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# Bug#27189701 INNODB: EARLY RELEASE OF GAP LOCKS FOR RC
# ISOLATION [XA PREPARE]
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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
SET DEBUG_SYNC = 'lock_wait_will_wait SIGNAL con1_will_wait';
INSERT INTO t1 values(10, 100);
SET DEBUG_SYNC = 'now WAIT_FOR con1_will_wait';
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;
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