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Merged Performance Version 0.2.1 with latest 5.1 tree (last push 11 feb 14.01.13 2009)
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Mikael Ronstrom
159
mysql-test/suite/sys_vars/t/table_definition_cache_basic.test
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159
mysql-test/suite/sys_vars/t/table_definition_cache_basic.test
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############## mysql-test\t\table_definition_cache_basic.test ##################
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# #
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# Variable Name: table_definition_cache #
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# Scope: GLOBAL #
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# Access Type: Dynamic #
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# Data Type: Numeric #
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# Default Value: 400 #
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# Range: 1 - 524288 #
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# #
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# #
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# Creation Date: 2008-03-16 #
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# Author: Salman Rawala #
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# #
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# Description: Test Cases of Dynamic System Variable "table_definition_cache" #
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# that checks behavior of this variable in the following ways #
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# * Default Value #
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# * Valid & Invalid values #
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# * Scope & Access method #
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# * Data Integrity . #
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# #
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# Reference: http://dev.mysql.com/doc/refman/5.1/en/ #
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# server-system-variables.html#option_mysqld_table_definition_cache #
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# #
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################################################################################
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--source include/load_sysvars.inc
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###############################################################
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# START OF table_definition_cache TESTS #
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###############################################################
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##############################################################################
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# Saving initial value of table_definition_cache in a temporary variable #
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##############################################################################
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SET @start_value = @@global.table_definition_cache;
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SELECT @start_value;
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--echo '#--------------------FN_DYNVARS_019_01------------------------#'
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#######################################################################
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# Display the DEFAULT value of table_definition_cache #
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#######################################################################
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SET @@global.table_definition_cache = 100;
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SET @@global.table_definition_cache = DEFAULT;
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SELECT @@global.table_definition_cache;
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--echo '#---------------------FN_DYNVARS_019_02-------------------------#'
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###############################################
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# Verify default value of variable #
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###############################################
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SET @@global.table_definition_cache = DEFAULT;
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SELECT @@global.table_definition_cache = 400;
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--echo '#--------------------FN_DYNVARS_019_03------------------------#'
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##############################################################################
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# Change the value of table_definition_cache to a valid value #
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##############################################################################
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SET @@global.table_definition_cache = 1;
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SELECT @@global.table_definition_cache;
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SET @@global.table_definition_cache = 2;
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SELECT @@global.table_definition_cache;
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SET @@global.table_definition_cache = 524287;
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SELECT @@global.table_definition_cache;
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SET @@global.table_definition_cache = 524288;
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SELECT @@global.table_definition_cache;
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--echo '#--------------------FN_DYNVARS_019_04-------------------------#'
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#################################################################################
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# Change the value of table_definition_cache to invalid value #
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#################################################################################
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SET @@global.table_definition_cache = 0;
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SELECT @@global.table_definition_cache;
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SET @@global.table_definition_cache = -1024;
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SELECT @@global.table_definition_cache;
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SET @@global.table_definition_cache = 524289;
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SELECT @@global.table_definition_cache;
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SET @@global.table_definition_cache = 42949672950;
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SELECT @@global.table_definition_cache;
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--echo 'Bug # 34837: Errors are not coming on assigning invalid values to variable';
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--Error ER_WRONG_TYPE_FOR_VAR
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SET @@global.table_definition_cache = 21221204.10;
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--Error ER_WRONG_TYPE_FOR_VAR
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SET @@global.table_definition_cache = ON;
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--echo '#-------------------FN_DYNVARS_019_05----------------------------#'
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#################################################################################
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# Test if accessing session table_definition_cache gives error #
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#################################################################################
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--Error ER_GLOBAL_VARIABLE
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SET @@session.table_definition_cache = 0;
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--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
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SELECT @@session.table_definition_cache;
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--echo '#----------------------FN_DYNVARS_019_06------------------------#'
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####################################################################
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# Check if the value in GLOBAL Tables matches values in variable #
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####################################################################
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SELECT @@global.table_definition_cache = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='table_definition_cache';
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--echo '#---------------------FN_DYNVARS_019_07----------------------#'
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###################################################################
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# Check if TRUE and FALSE values can be used on variable #
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###################################################################
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SET @@global.table_definition_cache = TRUE;
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SELECT @@global.table_definition_cache;
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SET @@global.table_definition_cache = FALSE;
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SELECT @@global.table_definition_cache;
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--echo '#---------------------FN_DYNVARS_019_08----------------------#'
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###############################################################################
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# Check if accessing variable without SCOPE points to same global variable #
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###############################################################################
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SET @@global.table_definition_cache = 5;
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SELECT @@table_definition_cache = @@global.table_definition_cache;
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--echo '#---------------------FN_DYNVARS_019_09----------------------#'
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################################################################################
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# Check if table_definition_cache can be accessed with and without @@ sign #
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################################################################################
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--Error ER_GLOBAL_VARIABLE
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SET table_definition_cache = 1;
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--Error ER_PARSE_ERROR
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SET global.table_definition_cache = 1;
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--Error ER_UNKNOWN_TABLE
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SELECT global.table_definition_cache;
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--Error ER_BAD_FIELD_ERROR
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SELECT table_definition_cache = @@session.table_definition_cache;
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##############################
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# Restore initial value #
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##############################
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SET @@global.table_definition_cache = @start_value;
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SELECT @@global.table_definition_cache;
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################################################################
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# END OF table_definition_cache TESTS #
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################################################################
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