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###################### mysql-test\t\init_slave_basic.test ##################### # # # Variable Name: init_slave # # Scope: GLOBAL # # Access Type: Dynamic # # Data Type: string # # Default Value: # # Range: # # # # # # Creation Date: 2008-02-07 # # Author: Rizwan # # # # Description: Test Cases of Dynamic System Variable init_slave # # 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 init_slave TESTS ## ############################################ ############################################################# # Save initial value # ############################################################# # save using implicit session scope SET @global_start_value = @@global.init_slave; SELECT @global_start_value AS INIT_VALUE; --echo '#--------------------FN_DYNVARS_037_01------------------#' ############################################################################### # Test Variable access and assignment with and without @@ # ############################################################################### # select without @@ --error ER_BAD_FIELD_ERROR SELECT init_slave; # access using no scope specified SELECT @@init_slave; # assign value without @@ SET @@global.init_slave='SET autocomit=0'; SELECT @@global.init_slave; # using another syntax for accessing session variable SET global init_slave='SET autocomit=0'; # accessing variable with scope the wrong way --Error ER_BAD_FIELD_ERROR SELECT global init_slave; --Error ER_PARSE_ERROR SELECT @@global init_slave; --echo '#--------------------FN_DYNVARS_037_02-------------------------#' ################################################################ # Check the DEFAULT value of init_slave for global # ################################################################ SET @@global.init_slave = 'SET join_buffer_size=8200'; SET @@global.init_slave = DEFAULT; SELECT @@global.init_slave; --echo '#--------------------FN_DYNVARS_037_03-------------------------#' ###################################################################### # see if it is accessable using session scope # ###################################################################### --Error ER_GLOBAL_VARIABLE SET @@session.init_slave = ''; --Error ER_GLOBAL_VARIABLE SET @@init_slave = ""; --Error ER_INCORRECT_GLOBAL_LOCAL_VAR SELECT @@session.init_slave; --Error ER_INCORRECT_GLOBAL_LOCAL_VAR SELECT @@local.init_slave; --echo '#--------------------FN_DYNVARS_037_04-------------------------#' ####################################################################### # Change the value of init_slave to a valid value # ####################################################################### SET @@global.init_slave=""; SELECT @@global.init_slave; SET @@global.init_slave='SELECT 1,"abc"'; SELECT @@global.init_slave; SET @@global.init_slave='SET @a="b"'; SELECT @@global.init_slave; SET @@global.init_slave="SET autocomit=1;REVOKE ALL ON INFORMATION_SCHEMA.*"; SELECT @@global.init_slave; SET @@global.init_slave='SHOW VARIABLES'; SELECT @@global.init_slave; SET @@global.init_slave = NULL; SELECT @@global.init_slave; #any string is accepted as valid value as its is not verified/compiled # untill runtime SET @@global.init_slave='abc 123 +-*/'; SELECT @@global.init_slave; SET @@global.init_slave=this_will_give_syntax_error; SELECT @@global.init_slave; SET @@global.init_slave = init_slave; SELECT @@global.init_slave; --echo '#--------------------FN_DYNVARS_037_05-------------------------#' ######################################################################### # Change the value of init_slave to an invalid value for global # ######################################################################### --Error ER_WRONG_TYPE_FOR_VAR SET @@global.init_slave = true; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.init_slave = false; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.init_slave = 1.1; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.init_slave = 0; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.init_slave = 1; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.init_slave = -1; SET @@global.init_slave = ON; SELECT @@global.init_slave; --echo '#--------------------FN_DYNVARS_037_06-------------------------#' ############################################################################## # Check if the value in GLOBAL Table matches value in variable # ############################################################################## --disable_warnings SELECT @@global.init_slave = (SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='init_slave') AS res; --enable_warnings #################################### # Restore initial value # #################################### SET @@global.init_slave = @global_start_value; SELECT @@global.init_slave; ################################################### # END OF init_slave TESTS # ###################################################