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19 lines
992 B
Text
19 lines
992 B
Text
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#
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# MDEV-4029 SELECT on information_schema using a subquery locks up the information_schema table due to incorrect mutexes handling
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#
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select variable_name from information_schema.session_status where variable_name =
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(select variable_name from information_schema.session_status where variable_name = 'uptime');
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select variable_name from information_schema.session_variables where variable_name =
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(select variable_name from information_schema.session_variables where variable_name = 'basedir');
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#
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# MDEV-8796 Delete with sub query with information_schema.TABLES deletes too many rows
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#
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create table t1 (x int);
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create table t2 (x int);
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create table t3 (x int);
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create table t4 AS select table_name from information_schema.TABLES where table_schema = database() and table_type = 'BASE TABLE' ;
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delete from t4 where table_name not in (select table_name from information_schema.TABLES where table_schema = database() and table_type = 'BASE TABLE');
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select * from t4;
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drop table t1, t2, t3, t4;
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