SET @start_value= @@global.log_queries_not_using_indexes; SET @@global.log_queries_not_using_indexes= DEFAULT; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 0 SET @@global.log_queries_not_using_indexes= TRUE; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 1 SET @@global.log_queries_not_using_indexes= true; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 1 SET @@global.log_queries_not_using_indexes= 0; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 0 SET @@global.log_queries_not_using_indexes= 1; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 1 SET @goodvar= TRUE; SET @@global.log_queries_not_using_indexes= @goodvar; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 1 SET GLOBAL log_queries_not_using_indexes= DEFAULT; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 0 SET GLOBAL log_queries_not_using_indexes= ON; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 1 SET GLOBAL log_queries_not_using_indexes= OFF; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 0 SET GLOBAL log_queries_not_using_indexes= -0; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 0 SET GLOBAL log_queries_not_using_indexes= 0.00; ERROR 42000: Incorrect argument type to variable 'log_queries_not_using_indexes' SET GLOBAL log_queries_not_using_indexes= +0; SELECT @@global.log_queries_not_using_indexes; @@global.log_queries_not_using_indexes 0 SET @@global.log_queries_not_using_indexes= 'DEFAULT'; ERROR 42000: Variable 'log_queries_not_using_indexes' can't be set to the value of 'DEFAULT' SET @@global.log_queries_not_using_indexes= 'true'; ERROR 42000: Variable 'log_queries_not_using_indexes' can't be set to the value of 'true' SET @@global.log_queries_not_using_indexes= BLABLA; ERROR 42000: Variable 'log_queries_not_using_indexes' can't be set to the value of 'BLABLA' SET @@global.log_queries_not_using_indexes= 25; ERROR 42000: Variable 'log_queries_not_using_indexes' can't be set to the value of '25' SET GLOBAL log_queries_not_using_indexes= -1; ERROR 42000: Variable 'log_queries_not_using_indexes' can't be set to the value of '-1' SET @badvar= 'true'; SET @@global.log_queries_not_using_indexes= @badvar; ERROR 42000: Variable 'log_queries_not_using_indexes' can't be set to the value of 'true' SET GLOBAL log_queries_not_using_indexes= 'DEFAULT'; ERROR 42000: Variable 'log_queries_not_using_indexes' can't be set to the value of 'DEFAULT' SET log_queries_not_using_indexes= TRUE; ERROR HY000: Variable 'log_queries_not_using_indexes' is a GLOBAL variable and should be set with SET GLOBAL SET SESSION log_queries_not_using_indexes= TRUE; ERROR HY000: Variable 'log_queries_not_using_indexes' is a GLOBAL variable and should be set with SET GLOBAL SET @@session.log_queries_not_using_indexes= TRUE; ERROR HY000: Variable 'log_queries_not_using_indexes' is a GLOBAL variable and should be set with SET GLOBAL SET LOCAL log_queries_not_using_indexes= TRUE; ERROR HY000: Variable 'log_queries_not_using_indexes' is a GLOBAL variable and should be set with SET GLOBAL SET @@global log_queries_not_using_indexes= TRUE; ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'log_queries_not_using_indexes= TRUE' at line 1 SET @@SESSION log_queries_not_using_indexes= TRUE; ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'log_queries_not_using_indexes= TRUE' at line 1 SET @@global.log_queries_not_using_indexes= @start_value;