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