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46 lines
1.8 KiB
Text
46 lines
1.8 KiB
Text
#
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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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variable_name
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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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variable_name
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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 order by table_name;
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table_name
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t1
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t2
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t3
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t4
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drop table t1, t2, t3, t4;
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# End of 5.5 tests
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# INFORMATION_SCHEMA.STATISTICS doesn't show if the index is disabled
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create table t1 (a int, key(a));
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select index_name, comment from information_schema.statistics where table_schema='test' and table_name='t1';
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index_name comment
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a
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alter table t1 disable keys;
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select index_name, comment from information_schema.statistics where table_schema='test' and table_name='t1';
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index_name comment
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a disabled
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drop table t1;
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# End of 10.5 tests
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#
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# MDEV-36596 Assertion failure in TABLE_SHARE::init_from_sql_statement_string upon returning wrong type from function
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#
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create function f() returns int return (1>2,1,2);
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select * from information_schema.columns where f() is null;
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ERROR HY000: Cannot cast 'row' as 'int' in assignment of `f`
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drop function f;
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# End of 11.8 tests
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