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Commit 552d1086 authored by mskold/marty@linux.site's avatar mskold/marty@linux.site
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Merge mysql.com:/windows/Linux_space/MySQL/mysql-5.1 

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.1-new-ndb
parents d5d2a1fd 6c8f5c58
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Showing with 409 additions and 10 deletions
include/my_base.h
View file @ 552d1086
...@@ -172,7 +172,15 @@ enum ha_extra_function { ...@@ -172,7 +172,15 @@ enum ha_extra_function {
Off by default. Off by default.
*/ */
HA_EXTRA_WRITE_CAN_REPLACE, HA_EXTRA_WRITE_CAN_REPLACE,
HA_EXTRA_WRITE_CANNOT_REPLACE HA_EXTRA_WRITE_CANNOT_REPLACE,
/*
Inform handler that delete_row()/update_row() cannot batch deletes/updates
and should perform them immediately. This may be needed when table has
AFTER DELETE/UPDATE triggers which access to subject table.
These flags are reset by the handler::extra(HA_EXTRA_RESET) call.
*/
HA_EXTRA_DELETE_CANNOT_BATCH,
HA_EXTRA_UPDATE_CANNOT_BATCH
}; };
/* The following is parameter to ha_panic() */ /* The following is parameter to ha_panic() */
......
mysql-test/r/ndb_trigger.result
View file @ 552d1086
...@@ -141,4 +141,175 @@ a b ...@@ -141,4 +141,175 @@ a b
drop trigger t4_au; drop trigger t4_au;
drop trigger t4_ad; drop trigger t4_ad;
drop table t1, t2, t3, t4, t5; drop table t1, t2, t3, t4, t5;
CREATE TABLE t1 (
id INT NOT NULL PRIMARY KEY,
xy INT
) ENGINE=ndbcluster;
INSERT INTO t1 VALUES (1, 0);
CREATE TRIGGER t1_update AFTER UPDATE ON t1 FOR EACH ROW BEGIN REPLACE INTO t2 SELECT * FROM t1 WHERE t1.id = NEW.id; END //
CREATE TABLE t2 (
id INT NOT NULL PRIMARY KEY,
xy INT
) ENGINE=ndbcluster;
INSERT INTO t2 VALUES (2, 0);
CREATE TABLE t3 (id INT NOT NULL PRIMARY KEY) ENGINE=ndbcluster;
INSERT INTO t3 VALUES (1);
CREATE TABLE t4 LIKE t1;
CREATE TRIGGER t4_update AFTER UPDATE ON t4 FOR EACH ROW BEGIN REPLACE INTO t5 SELECT * FROM t4 WHERE t4.id = NEW.id; END //
CREATE TABLE t5 LIKE t2;
UPDATE t1 SET xy = 3 WHERE id = 1;
SELECT xy FROM t1 where id = 1;
xy
3
SELECT xy FROM t2 where id = 1;
xy
3
UPDATE t1 SET xy = 4 WHERE id IN (SELECT id FROM t3 WHERE id = 1);
SELECT xy FROM t1 where id = 1;
xy
4
SELECT xy FROM t2 where id = 1;
xy
4
INSERT INTO t4 SELECT * FROM t1;
INSERT INTO t5 SELECT * FROM t2;
UPDATE t1,t4 SET t1.xy = 3, t4.xy = 3 WHERE t1.id = 1 AND t4.id = 1;
SELECT xy FROM t1 where id = 1;
xy
3
SELECT xy FROM t2 where id = 1;
xy
3
SELECT xy FROM t4 where id = 1;
xy
3
SELECT xy FROM t5 where id = 1;
xy
3
UPDATE t1,t4 SET t1.xy = 4, t4.xy = 4 WHERE t1.id IN (SELECT id FROM t3 WHERE id = 1) AND t4.id IN (SELECT id FROM t3 WHERE id = 1);
SELECT xy FROM t1 where id = 1;
xy
4
SELECT xy FROM t2 where id = 1;
xy
4
SELECT xy FROM t4 where id = 1;
xy
4
SELECT xy FROM t5 where id = 1;
xy
4
INSERT INTO t1 VALUES (1,0) ON DUPLICATE KEY UPDATE xy = 5;
SELECT xy FROM t1 where id = 1;
xy
5
