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################# mysql-test\t\innodb_max_purge_lag_basic.test ################ # # # Variable Name: innodb_max_purge_lag # # Scope: GLOBAL # # Access Type: Dynamic # # Data Type: Numeric # # Default Value: 0 # # Range: 0-4294967295 # # # # # # Creation Date: 2008-02-07 # # Author: Rizwan # # # #Description:Test Cases of Dynamic System Variable innodb_max_purge_lag # # 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/have_innodb.inc --source include/load_sysvars.inc ######################################################################## # START OF innodb_max_purge_lag TESTS # ######################################################################## ################################################################################ # Saving initial value of innodb_max_purge_lag in a temporary variable # ################################################################################ SET @global_start_value = @@global.innodb_max_purge_lag; SELECT @global_start_value; --echo '#--------------------FN_DYNVARS_046_01------------------------#' ######################################################################## # Display the DEFAULT value of innodb_max_purge_lag # ######################################################################## SET @@global.innodb_max_purge_lag = 0; SET @@global.innodb_max_purge_lag = DEFAULT; SELECT @@global.innodb_max_purge_lag; --echo '#---------------------FN_DYNVARS_046_02-------------------------#' ############################################################################ # Check if innodb_max_purge_lag can be accessed with and without @@ sign # ############################################################################ --Error ER_GLOBAL_VARIABLE SET innodb_max_purge_lag = 1; SELECT @@innodb_max_purge_lag; --Error ER_UNKNOWN_TABLE SELECT local.innodb_max_purge_lag; SET global innodb_max_purge_lag = 0; SELECT @@global.innodb_max_purge_lag; --echo '#--------------------FN_DYNVARS_046_03------------------------#' ########################################################################## # change the value of innodb_max_purge_lag to a valid value # ########################################################################## SET @@global.innodb_max_purge_lag = 0; SELECT @@global.innodb_max_purge_lag; SET @@global.innodb_max_purge_lag = 1; SELECT @@global.innodb_max_purge_lag; SET @@global.innodb_max_purge_lag = 4294967295; SELECT @@global.innodb_max_purge_lag; --echo '#--------------------FN_DYNVARS_046_04------------------------#' ########################################################################## # check the value of innodb_concurrency_tickets for out of bounds # ########################################################################## # With a 64 bit mysqld:18446744073709551615,with a 32 bit mysqld: 4294967295 --disable_warnings SET @@global.innodb_max_purge_lag = 4294967296; --enable_warnings SELECT @@global.innodb_max_purge_lag IN (4294967296,4294967295); --disable_warnings SET @@global.innodb_max_purge_lag = 12345678901; --enable_warnings SELECT @@global.innodb_max_purge_lag IN (12345678901,4294967295); --disable_warnings SET @@global.innodb_max_purge_lag = 18446744073709551615; --enable_warnings SELECT @@global.innodb_max_purge_lag IN (18446744073709551615,4294967295); --echo '#--------------------FN_DYNVARS_046_05-------------------------#' ########################################################################### # Change the value of innodb_max_purge_lag to invalid value # ########################################################################### SET @@global.innodb_max_purge_lag = -1; SELECT @@global.innodb_max_purge_lag; SET @@global.innodb_max_purge_lag = -1024; SELECT @@global.innodb_max_purge_lag; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.innodb_max_purge_lag = "T"; SELECT @@global.innodb_max_purge_lag; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.innodb_max_purge_lag = "Y"; SELECT @@global.innodb_max_purge_lag; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.innodb_max_purge_lag = 1.1; SELECT @@global.innodb_max_purge_lag; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.innodb_max_purge_lag = ' '; SELECT @@global.innodb_max_purge_lag; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.innodb_max_purge_lag = " "; SELECT @@global.innodb_max_purge_lag; --echo '#----------------------FN_DYNVARS_046_06------------------------#' ######################################################################### # Check if the value in GLOBAL Table matches value in variable # ######################################################################### --disable_warnings SELECT @@global.innodb_max_purge_lag = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='innodb_max_purge_lag'; --enable_warnings SELECT @@global.innodb_max_purge_lag; --disable_warnings SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='innodb_max_purge_lag'; --enable_warnings --echo '#---------------------FN_DYNVARS_046_07-------------------------#' ################################################################### # Check if ON and OFF values can be used on variable # ################################################################### --ERROR ER_WRONG_TYPE_FOR_VAR SET @@global.innodb_max_purge_lag = OFF; SELECT @@global.innodb_max_purge_lag; --ERROR ER_WRONG_TYPE_FOR_VAR SET @@global.innodb_max_purge_lag = ON; SELECT @@global.innodb_max_purge_lag; --echo '#---------------------FN_DYNVARS_046_08----------------------#' ################################################################### # Check if TRUE and FALSE values can be used on variable # ################################################################### SET @@global.innodb_max_purge_lag = TRUE; SELECT @@global.innodb_max_purge_lag; SET @@global.innodb_max_purge_lag = FALSE; SELECT @@global.innodb_max_purge_lag; ############################## # Restore initial value # ############################## SET @@global.innodb_max_purge_lag = @global_start_value; SELECT @@global.innodb_max_purge_lag; ############################################################### # END OF innodb_max_purge_lag TESTS # ###############################################################