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219 lines
9.8 KiB
SQL
219 lines
9.8 KiB
SQL
############## mysql-test\t\min_examined_row_limit_basic.test ###############
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# #
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# Variable Name: min_examined_row_limit #
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# Scope: GLOBAL | SESSION #
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# Access Type: Dynamic #
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# Data Type: numeric #
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# Default Value: 0 #
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# Range:0-4294967295 #
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# #
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# #
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# Creation Date: 2008-02-07 #
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# Author: Salman #
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# #
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# Description: Test Cases of Dynamic System Variable min_examined_row_limit #
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# that checks the 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 #
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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 min_examined_row_limit TESTS #
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######################################################################
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#############################################################
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# Save initial value #
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#############################################################
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SET @start_global_value = @@global.min_examined_row_limit;
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SELECT @start_global_value;
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SET @start_session_value = @@session.min_examined_row_limit;
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SELECT @start_session_value;
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--echo '#--------------------FN_DYNVARS_089_01-------------------------#'
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######################################################################
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# Display the DEFAULT value of min_examined_row_limit #
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######################################################################
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SET @@global.min_examined_row_limit = 100;
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SET @@global.min_examined_row_limit = DEFAULT;
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SELECT @@global.min_examined_row_limit;
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SET @@session.min_examined_row_limit = 200;
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SET @@session.min_examined_row_limit = DEFAULT;
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SELECT @@session.min_examined_row_limit;
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--echo '#--------------------FN_DYNVARS_089_02-------------------------#'
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########################################################################
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# Check the DEFAULT value of min_examined_row_limit #
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########################################################################
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SET @@global.min_examined_row_limit = DEFAULT;
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SELECT @@global.min_examined_row_limit = 0;
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SET @@session.min_examined_row_limit = DEFAULT;
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SELECT @@session.min_examined_row_limit = 0;
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--echo '#--------------------FN_DYNVARS_089_03-------------------------#'
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################################################################################
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# Change the value of min_examined_row_limit to a valid value for GLOBAL Scope #
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################################################################################
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SET @@global.min_examined_row_limit = 0;
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SELECT @@global.min_examined_row_limit;
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SET @@global.min_examined_row_limit = 1;
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SELECT @@global.min_examined_row_limit;
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SET @@global.min_examined_row_limit = 60020;
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SELECT @@global.min_examined_row_limit;
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SET @@global.min_examined_row_limit = 65535;
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SELECT @@global.min_examined_row_limit;
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SET @@global.min_examined_row_limit = 4294967295;
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SELECT @@global.min_examined_row_limit;
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SET @@global.min_examined_row_limit = 4294967294;
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SELECT @@global.min_examined_row_limit;
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--echo '#--------------------FN_DYNVARS_089_04-------------------------#'
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###################################################################################
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# Change the value of min_examined_row_limit to a valid value for SESSION Scope #
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###################################################################################
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SET @@session.min_examined_row_limit = 0;
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SELECT @@session.min_examined_row_limit;
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SET @@session.min_examined_row_limit = 1;
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SELECT @@session.min_examined_row_limit;
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SET @@session.min_examined_row_limit = 50050;
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SELECT @@session.min_examined_row_limit;
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SET @@session.min_examined_row_limit = 65535;
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SELECT @@session.min_examined_row_limit;
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SET @@session.min_examined_row_limit = 4294967295;
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SELECT @@session.min_examined_row_limit;
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SET @@session.min_examined_row_limit = 4294967294;
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SELECT @@session.min_examined_row_limit;
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--echo '#------------------FN_DYNVARS_089_05-----------------------#'
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####################################################################
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# Change the value of min_examined_row_limit to an invalid value #
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####################################################################
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SET @@global.min_examined_row_limit = 429496726;
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SELECT @@global.min_examined_row_limit;
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SET @@global.min_examined_row_limit = -1024;
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SELECT @@global.min_examined_row_limit;
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SET @@global.min_examined_row_limit = 429496729500;
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SELECT @@global.min_examined_row_limit;
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--Error ER_PARSE_ERROR
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SET @@global.min_examined_row_limit = 65530.34.;
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SELECT @@global.min_examined_row_limit;
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--Error ER_WRONG_TYPE_FOR_VAR
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SET @@global.min_examined_row_limit = test;
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SELECT @@global.min_examined_row_limit;
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SET @@session.min_examined_row_limit = 4294967296;
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SELECT @@session.min_examined_row_limit;
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SET @@session.min_examined_row_limit = -1;
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SELECT @@session.min_examined_row_limit;
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--Error ER_PARSE_ERROR
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SET @@session.min_examined_row_limit = 65530.34.;
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SET @@session.min_examined_row_limit = 4294967295021;
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SELECT @@session.min_examined_row_limit;
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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 @@session.min_examined_row_limit = test;
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SELECT @@session.min_examined_row_limit;
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--echo '#------------------FN_DYNVARS_089_06-----------------------#'
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####################################################################
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# Check if the value in GLOBAL Table matches value in variable #
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####################################################################
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SELECT @@global.min_examined_row_limit = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='min_examined_row_limit';
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--echo '#------------------FN_DYNVARS_089_07-----------------------#'
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####################################################################
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# Check if the value in SESSION Table matches value in variable #
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####################################################################
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SELECT @@session.min_examined_row_limit = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.SESSION_VARIABLES
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WHERE VARIABLE_NAME='min_examined_row_limit';
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--echo '#------------------FN_DYNVARS_089_08-----------------------#'
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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.min_examined_row_limit = TRUE;
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SELECT @@global.min_examined_row_limit;
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SET @@global.min_examined_row_limit = FALSE;
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SELECT @@global.min_examined_row_limit;
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--echo '#---------------------FN_DYNVARS_089_09----------------------#'
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####################################################################################
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# Check if accessing variable with and without GLOBAL point to same variable #
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####################################################################################
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SET @@global.min_examined_row_limit = 10;
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SELECT @@min_examined_row_limit = @@global.min_examined_row_limit;
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--echo '#---------------------FN_DYNVARS_089_10----------------------#'
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########################################################################################################
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# Check if accessing variable with SESSION,LOCAL and without SCOPE points to same session variable #
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########################################################################################################
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SET @@min_examined_row_limit = 100;
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SELECT @@min_examined_row_limit = @@local.min_examined_row_limit;
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SELECT @@local.min_examined_row_limit = @@session.min_examined_row_limit;
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--echo '#---------------------FN_DYNVARS_089_11----------------------#'
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###################################################################################
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# Check if min_examined_row_limit can be accessed with and without @@ sign #
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###################################################################################
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SET min_examined_row_limit = 1;
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SELECT @@min_examined_row_limit;
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--Error ER_UNKNOWN_TABLE
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SELECT local.min_examined_row_limit;
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--Error ER_UNKNOWN_TABLE
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SELECT session.min_examined_row_limit;
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--Error ER_BAD_FIELD_ERROR
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SELECT min_examined_row_limit = @@session.min_examined_row_limit;
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####################################
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# Restore initial value #
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####################################
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SET @@global.min_examined_row_limit = @start_global_value;
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SELECT @@global.min_examined_row_limit;
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SET @@session.min_examined_row_limit = @start_session_value;
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SELECT @@session.min_examined_row_limit;
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#############################################################
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# END OF min_examined_row_limit TESTS #
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#############################################################
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