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Dir : ~/www/server/mysql/mysql-test/suite/innodb/t/

View File Name : xa_prepare_lock_release.test

--echo #
--echo # Bug#27189701 INNODB: EARLY RELEASE OF GAP LOCKS FOR RC
--echo # ISOLATION [XA PREPARE]
--echo #

--source include/have_innodb.inc
--source include/have_debug.inc
--source include/count_sessions.inc

CREATE TABLE t1 (col1 INT PRIMARY KEY, col2 int);

--echo Connection: default
SET DEBUG='+d,ib_force_release_gap_lock_prepare';

--echo # 1.Test GAP lock only on supremum record
XA START 'lock_trx';
SELECT * FROM t1;

--echo # Update empty table acquire GAP lock on supremum
UPDATE t1 SET col2 = 100 where col1 = 10;

connect (con1,localhost,root);
--echo Connection: con1
--send INSERT INTO t1 values(10, 100)

connection default;
--echo Connection: default
XA END 'lock_trx';
XA PREPARE 'lock_trx';

connection con1;
--echo Connection: con1
--reap
INSERT INTO t1 values(20, 200);
SELECT * FROM t1 ORDER BY col1;

connection default;
--echo Connection: default
XA COMMIT 'lock_trx';

--echo # 2.Test GAP lock on multiple records
XA START 'lock_trx_1';

--echo # Update table acquire GAP lock on all rows
UPDATE t1 SET col2 = col2 + 1;

connection con1;
--echo Connection: con1
--send INSERT INTO t1 values(5, 50)

connection default;
--echo Connection: default
XA END 'lock_trx_1';
XA PREPARE 'lock_trx_1';

connection con1;
--echo Connection: con1
--reap
INSERT INTO t1 values(15, 150);
INSERT INTO t1 values(25, 150);

SELECT * FROM t1 ORDER BY col1;

disconnect con1;

connection default;
--echo Connection: default
XA COMMIT 'lock_trx_1';
SELECT * FROM t1 ORDER BY col1;

SET DEBUG='-d,ib_force_release_gap_lock_prepare';

DROP TABLE t1;

--source include/wait_until_count_sessions.inc