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Commit 3e8cf595 authored by mskold/marty@mysql.com/linux.site's avatar mskold/marty@mysql.com/linux.site
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Merge mysql.com:/windows/Linux_space/MySQL/mysql-5.0 

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.0-ndb
parents b3ce0177 ee034c0e
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Showing with 418 additions and 8 deletions
include/my_base.h
View file @ 3e8cf595
...@@ -160,7 +160,15 @@ enum ha_extra_function { ...@@ -160,7 +160,15 @@ 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 @ 3e8cf595
...@@ -116,4 +116,175 @@ op a b ...@@ -116,4 +116,175 @@ op a b
d 1 1.050000000000000000000000000000 d 1 1.050000000000000000000000000000
d 2 2.050000000000000000000000000000 d 2 2.050000000000000000000000000000
drop tables t1, t2, t3; drop tables t1, t2, t3;
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 5.0 tests End of 5.0 tests
mysql-test/t/ndb_trigger.test
View file @ 3e8cf595
...@@ -89,4 +89,112 @@ select * from t2 order by op, a, b; ...@@ -89,4 +89,112 @@ select * from t2 order by op, a, b;
drop tables t1, t2, t3; drop tables t1, t2, t3;
# 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 5.0 tests --echo End of 5.0 tests
sql/ha_ndbcluster.cc
View file @ 3e8cf595
...@@ -2521,8 +2521,13 @@ int ha_ndbcluster::update_row(const byte *old_data, byte *new_data) ...@@ -2521,8 +2521,13 @@ int ha_ndbcluster::update_row(const byte *old_data, byte *new_data)
ERR_RETURN(op->getNdbError()); ERR_RETURN(op->getNdbError());
} }
// 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));
} }
...@@ -2563,7 +2568,7 @@ int ha_ndbcluster::delete_row(const byte *record) ...@@ -2563,7 +2568,7 @@ int ha_ndbcluster::delete_row(const byte *record)
no_uncommitted_rows_update(-1); no_uncommitted_rows_update(-1);
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);
} }
...@@ -3404,6 +3409,16 @@ int ha_ndbcluster::extra(enum ha_extra_function operation) ...@@ -3404,6 +3409,16 @@ 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;
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;
default:
break;
} }
DBUG_RETURN(0); DBUG_RETURN(0);
...@@ -3420,6 +3435,8 @@ int ha_ndbcluster::reset() ...@@ -3420,6 +3435,8 @@ int ha_ndbcluster::reset()
m_retrieve_primary_key= FALSE; m_retrieve_primary_key= FALSE;
m_ignore_dup_key= FALSE; m_ignore_dup_key= FALSE;
m_use_write= FALSE; m_use_write= FALSE;
m_delete_cannot_batch= FALSE;
m_update_cannot_batch= FALSE;
DBUG_RETURN(0); DBUG_RETURN(0);
} }
...@@ -4786,6 +4803,8 @@ ha_ndbcluster::ha_ndbcluster(TABLE *table_arg): ...@@ -4786,6 +4803,8 @@ ha_ndbcluster::ha_ndbcluster(TABLE *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 @ 3e8cf595
...@@ -774,6 +774,8 @@ bool uses_blob_value(bool all_fields); ...@@ -774,6 +774,8 @@ bool uses_blob_value(bool all_fields);
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 @ 3e8cf595
...@@ -844,6 +844,8 @@ bool mysql_insert(THD *thd,TABLE_LIST *table,List<Item> &fields, ...@@ -844,6 +844,8 @@ 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(THD *thd, TABLE *table,
enum_duplicates duplic);
void mark_fields_used_by_triggers_for_insert_stmt(THD *thd, TABLE *table, void mark_fields_used_by_triggers_for_insert_stmt(THD *thd, TABLE *table,
enum_duplicates duplic); enum_duplicates duplic);
bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds); bool mysql_prepare_delete(THD *thd, TABLE_LIST *table_list, Item **conds);
......
