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|
--echo #
--echo # Bug#27189701 INNODB: EARLY RELEASE OF GAP LOCKS FOR RC
--echo # ISOLATION [XA PREPARE]
--echo #
--source include/have_debug.inc
--source include/have_debug_sync.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
SET DEBUG_SYNC = 'lock_wait_will_wait SIGNAL con1_will_wait';
--send INSERT INTO t1 values(10, 100)
connection default;
SET DEBUG_SYNC = 'now WAIT_FOR con1_will_wait';
--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
|
