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52 lines
2.1 KiB
Plaintext
52 lines
2.1 KiB
Plaintext
-- { echoOn }
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SELECT * FROM t1 JOIN t2 ON (t1.x <=> t2.x OR (t1.x IS NULL AND t2.x IS NULL)) ORDER BY t1.x NULLS LAST;
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2 2 2 2
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3 3 3 33
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\N \N \N \N
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SELECT * FROM t1 JOIN t2 ON (t1.x <=> t2.x OR t1.x IS NULL AND t2.x IS NULL) OR t1.y <=> t2.y ORDER BY t1.x NULLS LAST;
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1 42 4 42
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2 2 2 2
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3 3 3 33
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\N \N \N \N
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SELECT * FROM t1 JOIN t2 ON (t1.x = t2.x OR t1.x IS NULL AND t2.x IS NULL) ORDER BY t1.x;
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2 2 2 2
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3 3 3 33
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\N \N \N \N
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SELECT * FROM t1 JOIN t2 ON t1.x <=> t2.x AND ((t1.x = t1.y) OR t1.x IS NULL AND t1.y IS NULL) ORDER BY t1.x;
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2 2 2 2
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3 3 3 33
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\N \N \N \N
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SELECT * FROM t1 JOIN t2 ON (t1.x = t2.x OR t1.x IS NULL AND t2.x IS NULL) AND t1.y <=> t2.y ORDER BY t1.x NULLS LAST;
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2 2 2 2
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\N \N \N \N
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SELECT * FROM t1 JOIN t2 ON (t1.x <=> t2.x OR t1.y <=> t2.y OR (t1.x IS NULL AND t2.x IS NULL) OR (t1.y IS NULL AND t2.y IS NULL)) ORDER BY t1.x NULLS LAST;
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1 42 4 42
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2 2 2 2
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3 3 3 33
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\N \N \N \N
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SELECT * FROM t1 JOIN t2 ON (t1.x <=> t2.x OR (t1.x IS NULL AND t2.x IS NULL)) AND (t1.y == t2.y OR (t1.y IS NULL AND t2.y IS NULL)) AND COALESCE(t1.x, 0) != 2 ORDER BY t1.x NULLS LAST;
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\N \N \N \N
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SELECT x = y OR (x IS NULL AND y IS NULL) FROM t1 ORDER BY x NULLS LAST;
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0
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1
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1
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SELECT * FROM t1 JOIN t2 ON (t1.x == t2.x AND ((t2.x IS NOT NULL) AND (t1.x IS NOT NULL)) ) OR ( (t2.x IS NULL) AND (t1.x IS NULL) ) ORDER BY t1.x NULLS LAST;
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2 2 2 2
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3 3 3 33
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\N \N \N \N
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-- aliases defined in the join condition are valid
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-- FIXME(@vdimir) broken query formatting for the following queries:
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-- SELECT *, e, e2 FROM t1 FULL JOIN t2 ON ( ( ((t1.x == t2.x) AS e) AND ((t2.x IS NOT NULL) AND (t1.x IS NOT NULL)) ) OR ( (t2.x IS NULL) AND (t1.x IS NULL) ) AS e2 ) ORDER BY t1.x NULLS LAST, t2.x NULLS LAST;
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-- SELECT *, e, e2 FROM t1 FULL JOIN t2 ON ( ( ((t1.x == t2.x) AS e) AND ((t2.x IS NOT NULL) AND (t1.x IS NOT NULL)) ) AS e2 ) ORDER BY t1.x NULLS LAST, t2.x NULLS LAST;
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-- check for non-nullable columns for which `is null` is replaced with constant
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SELECT * FROM t1n as t1 JOIN t2n as t2 ON (t1.x == t2.x AND ((t2.x IS NOT NULL) AND (t1.x IS NOT NULL)) ) OR ( (t2.x IS NULL) AND (t1.x IS NULL) ) ORDER BY t1.x NULLS LAST;
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2 2 2 2
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3 3 3 33
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--
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