Last command number 255
};
const char *xa_state_names[]={
"NON-EXISTING", "ACTIVE", "IDLE", "PREPARED", "ROLLBACK ONLY"
};
#ifdef HAVE_REPLICATION
/**
Returns true if all tables should be ignored.
*/
inline bool all_tables_not_ok(THD *thd, TABLE_LIST *tables)
{
Rpl_filter *rpl_filter= thd->system_thread_info.rpl_sql_info->rpl_filter;
return rpl_filter->is_on() && tables && !thd->spcont &&
!rpl_filter->tables_ok(thd->db, tables);
}
#endif
static bool some_non_temp_table_to_be_updated(THD *thd, TABLE_LIST *tables)
{
for (TABLE_LIST *table= tables; table; table= table->next_global)
{
DBUG_ASSERT(table->db && table->table_name);
if (table->updating && !thd->find_tmp_table_share(table))
return 1;
}
return 0;
}
/*
Implicitly commit a active transaction if statement requires so.
@param thd Thread handle.
@param mask Bitmask used for the SQL command match.
@return 0 No implicit commit
@return 1 Do a commit
*/
static bool stmt_causes_implicit_commit(THD *thd, uint mask)
{
LEX *lex= thd->lex;
bool skip= FALSE;
DBUG_ENTER("stmt_causes_implicit_commit");
if (!(sql_command_flags[lex->sql_command] & mask))
DBUG_RETURN(FALSE);
switch (lex->sql_command) {
case SQLCOM_DROP_TABLE:
skip= (lex->tmp_table() ||
(thd->variables.option_bits & OPTION_GTID_BEGIN));
break;
case SQLCOM_ALTER_TABLE:
/* If ALTER TABLE of non-temporary table, do implicit commit */
skip= (lex->tmp_table());
break;
case SQLCOM_CREATE_TABLE:
/*
If CREATE TABLE of non-temporary table and the table is not part
if a BEGIN GTID ... COMMIT group, do a implicit commit.
This ensures that CREATE ... SELECT will in the same GTID group on the
master and slave.
*/
skip= (lex->tmp_table() ||
(thd->variables.option_bits & OPTION_GTID_BEGIN));
break;
case SQLCOM_SET_OPTION:
skip= lex->autocommit ? FALSE : TRUE;
break;
default:
break;
}
DBUG_RETURN(!skip);
}
/**
Mark all commands that somehow changes a table.
This is used to check number of updates / hour.
sql_command is actually set to SQLCOM_END sometimes
so we need the +1 to include it in the array.
See COMMAND_FLAG_xxx for different type of commands
2 - query that returns meaningful ROW_COUNT() -
a number of modified rows
*/
uint sql_command_flags[SQLCOM_END+1];
uint server_command_flags[COM_END+1];
void init_update_queries(void)
{
/* Initialize the server command flags array. */
memset(server_command_flags, 0, sizeof(server_command_flags));
server_command_flags[COM_STATISTICS]= CF_SKIP_QUERY_ID | CF_SKIP_QUESTIONS | CF_SKIP_WSREP_CHECK;
server_command_flags[COM_PING]= CF_SKIP_QUERY_ID | CF_SKIP_QUESTIONS | CF_SKIP_WSREP_CHECK | CF_NO_COM_MULTI;
server_command_flags[COM_QUIT]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_PROCESS_INFO]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_PROCESS_KILL]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_SHUTDOWN]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_SLEEP]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_TIME]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_END]= CF_SKIP_WSREP_CHECK;
for (uint i= COM_MDB_GAP_BEG; i <= COM_MDB_GAP_END; i++)
{
server_command_flags[i]= CF_SKIP_WSREP_CHECK;
}
/*
COM_QUERY, COM_SET_OPTION and COM_STMT_XXX are allowed to pass the early
COM_xxx filter, they're checked later in mysql_execute_command().
