From f4fea44ce15ce8a036faf8594c140dc02825dc0c Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Thu, 26 Feb 2009 22:19:20 +0000 Subject: [PATCH] Remove outdated join_1.out regression test comparison file. This has been broken for more than a month, so evidently it's not needed, at least not for any configuration in the buildfarm. We can correct it and replace it later if we find something that still needs it. --- src/test/regress/expected/join_1.out | 2354 -------------------------- 1 file changed, 2354 deletions(-) delete mode 100644 src/test/regress/expected/join_1.out diff --git a/src/test/regress/expected/join_1.out b/src/test/regress/expected/join_1.out deleted file mode 100644 index 3032beacd4..0000000000 --- a/src/test/regress/expected/join_1.out +++ /dev/null @@ -1,2354 +0,0 @@ --- --- JOIN --- Test JOIN clauses --- -CREATE TABLE J1_TBL ( - i integer, - j integer, - t text -); -CREATE TABLE J2_TBL ( - i integer, - k integer -); -INSERT INTO J1_TBL VALUES (1, 4, 'one'); -INSERT INTO J1_TBL VALUES (2, 3, 'two'); -INSERT INTO J1_TBL VALUES (3, 2, 'three'); -INSERT INTO J1_TBL VALUES (4, 1, 'four'); -INSERT INTO J1_TBL VALUES (5, 0, 'five'); -INSERT INTO J1_TBL VALUES (6, 6, 'six'); -INSERT INTO J1_TBL VALUES (7, 7, 'seven'); -INSERT INTO J1_TBL VALUES (8, 8, 'eight'); -INSERT INTO J1_TBL VALUES (0, NULL, 'zero'); -INSERT INTO J1_TBL VALUES (NULL, NULL, 'null'); -INSERT INTO J1_TBL VALUES (NULL, 0, 'zero'); -INSERT INTO J2_TBL VALUES (1, -1); -INSERT INTO J2_TBL VALUES (2, 2); -INSERT INTO J2_TBL VALUES (3, -3); -INSERT INTO J2_TBL VALUES (2, 4); -INSERT INTO J2_TBL VALUES (5, -5); -INSERT INTO J2_TBL VALUES (5, -5); -INSERT INTO J2_TBL VALUES (0, NULL); -INSERT INTO J2_TBL VALUES (NULL, NULL); -INSERT INTO J2_TBL VALUES (NULL, 0); --- --- CORRELATION NAMES --- Make sure that table/column aliases are supported --- before diving into more complex join syntax. --- -SELECT '' AS "xxx", * - FROM J1_TBL AS tx; - xxx | i | j | t ------+---+---+------- - | 1 | 4 | one - | 2 | 3 | two - | 3 | 2 | three - | 4 | 1 | four - | 5 | 0 | five - | 6 | 6 | six - | 7 | 7 | seven - | 8 | 8 | eight - | 0 | | zero - | | | null - | | 0 | zero -(11 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL tx; - xxx | i | j | t ------+---+---+------- - | 1 | 4 | one - | 2 | 3 | two - | 3 | 2 | three - | 4 | 1 | four - | 5 | 0 | five - | 6 | 6 | six - | 7 | 7 | seven - | 8 | 8 | eight - | 0 | | zero - | | | null - | | 0 | zero -(11 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL AS t1 (a, b, c); - xxx | a | b | c ------+---+---+------- - | 1 | 4 | one - | 2 | 3 | two - | 3 | 2 | three - | 4 | 1 | four - | 5 | 0 | five - | 6 | 6 | six - | 7 | 7 | seven - | 8 | 8 | eight - | 0 | | zero - | | | null - | | 0 | zero -(11 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL t1 (a, b, c); - xxx | a | b | c ------+---+---+------- - | 1 | 4 | one - | 2 | 3 | two - | 3 | 2 | three - | 4 | 1 | four - | 5 | 0 | five - | 6 | 6 | six - | 7 | 7 | seven - | 8 | 8 | eight - | 0 | | zero - | | | null - | | 0 | zero -(11 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL t1 (a, b, c), J2_TBL t2 (d, e); - xxx | a | b | c | d | e ------+---+---+-------+---+---- - | 1 | 4 | one | 1 | -1 - | 2 | 3 | two | 1 | -1 - | 3 | 2 | three | 1 | -1 - | 4 | 1 | four | 1 | -1 - | 5 | 0 | five | 1 | -1 - | 6 | 6 | six | 1 | -1 - | 7 | 7 | seven | 1 | -1 - | 8 | 8 | eight | 1 | -1 - | 0 | | zero | 1 | -1 - | | | null | 1 | -1 - | | 0 | zero | 1 | -1 - | 1 | 4 | one | 2 | 2 - | 2 | 3 | two | 2 | 2 - | 3 | 2 | three | 2 | 2 - | 4 | 1 | four | 2 | 2 - | 5 | 0 | five | 2 | 2 - | 6 | 6 | six | 2 | 2 - | 7 | 7 | seven | 2 | 2 - | 8 | 8 | eight | 2 | 2 - | 0 | | zero | 2 | 2 - | | | null | 2 | 2 - | | 0 | zero | 2 | 2 - | 1 | 4 | one | 3 | -3 - | 2 | 3 | two | 3 | -3 - | 3 | 2 | three | 3 | -3 - | 4 | 1 | four | 3 | -3 - | 5 | 0 | five | 3 | -3 - | 6 | 6 | six | 3 | -3 - | 7 | 7 | seven | 3 | -3 - | 8 | 8 | eight | 3 | -3 - | 0 | | zero | 3 | -3 - | | | null | 3 | -3 - | | 0 | zero | 3 | -3 - | 1 | 4 | one | 2 | 4 - | 2 | 3 | two | 2 | 4 - | 3 | 2 | three | 2 | 4 - | 4 | 1 | four | 2 | 4 - | 5 | 0 | five | 2 | 4 - | 6 | 6 | six | 2 | 4 - | 7 | 7 | seven | 2 | 4 - | 8 | 8 | eight | 2 | 4 - | 0 | | zero | 2 | 4 - | | | null | 2 | 4 - | | 0 | zero | 2 | 4 - | 1 | 4 | one | 5 | -5 - | 2 | 3 | two | 5 | -5 - | 3 | 2 | three | 5 | -5 - | 4 | 1 | four | 5 | -5 - | 5 | 0 | five | 5 | -5 - | 6 | 6 | six | 5 | -5 - | 7 | 7 | seven | 5 | -5 - | 8 | 8 | eight | 5 | -5 - | 0 | | zero | 5 | -5 - | | | null | 5 | -5 - | | 0 | zero | 5 | -5 - | 1 | 4 | one | 5 | -5 - | 2 | 3 | two | 5 | -5 - | 3 | 2 | three | 5 | -5 - | 4 | 1 | four | 5 | -5 - | 5 | 0 | five | 5 | -5 - | 6 | 6 | six | 5 | -5 - | 7 | 7 | seven | 5 | -5 - | 8 | 8 | eight | 5 | -5 - | 0 | | zero | 5 | -5 - | | | null | 5 | -5 - | | 0 | zero | 5 | -5 - | 1 | 4 | one | 0 | - | 2 | 3 | two | 0 | - | 3 | 2 | three | 0 | - | 4 | 1 | four | 0 | - | 5 | 0 | five | 0 | - | 6 | 6 | six | 0 | - | 7 | 7 | seven | 0 | - | 8 | 8 | eight | 0 | - | 0 | | zero | 0 | - | | | null | 0 | - | | 0 | zero | 0 | - | 1 | 4 | one | | - | 2 | 3 | two | | - | 3 | 2 | three | | - | 4 | 1 | four | | - | 5 | 0 | five | | - | 6 | 6 | six | | - | 7 | 7 | seven | | - | 8 | 8 | eight | | - | 0 | | zero | | - | | | null | | - | | 0 | zero | | - | 1 | 4 | one | | 0 - | 2 | 3 | two | | 0 - | 3 | 2 | three | | 0 - | 4 | 1 | four | | 0 - | 5 | 0 | five | | 0 - | 6 | 6 | six | | 0 - | 7 | 7 | seven | | 0 - | 8 | 8 | eight | | 0 - | 0 | | zero | | 0 - | | | null | | 0 - | | 0 | zero | | 0 -(99 rows) - -SELECT '' AS "xxx", t1.a, t2.e - FROM J1_TBL t1 (a, b, c), J2_TBL t2 (d, e) - WHERE t1.a = t2.d; - xxx | a | e ------+---+---- - | 0 | - | 1 | -1 - | 2 | 4 - | 2 | 2 - | 3 | -3 - | 5 | -5 - | 5 | -5 -(7 rows) - --- --- CROSS JOIN --- Qualifications are not allowed on cross joins, --- which degenerate into a standard unqualified inner join. --- -SELECT '' AS "xxx", * - FROM J1_TBL CROSS JOIN J2_TBL; - xxx | i | j | t | i | k ------+---+---+-------+---+---- - | 1 | 4 | one | 1 | -1 - | 2 | 3 | two | 1 | -1 - | 3 | 2 | three | 1 | -1 - | 4 | 1 | four | 1 | -1 - | 5 | 0 | five | 1 | -1 - | 6 | 6 | six | 1 | -1 - | 7 | 7 | seven | 1 | -1 - | 8 | 8 | eight | 1 | -1 - | 0 | | zero | 1 | -1 - | | | null | 1 | -1 - | | 0 | zero | 1 | -1 - | 1 | 4 | one | 2 | 2 - | 2 | 3 | two | 2 | 2 - | 3 | 2 | three | 2 | 2 - | 4 | 1 | four | 2 | 2 - | 5 | 0 | five | 2 | 2 - | 6 | 6 | six | 2 | 2 - | 7 | 7 | seven | 2 | 2 - | 8 | 8 | eight | 2 | 2 - | 0 | | zero | 2 | 2 - | | | null | 2 | 2 - | | 0 | zero | 2 | 2 - | 1 | 4 | one | 3 | -3 - | 2 | 3 | two | 3 | -3 - | 3 | 2 | three | 3 | -3 - | 4 | 1 | four | 3 | -3 - | 5 | 0 | five | 3 | -3 - | 6 | 6 | six | 3 | -3 - | 7 | 7 | seven | 3 | -3 - | 8 | 8 | eight | 3 | -3 - | 0 | | zero | 3 | -3 - | | | null | 3 | -3 - | | 0 | zero | 3 | -3 - | 1 | 4 | one | 2 | 4 - | 2 | 3 | two | 2 | 4 - | 3 | 2 | three | 2 | 4 - | 4 | 1 | four | 2 | 4 - | 5 | 0 | five | 2 | 4 - | 6 | 6 | six | 2 | 4 - | 7 | 7 | seven | 2 | 4 - | 8 | 8 | eight | 2 | 4 - | 0 | | zero | 2 | 4 - | | | null | 2 | 4 - | | 0 | zero | 2 | 4 - | 1 | 4 | one | 5 | -5 - | 2 | 3 | two | 5 | -5 - | 3 | 2 | three | 5 | -5 - | 4 | 1 | four | 5 | -5 - | 5 | 0 | five | 5 | -5 - | 6 | 6 | six | 5 | -5 - | 7 | 7 | seven | 5 | -5 - | 8 | 8 | eight | 5 | -5 - | 0 | | zero | 5 | -5 - | | | null | 5 | -5 - | | 0 | zero | 5 | -5 - | 1 | 4 | one | 5 | -5 - | 2 | 3 | two | 5 | -5 - | 3 | 2 | three | 5 | -5 - | 4 | 1 | four | 5 | -5 - | 5 | 0 | five | 5 | -5 - | 6 | 6 | six | 5 | -5 - | 7 | 7 | seven | 5 | -5 - | 8 | 8 | eight | 5 | -5 - | 0 | | zero | 5 | -5 - | | | null | 5 | -5 - | | 0 | zero | 5 | -5 - | 1 | 4 | one | 0 | - | 2 | 3 | two | 0 | - | 3 | 2 | three | 0 | - | 4 | 1 | four | 0 | - | 5 | 0 | five | 0 | - | 6 | 6 | six | 0 | - | 7 | 7 | seven | 0 | - | 8 | 8 | eight | 0 | - | 0 | | zero | 0 | - | | | null | 0 | - | | 0 | zero | 0 | - | 1 | 4 | one | | - | 2 | 3 | two | | - | 3 | 2 | three | | - | 4 | 1 | four | | - | 5 | 0 | five | | - | 6 | 6 | six | | - | 7 | 7 | seven | | - | 8 | 8 | eight | | - | 0 | | zero | | - | | | null | | - | | 0 | zero | | - | 1 | 4 | one | | 0 - | 2 | 3 | two | | 0 - | 3 | 2 | three | | 0 - | 4 | 1 | four | | 0 - | 5 | 0 | five | | 0 - | 6 | 6 | six | | 0 - | 7 | 7 | seven | | 0 - | 8 | 8 | eight | | 0 - | 0 | | zero | | 0 - | | | null | | 0 - | | 0 | zero | | 0 -(99 rows) - --- ambiguous column -SELECT '' AS "xxx", i, k, t - FROM J1_TBL CROSS JOIN J2_TBL; -ERROR: column reference "i" is ambiguous -LINE 1: SELECT '' AS "xxx", i, k, t - ^ --- resolve previous ambiguity by specifying the table name -SELECT '' AS "xxx", t1.i, k, t - FROM J1_TBL t1 CROSS JOIN J2_TBL t2; - xxx | i | k | t ------+---+----+------- - | 1 | -1 | one - | 2 | -1 | two - | 3 | -1 | three - | 4 | -1 | four - | 5 | -1 | five - | 6 | -1 | six - | 7 | -1 | seven - | 8 | -1 | eight - | 0 | -1 | zero - | | -1 | null - | | -1 | zero - | 1 | 2 | one - | 2 | 2 | two - | 3 | 2 | three - | 4 | 2 | four - | 5 | 2 | five - | 6 | 2 | six - | 7 | 2 | seven - | 8 | 2 | eight - | 0 | 2 | zero - | | 2 | null - | | 2 | zero - | 1 | -3 | one - | 2 | -3 | two - | 3 | -3 | three - | 4 | -3 | four - | 5 | -3 | five - | 6 | -3 | six - | 7 | -3 | seven - | 8 | -3 | eight - | 0 | -3 | zero - | | -3 | null - | | -3 | zero - | 1 | 4 | one - | 2 | 4 | two - | 3 | 4 | three - | 4 | 4 | four - | 5 | 4 | five - | 6 | 4 | six - | 7 | 4 | seven - | 8 | 4 | eight - | 0 | 4 | zero - | | 4 | null - | | 4 | zero - | 1 | -5 | one - | 2 | -5 | two - | 3 | -5 | three - | 4 | -5 | four - | 5 | -5 | five - | 6 | -5 | six - | 7 | -5 | seven - | 8 | -5 | eight - | 0 | -5 | zero - | | -5 | null - | | -5 | zero - | 1 | -5 | one - | 2 | -5 | two - | 3 | -5 | three - | 4 | -5 | four - | 5 | -5 | five - | 6 | -5 | six - | 7 | -5 | seven - | 8 | -5 | eight - | 0 | -5 | zero - | | -5 | null - | | -5 | zero - | 1 | | one - | 2 | | two - | 3 | | three - | 4 | | four - | 5 | | five - | 6 | | six - | 7 | | seven - | 8 | | eight - | 0 | | zero - | | | null - | | | zero - | 1 | | one - | 2 | | two - | 3 | | three - | 4 | | four - | 5 | | five - | 6 | | six - | 7 | | seven - | 8 | | eight - | 0 | | zero - | | | null - | | | zero - | 1 | 0 | one - | 2 | 0 | two - | 3 | 0 | three - | 4 | 0 | four - | 5 | 0 | five - | 6 | 0 | six - | 7 | 0 | seven - | 8 | 0 | eight - | 0 | 0 | zero - | | 0 | null - | | 0 | zero -(99 rows) - -SELECT '' AS "xxx", ii, tt, kk - FROM (J1_TBL CROSS JOIN J2_TBL) - AS tx (ii, jj, tt, ii2, kk); - xxx | ii | tt | kk ------+----+-------+---- - | 1 | one | -1 - | 2 | two | -1 - | 3 | three | -1 - | 4 | four | -1 - | 5 | five | -1 - | 6 | six | -1 - | 7 | seven | -1 - | 8 | eight | -1 - | 0 | zero | -1 - | | null | -1 - | | zero | -1 - | 1 | one | 2 - | 2 | two | 2 - | 3 | three | 2 - | 4 | four | 2 - | 5 | five | 2 - | 6 | six | 2 - | 7 | seven | 2 - | 8 | eight | 2 - | 0 | zero | 2 - | | null | 2 - | | zero | 2 - | 1 | one | -3 - | 2 | two | -3 - | 3 | three | -3 - | 4 | four | -3 - | 5 | five | -3 - | 6 | six | -3 - | 7 | seven | -3 - | 8 | eight | -3 - | 0 | zero | -3 - | | null | -3 - | | zero | -3 - | 1 | one | 4 - | 2 | two | 4 - | 3 | three | 4 - | 4 | four | 4 - | 5 | five | 4 - | 6 | six | 4 - | 7 | seven | 4 - | 8 | eight | 4 - | 0 | zero | 4 - | | null | 4 - | | zero | 4 - | 1 | one | -5 - | 2 | two | -5 - | 3 | three | -5 - | 4 | four | -5 - | 5 | five | -5 - | 6 | six | -5 - | 7 | seven | -5 - | 8 | eight | -5 - | 0 | zero | -5 - | | null | -5 - | | zero | -5 - | 1 | one | -5 - | 2 | two | -5 - | 3 | three | -5 - | 4 | four | -5 - | 5 | five | -5 - | 6 | six | -5 - | 7 | seven | -5 - | 8 | eight | -5 - | 0 | zero | -5 - | | null | -5 - | | zero | -5 - | 1 | one | - | 2 | two | - | 3 | three | - | 4 | four | - | 5 | five | - | 6 | six | - | 7 | seven | - | 8 | eight | - | 0 | zero | - | | null | - | | zero | - | 1 | one | - | 2 | two | - | 3 | three | - | 4 | four | - | 5 | five | - | 6 | six | - | 7 | seven | - | 8 | eight | - | 0 | zero | - | | null | - | | zero | - | 1 | one | 0 - | 2 | two | 0 - | 3 | three | 0 - | 4 | four | 0 - | 5 | five | 0 - | 6 | six | 0 - | 7 | seven | 0 - | 8 | eight | 0 - | 0 | zero | 0 - | | null | 0 - | | zero | 0 -(99 rows) - -SELECT '' AS "xxx", tx.ii, tx.jj, tx.kk - FROM (J1_TBL t1 (a, b, c) CROSS JOIN J2_TBL t2 (d, e)) - AS tx (ii, jj, tt, ii2, kk); - xxx | ii | jj | kk ------+----+----+---- - | 1 | 4 | -1 - | 2 | 3 | -1 - | 3 | 2 | -1 - | 4 | 1 | -1 - | 5 | 0 | -1 - | 6 | 6 | -1 - | 7 | 7 | -1 - | 8 | 8 | -1 - | 0 | | -1 - | | | -1 - | | 0 | -1 - | 1 | 4 | 2 - | 2 | 3 | 2 - | 3 | 2 | 2 - | 4 | 1 | 2 - | 5 | 0 | 2 - | 6 | 6 | 2 - | 7 | 7 | 2 - | 8 | 8 | 2 - | 0 | | 2 - | | | 2 - | | 0 | 2 - | 1 | 4 | -3 - | 2 | 3 | -3 - | 3 | 2 | -3 - | 4 | 1 | -3 - | 5 | 0 | -3 - | 6 | 6 | -3 - | 7 | 7 | -3 - | 8 | 8 | -3 - | 0 | | -3 - | | | -3 - | | 0 | -3 - | 1 | 4 | 4 - | 2 | 3 | 4 - | 3 | 2 | 4 - | 4 | 1 | 4 - | 5 | 0 | 4 - | 6 | 6 | 4 - | 7 | 7 | 4 - | 8 | 8 | 4 - | 0 | | 4 - | | | 4 - | | 0 | 4 - | 1 | 4 | -5 - | 2 | 3 | -5 - | 3 | 2 | -5 - | 4 | 1 | -5 - | 5 | 0 | -5 - | 6 | 6 | -5 - | 7 | 7 | -5 - | 8 | 8 | -5 - | 0 | | -5 - | | | -5 - | | 0 | -5 - | 1 | 4 | -5 - | 2 | 3 | -5 - | 3 | 2 | -5 - | 4 | 1 | -5 - | 5 | 0 | -5 - | 6 | 6 | -5 - | 7 | 7 | -5 - | 8 | 8 | -5 - | 0 | | -5 - | | | -5 - | | 0 | -5 - | 1 | 4 | - | 2 | 3 | - | 3 | 2 | - | 4 | 1 | - | 5 | 0 | - | 6 | 6 | - | 7 | 7 | - | 8 | 8 | - | 0 | | - | | | - | | 0 | - | 1 | 4 | - | 2 | 3 | - | 3 | 2 | - | 4 | 1 | - | 5 | 0 | - | 6 | 6 | - | 7 | 7 | - | 8 | 8 | - | 0 | | - | | | - | | 0 | - | 1 | 4 | 0 - | 2 | 3 | 0 - | 3 | 2 | 0 - | 4 | 1 | 0 - | 5 | 0 | 0 - | 6 | 6 | 0 - | 7 | 7 | 0 - | 8 | 8 | 0 - | 0 | | 0 - | | | 0 - | | 0 | 0 -(99 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL CROSS JOIN J2_TBL a CROSS JOIN J2_TBL b; - xxx | i | j | t | i | k | i | k ------+---+---+-------+---+----+---+---- - | 1 | 4 | one | 1 | -1 | 1 | -1 - | 2 | 3 | two | 1 | -1 | 1 | -1 - | 3 | 2 | three | 1 | -1 | 1 | -1 - | 4 | 1 | four | 1 | -1 | 1 | -1 - | 5 | 0 | five | 1 | -1 | 1 | -1 - | 6 | 6 | six | 1 | -1 | 1 | -1 - | 7 | 7 | seven | 1 | -1 | 1 | -1 - | 8 | 8 | eight | 1 | -1 | 1 | -1 - | 0 | | zero | 1 | -1 | 1 | -1 - | | | null | 1 | -1 | 1 | -1 - | | 0 | zero | 1 | -1 | 1 | -1 - | 1 | 4 | one | 1 | -1 | 2 | 2 - | 2 | 3 | two | 1 | -1 | 2 | 2 - | 3 | 2 | three | 1 | -1 | 2 | 2 - | 4 | 1 | four | 1 | -1 | 2 | 2 - | 5 | 0 | five | 1 | -1 | 2 | 2 - | 6 | 6 | six | 1 | -1 | 2 | 2 - | 7 | 7 | seven | 1 | -1 | 2 | 2 - | 8 | 8 | eight | 1 | -1 | 2 | 2 - | 0 | | zero | 1 | -1 | 2 | 2 - | | | null | 1 | -1 | 2 | 2 - | | 0 | zero | 1 | -1 | 2 | 2 - | 1 | 4 | one | 1 | -1 | 3 | -3 - | 2 | 3 | two | 1 | -1 | 3 | -3 - | 3 | 2 | three | 1 | -1 | 3 | -3 - | 4 | 1 | four | 1 | -1 | 3 | -3 - | 5 | 0 | five | 1 | -1 | 3 | -3 - | 6 | 6 | six | 1 | -1 | 3 | -3 - | 7 | 7 | seven | 1 | -1 | 3 | -3 - | 8 | 8 | eight | 1 | -1 | 3 | -3 - | 0 | | zero | 1 | -1 | 3 | -3 - | | | null | 1 | -1 | 3 | -3 - | | 0 | zero | 1 | -1 | 3 | -3 - | 1 | 4 | one | 1 | -1 | 2 | 4 - | 2 | 3 | two | 1 | -1 | 2 | 4 - | 3 | 2 | three | 1 | -1 | 2 | 4 - | 4 | 1 | four | 1 | -1 | 2 | 4 - | 5 | 0 | five | 1 | -1 | 2 | 4 - | 6 | 6 | six | 1 | -1 | 2 | 4 - | 7 | 7 | seven | 1 | -1 | 2 | 4 - | 8 | 8 | eight | 1 | -1 | 2 | 4 - | 0 | | zero | 1 | -1 | 2 | 4 - | | | null | 1 | -1 | 2 | 4 - | | 0 | zero | 1 | -1 | 2 | 4 - | 1 | 4 | one | 1 | -1 | 5 | -5 - | 2 | 3 | two | 1 | -1 | 5 | -5 - | 3 | 2 | three | 1 | -1 | 5 | -5 - | 4 | 1 | four | 1 | -1 | 5 | -5 - | 5 | 0 | five | 1 | -1 | 5 | -5 - | 6 | 6 | six | 1 | -1 | 5 | -5 - | 7 | 7 | seven | 1 | -1 | 5 | -5 - | 8 | 8 | eight | 1 | -1 | 5 | -5 - | 0 | | zero | 1 | -1 | 5 | -5 - | | | null | 1 | -1 | 5 | -5 - | | 0 | zero | 1 | -1 | 5 | -5 - | 1 | 4 | one | 1 | -1 | 5 | -5 - | 2 | 3 | two | 1 | -1 | 5 | -5 - | 3 | 2 | three | 1 | -1 | 5 | -5 - | 4 | 1 | four | 1 | -1 | 5 | -5 - | 5 | 0 | five | 1 | -1 | 5 | -5 - | 6 | 6 | six | 1 | -1 | 5 | -5 - | 7 | 7 | seven | 1 | -1 | 5 | -5 - | 8 | 8 | eight | 1 | -1 | 5 | -5 - | 0 | | zero | 1 | -1 | 5 | -5 - | | | null | 1 | -1 | 5 | -5 - | | 0 | zero | 1 | -1 | 5 | -5 - | 1 | 4 | one | 1 | -1 | 0 | - | 2 | 3 | two | 1 | -1 | 0 | - | 3 | 2 | three | 1 | -1 | 0 | - | 4 | 1 | four | 1 | -1 | 0 | - | 5 | 0 | five | 1 | -1 | 0 | - | 6 | 6 | six | 1 | -1 | 0 | - | 7 | 7 | seven | 1 | -1 | 0 | - | 8 | 8 | eight | 1 | -1 | 0 | - | 0 | | zero | 1 | -1 | 0 | - | | | null | 1 | -1 | 0 | - | | 0 | zero | 1 | -1 | 0 | - | 1 | 4 | one | 1 | -1 | | - | 2 | 3 | two | 1 | -1 | | - | 3 | 2 | three | 1 | -1 | | - | 4 | 1 | four | 1 | -1 | | - | 5 | 0 | five | 1 | -1 | | - | 6 | 6 | six | 1 | -1 | | - | 7 | 7 | seven | 1 | -1 | | - | 8 | 8 | eight | 1 | -1 | | - | 0 | | zero | 1 | -1 | | - | | | null | 1 | -1 | | - | | 0 | zero | 1 | -1 | | - | 1 | 4 | one | 1 | -1 | | 0 - | 2 | 3 | two | 1 | -1 | | 0 - | 3 | 2 | three | 1 | -1 | | 0 - | 4 | 1 | four | 1 | -1 | | 0 - | 5 | 0 | five | 1 | -1 | | 0 - | 6 | 6 | six | 1 | -1 | | 0 - | 7 | 7 | seven | 1 | -1 | | 0 - | 8 | 8 | eight | 1 | -1 | | 0 - | 0 | | zero | 1 | -1 | | 0 - | | | null | 1 | -1 | | 0 - | | 0 | zero | 1 | -1 | | 0 - | 1 | 4 | one | 2 | 2 | 1 | -1 - | 2 | 3 | two | 2 | 2 | 1 | -1 - | 3 | 2 | three | 2 | 2 | 1 | -1 - | 4 | 1 | four | 2 | 2 | 1 | -1 - | 5 | 0 | five | 2 | 2 | 1 | -1 - | 6 | 6 | six | 2 | 2 | 1 | -1 - | 7 | 7 | seven | 2 | 2 | 1 | -1 - | 8 | 8 | eight | 2 | 2 | 1 | -1 - | 0 | | zero | 2 | 2 | 1 | -1 - | | | null | 2 | 2 | 1 | -1 - | | 0 | zero | 2 | 2 | 1 | -1 - | 1 | 4 | one | 2 | 2 | 2 | 2 - | 2 | 3 | two | 2 | 2 | 2 | 2 - | 3 | 2 | three | 2 | 2 | 2 | 2 - | 4 | 1 | four | 2 | 2 | 2 | 2 - | 5 | 0 | five | 2 | 2 | 2 | 2 - | 6 | 6 | six | 2 | 2 | 2 | 2 - | 7 | 7 | seven | 2 | 2 | 2 | 2 - | 8 | 8 | eight | 2 | 2 | 2 | 2 - | 0 | | zero | 2 | 2 | 2 | 2 - | | | null | 2 | 2 | 2 | 2 - | | 0 | zero | 2 | 2 | 2 | 2 - | 1 | 4 | one | 2 | 2 | 3 | -3 - | 2 | 3 | two | 2 | 2 | 3 | -3 - | 3 | 2 | three | 2 | 2 | 3 | -3 - | 4 | 1 | four | 2 | 2 | 3 | -3 - | 5 | 0 | five | 2 | 2 | 3 | -3 - | 6 | 6 | six | 2 | 2 | 3 | -3 - | 7 | 7 | seven | 2 | 2 | 3 | -3 - | 8 | 8 | eight | 2 | 2 | 3 | -3 - | 0 | | zero | 2 | 2 | 3 | -3 - | | | null | 2 | 2 | 3 | -3 - | | 0 | zero | 2 | 2 | 3 | -3 - 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| 