############## mysql-test\suite\sys_vars\t\transaction_isolation_func.test ##############
#                                                                                       #
# Variable Name: transaction_isolation                                                  #
# Scope: GLOBAL & SESSION                                                               #
# Access Type: Dynamic                                                                  #
# Data Type: ENUMERATION                                                                #
# Default Value: REPEATABLE-READ                                                        #
# Values:       READ-UNCOMMITTED, READ-COMMITTED, REPEATABLE-READ, SERIALIZABLE         #
#                                                                                       #
#                                                                                       #
# Creation Date: 2008-02-25                                                             #
# Author:  Sharique Abdullah                                                            #
#                                                                                       #
# Description: Test Cases of Dynamic System Variable "transaction_isolation"            #
#              that checks behavior of this variable in the following ways              #
#              * Functionality based on different values                                #
#                                                                                       #
# Reference: http://dev.mysql.com/doc/refman/5.1/en/set-option.html                     #
#                                                                                       #
#########################################################################################

--source include/have_innodb.inc

--echo ** Setup **
#
# Setup
#

SET @session_transaction_isolation = @@SESSION.transaction_isolation;
SET @global_transaction_isolation = @@GLOBAL.transaction_isolation;

#
# Creating connections
#

connect (con0,localhost,root,,);

connection con0;

SET SESSION AUTOCOMMIT = OFF;

connect (con1, localhost, root,,);

connection con1;

SET SESSION AUTOCOMMIT = OFF;

connection default;

#
# Creating tables
#

CREATE TABLE t1 (a int PRIMARY KEY, b int) ENGINE=INNODB;

INSERT INTO t1 VALUES(2, 2);
INSERT INTO t1 VALUES(4, 4);
INSERT INTO t1 VALUES(6, 6);
INSERT INTO t1 VALUES(8, 8);
INSERT INTO t1 VALUES(16, 16);
INSERT INTO t1 VALUES(18, 18);
INSERT INTO t1 VALUES(20, 20);
INSERT INTO t1 VALUES(22, 22);
INSERT INTO t1 VALUES(24, 24);

--echo '#----------------------------FN_DYNVARS_184_01--------------------------------------#'
#
# Testing for value READ-UNCOMMITTED
#
connection con0;
SET SESSION transaction_isolation = 'READ-UNCOMMITTED';
set binlog_format=mixed;

connection con1;
SET SESSION transaction_isolation = 'READ-UNCOMMITTED';
set binlog_format=mixed;

#
# Testing WHERE on keys using IN clause
#
connection con0;

START TRANSACTION;

SELECT * FROM t1 WHERE a IN (2,4,6,8) FOR UPDATE;
UPDATE t1 SET b = 10 WHERE a IN (2,4,6,8);

connection con1;

START TRANSACTION;

SELECT * FROM t1;

INSERT INTO t1 VALUES(1, 1);
INSERT INTO t1 VALUES(3, 3);

SELECT * FROM t1;

COMMIT;

connection con0;

DELETE FROM t1 WHERE a = 1 OR a = 3;

COMMIT;

--echo '#----------------------------FN_DYNVARS_184_02--------------------------------------#'
#
# Testing WHERE on keys using # on even rows
#

connection con0;

START TRANSACTION;

SELECT * FROM t1 WHERE a % 2 = 0 FOR UPDATE;
UPDATE t1 SET b = 10 WHERE a % 2 = 0;

connection con1;

START TRANSACTION;

SELECT * FROM t1;

INSERT INTO t1 VALUES(23, 23);

INSERT INTO t1 VALUES(25, 25);

SELECT * FROM t1;

COMMIT;

connection con0;

COMMIT;

--echo '#----------------------------FN_DYNVARS_184_03--------------------------------------#'
#
# Testing for value READ-COMMITTED
#
connection con0;
SET SESSION transaction_isolation = 'READ-COMMITTED';

connection con1;
SET SESSION transaction_isolation = 'READ-COMMITTED';

#
# Testing WHERE on keys using % on even rows
#
connection con0;

START TRANSACTION;

SELECT * FROM t1 WHERE a % 2 = 0 FOR UPDATE;
UPDATE t1 SET b = 11 WHERE a % 2 = 0;

connection con1;

START TRANSACTION;

SELECT * FROM t1;

INSERT INTO t1 VALUES(5, 5);
INSERT INTO t1 VALUES(7, 7);

SELECT * FROM t1;

COMMIT;

connection con0;

COMMIT;


--echo '#----------------------------FN_DYNVARS_184_04--------------------------------------#'
#
# Testing for value REPEATABLE-READ
#
connection con0;
SET SESSION transaction_isolation = 'REPEATABLE-READ';

connection con1;
SET SESSION transaction_isolation = 'REPEATABLE-READ';