*/
server_command_flags[COM_QUERY]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_SET_OPTION]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_STMT_PREPARE]= CF_SKIP_QUESTIONS | CF_SKIP_WSREP_CHECK;
server_command_flags[COM_STMT_CLOSE]= CF_SKIP_QUESTIONS | CF_SKIP_WSREP_CHECK;
server_command_flags[COM_STMT_RESET]= CF_SKIP_QUESTIONS | CF_SKIP_WSREP_CHECK;
server_command_flags[COM_STMT_EXECUTE]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_STMT_SEND_LONG_DATA]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_REGISTER_SLAVE]= CF_SKIP_WSREP_CHECK;
server_command_flags[COM_MULTI]= CF_SKIP_WSREP_CHECK | CF_NO_COM_MULTI;
server_command_flags[CF_NO_COM_MULTI]= CF_NO_COM_MULTI;
/* Initialize the sql command flags array. */
memset(sql_command_flags, 0, sizeof(sql_command_flags));
/*
In general, DDL statements do not generate row events and do not go
through a cache before being written to the binary log. However, the
CREATE TABLE...SELECT is an exception because it may generate row
events. For that reason, the SQLCOM_CREATE_TABLE which represents
a CREATE TABLE, including the CREATE TABLE...SELECT, has the
CF_CAN_GENERATE_ROW_EVENTS flag. The distinction between a regular
CREATE TABLE and the CREATE TABLE...SELECT is made in other parts of
the code, in particular in the Query_log_event's constructor.
*/
sql_command_flags[SQLCOM_CREATE_TABLE]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_AUTO_COMMIT_TRANS | CF_REPORT_PROGRESS |
CF_CAN_GENERATE_ROW_EVENTS;
sql_command_flags[SQLCOM_CREATE_INDEX]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS | CF_REPORT_PROGRESS;
sql_command_flags[SQLCOM_ALTER_TABLE]= CF_CHANGES_DATA | CF_WRITE_LOGS_COMMAND |
CF_AUTO_COMMIT_TRANS | CF_REPORT_PROGRESS |
CF_INSERTS_DATA;
sql_command_flags[SQLCOM_TRUNCATE]= CF_CHANGES_DATA | CF_WRITE_LOGS_COMMAND |
CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_TABLE]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_LOAD]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS | CF_REPORT_PROGRESS |
CF_INSERTS_DATA;
sql_command_flags[SQLCOM_CREATE_DB]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_DB]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_ALTER_DB_UPGRADE]= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_ALTER_DB]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_RENAME_TABLE]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_INDEX]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS | CF_REPORT_PROGRESS;
sql_command_flags[SQLCOM_CREATE_VIEW]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_VIEW]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_CREATE_TRIGGER]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_TRIGGER]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_CREATE_EVENT]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_ALTER_EVENT]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_EVENT]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_UPDATE]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE |
CF_CAN_BE_EXPLAINED |
CF_UPDATES_DATA | CF_SP_BULK_SAFE;
sql_command_flags[SQLCOM_UPDATE_MULTI]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE |
CF_CAN_BE_EXPLAINED |
CF_UPDATES_DATA | CF_SP_BULK_SAFE;
sql_command_flags[SQLCOM_INSERT]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE |
CF_CAN_BE_EXPLAINED |
CF_INSERTS_DATA |
CF_SP_BULK_SAFE |
CF_SP_BULK_OPTIMIZED;
sql_command_flags[SQLCOM_INSERT_SELECT]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE |
CF_CAN_BE_EXPLAINED |
CF_INSERTS_DATA;
sql_command_flags[SQLCOM_DELETE]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE |
CF_CAN_BE_EXPLAINED;
sql_command_flags[SQLCOM_DELETE_MULTI]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE |
CF_CAN_BE_EXPLAINED;;
sql_command_flags[SQLCOM_REPLACE]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE |
CF_CAN_BE_EXPLAINED |
CF_INSERTS_DATA | CF_SP_BULK_SAFE;
sql_command_flags[SQLCOM_REPLACE_SELECT]= CF_CHANGES_DATA | CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE |
CF_CAN_BE_EXPLAINED |
CF_INSERTS_DATA;
sql_command_flags[SQLCOM_SELECT]= CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE |
CF_CAN_BE_EXPLAINED;
// (1) so that subquery is traced when doing "SET @var = (subquery)"
/*
@todo SQLCOM_SET_OPTION should have CF_CAN_GENERATE_ROW_EVENTS
set, because it may invoke a stored function that generates row
events. /Sven
*/
sql_command_flags[SQLCOM_SET_OPTION]= CF_REEXECUTION_FRAGILE |
CF_AUTO_COMMIT_TRANS |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE; // (1)
// (1) so that subquery is traced when doing "DO @var := (subquery)"
sql_command_flags[SQLCOM_DO]= CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE; // (1)
