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46 lines
1.0 KiB
Plaintext
46 lines
1.0 KiB
Plaintext
DROP TABLE IF EXISTS t1;
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connect con0,localhost,root,,;
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SET lock_wait_timeout = 4;
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connect con1,localhost,root,,;
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SET lock_wait_timeout = 4;
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connect con2,localhost,root,,;
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SET lock_wait_timeout = 4;
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CREATE TABLE t1 (a <INT_COLUMN>, b <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
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INSERT INTO t1 (a,b) VALUES (1,'f'),(2,'b');
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connection con1;
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LOCK TABLE t1 READ;
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connection con0;
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UPDATE t1 SET b = CONCAT(b,b);
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connection con2;
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SELECT * FROM t1;
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connection con1;
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UNLOCK TABLES;
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connection con0;
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connection con2;
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# Should return the new data
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a b
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1 ff
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2 bb
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DROP TABLE t1;
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CREATE TABLE t1 (a <INT_COLUMN>, b <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
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INSERT INTO t1 (a,b) VALUES (1,'f'),(2,'b');
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connection con1;
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LOCK TABLE t1 READ;
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connection con0;
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UPDATE t1 SET b = CONCAT(b,b,b);
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connection con2;
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SET lock_wait_timeout = 1;
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# Should return old data
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SELECT HIGH_PRIORITY * FROM t1;
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a b
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1 f
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2 b
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connection con1;
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UNLOCK TABLES;
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connection con0;
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disconnect con1;
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disconnect con2;
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disconnect con0;
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connection default;
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DROP TABLE t1;
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