#
# Testing WHERE on keys using % on even rows
#
connection con0;

START TRANSACTION;

SELECT * FROM t1 WHERE a % 2 = 0 FOR UPDATE;
UPDATE t1 SET b = 12 WHERE a % 2 = 0;

connection con1;

START TRANSACTION;

SELECT * FROM t1;

--error ER_LOCK_WAIT_TIMEOUT
INSERT INTO t1 VALUES(9, 9);
--error ER_LOCK_WAIT_TIMEOUT
INSERT INTO t1 VALUES(13, 13);
--echo Expected error "Lock wait timeout"

SELECT * FROM t1;

COMMIT;

connection con0;

COMMIT;

--echo '#----------------------------FN_DYNVARS_184_05--------------------------------------#'
#
# Testing WHERE on keys using IN clause
#
connection con0;

START TRANSACTION;

SELECT * FROM t1 WHERE a IN (2,4,6,8,10,12,14,16,18,20,22,24,26) = 0 FOR UPDATE;
UPDATE t1 SET b = 13 WHERE a IN (2,4,6,8,10,12,14,16,18,20,22,24,26) = 0;

connection con1;

START TRANSACTION;

SELECT * FROM t1;

--error ER_LOCK_WAIT_TIMEOUT
INSERT INTO t1 VALUES(9, 9);
--error ER_LOCK_WAIT_TIMEOUT
INSERT INTO t1 VALUES(13, 13);
--echo Expected error "Lock wait timeout"

SELECT * FROM t1;

COMMIT;

connection con0;

COMMIT;

--echo '#----------------------------FN_DYNVARS_184_06--------------------------------------#'
#
# Testing WHERE on keys using IN clause
#
connection con0;

START TRANSACTION;

SELECT * FROM t1 WHERE a IN (2,4,6,8) = 0 FOR UPDATE;
UPDATE t1 SET b = 14 WHERE a IN (2,4,6,8) = 0;

connection con1;

START TRANSACTION;

SELECT * FROM t1;

--error ER_LOCK_WAIT_TIMEOUT
INSERT INTO t1 VALUES(9, 9);
--error ER_LOCK_WAIT_TIMEOUT
INSERT INTO t1 VALUES(13, 13);
--echo Expected error "Lock wait timeout"

SELECT * FROM t1;

COMMIT;

connection con0;

COMMIT;

--echo '#----------------------------FN_DYNVARS_184_07--------------------------------------#'
#
# Testing for value SERIALIZABLE
#
connection con0;
SET SESSION transaction_isolation = 'SERIALIZABLE';

connection con1;
SET SESSION transaction_isolation = 'SERIALIZABLE';

#
# Testing WHERE on keys using # on even rows
#
connection con0;

START TRANSACTION;

SELECT * FROM t1 WHERE a % 2 = 0 FOR UPDATE;
UPDATE t1 SET b = 15 WHERE a % 2 = 0;

connection con1;

START TRANSACTION;

--error ER_LOCK_WAIT_TIMEOUT
SELECT * FROM t1;

--error ER_LOCK_WAIT_TIMEOUT
INSERT INTO t1 VALUES(15, 15);
--error ER_LOCK_WAIT_TIMEOUT
INSERT INTO t1 VALUES(17, 17);

--error ER_LOCK_WAIT_TIMEOUT
SELECT * FROM t1;

COMMIT;

connection con0;

COMMIT;


--echo '#----------------------------FN_DYNVARS_184_08--------------------------------------#'
#
# Session data integrity check & GLOBAL Value check
#

SET GLOBAL transaction_isolation = 'READ-UNCOMMITTED';
connect (con_int1,localhost,root,,);

connection con_int1;
SELECT @@SESSION.transaction_isolation;
--echo READ-UNCOMMITTED Expected

SET SESSION transaction_isolation = 'SERIALIZABLE';

connect (con_int2,localhost,root,,);

connection con_int2;
SELECT @@SESSION.transaction_isolation;
--echo READ-UNCOMMITTED Expected

SET SESSION transaction_isolation = 'REPEATABLE-READ';

connection con_int2;
SELECT @@SESSION.transaction_isolation;
--echo REPEATABLE-READ Expected

connection con_int1;
SELECT @@SESSION.transaction_isolation;
--echo SERIALIZABLE Expected


SELECT @@GLOBAL.transaction_isolation;
--echo READ-UNCOMMITTED Expected

connection default;

disconnect con_int1;
disconnect con_int2;

#
# Cleanup
#

SET @@SESSION.transaction_isolation = @session_transaction_isolation;
SET @@GLOBAL.transaction_isolation = @global_transaction_isolation;

connection default;
disconnect con0;
disconnect con1;

DROP TABLE t1;