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