SELECT xy FROM t2 where id = 1;
xy
5
DROP TRIGGER t1_update;
DROP TRIGGER t4_update;
CREATE TRIGGER t1_delete AFTER DELETE ON t1 FOR EACH ROW BEGIN REPLACE INTO t2 SELECT * FROM t1 WHERE t1.id > 4; END //
CREATE TRIGGER t4_delete AFTER DELETE ON t4 FOR EACH ROW BEGIN REPLACE INTO t5 SELECT * FROM t4 WHERE t4.id > 4; END //
INSERT INTO t1 VALUES (5, 0),(6,0);
INSERT INTO t2 VALUES (5, 1),(6,1);
INSERT INTO t3 VALUES (5);
SELECT * FROM t1 order by id;
id xy
1 5
5 0
6 0
SELECT * FROM t2 order by id;
id xy
1 5
2 0
5 1
6 1
DELETE FROM t1 WHERE id IN (SELECT id FROM t3 WHERE id = 5);
SELECT * FROM t1 order by id;
id xy
1 5
6 0
SELECT * FROM t2 order by id;
id xy
1 5
2 0
5 1
6 0
INSERT INTO t1 VALUES (5,0);
UPDATE t2 SET xy = 1 WHERE id = 6;
TRUNCATE t4;
INSERT INTO t4 SELECT * FROM t1;
TRUNCATE t5;
INSERT INTO t5 SELECT * FROM t2;
SELECT * FROM t1 order by id;
id xy
1 5
5 0
6 0
SELECT * FROM t2 order by id;
id xy
1 5
2 0
5 1
6 1
SELECT * FROM t4 order by id;
id xy
1 5
5 0
6 0
SELECT * FROM t5 order by id;
id xy
1 5
2 0
5 1
6 1
DELETE FROM t1,t4 USING t1,t3,t4 WHERE t1.id IN (SELECT id FROM t3 WHERE id = 5) AND t4.id IN (SELECT id FROM t3 WHERE id = 5);
SELECT * FROM t1 order by id;
id xy
1 5
6 0
SELECT * FROM t2 order by id;
id xy
1 5
2 0
5 1
6 0
SELECT * FROM t4 order by id;
id xy
1 5
6 0
SELECT * FROM t5 order by id;
id xy
1 5
2 0
5 1
6 0
INSERT INTO t1 VALUES (5, 0);
REPLACE INTO t2 VALUES (6,1);
SELECT * FROM t1 order by id;
id xy
1 5
5 0
6 0
SELECT * FROM t2 order by id;
id xy
1 5
2 0
5 1
6 1
REPLACE INTO t1 VALUES (5, 1);
SELECT * FROM t1 order by id;
id xy
1 5
5 1
6 0
SELECT * FROM t2 order by id;
id xy
1 5
2 0
5 1
6 0
DROP TRIGGER t1_delete;
DROP TRIGGER t4_delete;
DROP TABLE t1, t2, t3, t4, t5;
End of 5.1 tests End of 5.1 tests
mysql-test/t/ndb_trigger.test
View file @ 552d1086
...@@ -110,5 +110,112 @@ drop trigger t4_au; ...@@ -110,5 +110,112 @@ drop trigger t4_au;
drop trigger t4_ad; drop trigger t4_ad;
drop table t1, t2, t3, t4, t5; drop table t1, t2, t3, t4, t5;
# Test for bug#26242
# Verify that AFTER UPDATE/DELETE triggers are executed
# after the change has actually taken place
CREATE TABLE t1 (
id INT NOT NULL PRIMARY KEY,
xy INT
) ENGINE=ndbcluster;
INSERT INTO t1 VALUES (1, 0);
DELIMITER //;
CREATE TRIGGER t1_update AFTER UPDATE ON t1 FOR EACH ROW BEGIN REPLACE INTO t2 SELECT * FROM t1 WHERE t1.id = NEW.id; END //
DELIMITER ;//
CREATE TABLE t2 (
id INT NOT NULL PRIMARY KEY,
xy INT
) ENGINE=ndbcluster;
INSERT INTO t2 VALUES (2, 0);
CREATE TABLE t3 (id INT NOT NULL PRIMARY KEY) ENGINE=ndbcluster;
INSERT INTO t3 VALUES (1);
CREATE TABLE t4 LIKE t1;
DELIMITER //;
CREATE TRIGGER t4_update AFTER UPDATE ON t4 FOR EACH ROW BEGIN REPLACE INTO t5 SELECT * FROM t4 WHERE t4.id = NEW.id; END //
DELIMITER ;//
CREATE TABLE t5 LIKE t2;
UPDATE t1 SET xy = 3 WHERE id = 1;
SELECT xy FROM t1 where id = 1;
SELECT xy FROM t2 where id = 1;
UPDATE t1 SET xy = 4 WHERE id IN (SELECT id FROM t3 WHERE id = 1);
