mirror of
https://github.com/MariaDB/server.git
synced 2025-11-03 14:33:32 +03:00
0cb90edfe5
Bug#46527 COMMIT AND CHAIN RELEASE does not make sense
Bug#53343 completion_type=1, COMMIT/ROLLBACK AND CHAIN don't
preserve the isolation level
Bug#53346 completion_type has strange effect in a stored
procedure/prepared statement
Added test cases to verify the expected behaviour of :
SET SESSION TRANSACTION ISOLATION LEVEL,
SET TRANSACTION ISOLATION LEVEL,
@@completion_type,
COMMIT AND CHAIN,
ROLLBACK AND CHAIN
..and some combinations of the above
351 lines
7.1 KiB
Plaintext
351 lines
7.1 KiB
Plaintext
--source include/have_innodb.inc
|
|
|
|
connect (con1,localhost,root,,);
|
|
|
|
--echo #
|
|
--echo # Bug#20837 Apparent change of isolation level
|
|
--echo # during transaction
|
|
--echo #
|
|
--echo # Bug#53343 completion_type=1, COMMIT/ROLLBACK
|
|
--echo # AND CHAIN don't preserve the isolation
|
|
--echo # level
|
|
#
|
|
# A set of test cases that verifies operation of
|
|
# transaction isolation level and chaining is
|
|
# provided
|
|
|
|
# init
|
|
--echo connection default;
|
|
connection default;
|
|
|
|
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
|
|
CREATE TABLE t1 (s1 INT) ENGINE=InnoDB;
|
|
INSERT INTO t1 VALUES (1),(2);
|
|
COMMIT;
|
|
|
|
#
|
|
# Verify that SET TRANS ISO LEVEL is not allowed
|
|
# inside a transaction
|
|
#
|
|
START TRANSACTION;
|
|
--error ER_CANT_CHANGE_TX_ISOLATION
|
|
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
|
|
COMMIT;
|
|
|
|
#
|
|
# Verify consistent output from
|
|
# SELECT @@tx_isolation (Bug#20837)
|
|
#
|
|
# The transaction will be in READ UNCOMMITTED mode,
|
|
# but SELECT @@tx_isolation should report the session
|
|
# value, which is REPEATABLE READ
|
|
#
|
|
SET @@autocommit=0;
|
|
COMMIT;
|
|
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
|
|
START TRANSACTION;
|
|
SELECT @@tx_isolation;
|
|
--echo Should be REPEATABLE READ
|
|
SELECT * FROM t1;
|
|
SELECT @@tx_isolation;
|
|
--echo Should be REPEATABLE READ
|
|
INSERT INTO t1 VALUES (-1);
|
|
SELECT @@tx_isolation;
|
|
--echo Should be REPEATABLE READ
|
|
COMMIT;
|
|
|
|
#
|
|
# Verify that a change in the session variable
|
|
# does not affect the currently started
|
|
# transaction
|
|
#
|
|
START TRANSACTION;
|
|
SELECT * FROM t1;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
START TRANSACTION;
|
|
INSERT INTO t1 VALUES (1000);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
--echo We should not be able to read the '1000'
|
|
SELECT * FROM t1;
|
|
COMMIT;
|
|
|
|
--echo Now, the '1000' should appear.
|
|
START TRANSACTION;
|
|
SELECT * FROM t1;
|
|
COMMIT;
|
|
|
|
# restore the session value
|
|
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
|
|
|
|
#
|
|
# A set of test cases for verification that
|
|
# isolation level during chaining works. MySQL
|
|
# has three variants of chaining, i.e
|
|
# COMMIT AND CHAIN, ROLLBACK AND CHAIN, and
|
|
# the use of @completion_type
|
|
#
|
|
|
|
#
|
|
# Verify isolation level with COMMIT AND CHAIN
|
|
#
|
|
# COMMIT AND CHAIN causes a new transaction to
|
|
# begin as soon as the current ends, and the new
|
|
# transaction will have the same tran. iso. level
|
|
# as the first.
|
|
#
|
|
--echo connection default
|
|
connection default;
|
|
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
START TRANSACTION;
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
START TRANSACTION;
|
|
INSERT INTO t1 VALUES (1001);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT COUNT(*) FROM t1 WHERE s1 = 1001;
|
|
--echo Should be 1
|
|
COMMIT AND CHAIN;
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
INSERT INTO t1 VALUES (1002);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT COUNT(*) FROM t1 WHERE s1 = 1002;
|
|
--echo Should be 1
|
|
COMMIT;
|
|
SELECT * FROM t1;
|
|
DELETE FROM t1 WHERE s1 >= 1000;
|
|
COMMIT;
|
|
|
|
#
|
|
# Verify isolation level with ROLLBACK AND CHAIN
|
|
#
|
|
--echo connection default
|
|
connection default;
|
|
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
START TRANSACTION;
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
START TRANSACTION;
|
|
INSERT INTO t1 VALUES (1001);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT COUNT(*) FROM t1 WHERE s1 = 1001;
|
|
--echo Should be 1
|
|
ROLLBACK AND CHAIN;
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
INSERT INTO t1 VALUES (1002);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT COUNT(*) FROM t1 WHERE s1 = 1002;
|
|
--echo Should be 1
|
|
COMMIT;
|
|
SELECT * FROM t1;
|
|
DELETE FROM t1 WHERE s1 >= 1000;
|
|
COMMIT;