sql/sql_delete.cc
View file @ 3e8cf595
...@@ -217,7 +217,19 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds, ...@@ -217,7 +217,19 @@ bool mysql_delete(THD *thd, TABLE_LIST *table_list, COND *conds,
thd->proc_info="updating"; thd->proc_info="updating";
if (table->triggers) if (table->triggers)
{
table->triggers->mark_fields_used(thd, TRG_EVENT_DELETE); table->triggers->mark_fields_used(thd, TRG_EVENT_DELETE);
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);
}
}
while (!(error=info.read_record(&info)) && !thd->killed && while (!(error=info.read_record(&info)) && !thd->killed &&
!thd->net.report_error) !thd->net.report_error)
...@@ -540,7 +552,19 @@ multi_delete::initialize_tables(JOIN *join) ...@@ -540,7 +552,19 @@ multi_delete::initialize_tables(JOIN *join)
else else
normal_tables= 1; normal_tables= 1;
if (tbl->triggers) if (tbl->triggers)
{
tbl->triggers->mark_fields_used(thd, TRG_EVENT_DELETE); tbl->triggers->mark_fields_used(thd, TRG_EVENT_DELETE);
if (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);
}
}
} }
else if ((tab->type != JT_SYSTEM && tab->type != JT_CONST) && else if ((tab->type != JT_SYSTEM && tab->type != JT_CONST) &&
walk == delete_tables) walk == delete_tables)
......
sql/sql_insert.cc
View file @ 3e8cf595
...@@ -329,6 +329,51 @@ static int check_update_fields(THD *thd, TABLE_LIST *insert_table_list, ...@@ -329,6 +329,51 @@ static int check_update_fields(THD *thd, TABLE_LIST *insert_table_list,
} }
/*
Prepare triggers for INSERT-like statement.
SYNOPSIS
prepare_triggers_for_insert_stmt()
thd The current thread
table Table to which insert will happen
duplic Type of duplicate handling for insert which 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(THD *thd, TABLE *table,
enum_duplicates duplic)
{
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);
}
mark_fields_used_by_triggers_for_insert_stmt(thd, table, duplic);
}
}
/* /*
Mark fields used by triggers for INSERT-like statement. Mark fields used by triggers for INSERT-like statement.
...@@ -589,7 +634,7 @@ bool mysql_insert(THD *thd,TABLE_LIST *table_list, ...@@ -589,7 +634,7 @@ 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)));
mark_fields_used_by_triggers_for_insert_stmt(thd, table, duplic); prepare_triggers_for_insert_stmt(thd, table, duplic);
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))
...@@ -2528,8 +2573,8 @@ select_insert::prepare(List<Item> &values, SELECT_LEX_UNIT *u) ...@@ -2528,8 +2573,8 @@ 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)
mark_fields_used_by_triggers_for_insert_stmt(thd, table, prepare_triggers_for_insert_stmt(thd, table,
info.handle_duplicates); info.handle_duplicates);
DBUG_RETURN(res); DBUG_RETURN(res);
} }
......
sql/sql_load.cc
View file @ 3e8cf595
...@@ -222,7 +222,7 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list, ...@@ -222,7 +222,7 @@ bool mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
DBUG_RETURN(TRUE); DBUG_RETURN(TRUE);
} }
mark_fields_used_by_triggers_for_insert_stmt(thd, table, handle_duplicates); prepare_triggers_for_insert_stmt(thd, table, handle_duplicates);
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 @ 3e8cf595
...@@ -110,6 +110,11 @@ public: ...@@ -110,6 +110,11 @@ public:
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] != NULL);
}
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 @ 3e8cf595
...@@ -436,7 +436,19 @@ int mysql_update(THD *thd, ...@@ -436,7 +436,19 @@ int mysql_update(THD *thd,
MODE_STRICT_ALL_TABLES))); MODE_STRICT_ALL_TABLES)));
if (table->triggers) if (table->triggers)
{
table->triggers->mark_fields_used(thd, TRG_EVENT_UPDATE); table->triggers->mark_fields_used(thd, TRG_EVENT_UPDATE);
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);
}
}
/* /*
We can use compare_record() to optimize away updates if We can use compare_record() to optimize away updates if
...@@ -1001,6 +1013,20 @@ int multi_update::prepare(List<Item> &not_used_values, ...@@ -1001,6 +1013,20 @@ int multi_update::prepare(List<Item> &not_used_values,
table->no_keyread=1; table->no_keyread=1;
table->used_keys.clear_all(); table->used_keys.clear_all();
table->pos_in_table_list= tl; table->pos_in_table_list= tl;
if (table->triggers)
{
table->triggers->mark_fields_used(thd, TRG_EVENT_UPDATE);
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);
}
}
} }
} }
......
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