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14 lines
379 B
MySQL
14 lines
379 B
MySQL
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DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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CREATE TABLE t1 (`id` Int32, `key` String) ENGINE = Memory;
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CREATE TABLE t2 (`id` Int32, `key` String) ENGINE = Memory;
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INSERT INTO t1 VALUES (0, '');
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INSERT INTO t2 VALUES (0, '');
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SELECT * FROM t1 ANY INNER JOIN t2 ON ((NULL = t1.key) = t2.id) AND (('' = t1.key) = t2.id);
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DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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