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Directory :  /www/server/mysql/src/mysql-test/suite/sys_vars/t/

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Current File : /www/server/mysql/src/mysql-test/suite/sys_vars/t/transaction_isolation_basic.test
--source include/load_sysvars.inc

--echo #
--echo # WL#9636: Rename tx_{read_only,isolation} variables to transaction_*
--echo #


--echo #########################################################################
--echo # Saving initial value of transaction_isolation in a temporary variable #
--echo #########################################################################

SET @global_start_value = @@global.transaction_isolation;
SELECT @global_start_value;

SET @session_start_value = @@session.transaction_isolation;
SELECT @session_start_value;

--echo #####################################################################
--echo #           Display the DEFAULT value of transaction_isolation      #
--echo #####################################################################

SET @@global.transaction_isolation = 'READ-UNCOMMITTED';
SET @@global.transaction_isolation = DEFAULT;
SELECT @@global.transaction_isolation;

SET @@session.transaction_isolation = DEFAULT;
SELECT @@session.transaction_isolation;

--echo ##########################################################
--echo #       Check if NULL or empty value is accepeted        #
--echo ##########################################################

--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.transaction_isolation = NULL;

--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.transaction_isolation = '';

--Error ER_WRONG_VALUE_FOR_VAR
SET @@session.transaction_isolation = NULL;

--Error ER_WRONG_VALUE_FOR_VAR
SET @@session.transaction_isolation = '';

--echo #####################################################################
--echo #     Change the value of transaction_isolation to a valid value    #
--echo #####################################################################

SET @@global.transaction_isolation = 'READ-UNCOMMITTED';
SELECT @@global.transaction_isolation;

SET @@global.transaction_isolation = 'read-COMMITTED';
SELECT @@global.transaction_isolation;

SET @@global.transaction_isolation = 'REPEATABLE-READ';
SELECT @@global.transaction_isolation;

SET @@global.transaction_isolation = 'SERIALIZable';
SELECT @@global.transaction_isolation;


SET @@session.transaction_isolation = 'READ-UNCOMMITTED';
SELECT @@session.transaction_isolation;

SET @@session.transaction_isolation = 'READ-COMMITTED';
SELECT @@session.transaction_isolation;

SET @@session.transaction_isolation = 'REPEATABLE-READ';
SELECT @@session.transaction_isolation;

SET @@session.transaction_isolation = 'serializable';
SELECT @@session.transaction_isolation;


--echo #######################################################################
--echo #      Change the value of transaction_isolation to invalid value     #
--echo #######################################################################

# for global scope
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.transaction_isolation = -1;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.transaction_isolation = READUNCOMMITTED;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.transaction_isolation = 'REPEATABLE';
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.transaction_isolation = OFF;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.transaction_isolation = ON;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@global.transaction_isolation = 'NON-SERIALIZABLE';

# for session scope

--Error ER_WRONG_VALUE_FOR_VAR
SET @@transaction_isolation = -1;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@transaction_isolation = READUNCOMMITTED;
--Error ER_WRONG_VALUE_FOR_VAR
SET @@transaction_isolation = 'REPEATABLE';
--Error ER_WRONG_VALUE_FOR_VAR
SET @@transaction_isolation = 'NONE';
--Error ER_WRONG_VALUE_FOR_VAR
SET @@transaction_isolation = 'ALL';

--echo #########################################################################
--echo #     Check if the value in session Table matches value in variable     #
--echo #########################################################################

--disable_warnings
SELECT @@session.transaction_isolation = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.SESSION_VARIABLES
WHERE VARIABLE_NAME='transaction_isolation';
--enable_warnings

--echo #########################################################################
--echo #     Check if the value in GLOBAL Table matches value in variable      #
--echo #########################################################################

--disable_warnings
SELECT @@global.transaction_isolation = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='transaction_isolation';
--enable_warnings


--echo ###################################################################
--echo #        Check if numbers can be used on variable                 #
--echo ###################################################################

# test if variable accepts 0,1,2
SET @@global.transaction_isolation = 0;
SELECT @@global.transaction_isolation;

SET @@global.transaction_isolation = 1;
SELECT @@global.transaction_isolation;

SET @@global.transaction_isolation = 2;
SELECT @@global.transaction_isolation;

SET @@global.transaction_isolation = 3;
SELECT @@global.transaction_isolation;

--Error ER_WRONG_TYPE_FOR_VAR
SET @@global.transaction_isolation = 0.4;

--echo ###################################################################
--echo #      Check if TRUE and FALSE values can be used on variable     #
--echo ###################################################################

SET @@global.transaction_isolation = TRUE;
SELECT @@global.transaction_isolation;
SET @@global.transaction_isolation = FALSE;
SELECT @@global.transaction_isolation;

--echo ##########################################################################
--echo # Check if transaction_isolation can be accessed with and without @@ sign#
--echo ##########################################################################

SET transaction_isolation = 'REPEATABLE-READ';

--Error ER_PARSE_ERROR
SET session.transaction_isolation = 'REPEATABLE-READ';
--Error ER_PARSE_ERROR
SET global.transaction_isolation = 'REPEATABLE-READ';
#using SET SESSION|GLOBAL syntax
SET session transaction_isolation = 'REPEATABLE-READ';
SELECT @@transaction_isolation;

SET global transaction_isolation = 'REPEATABLE-READ';
SELECT @@global.transaction_isolation;

--echo ##############################
--echo #   Restore initial value    #
--echo ##############################

SET @@global.transaction_isolation = @global_start_value;
SELECT @@global.transaction_isolation;

SET @@session.transaction_isolation = @session_start_value;
SELECT @@session.transaction_isolation;

--echo ####################################################################
--echo #                    END OF transaction_isolation TESTS            #
--echo ####################################################################

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