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a389ec0b1b
triggers". Applying ALTER/OPTIMIZE/REPAIR TABLE statements to transactional table or to table of any type on Windows caused disappearance of its triggers. Bug was introduced in 5.0.19 by my fix for bug #13525 "Rename table does not keep info of triggers" (see comment for sql_table.cc for more info). . mysql-test/r/trigger.result: Added test-case covering handling of triggers when one does ALTER TABLE which should move table to different database. mysql-test/t/trigger.test: Added test-case covering handling of triggers when one does ALTER TABLE which should move table to different database. sql/sql_table.cc: mysql_alter_table(): Removal of strdup() which is no longer necessary allows us to preserve nice assumption that "(new_db != db || new_table != table_name) indicates that table will be renamed. So now we really can use this condition to avoid updating trigger definitions when table is not renamed. Note that we can't use (alter_info->flags & ALTER_RENAME) condition instead since it can be also true when we do "ALTER TABLE t1 RENAME TO t1". sql/sql_trigger.cc: Table_triggers_list::change_table_name(): Mentioned assumption that subject table is not renamed to itself in method description. Added DBUG_ASSERT() to catch wrong usage of this method. mysql-test/r/trigger-trans.result: New BitKeeper file ``mysql-test/r/trigger-trans.result'' mysql-test/t/trigger-trans.test: New BitKeeper file ``mysql-test/t/trigger-trans.test''
84 lines
2.7 KiB
Text
84 lines
2.7 KiB
Text
drop table if exists t1;
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create table t1 (a varchar(16), b int) engine=innodb;
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create trigger t1_bi before insert on t1 for each row
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begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end|
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('The Lion', 10);
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select * from t1;
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a b
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THE LION 13
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optimize table t1;
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Table Op Msg_type Msg_text
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test.t1 optimize status OK
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('The Unicorn', 20);
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select * from t1;
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a b
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THE LION 13
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THE UNICORN 23
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alter table t1 add column c int default 0;
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('Alice', 30, 1);
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select * from t1;
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a b c
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THE LION 13 0
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THE UNICORN 23 0
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ALICE 33 1
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alter table t1 rename to t1;
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('The Crown', 40, 1);
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select * from t1;
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a b c
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THE LION 13 0
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THE UNICORN 23 0
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ALICE 33 1
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THE CROWN 43 1
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alter table t1 rename to t1, add column d int default 0;
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select trigger_schema, trigger_name, event_object_schema,
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event_object_table, action_statement from information_schema.triggers
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where event_object_schema = 'test' and event_object_table = 't1';
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trigger_schema trigger_name event_object_schema event_object_table action_statement
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test t1_bi test t1 begin
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set new.a := upper(new.a);
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set new.b := new.b + 3;
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end
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insert into t1 values ('The Pie', 50, 1, 1);
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select * from t1;
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a b c d
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THE LION 13 0 0
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THE UNICORN 23 0 0
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ALICE 33 1 0
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THE CROWN 43 1 0
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THE PIE 53 1 1
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drop table t1;
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