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| Current File : //home/usr.opt/mysql57/mysql-test/suite/innodb/r/xa_prepare_lock_release.result |
# # Bug#27189701 INNODB: EARLY RELEASE OF GAP LOCKS FOR RC # ISOLATION [XA PREPARE] # CREATE TABLE t1 (col1 INT PRIMARY KEY, col2 int); Connection: default SET DEBUG='+d,ib_force_release_gap_lock_prepare'; # 1.Test GAP lock only on supremum record XA START 'lock_trx'; SELECT * FROM t1; col1 col2 # Update empty table acquire GAP lock on supremum UPDATE t1 SET col2 = 100 where col1 = 10; Connection: con1 INSERT INTO t1 values(10, 100); Connection: default XA END 'lock_trx'; XA PREPARE 'lock_trx'; Connection: con1 INSERT INTO t1 values(20, 200); SELECT * FROM t1 ORDER BY col1; col1 col2 10 100 20 200 Connection: default XA COMMIT 'lock_trx'; # 2.Test GAP lock on multiple records XA START 'lock_trx_1'; # Update table acquire GAP lock on all rows UPDATE t1 SET col2 = col2 + 1; Connection: con1 INSERT INTO t1 values(5, 50); Connection: default XA END 'lock_trx_1'; XA PREPARE 'lock_trx_1'; Connection: con1 INSERT INTO t1 values(15, 150); INSERT INTO t1 values(25, 150); SELECT * FROM t1 ORDER BY col1; col1 col2 5 50 10 100 15 150 20 200 25 150 Connection: default XA COMMIT 'lock_trx_1'; SELECT * FROM t1 ORDER BY col1; col1 col2 5 50 10 101 15 150 20 201 25 150 SET DEBUG='-d,ib_force_release_gap_lock_prepare'; DROP TABLE t1;