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21 lines
448 B
Plaintext
21 lines
448 B
Plaintext
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CREATE TABLE t5(a, b, c);
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CREATE UNIQUE INDEX t5ab ON t5(a, b);
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INSERT INTO t5 VALUES(1, NULL, 'one');
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INSERT INTO t5 VALUES(1, NULL, 'i');
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INSERT INTO t5 VALUES(NULL, 'x', 'two');
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INSERT INTO t5 VALUES(NULL, 'x', 'ii');
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SELECT * FROM t5 WHERE a = 1 AND b IS NULL;
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SELECT * FROM t5 WHERE a IS NULL AND b = 'x';
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CREATE TABLE t0(c0 PRIMARY KEY DESC);
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INSERT INTO t0(c0) VALUES (0);
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SELECT * FROM t0 WHERE t0.c0 > NULL;
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