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--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