sql_command_flags[SQLCOM_SHOW_STATUS_PROC]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_STATUS]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_DATABASES]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_TRIGGERS]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_EVENTS]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_OPEN_TABLES]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_PLUGINS]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_GENERIC]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_FIELDS]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_KEYS]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_VARIABLES]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_CHARSETS]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_COLLATIONS]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_BINLOGS]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_SLAVE_HOSTS]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_BINLOG_EVENTS]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_STORAGE_ENGINES]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_AUTHORS]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_CONTRIBUTORS]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_PRIVILEGES]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_WARNS]= CF_STATUS_COMMAND | CF_DIAGNOSTIC_STMT;
sql_command_flags[SQLCOM_SHOW_ERRORS]= CF_STATUS_COMMAND | CF_DIAGNOSTIC_STMT;
sql_command_flags[SQLCOM_SHOW_ENGINE_STATUS]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_ENGINE_MUTEX]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_ENGINE_LOGS]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_EXPLAIN]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_PROCESSLIST]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_GRANTS]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_CREATE_USER]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_CREATE_DB]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_CREATE]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_MASTER_STAT]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_SLAVE_STAT]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_CREATE_PROC]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_CREATE_FUNC]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_CREATE_TRIGGER]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_STATUS_FUNC]= CF_STATUS_COMMAND | CF_REEXECUTION_FRAGILE;
sql_command_flags[SQLCOM_SHOW_PROC_CODE]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_FUNC_CODE]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_CREATE_EVENT]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_PROFILES]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_SHOW_PROFILE]= CF_STATUS_COMMAND;
sql_command_flags[SQLCOM_BINLOG_BASE64_EVENT]= CF_STATUS_COMMAND | CF_CAN_GENERATE_ROW_EVENTS;
sql_command_flags[SQLCOM_SHOW_TABLES]= (CF_STATUS_COMMAND | CF_SHOW_TABLE_COMMAND | CF_REEXECUTION_FRAGILE);
sql_command_flags[SQLCOM_SHOW_TABLE_STATUS]= (CF_STATUS_COMMAND | CF_SHOW_TABLE_COMMAND | CF_REEXECUTION_FRAGILE);
sql_command_flags[SQLCOM_CREATE_USER]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_RENAME_USER]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_DROP_USER]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_ALTER_USER]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_CREATE_ROLE]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_GRANT]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_GRANT_ROLE]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_REVOKE]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_REVOKE_ROLE]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_OPTIMIZE]= CF_CHANGES_DATA;
sql_command_flags[SQLCOM_CREATE_FUNCTION]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_CREATE_PROCEDURE]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_CREATE_SPFUNCTION]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_PROCEDURE]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_FUNCTION]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_ALTER_PROCEDURE]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_ALTER_FUNCTION]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_INSTALL_PLUGIN]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_UNINSTALL_PLUGIN]= CF_CHANGES_DATA | CF_AUTO_COMMIT_TRANS;
/*
The following is used to preserver CF_ROW_COUNT during the
a CALL or EXECUTE statement, so the value generated by the
last called (or executed) statement is preserved.
See mysql_execute_command() for how CF_ROW_COUNT is used.
*/
/*
(1): without it, in "CALL some_proc((subq))", subquery would not be
traced.
*/
sql_command_flags[SQLCOM_CALL]= CF_REEXECUTION_FRAGILE |
CF_CAN_GENERATE_ROW_EVENTS |
CF_OPTIMIZER_TRACE; // (1)
sql_command_flags[SQLCOM_EXECUTE]= CF_CAN_GENERATE_ROW_EVENTS;
sql_command_flags[SQLCOM_EXECUTE_IMMEDIATE]= CF_CAN_GENERATE_ROW_EVENTS;
sql_command_flags[SQLCOM_COMPOUND]= CF_CAN_GENERATE_ROW_EVENTS;
/*
We don't want to change to statement based replication for these commands
*/
sql_command_flags[SQLCOM_ROLLBACK]|= CF_FORCE_ORIGINAL_BINLOG_FORMAT;
/* We don't want to replicate ALTER TABLE for temp tables in row format */
sql_command_flags[SQLCOM_ALTER_TABLE]|= CF_FORCE_ORIGINAL_BINLOG_FORMAT;
/* We don't want to replicate TRUNCATE for temp tables in row format */
sql_command_flags[SQLCOM_TRUNCATE]|= CF_FORCE_ORIGINAL_BINLOG_FORMAT;
/* We don't want to replicate DROP for temp tables in row format */
sql_command_flags[SQLCOM_DROP_TABLE]|= CF_FORCE_ORIGINAL_BINLOG_FORMAT;
/* One can change replication mode with SET */
sql_command_flags[SQLCOM_SET_OPTION]|= CF_FORCE_ORIGINAL_BINLOG_FORMAT;
/*
The following admin table operations are allowed
on log tables.
