| Current Path : /home/usr.opt/mysql57/mysql-test/suite/sys_vars/t/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : /home/usr.opt/mysql57/mysql-test/suite/sys_vars/t/optimizer_trace_features_basic.test |
--source include/have_optimizer_trace.inc SET @start_global_value = @@global.optimizer_trace_features; SELECT @start_global_value; # # exists as global and session # select @@global.optimizer_trace_features; select @@session.optimizer_trace_features; show global variables like 'optimizer_trace_features'; show session variables like 'optimizer_trace_features'; --disable_warnings select * from information_schema.global_variables where variable_name='optimizer_trace_features'; select * from information_schema.session_variables where variable_name='optimizer_trace_features'; --enable_warnings # # show that it's writable # set global optimizer_trace_features=2; select @@global.optimizer_trace_features; set session optimizer_trace_features=2; select @@session.optimizer_trace_features; set global optimizer_trace_features=0; select @@global.optimizer_trace_features; set session optimizer_trace_features=0; select @@session.optimizer_trace_features; set session optimizer_trace_features=default; select @@session.optimizer_trace_features; # # incorrect assignments # --error ER_WRONG_TYPE_FOR_VAR set global optimizer_trace_features=1.1; --error ER_WRONG_TYPE_FOR_VAR set global optimizer_trace_features=1e1; --error ER_WRONG_VALUE_FOR_VAR set session optimizer_trace_features="foobar"; SET @@global.optimizer_trace_features = @start_global_value; SELECT @@global.optimizer_trace_features;