95 lines
2.2 KiB
Plaintext
95 lines
2.2 KiB
Plaintext
#
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# Verify that query results are the same with and without indexes.
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#
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--source include/have_debug_sync.inc
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--source include/have_debug.inc
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--echo # Prevent background threads to acquire mdl locks, which
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--echo # the result unstable
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SET GLOBAL innodb_fast_shutdown=0;
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let $restart_parameters = restart: --debug=d,do_not_meta_lock_in_background;
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--source include/restart_mysqld.inc
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let $table = "metadata_locks";
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let $target_type = TABLE;
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let $target_schema = test;
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let $target_name = t1;
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--echo TABLE: $table
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--echo INDEXES: PK (OBJECT_INSTANCE_BEGIN), KEY (OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME), KEY (OWNER_THREAD_ID, OWNER_EVENT_ID)
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--source ../include/idx_compare_setup.inc
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--disable_query_log
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# Get an object_instance_begin
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--connection con1
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# Get MDL read lock
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LOCK TABLE t1 READ;
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--connection con2
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# User1 has a READ LOCK
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# User2 waiting for WRITE LOCK
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--send LOCK TABLE t1 write;
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--connection default
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# Wait for the LOCK TABLE t1 write to block
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let $wait_condition=
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select count(*) = 1 from performance_schema.events_waits_current
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where event_name = 'wait/lock/metadata/sql/mdl'
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and object_name = 't1';
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--source include/wait_condition.inc
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--connection default
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eval SELECT object_instance_begin, owner_event_id
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INTO @object_instance_begin, @target_event_id
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FROM performance_schema.metadata_locks
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WHERE lock_type = 'SHARED_READ_ONLY'
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AND owner_thread_id = $con1_thread_id
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LIMIT 1;
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--enable_query_log
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#DEBUG SELECT @object_instance_begin, @owner_event_id;
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--echo
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--echo ## Test OBJECT_INSTANCE_BEGIN
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let $key_group = 12;
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--source ../include/idx_compare_load.inc
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--echo
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--echo ## Test OBJECT_TYPE, OBJECT_SCHEMA, OBJECT_NAME
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let $key_group = 10;
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--source ../include/idx_compare_load.inc
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--echo
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--echo ## Test OWNER_THREAD_ID, OWNER_EVENT_ID
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--disable_query_log
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eval SET @target_thread_id = $con1_thread_id;
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--enable_query_log
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let $key_group = 1.1;
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--source ../include/idx_compare_load.inc
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--connection con1
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# User1 releases a READ LOCK
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# User2 granted a WRITE LOCK
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UNLOCK TABLES;
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--connection con2
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# Complete LOCK TABLE t1 write
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--reap
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UNLOCK TABLES;
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--connection default
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--source ../include/idx_compare_cleanup.inc
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let $restart_parameters =;
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--source include/restart_mysqld.inc
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