sys_vars.expensive_subquery_limit_basic

mysql-test/suite/sys_vars/r/all_vars.result

@@ -10,6 +10,5 @@ there should be *no* long test name listed below:
 select distinct variable_name as `there should be *no* variables listed below:` from t2
 left join t1 on variable_name=test_name where test_name is null;
 there should be *no* variables listed below:
-expensive_subquery_limit
 drop table t1;
 drop table t2;

mysql-test/suite/sys_vars/r/expensive_subquery_limit_basic.result

+SET @start_global_value = @@global.expensive_subquery_limit;
+SELECT @start_global_value;
+@start_global_value
+100
+select @@global.expensive_subquery_limit;
+@@global.expensive_subquery_limit
+100
+select @@session.expensive_subquery_limit;
+@@session.expensive_subquery_limit
+100
+show global variables like 'expensive_subquery_limit';
+Variable_name	Value
+expensive_subquery_limit	100
+show session variables like 'expensive_subquery_limit';
+Variable_name	Value
+expensive_subquery_limit	100
+select * from information_schema.global_variables where variable_name='expensive_subquery_limit';
+VARIABLE_NAME	VARIABLE_VALUE
+EXPENSIVE_SUBQUERY_LIMIT	100
+select * from information_schema.session_variables where variable_name='expensive_subquery_limit';
+VARIABLE_NAME	VARIABLE_VALUE
+EXPENSIVE_SUBQUERY_LIMIT	100
+set global expensive_subquery_limit=10;
+set session expensive_subquery_limit=20;
+select @@global.expensive_subquery_limit;
+@@global.expensive_subquery_limit
+10
+select @@session.expensive_subquery_limit;
+@@session.expensive_subquery_limit
+20
+show global variables like 'expensive_subquery_limit';
+Variable_name	Value
+expensive_subquery_limit	10
+show session variables like 'expensive_subquery_limit';
+Variable_name	Value
+expensive_subquery_limit	20
+select * from information_schema.global_variables where variable_name='expensive_subquery_limit';
+VARIABLE_NAME	VARIABLE_VALUE
+EXPENSIVE_SUBQUERY_LIMIT	10
+select * from information_schema.session_variables where variable_name='expensive_subquery_limit';
+VARIABLE_NAME	VARIABLE_VALUE
+EXPENSIVE_SUBQUERY_LIMIT	20
+set global expensive_subquery_limit=1.1;
+ERROR 42000: Incorrect argument type to variable 'expensive_subquery_limit'
+set global expensive_subquery_limit=1e1;
+ERROR 42000: Incorrect argument type to variable 'expensive_subquery_limit'
+set global expensive_subquery_limit="foo";
+ERROR 42000: Incorrect argument type to variable 'expensive_subquery_limit'
+SET @@global.expensive_subquery_limit = @start_global_value;
+SELECT @@global.expensive_subquery_limit;
+@@global.expensive_subquery_limit
+100

mysql-test/suite/sys_vars/t/expensive_subquery_limit_basic.test

+SET @start_global_value = @@global.expensive_subquery_limit;
+SELECT @start_global_value;
+
+#
+# exists as global and session
+#
+select @@global.expensive_subquery_limit;
+select @@session.expensive_subquery_limit;
+show global variables like 'expensive_subquery_limit';
+show session variables like 'expensive_subquery_limit';
+select * from information_schema.global_variables where variable_name='expensive_subquery_limit';
+select * from information_schema.session_variables where variable_name='expensive_subquery_limit';
+
+#
+# show that it's writable
+#
+set global expensive_subquery_limit=10;
+set session expensive_subquery_limit=20;
+select @@global.expensive_subquery_limit;
+select @@session.expensive_subquery_limit;
+show global variables like 'expensive_subquery_limit';
+show session variables like 'expensive_subquery_limit';
+select * from information_schema.global_variables where variable_name='expensive_subquery_limit';
+select * from information_schema.session_variables where variable_name='expensive_subquery_limit';
+
+#
+# incorrect types
+#
+--error ER_WRONG_TYPE_FOR_VAR
+set global expensive_subquery_limit=1.1;
+--error ER_WRONG_TYPE_FOR_VAR
+set global expensive_subquery_limit=1e1;
+--error ER_WRONG_TYPE_FOR_VAR
+set global expensive_subquery_limit="foo";
+
+SET @@global.expensive_subquery_limit = @start_global_value;
+SELECT @@global.expensive_subquery_limit;
+