SELECT xy FROM t1 where id = 1;
SELECT xy FROM t2 where id = 1;
INSERT INTO t4 SELECT * FROM t1;
INSERT INTO t5 SELECT * FROM t2;
UPDATE t1,t4 SET t1.xy = 3, t4.xy = 3 WHERE t1.id = 1 AND t4.id = 1;
SELECT xy FROM t1 where id = 1;
SELECT xy FROM t2 where id = 1;
SELECT xy FROM t4 where id = 1;
SELECT xy FROM t5 where id = 1;
UPDATE t1,t4 SET t1.xy = 4, t4.xy = 4 WHERE t1.id IN (SELECT id FROM t3 WHERE id = 1) AND t4.id IN (SELECT id FROM t3 WHERE id = 1);
SELECT xy FROM t1 where id = 1;
SELECT xy FROM t2 where id = 1;
SELECT xy FROM t4 where id = 1;
SELECT xy FROM t5 where id = 1;
INSERT INTO t1 VALUES (1,0) ON DUPLICATE KEY UPDATE xy = 5;
SELECT xy FROM t1 where id = 1;
SELECT xy FROM t2 where id = 1;
DROP TRIGGER t1_update;
DROP TRIGGER t4_update;
DELIMITER //;
CREATE TRIGGER t1_delete AFTER DELETE ON t1 FOR EACH ROW BEGIN REPLACE INTO t2 SELECT * FROM t1 WHERE t1.id > 4; END //
DELIMITER ;//
DELIMITER //;
CREATE TRIGGER t4_delete AFTER DELETE ON t4 FOR EACH ROW BEGIN REPLACE INTO t5 SELECT * FROM t4 WHERE t4.id > 4; END //
DELIMITER ;//
INSERT INTO t1 VALUES (5, 0),(6,0);
INSERT INTO t2 VALUES (5, 1),(6,1);
INSERT INTO t3 VALUES (5);
SELECT * FROM t1 order by id;
SELECT * FROM t2 order by id;
DELETE FROM t1 WHERE id IN (SELECT id FROM t3 WHERE id = 5);
SELECT * FROM t1 order by id;
SELECT * FROM t2 order by id;
INSERT INTO t1 VALUES (5,0);
UPDATE t2 SET xy = 1 WHERE id = 6;
TRUNCATE t4;
INSERT INTO t4 SELECT * FROM t1;
TRUNCATE t5;
INSERT INTO t5 SELECT * FROM t2;
SELECT * FROM t1 order by id;
SELECT * FROM t2 order by id;
SELECT * FROM t4 order by id;
SELECT * FROM t5 order by id;
DELETE FROM t1,t4 USING t1,t3,t4 WHERE t1.id IN (SELECT id FROM t3 WHERE id = 5) AND t4.id IN (SELECT id FROM t3 WHERE id = 5);
SELECT * FROM t1 order by id;
SELECT * FROM t2 order by id;
SELECT * FROM t4 order by id;
SELECT * FROM t5 order by id;
INSERT INTO t1 VALUES (5, 0);
REPLACE INTO t2 VALUES (6,1);
SELECT * FROM t1 order by id;
SELECT * FROM t2 order by id;
REPLACE INTO t1 VALUES (5, 1);
SELECT * FROM t1 order by id;
SELECT * FROM t2 order by id;
DROP TRIGGER t1_delete;
DROP TRIGGER t4_delete;
DROP TABLE t1, t2, t3, t4, t5;
--echo End of 5.1 tests --echo End of 5.1 tests
sql/ha_ndbcluster.cc
View file @ 552d1086
...@@ -2999,8 +2999,13 @@ int ha_ndbcluster::update_row(const byte *old_data, byte *new_data) ...@@ -2999,8 +2999,13 @@ int ha_ndbcluster::update_row(const byte *old_data, byte *new_data)
if (thd->slave_thread) if (thd->slave_thread)
op->setAnyValue(thd->server_id); op->setAnyValue(thd->server_id);
// Execute update operation /*
if (!cursor && execute_no_commit(this,trans,FALSE) != 0) { Execute update operation if we are not doing a scan for update
and there exist UPDATE AFTER triggers
*/
if ((!cursor || m_update_cannot_batch) &&
execute_no_commit(this,trans,false) != 0) {
no_uncommitted_rows_execute_failure(); no_uncommitted_rows_execute_failure();
DBUG_RETURN(ndb_err(trans)); DBUG_RETURN(ndb_err(trans));
