Edit File: max_length_for_sort_data_basic.test
############## mysql-test\t\max_length_for_sort_data_basic.test ############### # # # Variable Name: max_length_for_sort_data # # Scope: GLOBAL | SESSION # # Access Type: Dynamic # # Data Type: numeric # # Default Value: 1024 # # Range: 4-8388608 # # # # # # Creation Date: 2008-02-07 # # Author: Salman # # # # Description: Test Cases of Dynamic System Variable max_length_for_sort_data # # that checks the behavior of this variable in the following ways# # * Default Value # # * Valid & Invalid values # # * Scope & Access method # # * Data Integrity # # # # Reference: http://dev.mysql.com/doc/refman/5.1/en/ # # server-system-variables.html # # # ############################################################################### --source include/load_sysvars.inc ##################################################### # START OF max_length_for_sort_data TESTS # ##################################################### ############################################################# # Save initial value # ############################################################# SET @start_global_value = @@global.max_length_for_sort_data; SELECT @start_global_value; SET @start_session_value = @@session.max_length_for_sort_data; SELECT @start_session_value; --echo '#--------------------FN_DYNVARS_080_01-------------------------#' ################################################################ # Display the DEFAULT value of max_length_for_sort_data # ################################################################ SET @@global.max_length_for_sort_data = 1000; SET @@global.max_length_for_sort_data = DEFAULT; SELECT @@global.max_length_for_sort_data; SET @@session.max_length_for_sort_data = 1000; SET @@session.max_length_for_sort_data = DEFAULT; SELECT @@session.max_length_for_sort_data; --echo '#--------------------FN_DYNVARS_080_02-------------------------#' ################################################################ # Check the DEFAULT value of max_length_for_sort_data # ################################################################ SET @@global.max_length_for_sort_data = DEFAULT; SELECT @@global.max_length_for_sort_data = 1024; SET @@session.max_length_for_sort_data = DEFAULT; SELECT @@session.max_length_for_sort_data = 1024; --echo '#--------------------FN_DYNVARS_080_03-------------------------#' ################################################################################## # Change the value of max_length_for_sort_data to a valid value for GLOBAL Scope # ################################################################################## SET @@global.max_length_for_sort_data = 4; SELECT @@global.max_length_for_sort_data; SET @@global.max_length_for_sort_data = 5; SELECT @@global.max_length_for_sort_data; SET @@global.max_length_for_sort_data = 8388608; SELECT @@global.max_length_for_sort_data; SET @@global.max_length_for_sort_data = 8388607; SELECT @@global.max_length_for_sort_data; SET @@global.max_length_for_sort_data = 65536; SELECT @@global.max_length_for_sort_data; --echo '#--------------------FN_DYNVARS_080_04-------------------------#' ################################################################################### # Change the value of max_length_for_sort_data to a valid value for SESSION Scope # ################################################################################### SET @@session.max_length_for_sort_data = 4; SELECT @@session.max_length_for_sort_data; SET @@session.max_length_for_sort_data = 5; SELECT @@session.max_length_for_sort_data; SET @@session.max_length_for_sort_data = 8388608; SELECT @@session.max_length_for_sort_data; SET @@session.max_length_for_sort_data = 8388607; SELECT @@session.max_length_for_sort_data; SET @@session.max_length_for_sort_data = 65536; SELECT @@session.max_length_for_sort_data; --echo '#------------------FN_DYNVARS_080_05-----------------------#' #################################################################### # Change the value of max_length_for_sort_data to an invalid value # #################################################################### SET @@global.max_length_for_sort_data = -1024; SELECT @@global.max_length_for_sort_data; SET @@global.max_length_for_sort_data = 3; SELECT @@global.max_length_for_sort_data; SET @@global.max_length_for_sort_data = 8388609; SELECT @@global.max_length_for_sort_data; SET @@global.max_length_for_sort_data = 0; SELECT @@global.max_length_for_sort_data; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.max_length_for_sort_data = 65530.34; SELECT @@global.max_length_for_sort_data; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.max_length_for_sort_data = test; SELECT @@global.max_length_for_sort_data; SET @@session.max_length_for_sort_data = 8388610; SELECT @@session.max_length_for_sort_data; SET @@session.max_length_for_sort_data = -1; SELECT @@session.max_length_for_sort_data; SET @@session.max_length_for_sort_data = 3; SELECT @@session.max_length_for_sort_data; SET @@session.max_length_for_sort_data = 0; SELECT @@session.max_length_for_sort_data; --Error ER_WRONG_TYPE_FOR_VAR SET @@session.max_length_for_sort_data = 65530.34; SET @@session.max_length_for_sort_data = 10737418241; SELECT @@session.max_length_for_sort_data; --Error ER_WRONG_TYPE_FOR_VAR SET @@session.max_length_for_sort_data = test; SELECT @@session.max_length_for_sort_data; --echo '#------------------FN_DYNVARS_080_06-----------------------#' #################################################################### # Check if the value in GLOBAL Table matches value in variable # #################################################################### SELECT @@global.max_length_for_sort_data = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='max_length_for_sort_data'; --echo '#------------------FN_DYNVARS_080_07-----------------------#' #################################################################### # Check if the value in SESSION Table matches value in variable # #################################################################### SELECT @@session.max_length_for_sort_data = VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME='max_length_for_sort_data'; --echo '#------------------FN_DYNVARS_080_08-----------------------#' #################################################################### # Check if TRUE and FALSE values can be used on variable # #################################################################### SET @@global.max_length_for_sort_data = TRUE; SELECT @@global.max_length_for_sort_data; SET @@global.max_length_for_sort_data = FALSE; SELECT @@global.max_length_for_sort_data; --echo '#---------------------FN_DYNVARS_080_09----------------------#' ################################################################################# # Check if accessing variable with and without GLOBAL point to same variable # ################################################################################# SET @@global.max_length_for_sort_data = 2048; SELECT @@max_length_for_sort_data = @@global.max_length_for_sort_data; --echo '#---------------------FN_DYNVARS_080_10----------------------#' ######################################################################################################## # Check if accessing variable with SESSION,LOCAL and without SCOPE points to same session variable # ######################################################################################################## SET @@max_length_for_sort_data = 100000; SELECT @@max_length_for_sort_data = @@local.max_length_for_sort_data; SELECT @@local.max_length_for_sort_data = @@session.max_length_for_sort_data; --echo '#---------------------FN_DYNVARS_080_11----------------------#' ################################################################################### # Check if max_length_for_sort_data can be accessed with and without @@ sign # ################################################################################### SET max_length_for_sort_data = 1024; SELECT @@max_length_for_sort_data; --Error ER_UNKNOWN_TABLE SELECT local.max_length_for_sort_data; --Error ER_UNKNOWN_TABLE SELECT session.max_length_for_sort_data; --Error ER_BAD_FIELD_ERROR SELECT max_length_for_sort_data = @@session.max_length_for_sort_data; #################################### # Restore initial value # #################################### SET @@global.max_length_for_sort_data = @start_global_value; SELECT @@global.max_length_for_sort_data; SET @@session.max_length_for_sort_data = @start_session_value; SELECT @@session.max_length_for_sort_data; ############################################################# # END OF max_length_for_sort_data TESTS # #############################################################
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