*/
sql_command_flags[SQLCOM_REPAIR]= CF_WRITE_LOGS_COMMAND | CF_AUTO_COMMIT_TRANS | CF_REPORT_PROGRESS;
sql_command_flags[SQLCOM_OPTIMIZE]|= CF_WRITE_LOGS_COMMAND | CF_AUTO_COMMIT_TRANS | CF_REPORT_PROGRESS;
sql_command_flags[SQLCOM_ANALYZE]= CF_WRITE_LOGS_COMMAND | CF_AUTO_COMMIT_TRANS | CF_REPORT_PROGRESS;
sql_command_flags[SQLCOM_CHECK]= CF_WRITE_LOGS_COMMAND | CF_AUTO_COMMIT_TRANS | CF_REPORT_PROGRESS;
sql_command_flags[SQLCOM_CHECKSUM]= CF_REPORT_PROGRESS;
sql_command_flags[SQLCOM_CREATE_USER]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_ALTER_USER]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_USER]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_RENAME_USER]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_CREATE_ROLE]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_ROLE]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_REVOKE]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_REVOKE_ALL]= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_REVOKE_ROLE]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_GRANT]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_GRANT_ROLE]|= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_FLUSH]= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_RESET]= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_CREATE_SERVER]= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_ALTER_SERVER]= CF_AUTO_COMMIT_TRANS;
sql_command_flags[SQLCOM_DROP_SERVER]= CF_AUTO_COMMIT_TRANS;
/*
The following statements can deal with temporary tables,
so temporary tables should be pre-opened for those statements to
simplify privilege checking.
There are other statements that deal with temporary tables and open
them, but which are not listed here. The thing is that the order of
pre-opening temporary tables for those statements is somewhat custom.
*/
sql_command_flags[SQLCOM_CREATE_TABLE]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_DROP_TABLE]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_CREATE_INDEX]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_ALTER_TABLE]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_TRUNCATE]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_LOAD]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_DROP_INDEX]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_UPDATE]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_UPDATE_MULTI]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_INSERT_SELECT]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_DELETE]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_DELETE_MULTI]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_RENAME_TABLE]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_REPLACE_SELECT]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_SELECT]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_SET_OPTION]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_DO]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_HA_OPEN]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_CALL]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_CHECKSUM]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_ANALYZE]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_CHECK]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_OPTIMIZE]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_REPAIR]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_PRELOAD_KEYS]|= CF_PREOPEN_TMP_TABLES;
sql_command_flags[SQLCOM_ASSIGN_TO_KEYCACHE]|= CF_PREOPEN_TMP_TABLES;
/*
DDL statements that should start with closing opened handlers.
We use this flag only for statements for which open HANDLERs
have to be closed before temporary tables are pre-opened.
*/
sql_command_flags[SQLCOM_CREATE_TABLE]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_DROP_TABLE]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_ALTER_TABLE]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_TRUNCATE]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_REPAIR]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_OPTIMIZE]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_ANALYZE]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_CHECK]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_CREATE_INDEX]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_DROP_INDEX]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_PRELOAD_KEYS]|= CF_HA_CLOSE;
sql_command_flags[SQLCOM_ASSIGN_TO_KEYCACHE]|= CF_HA_CLOSE;
/*
Mark statements that always are disallowed in read-only
transactions. Note that according to the SQL standard,
even temporary table DDL should be disallowed.
*/
sql_command_flags[SQLCOM_CREATE_TABLE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_ALTER_TABLE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_TABLE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_RENAME_TABLE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_INDEX]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_INDEX]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_DB]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_DB]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_ALTER_DB_UPGRADE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_ALTER_DB]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_VIEW]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_VIEW]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_TRIGGER]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_TRIGGER]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_EVENT]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_ALTER_EVENT]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_EVENT]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_USER]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_ALTER_USER]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_RENAME_USER]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_USER]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_SERVER]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_ALTER_SERVER]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_SERVER]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_FUNCTION]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_PROCEDURE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_CREATE_SPFUNCTION]|=CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_PROCEDURE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_DROP_FUNCTION]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_ALTER_PROCEDURE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_ALTER_FUNCTION]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_TRUNCATE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_ALTER_TABLESPACE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_REPAIR]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_OPTIMIZE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_GRANT]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_REVOKE]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_REVOKE_ALL]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_INSTALL_PLUGIN]|= CF_DISALLOW_IN_RO_TRANS;
sql_command_flags[SQLCOM_UNINSTALL_PLUGIN]|= CF_DISALLOW_IN_RO_TRANS;
}
bool sqlcom_can_generate_row_events(const THD *thd)
{
return (sql_command_flags[thd->lex->sql_command] &
CF_CAN_GENERATE_ROW_EVENTS);
}
bool is_update_query(enum enum_sql_command command)
{
DBUG_ASSERT(command <= SQLCOM_END);
return (sql_command_flags[command] & CF_CHANGES_DATA) != 0;
}
/**
Check if a sql command is allowed to write to log tables.