} }
...@@ -3057,7 +3062,7 @@ int ha_ndbcluster::delete_row(const byte *record) ...@@ -3057,7 +3062,7 @@ int ha_ndbcluster::delete_row(const byte *record)
if (thd->slave_thread) if (thd->slave_thread)
((NdbOperation *)trans->getLastDefinedOperation())->setAnyValue(thd->server_id); ((NdbOperation *)trans->getLastDefinedOperation())->setAnyValue(thd->server_id);
if (!m_primary_key_update) if (!(m_primary_key_update || m_delete_cannot_batch))
// If deleting from cursor, NoCommit will be handled in next_result // If deleting from cursor, NoCommit will be handled in next_result
DBUG_RETURN(0); DBUG_RETURN(0);
} }
...@@ -3902,7 +3907,13 @@ int ha_ndbcluster::extra(enum ha_extra_function operation) ...@@ -3902,7 +3907,13 @@ int ha_ndbcluster::extra(enum ha_extra_function operation)
DBUG_PRINT("info", ("Turning OFF use of write instead of insert")); DBUG_PRINT("info", ("Turning OFF use of write instead of insert"));
m_use_write= FALSE; m_use_write= FALSE;
break; break;
default: case HA_EXTRA_DELETE_CANNOT_BATCH:
DBUG_PRINT("info", ("HA_EXTRA_DELETE_CANNOT_BATCH"));
m_delete_cannot_batch= TRUE;
break;
case HA_EXTRA_UPDATE_CANNOT_BATCH:
DBUG_PRINT("info", ("HA_EXTRA_UPDATE_CANNOT_BATCH"));
m_update_cannot_batch= TRUE;
break; break;
} }
...@@ -3913,6 +3924,8 @@ int ha_ndbcluster::extra(enum ha_extra_function operation) ...@@ -3913,6 +3924,8 @@ int ha_ndbcluster::extra(enum ha_extra_function operation)
int ha_ndbcluster::reset() int ha_ndbcluster::reset()
{ {
DBUG_ENTER("ha_ndbcluster::reset"); DBUG_ENTER("ha_ndbcluster::reset");
m_delete_cannot_batch= FALSE;
m_update_cannot_batch= FALSE;
cond_clear(); cond_clear();
/* /*
Regular partition pruning will set the bitmap appropriately. Regular partition pruning will set the bitmap appropriately.
...@@ -5922,6 +5935,8 @@ ha_ndbcluster::ha_ndbcluster(handlerton *hton, TABLE_SHARE *table_arg): ...@@ -5922,6 +5935,8 @@ ha_ndbcluster::ha_ndbcluster(handlerton *hton, TABLE_SHARE *table_arg):
m_bulk_insert_rows((ha_rows) 1024), m_bulk_insert_rows((ha_rows) 1024),
m_rows_changed((ha_rows) 0), m_rows_changed((ha_rows) 0),
m_bulk_insert_not_flushed(FALSE), m_bulk_insert_not_flushed(FALSE),
m_delete_cannot_batch(FALSE),
m_update_cannot_batch(FALSE),
m_ops_pending(0), m_ops_pending(0),
m_skip_auto_increment(TRUE), m_skip_auto_increment(TRUE),
m_blobs_pending(0), m_blobs_pending(0),
......
sql/ha_ndbcluster.h
View file @ 552d1086
...@@ -964,6 +964,8 @@ static void set_tabname(const char *pathname, char *tabname); ...@@ -964,6 +964,8 @@ static void set_tabname(const char *pathname, char *tabname);
ha_rows m_bulk_insert_rows; ha_rows m_bulk_insert_rows;
ha_rows m_rows_changed; ha_rows m_rows_changed;
bool m_bulk_insert_not_flushed; bool m_bulk_insert_not_flushed;
bool m_delete_cannot_batch;
bool m_update_cannot_batch;
ha_rows m_ops_pending; ha_rows m_ops_pending;
bool m_skip_auto_increment; bool m_skip_auto_increment;
bool m_blobs_pending; bool m_blobs_pending;
......
