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14 lines
291 B
Text
14 lines
291 B
Text
connection node_2;
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connection node_1;
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CREATE TABLE t1 (f1 INT DEFAULT NULL, UNIQUE KEY i1 (f1)) ENGINE=InnoDB;
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INSERT INTO t1 VALUES (NULL);
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INSERT INTO t1 VALUES (NULL);
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connection node_2;
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SELECT COUNT(*) = 2 FROM t1;
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COUNT(*) = 2
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1
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SELECT f1 IS NULL FROM t1;
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f1 IS NULL
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1
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1
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DROP TABLE t1;
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