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Dir : ~/www/server/mysql/mysql-test/suite/sys_vars/t/

View File Name : range_optimizer_max_mem_size_basic.test

#
# Basic test for range_optimizer_max_mem_size
#

--source include/load_sysvars.inc

--echo # Display the DEFAULT value of range_optimizer_max_mem_size

SET @@session.range_optimizer_max_mem_size = DEFAULT;
SELECT @@session.range_optimizer_max_mem_size;

--echo # Change the value of range_optimizer_max_mem_size to a valid
--echo # value for SESSION Scope

SET @@session.range_optimizer_max_mem_size = 4000;
SELECT @@session.range_optimizer_max_mem_size;

--echo # Change the value of the range_optimizer_max_mem_size to a 
--echo # value greater than --maximum-range-optimizer-max-mem-size
SET session range_optimizer_max_mem_size = 20000;
SELECT @@session.range_optimizer_max_mem_size;

--echo # Change the value of range_optimizer_max_mem_size to an invalid value

--Error ER_WRONG_TYPE_FOR_VAR
SET @@session.range_optimizer_max_mem_size= 'NOT_CHAR_TYPE';

SET @@session.range_optimizer_max_mem_size = -10;

--Error ER_WRONG_TYPE_FOR_VAR
SET @@session.range_optimizer_max_mem_size = 0.5;

--echo # Check if the value in session Table matches value in variable

--disable_warnings
SET @@session.range_optimizer_max_mem_size = DEFAULT;
SELECT * FROM INFORMATION_SCHEMA.SESSION_VARIABLES
WHERE VARIABLE_NAME='range_optimizer_max_mem_size';
--enable_warnings

--echo # Check if TRUE and FALSE values can be used on variable

SET @@session.range_optimizer_max_mem_size = TRUE;
SELECT @@session.range_optimizer_max_mem_size;

SET @@session.range_optimizer_max_mem_size = FALSE;
SELECT @@session.range_optimizer_max_mem_size;

--echo # Restore initial value

SET @@session.range_optimizer_max_mem_size = DEFAULT;
SELECT @@session.range_optimizer_max_mem_size;

--echo # END OF range_optimizer_max_mem_size TESTS