sql/mysql_priv.h
View file @ 552d1086
...@@ -1007,6 +1007,7 @@ bool mysql_insert(THD *thd,TABLE_LIST *table,List<Item> &fields, ...@@ -1007,6 +1007,7 @@ bool mysql_insert(THD *thd,TABLE_LIST *table,List<Item> &fields,
bool ignore); bool ignore);
int check_that_all_fields_are_given_values(THD *thd, TABLE *entry, int check_that_all_fields_are_given_values(THD *thd, TABLE *entry,
TABLE_LIST *table_list); TABLE_LIST *table_list);
void prepare_triggers_for_insert_stmt(TABLE *table);
bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds); bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds);
bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
SQL_LIST *order, ha_rows rows, ulonglong options, SQL_LIST *order, ha_rows rows, ulonglong options,
......
sql/sql_delete.cc
View file @ 552d1086
...@@ -221,6 +221,19 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ...@@ -221,6 +221,19 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
init_ftfuncs(thd, select_lex, 1); init_ftfuncs(thd, select_lex, 1);
thd->proc_info="updating"; thd->proc_info="updating";
if (table->triggers &&
table->triggers->has_triggers(TRG_EVENT_DELETE,
TRG_ACTION_AFTER))
{
/*
The table has AFTER DELETE triggers that might access to subject table
and therefore might need delete to be done immediately. So we turn-off
the batching.
*/
(void) table->file->extra(HA_EXTRA_DELETE_CANNOT_BATCH);
will_batch= FALSE;
}
else
will_batch= !table->file->start_bulk_delete(); will_batch= !table->file->start_bulk_delete();
...@@ -563,6 +576,17 @@ multi_delete::initialize_tables(JOIN *join) ...@@ -563,6 +576,17 @@ multi_delete::initialize_tables(JOIN *join)
transactional_tables= 1; transactional_tables= 1;
else else
normal_tables= 1; normal_tables= 1;
if (tbl->triggers &&
tbl->triggers->has_triggers(TRG_EVENT_DELETE,
TRG_ACTION_AFTER))
{
/*
The table has AFTER DELETE triggers that might access to subject
table and therefore might need delete to be done immediately.
So we turn-off the batching.
*/
(void) tbl->file->extra(HA_EXTRA_DELETE_CANNOT_BATCH);
}
tbl->prepare_for_position(); tbl->prepare_for_position();
tbl->mark_columns_needed_for_delete(); tbl->mark_columns_needed_for_delete();
} }
......
sql/sql_insert.cc
View file @ 552d1086
...@@ -341,6 +341,47 @@ static int check_update_fields(THD *thd, TABLE_LIST *insert_table_list, ...@@ -341,6 +341,47 @@ static int check_update_fields(THD *thd, TABLE_LIST *insert_table_list,
return 0; return 0;
} }
/*
Prepare triggers for INSERT-like statement.
SYNOPSIS
prepare_triggers_for_insert_stmt()
table Table to which insert will happen
NOTE
Prepare triggers for INSERT-like statement by marking fields
used by triggers and inform handlers that batching of UPDATE/DELETE
cannot be done if there are BEFORE UPDATE/DELETE triggers.
*/
void prepare_triggers_for_insert_stmt(TABLE *table)
{
if (table->triggers)
{
if (table->triggers->has_triggers(TRG_EVENT_DELETE,
TRG_ACTION_AFTER))
{
/*
The table has AFTER DELETE triggers that might access to
subject table and therefore might need delete to be done
immediately. So we turn-off the batching.
*/
(void) table->file->extra(HA_EXTRA_DELETE_CANNOT_BATCH);
}
if (table->triggers->has_triggers(TRG_EVENT_UPDATE,
TRG_ACTION_AFTER))
{
/*
The table has AFTER UPDATE triggers that might access to subject
table and therefore might need update to be done immediately.
So we turn-off the batching.
