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############## mysql-test\t\div_precision_increment_basic.test ################# # # # Variable Name: div_precision_increment # # Scope: GLOBAL & SESSION # # Access Type: Dynamic # # Data Type: Numeric # # Default Value: 4 # # Range: 0 - 30 # # # # # # Creation Date: 2008-02-07 # # Author: Salman Rawala # # # # Description: Test Cases of Dynamic System Variable "div_precision_increment" # # that checks 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#option_mysqld_div_precision_increment # # # ################################################################################ --source include/load_sysvars.inc ####################################################################### # START OF div_precision_increment TESTS # ####################################################################### ############################################################# # Save initial value # ############################################################# SET @start_global_value = @@global.div_precision_increment; SELECT @start_global_value; SET @start_session_value = @@session.div_precision_increment; SELECT @start_session_value; --echo '#--------------------FN_DYNVARS_027_01-------------------------#' ####################################################################### # Display the DEFAULT value of div_precision_increment # ####################################################################### SET @@global.div_precision_increment = 100; SET @@global.div_precision_increment = DEFAULT; SELECT @@global.div_precision_increment; SET @@session.div_precision_increment = 200; SET @@session.div_precision_increment = DEFAULT; SELECT @@session.div_precision_increment; --echo '#--------------------FN_DYNVARS_027_02-------------------------#' ####################################################################### # Check the DEFAULT value of div_precision_increment # ####################################################################### SET @@global.div_precision_increment = @start_global_value; SELECT @@global.div_precision_increment = 4; SET @@session.div_precision_increment = @start_session_value; SELECT @@session.div_precision_increment = 4; --echo '#--------------------FN_DYNVARS_027_03-------------------------#' ################################################################################# # Change the value of div_precision_increment to a valid value for GLOBAL Scope # ################################################################################# SET @@global.div_precision_increment = 1; SELECT @@global.div_precision_increment; SET @@global.div_precision_increment = 0; SELECT @@global.div_precision_increment; SET @@global.div_precision_increment = 10; SELECT @@global.div_precision_increment; SET @@global.div_precision_increment = 30; SELECT @@global.div_precision_increment; --echo '#--------------------FN_DYNVARS_027_04-------------------------#' ################################################################################## # Change the value of div_precision_increment to a valid value for SESSION Scope # ################################################################################## SET @@session.div_precision_increment = 1; SELECT @@session.div_precision_increment; SET @@session.div_precision_increment = 0; SELECT @@session.div_precision_increment; SET @@session.div_precision_increment = 7; SELECT @@session.div_precision_increment; SET @@session.div_precision_increment = 30; SELECT @@session.div_precision_increment; --echo '#------------------FN_DYNVARS_027_05-----------------------#' ################################################################### # Change the value of div_precision_increment to an invalid value # ################################################################### SET @@global.div_precision_increment = 31; SELECT @@global.div_precision_increment; SET @@global.div_precision_increment = -1; SELECT @@global.div_precision_increment; SET @@global.div_precision_increment = -1024; SELECT @@global.div_precision_increment; SET @@global.div_precision_increment = 65536; SELECT @@global.div_precision_increment; SET @@session.div_precision_increment = -1; SELECT @@session.div_precision_increment; SET @@session.div_precision_increment = 31; SELECT @@session.div_precision_increment; SET @@session.div_precision_increment = -1042; SELECT @@session.div_precision_increment; SET @@session.div_precision_increment = 65550; SELECT @@session.div_precision_increment; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.div_precision_increment = 65530.30; SELECT @@global.div_precision_increment; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.div_precision_increment = OFF; SELECT @@global.div_precision_increment; --Error ER_WRONG_TYPE_FOR_VAR SET @@session.div_precision_increment = ON; SELECT @@session.div_precision_increment; --Error ER_WRONG_TYPE_FOR_VAR SET @@session.div_precision_increment = 65530.30; SELECT @@session.div_precision_increment; SELECT @@global.div_precision_increment; --Error ER_WRONG_TYPE_FOR_VAR SET @@global.div_precision_increment = " "; SELECT @@global.div_precision_increment; --Error ER_WRONG_TYPE_FOR_VAR SET @@session.div_precision_increment = " "; SELECT @@session.div_precision_increment; --echo '#------------------FN_DYNVARS_027_06-----------------------#' #################################################################### # Check if the value in GLOBAL Table matches value in variable # #################################################################### --disable_warnings SELECT @@global.div_precision_increment = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='div_precision_increment'; --enable_warnings --echo '#------------------FN_DYNVARS_027_07-----------------------#' #################################################################### # Check if the value in SESSION Table matches value in variable # #################################################################### --disable_warnings SELECT @@session.div_precision_increment = VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME='div_precision_increment'; --enable_warnings # FN_DYNVARS_027_07 - Check if TRUE and FALSE values can be used on variable SET @@global.div_precision_increment = TRUE; SELECT @@global.div_precision_increment; SET @@global.div_precision_increment = FALSE; SELECT @@global.div_precision_increment; --echo '#---------------------FN_DYNVARS_027_08----------------------#' #################################################################################### # Check if accessing variable with and without GLOBAL point to same variable # #################################################################################### SET @@global.div_precision_increment = 0; SELECT @@div_precision_increment = @@global.div_precision_increment; --echo '#---------------------FN_DYNVARS_027_09----------------------#' ######################################################################################################## # Check if accessing variable with SESSION,LOCAL and without SCOPE points to same session variable # ######################################################################################################## SET @@div_precision_increment = 1; SELECT @@div_precision_increment = @@local.div_precision_increment; SELECT @@local.div_precision_increment = @@session.div_precision_increment; --echo '#---------------------FN_DYNVARS_027_10----------------------#' ################################################################################## # Check if div_precision_increment can be accessed with and without @@ sign # ################################################################################## SET div_precision_increment = 1; SELECT @@div_precision_increment; --Error ER_PARSE_ERROR SET local.div_precision_increment = 1; --Error ER_UNKNOWN_TABLE SELECT local.div_precision_increment; --Error ER_PARSE_ERROR SET session.div_precision_increment = 1; --Error ER_UNKNOWN_TABLE SELECT session.div_precision_increment; --Error ER_BAD_FIELD_ERROR SELECT div_precision_increment = @@session.div_precision_increment; #################################### # Restore initial value # #################################### SET @@global.div_precision_increment = @start_global_value; SELECT @@global.div_precision_increment; SET @@session.div_precision_increment = @start_session_value; SELECT @@session.div_precision_increment; ####################################################### # END OF div_precision_increment TESTS # #######################################################