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6eb1eed53f
The problem was that update_timing_fields_for_event() didn't release all MDL locks it took.
31 lines
877 B
Text
31 lines
877 B
Text
--source include/not_embedded.inc
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--source include/have_innodb.inc
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#--source include/have_metadata_lock_info.inc
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#
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# Testing of problems with ALTER TABLE and events on the same table(s)
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#
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#
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# MDEV-24452 ALTER TABLE event take infinite time which for example breaks
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# mysql_upgrade
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#
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SET GLOBAL event_scheduler=1;
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CREATE TABLE t1 (a int primary key, b int) engine=innodb;
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insert into t1 values (1,1),(2,2),(3,3);
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CREATE TABLE t2 (a int primary key) engine=innodb;
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CREATE EVENT e_t1 ON SCHEDULE EVERY 1 SECOND DO insert ignore into test.t2 select a from test.t1;
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let $wait_condition=SELECT count(*) > 0 from t2;
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--source include/wait_condition.inc
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select * from t2;
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drop event e_t1;
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# select * from information_schema.metadata_lock_info;
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ALTER TABLE mysql.event DROP PRIMARY KEY, ADD PRIMARY KEY(db,name);
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drop table t1,t2;
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SET GLOBAL event_scheduler=default;
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