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| Current File : //usr/opt/mysql57/mysql-test/suite/sys_vars/t/have_compress_basic.test |
################## mysql-test\t\have_compress_basic.test ###################### # # # Variable Name: have_compress # # Scope: Global # # Access Type: Static # # Data Type: boolean # # # # # # Creation Date: 2008-02-07 # # Author : Sharique Abdullah # # # # # # Description:Test Cases of Dynamic System Variable have_compress # # that checks the behavior of this variable in the following ways # # * Value Check # # * Scope Check # # # # Reference: http://dev.mysql.com/doc/refman/5.1/en/ # # server-system-variables.html # # # ############################################################################### --echo '#---------------------BS_STVARS_006_01----------------------#' #################################################################### # Displaying default value # #################################################################### SELECT COUNT(@@GLOBAL.have_compress); --echo 1 Expected --echo '#---------------------BS_STVARS_006_02----------------------#' #################################################################### # Check if Value can set # #################################################################### --error ER_INCORRECT_GLOBAL_LOCAL_VAR SET @@GLOBAL.have_compress=1; --echo Expected error 'Read only variable' SELECT COUNT(@@GLOBAL.have_compress); --echo 1 Expected --echo '#---------------------BS_STVARS_006_03----------------------#' ################################################################# # Check if the value in GLOBAL Table matches value in variable # ################################################################# --disable_warnings SELECT @@GLOBAL.have_compress = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='have_compress'; --enable_warnings --echo 1 Expected SELECT COUNT(@@GLOBAL.have_compress); --echo 1 Expected --disable_warnings SELECT COUNT(VARIABLE_VALUE) FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='have_compress'; --enable_warnings --echo 1 Expected --echo '#---------------------BS_STVARS_006_04----------------------#' ################################################################################ # Check if accessing variable with and without GLOBAL point to same variable # ################################################################################ SELECT @@have_compress = @@GLOBAL.have_compress; --echo 1 Expected --echo '#---------------------BS_STVARS_006_05----------------------#' ################################################################################ # Check if have_compress can be accessed with and without @@ sign # ################################################################################ SELECT COUNT(@@have_compress); --echo 1 Expected --Error ER_INCORRECT_GLOBAL_LOCAL_VAR SELECT COUNT(@@local.have_compress); --echo Expected error 'Variable is a GLOBAL variable' --Error ER_INCORRECT_GLOBAL_LOCAL_VAR SELECT COUNT(@@SESSION.have_compress); --echo Expected error 'Variable is a GLOBAL variable' SELECT COUNT(@@GLOBAL.have_compress); --echo 1 Expected --Error ER_BAD_FIELD_ERROR SELECT have_compress = @@SESSION.have_compress; --echo Expected error 'Readonly variable'