|
|
|
|
#
|
|
# Verify isolation level with @completion_type=1.
|
|
# (A @@completion_type value of 1 is equivalentl to
|
|
# explicitly adding "AND CHAIN" to COMMIT or ROLLBACK)
|
|
#
|
|
|
|
#
|
|
# Verify that COMMIT AND NO CHAIN overrides the value
|
|
# of @@completion_type
|
|
#
|
|
SET @@completion_type=1;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
START TRANSACTION;
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
START TRANSACTION;
|
|
INSERT INTO t1 VALUES (1001);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT * FROM t1 WHERE s1 >= 1000;
|
|
--echo Should see 1001
|
|
COMMIT AND NO CHAIN;
|
|
--echo default transaction is now in REPEATABLE READ
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
INSERT INTO t1 VALUES (1002);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT * FROM t1 WHERE s1 >= 1000;
|
|
--echo Should see 1001 and 1002
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
INSERT INTO t1 VALUES (1003);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT * FROM t1 WHERE s1 >= 1000;
|
|
--echo Should see 1001 and 1002, but NOT 1003
|
|
COMMIT;
|
|
|
|
SELECT * FROM t1;
|
|
DELETE FROM t1 WHERE s1 >= 1000;
|
|
COMMIT AND NO CHAIN;
|
|
SET @@completion_type=0;
|
|
COMMIT;
|
|
|
|
#
|
|
# Verify that ROLLBACK AND NO CHAIN overrides the value
|
|
# of @@completion_type
|
|
#
|
|
--echo connection default
|
|
connection default;
|
|
SET @@completion_type=1;
|
|
COMMIT AND NO CHAIN;
|
|
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
START TRANSACTION;
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
START TRANSACTION;
|
|
INSERT INTO t1 VALUES (1001);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT * FROM t1 WHERE s1 >= 1000;
|
|
--echo Should see 1001
|
|
ROLLBACK AND NO CHAIN;
|
|
--echo default transaction is now in REPEATABLE READ
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
INSERT INTO t1 VALUES (1002);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT * FROM t1 WHERE s1 >= 1000;
|
|
--echo Should see 1001 and 1002
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
INSERT INTO t1 VALUES (1003);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT * FROM t1 WHERE s1 >= 1000;
|
|
--echo Should see 1001 and 1002, but NOT 1003
|
|
|
|
COMMIT;
|
|
SELECT * FROM t1;
|
|
DELETE FROM t1 WHERE s1 >= 1000;
|
|
COMMIT AND NO CHAIN;
|
|
SET @@completion_type=0;
|
|
COMMIT;
|
|
|
|
#
|
|
# Verify that in the sequence:
|
|
# SET TRANSACTION ISOLATION LEVEL
|
|
# SET SESSION ISOLATION LEVEL
|
|
#
|
|
# SET SESSION ISOLATION LEVEL has precedence over
|
|
# SET TRANSACTION. (Note that this is _not_
|
|
# in accordance with ISO 9075.)
|
|
#
|
|
--echo connection default
|
|
connection default;
|
|
|
|
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
SET SESSION TRANSACTION ISOLATION LEVEL REPEATABLE READ;
|
|
START TRANSACTION;
|
|
SELECT * FROM t1;
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
INSERT INTO t1 VALUES (1000);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT * FROM t1;
|
|
--echo Should get same result as above (i.e should not read '1000')
|
|
COMMIT;
|
|
|
|
DELETE FROM t1 WHERE s1 >= 1000;
|
|
COMMIT;
|
|
|
|
|
|
#
|
|
# Verify that a transaction ended with an
|
|
# implicit commit (i.e a DDL statement), the
|
|
# @@completetion_type setting is ignored, and
|
|
# the next transaction's isolation level is
|
|
# the session level.
|
|
#
|
|
SET @@completion_type=1;
|
|
COMMIT AND NO CHAIN;
|
|
SET TRANSACTION ISOLATION LEVEL READ COMMITTED;
|
|
START TRANSACTION;
|
|
TRUNCATE TABLE t1;
|
|
INSERT INTO t1 VALUES (1000);
|
|
SELECT * FROM t1;
|
|
--echo Should read '1000'
|
|
|
|
--echo connection con1
|
|
connection con1;
|
|
INSERT INTO t1 VALUES (1001);
|
|
COMMIT;
|
|
|
|
--echo connection default
|
|
connection default;
|
|
SELECT * FROM t1;
|
|
--echo Should only read the '1000' as this transaction is now in REP READ
|
|
COMMIT AND NO CHAIN;
|
|
|
|
SET @@completion_type=0;
|
|
COMMIT AND NO CHAIN;
|
|
|
|
|
|
#
|
|
# Cleanup
|
|
#
|
|
SET @autocommit=1;
|
|
COMMIT;
|
|
|
|
disconnect con1;
|
|
|
|
DROP TABLE t1;
|
|
|
|
--echo #
|
|
--echo # End of test cases for Bug#20837
|
|
--echo #
|