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15 lines
248 B
MySQL
15 lines
248 B
MySQL
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DROP TABLE IF EXISTS test.test;
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CREATE TABLE test.test(x Int32) ENGINE = Log;
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INSERT INTO test.test VALUES (123);
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SELECT a1
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FROM
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(
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SELECT x AS a1, x AS a2 FROM test.test
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UNION ALL
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SELECT x, x FROM test.test
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);
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DROP TABLE test.test;
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