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#
# Test the persistent stats feature when DROPping a table or an
# index when the corresponding rows in the stats tables are locked
#
-- disable_warnings
-- disable_query_log
DROP TABLE IF EXISTS innodb_stats_drop_locked;
CREATE TABLE innodb_stats_drop_locked (c INT, KEY c_key (c))
ENGINE=INNODB STATS_PERSISTENT=1;
ANALYZE TABLE innodb_stats_drop_locked;
-- enable_warnings
-- enable_query_log
SET autocommit=0;
SELECT table_name FROM mysql.innodb_table_stats
WHERE table_name='innodb_stats_drop_locked'
FOR UPDATE;
SELECT table_name FROM mysql.innodb_index_stats
WHERE table_name='innodb_stats_drop_locked'
FOR UPDATE;
-- connect (con1,localhost,root,,)
-- connection con1
ALTER TABLE innodb_stats_drop_locked DROP INDEX c_key;
# the index should be gone
SHOW CREATE TABLE innodb_stats_drop_locked;
DROP TABLE innodb_stats_drop_locked;
# the table should be gone
SHOW TABLES;
-- connection default
-- disconnect con1
COMMIT;
# the stats should be there
SELECT table_name FROM mysql.innodb_table_stats
WHERE table_name='innodb_stats_drop_locked';
SELECT table_name FROM mysql.innodb_index_stats
WHERE table_name='innodb_stats_drop_locked';
SET autocommit=1;
--disable_query_log
call mtr.add_suppression("Unable to delete statistics for table test.innodb_stats_drop_locked: Lock wait timeout. They can be deleted later using DELETE FROM mysql.innodb_index_stats WHERE database_name");
--enable_query_log
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