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29 lines
663 B
Text
29 lines
663 B
Text
CREATE TABLE t1 (
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f1 VARCHAR(255),
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KEY (f1)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8;
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INSERT INTO t1 VALUES ('текст');
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connection node_2;
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SELECT f1 = 'текст' FROM t1;
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f1 = 'текст'
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1
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connection node_1;
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SET AUTOCOMMIT=OFF;
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START TRANSACTION;
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UPDATE t1 SET f1 = 'текст2';
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connection node_2;
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SET AUTOCOMMIT=OFF;
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START TRANSACTION;
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UPDATE t1 SET f1 = 'текст3';
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connection node_1;
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COMMIT;
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connection node_2;
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COMMIT;
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ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
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SELECT f1 = 'текст2' FROM t1;
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f1 = 'текст2'
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1
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SELECT f1 = 'текст2' FROM t1 WHERE f1 = 'текст2';
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f1 = 'текст2'
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1
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DROP TABLE t1;
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