*/
(void) table->file->extra(HA_EXTRA_UPDATE_CANNOT_BATCH);
}
}
table->mark_columns_needed_for_insert();
}
bool mysql_insert(THD *thd,TABLE_LIST *table_list, bool mysql_insert(THD *thd,TABLE_LIST *table_list,
List<Item> &fields, List<Item> &fields,
...@@ -575,7 +616,8 @@ bool mysql_insert(THD *thd,TABLE_LIST *table_list, ...@@ -575,7 +616,8 @@ bool mysql_insert(THD *thd,TABLE_LIST *table_list,
(MODE_STRICT_TRANS_TABLES | (MODE_STRICT_TRANS_TABLES |
MODE_STRICT_ALL_TABLES))); MODE_STRICT_ALL_TABLES)));
table->mark_columns_needed_for_insert(); prepare_triggers_for_insert_stmt(table);
if (table_list->prepare_where(thd, 0, TRUE) || if (table_list->prepare_where(thd, 0, TRUE) ||
table_list->prepare_check_option(thd)) table_list->prepare_check_option(thd))
...@@ -2646,7 +2688,7 @@ select_insert::prepare(List<Item> &values, SELECT_LEX_UNIT *u) ...@@ -2646,7 +2688,7 @@ select_insert::prepare(List<Item> &values, SELECT_LEX_UNIT *u)
table_list->prepare_check_option(thd)); table_list->prepare_check_option(thd));
if (!res) if (!res)
table->mark_columns_needed_for_insert(); prepare_triggers_for_insert_stmt(table);
DBUG_RETURN(res); DBUG_RETURN(res);
} }
......
sql/sql_load.cc
View file @ 552d1086
...@@ -226,7 +226,7 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list, ...@@ -226,7 +226,7 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
DBUG_RETURN(TRUE); DBUG_RETURN(TRUE);
} }
table->mark_columns_needed_for_insert(); prepare_triggers_for_insert_stmt(table);
uint tot_length=0; uint tot_length=0;
bool use_blobs= 0, use_vars= 0; bool use_blobs= 0, use_vars= 0;
......
sql/sql_trigger.h
View file @ 552d1086
...@@ -110,6 +110,11 @@ class Table_triggers_list: public Sql_alloc ...@@ -110,6 +110,11 @@ class Table_triggers_list: public Sql_alloc
const char *old_table, const char *old_table,
const char *new_db, const char *new_db,
const char *new_table); const char *new_table);
bool has_triggers(trg_event_type event_type,
trg_action_time_type action_time)
{
return (bodies[event_type][action_time]);
}
bool has_delete_triggers() bool has_delete_triggers()
{ {
return (bodies[TRG_EVENT_DELETE][TRG_ACTION_BEFORE] || return (bodies[TRG_EVENT_DELETE][TRG_ACTION_BEFORE] ||
......
sql/sql_update.cc
View file @ 552d1086
...@@ -452,6 +452,19 @@ int mysql_update(THD *thd, ...@@ -452,6 +452,19 @@ int mysql_update(THD *thd,
(thd->variables.sql_mode & (thd->variables.sql_mode &
(MODE_STRICT_TRANS_TABLES | (MODE_STRICT_TRANS_TABLES |
MODE_STRICT_ALL_TABLES))); MODE_STRICT_ALL_TABLES)));
if (table->triggers &&
table->triggers->has_triggers(TRG_EVENT_UPDATE,
TRG_ACTION_AFTER))
{
/*
The table has AFTER UPDATE triggers that might access to subject
table and therefore might need update to be done immediately.
So we turn-off the batching.
*/
(void) table->file->extra(HA_EXTRA_UPDATE_CANNOT_BATCH);
will_batch= FALSE;
}
else
will_batch= !table->file->start_bulk_update(); will_batch= !table->file->start_bulk_update();
/* /*
...@@ -1121,6 +1134,17 @@ int multi_update::prepare(List<Item> &not_used_values, ...@@ -1121,6 +1134,17 @@ int multi_update::prepare(List<Item> &not_used_values,
table->no_keyread=1; table->no_keyread=1;
table->covering_keys.clear_all(); table->covering_keys.clear_all();
table->pos_in_table_list= tl; table->pos_in_table_list= tl;
if (table->triggers &&
table->triggers->has_triggers(TRG_EVENT_UPDATE,
TRG_ACTION_AFTER))
{
/*
The table has AFTER UPDATE triggers that might access to subject
table and therefore might need update to be done immediately.
So we turn-off the batching.
*/
(void) table->file->extra(HA_EXTRA_UPDATE_CANNOT_BATCH);
}
} }
} }
......
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