@param command The SQL command
@return true if writing is allowed
*/
bool is_log_table_write_query(enum enum_sql_command command)
{
DBUG_ASSERT(command <= SQLCOM_END);
return (sql_command_flags[command] & CF_WRITE_LOGS_COMMAND) != 0;
}
void execute_init_command(THD *thd, LEX_STRING *init_command,
mysql_rwlock_t *var_lock)
{
Vio* save_vio;
ulonglong save_client_capabilities;
mysql_rwlock_rdlock(var_lock);
if (!init_command->length)
{
mysql_rwlock_unlock(var_lock);
return;
}
/*
copy the value under a lock, and release the lock.
init_command has to be executed without a lock held,
as it may try to change itself
*/
size_t len= init_command->length;
char *buf= thd->strmake(init_command->str, len);
mysql_rwlock_unlock(var_lock);
#if defined(ENABLED_PROFILING)
thd->profiling.start_new_query();
thd->profiling.set_query_source(buf, len);
#endif
THD_STAGE_INFO(thd, stage_execution_of_init_command);
save_client_capabilities= thd->client_capabilities;
thd->client_capabilities|= CLIENT_MULTI_QUERIES;
/*
We don't need return result of execution to client side.
To forbid this we should set thd->net.vio to 0.
*/
save_vio= thd->net.vio;
thd->net.vio= 0;
dispatch_command(COM_QUERY, thd, buf, len, FALSE, FALSE);
thd->client_capabilities= save_client_capabilities;
thd->net.vio= save_vio;
#if defined(ENABLED_PROFILING)
thd->profiling.finish_current_query();
#endif
}
static char *fgets_fn(char *buffer, size_t size, fgets_input_t input, int *error)
{
MYSQL_FILE *in= static_cast<MYSQL_FILE*> (input);
char *line= mysql_file_fgets(buffer, size, in);
if (error)
*error= (line == NULL) ? ferror(in->m_file) : 0;
return line;
}
static void handle_bootstrap_impl(THD *thd)
{
MYSQL_FILE *file= bootstrap_file;
DBUG_ENTER("handle_bootstrap_impl");
#ifndef EMBEDDED_LIBRARY
pthread_detach_this_thread();
thd->thread_stack= (char*) &thd;
#endif /* EMBEDDED_LIBRARY */
thd->security_ctx->user= (char*) my_strdup("boot", MYF(MY_WME));
thd->security_ctx->priv_user[0]= thd->security_ctx->priv_host[0]=
thd->security_ctx->priv_role[0]= 0;
/*
Make the "client" handle multiple results. This is necessary
to enable stored procedures with SELECTs and Dynamic SQL
in init-file.
*/
thd->client_capabilities|= CLIENT_MULTI_RESULTS;
thd->init_for_queries();
for ( ; ; )
{
char buffer[MAX_BOOTSTRAP_QUERY_SIZE] = "";
int rc, length;
char *query;
int error= 0;
rc= read_bootstrap_query(buffer, &length, file, fgets_fn, &error);
if (rc == READ_BOOTSTRAP_EOF)
break;
/*
Check for bootstrap file errors. SQL syntax errors will be
caught below.
*/
if (rc != READ_BOOTSTRAP_SUCCESS)
{
/*
mysql_parse() may have set a successful error status for the previous
query. We must clear the error status to report the bootstrap error.
*/
thd->get_stmt_da()->reset_diagnostics_area();
/* Get the nearest query text for reference. */
char *err_ptr= buffer + (length <= MAX_BOOTSTRAP_ERROR_LEN ?
0 : (length - MAX_BOOTSTRAP_ERROR_LEN));
switch (rc)
{
case READ_BOOTSTRAP_ERROR:
my_printf_error(ER_UNKNOWN_ERROR, "Bootstrap file error, return code (%d). "
"Nearest query: '%s'", MYF(0), error, err_ptr);
break;
case READ_BOOTSTRAP_QUERY_SIZE:
my_printf_error(ER_UNKNOWN_ERROR, "Boostrap file error. Query size "
"exceeded %d bytes near '%s'.", MYF(0),
MAX_BOOTSTRAP_LINE_SIZE, err_ptr);
break;
default:
DBUG_ASSERT(false);
break;
}