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d20a96f9c1
In MariaDB, we have a confusing problem where: * The transaction_isolation option can be set in a configuration file, but it cannot be set dynamically. * The tx_isolation system variable can be set dynamically, but it cannot be set in a configuration file. Therefore, we have two different names for the same thing in different contexts. This is needlessly confusing, and it complicates the documentation. The same thing applys for transaction_read_only. MySQL 5.7 solved this problem by making them into system variables. https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-20.html This commit takes a similar approach by adding new system variables and marking the original ones as deprecated. This commit also resolves some legacy problems related to SET STATEMENT and transaction_isolation.
200 lines
8.7 KiB
Plaintext
200 lines
8.7 KiB
Plaintext
######## mysql-test\suite\sys_vars\t\transaction_read_only_basic.test #########
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# #
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# Variable Name: transaction_read_only #
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# Scope: GLOBAL & SESSION #
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# Access Type: Dynamic #
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# Data Type: boolean #
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# Default Value: OFF #
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# Range: #
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# #
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# #
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# Creation Date: 2012-01-12 #
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# Author: joh #
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# #
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# Description: Test Cases of Dynamic System Variable transaction_read_only #
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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/5.6/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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--echo ####################################################################
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--echo # START OF transaction_read_only TESTS #
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--echo ####################################################################
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--echo #############################################################
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--echo # Save initial value #
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--echo #############################################################
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SET @start_global_value = @@global.transaction_read_only;
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SELECT @start_global_value;
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SET @start_session_value = @@session.transaction_read_only;
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SELECT @start_session_value;
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--echo ########################################################################
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--echo # Display the DEFAULT value of transaction_read_only #
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--echo ########################################################################
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SET @@global.transaction_read_only = ON;
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SET @@global.transaction_read_only = DEFAULT;
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SELECT @@global.transaction_read_only;
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SET @@session.transaction_read_only = ON;
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SET @@session.transaction_read_only = DEFAULT;
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SELECT @@session.transaction_read_only;
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--echo ###############################################################################
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--echo # Change the value of transaction_read_only to a valid value for GLOBAL Scope #
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--echo ###############################################################################
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SET @@global.transaction_read_only = ON;
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SELECT @@global.transaction_read_only;
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SET @@global.transaction_read_only = OFF;
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SELECT @@global.transaction_read_only;
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SET @@global.transaction_read_only = 0;
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SELECT @@global.transaction_read_only;
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SET @@global.transaction_read_only = 1;
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SELECT @@global.transaction_read_only;
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SET @@global.transaction_read_only = TRUE;
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SELECT @@global.transaction_read_only;
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SET @@global.transaction_read_only = FALSE;
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SELECT @@global.transaction_read_only;
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--echo ################################################################################
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--echo # Change the value of transaction_read_only to a valid value for SESSION Scope #
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--echo ################################################################################
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SET @@session.transaction_read_only = ON;
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SELECT @@session.transaction_read_only;
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SET @@session.transaction_read_only = OFF;
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SELECT @@session.transaction_read_only;
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SET @@session.transaction_read_only = 0;
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SELECT @@session.transaction_read_only;
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SET @@session.transaction_read_only = 1;
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SELECT @@session.transaction_read_only;
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SET @@session.transaction_read_only = TRUE;
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SELECT @@session.transaction_read_only;
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SET @@session.transaction_read_only = FALSE;
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SELECT @@session.transaction_read_only;
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--echo #################################################################
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--echo # Change the value of transaction_read_only to an invalid value #
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--echo #################################################################
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@global.transaction_read_only = 'ONN';
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@global.transaction_read_only = "OFFF";
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@global.transaction_read_only = TTRUE;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@global.transaction_read_only = FELSE;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@global.transaction_read_only = -1024;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@global.transaction_read_only = 65536;
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--Error ER_WRONG_TYPE_FOR_VAR
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SET @@global.transaction_read_only = 65530.34;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@global.transaction_read_only = test;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@session.transaction_read_only = ONN;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@session.transaction_read_only = ONF;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@session.transaction_read_only = OF;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@session.transaction_read_only = 'OFN';
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@session.transaction_read_only = -2;
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--Error ER_WRONG_TYPE_FOR_VAR
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SET @@session.transaction_read_only = 65530.34;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@session.transaction_read_only = 65550;
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--Error ER_WRONG_VALUE_FOR_VAR
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SET @@session.transaction_read_only = test;
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SELECT @@session.transaction_read_only;
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--echo ####################################################################
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--echo # Check if the value in GLOBAL Table matches value in variable #
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--echo ####################################################################
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SELECT IF(@@global.transaction_read_only, "ON", "OFF") = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
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WHERE VARIABLE_NAME='transaction_read_only';
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--echo ####################################################################
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--echo # Check if the value in SESSION Table matches value in variable #
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--echo ####################################################################
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SELECT IF(@@session.transaction_read_only, "ON", "OFF") = VARIABLE_VALUE
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FROM INFORMATION_SCHEMA.SESSION_VARIABLES
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WHERE VARIABLE_NAME='transaction_read_only';
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--echo ###############################################################################
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--echo # Check if accessing variable with and without GLOBAL point to same variable #
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--echo ###############################################################################
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SET @@transaction_read_only = OFF;
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SET @@global.transaction_read_only = ON;
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SELECT @@transaction_read_only = @@global.transaction_read_only;
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--echo ##############################################################################
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--echo # Check if accessing variable with SESSION,LOCAL and without SCOPE points #
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--echo # to same session variable #
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--echo ##############################################################################
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SET @@transaction_read_only = ON;
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SELECT @@transaction_read_only = @@local.transaction_read_only;
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SELECT @@local.transaction_read_only = @@session.transaction_read_only;
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--echo ###############################################################################
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--echo # Check if transaction_read_only can be accessed with and without @@ sign #
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--echo ###############################################################################
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--echo # @@session is synonym for SESSION
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SET @@session.transaction_read_only= 0;
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--echo # Without modifier, SET changes session variable
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SET transaction_read_only = 1;
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SELECT @@transaction_read_only;
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--echo # name1.name2 refers to database_name.table_name
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--Error ER_UNKNOWN_TABLE
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SELECT session.transaction_read_only;
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--echo ####################################
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--echo # Restore initial value #
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--echo ####################################
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SET @@global.transaction_read_only = @start_global_value;
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SELECT @@global.transaction_read_only;
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SET @@session.transaction_read_only = @start_session_value;
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SELECT @@session.transaction_read_only;
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--echo #########################################################
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--echo # END OF transaction_read_only TESTS #
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--echo #########################################################
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