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--echo # --echo # MDEV-4029 SELECT on information_schema using a subquery locks up the information_schema table due to incorrect mutexes handling --echo # select variable_name from information_schema.session_status where variable_name = (select variable_name from information_schema.session_status where variable_name = 'uptime'); select variable_name from information_schema.session_variables where variable_name = (select variable_name from information_schema.session_variables where variable_name = 'basedir'); --echo # --echo # MDEV-8796 Delete with sub query with information_schema.TABLES deletes too many rows --echo # create table t1 (x int); create table t2 (x int); create table t3 (x int); create table t4 AS select table_name from information_schema.TABLES where table_schema = database() and table_type = 'BASE TABLE' ; delete from t4 where table_name not in (select table_name from information_schema.TABLES where table_schema = database() and table_type = 'BASE TABLE'); select * from t4 order by table_name; drop table t1, t2, t3, t4; --echo # End of 5.5 tests --echo # INFORMATION_SCHEMA.STATISTICS doesn't show if the index is disabled create table t1 (a int, key(a)); select index_name, comment from information_schema.statistics where table_schema='test' and table_name='t1'; alter table t1 disable keys; select index_name, comment from information_schema.statistics where table_schema='test' and table_name='t1'; drop table t1; --echo # End of 10.5 tests