1 | 4 | one | 5 | -5 | 5 | -5 - | 2 | 3 | two | 5 | -5 | 5 | -5 - | 3 | 2 | three | 5 | -5 | 5 | -5 - | 4 | 1 | four | 5 | -5 | 5 | -5 - | 5 | 0 | five | 5 | -5 | 5 | -5 - | 6 | 6 | six | 5 | -5 | 5 | -5 - | 7 | 7 | seven | 5 | -5 | 5 | -5 - | 8 | 8 | eight | 5 | -5 | 5 | -5 - | 0 | | zero | 5 | -5 | 5 | -5 - | | | null | 5 | -5 | 5 | -5 - | | 0 | zero | 5 | -5 | 5 | -5 - | 1 | 4 | one | 5 | -5 | 5 | -5 - | 2 | 3 | two | 5 | -5 | 5 | -5 - | 3 | 2 | three | 5 | -5 | 5 | -5 - | 4 | 1 | four | 5 | -5 | 5 | -5 - | 5 | 0 | five | 5 | -5 | 5 | -5 - | 6 | 6 | six | 5 | -5 | 5 | -5 - | 7 | 7 | seven | 5 | -5 | 5 | -5 - | 8 | 8 | eight | 5 | -5 | 5 | -5 - | 0 | | zero | 5 | -5 | 5 | -5 - | | | null | 5 | -5 | 5 | -5 - | | 0 | zero | 5 | -5 | 5 | -5 - | 1 | 4 | one | 5 | -5 | 0 | - | 2 | 3 | two | 5 | -5 | 0 | - | 3 | 2 | three | 5 | -5 | 0 | - | 4 | 1 | four | 5 | -5 | 0 | - | 5 | 0 | five | 5 | -5 | 0 | - | 6 | 6 | six | 5 | -5 | 0 | - | 7 | 7 | seven | 5 | -5 | 0 | - | 8 | 8 | eight | 5 | -5 | 0 | - 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| 0 | | zero | 0 | | 1 | -1 - | | | null | 0 | | 1 | -1 - | | 0 | zero | 0 | | 1 | -1 - | 1 | 4 | one | 0 | | 2 | 2 - | 2 | 3 | two | 0 | | 2 | 2 - | 3 | 2 | three | 0 | | 2 | 2 - | 4 | 1 | four | 0 | | 2 | 2 - | 5 | 0 | five | 0 | | 2 | 2 - | 6 | 6 | six | 0 | | 2 | 2 - | 7 | 7 | seven | 0 | | 2 | 2 - | 8 | 8 | eight | 0 | | 2 | 2 - | 0 | | zero | 0 | | 2 | 2 - | | | null | 0 | | 2 | 2 - | | 0 | zero | 0 | | 2 | 2 - | 1 | 4 | one | 0 | | 3 | -3 - | 2 | 3 | two | 0 | | 3 | -3 - | 3 | 2 | three | 0 | | 3 | -3 - | 4 | 1 | four | 0 | | 3 | -3 - | 5 | 0 | five | 0 | | 3 | -3 - | 6 | 6 | six | 0 | | 3 | -3 - | 7 | 7 | seven | 0 | | 3 | -3 - | 8 | 8 | eight | 0 | | 3 | -3 - | 0 | | zero | 0 | | 3 | -3 - | | | null | 0 | | 3 | -3 - | | 0 | zero | 0 | | 3 | -3 - | 1 | 4 | one | 0 | | 2 | 4 - | 2 | 3 | two | 0 | | 2 | 4 - | 3 | 2 | three | 0 | | 2 | 4 - | 4 | 1 | four | 0 | | 2 | 4 - | 5 | 0 | five | 0 | | 2 | 4 - | 6 | 6 | six | 0 | | 2 | 4 - | 7 | 7 | seven | 0 | | 2 | 4 - | 8 | 8 | eight | 0 | | 2 | 4 - | 0 | | zero | 0 | | 2 | 4 - | | | null | 0 | | 2 | 4 - | | 0 | zero | 0 | | 2 | 4 - | 1 | 4 | one | 0 | | 5 | -5 - | 2 | 3 | two | 0 | | 5 | -5 - | 3 | 2 | three | 0 | | 5 | -5 - | 4 | 1 | four | 0 | | 5 | -5 - | 5 | 0 | five | 0 | | 5 | -5 - | 6 | 6 | six | 0 | | 5 | -5 - | 7 | 7 | seven | 0 | | 5 | -5 - | 8 | 8 | eight | 0 | | 5 | -5 - | 0 | | zero | 0 | | 5 | -5 - | | | null | 0 | | 5 | -5 - | | 0 | zero | 0 | | 5 | -5 - | 1 | 4 | one | 0 | | 5 | -5 - | 2 | 3 | two | 0 | | 5 | -5 - | 3 | 2 | three | 0 | | 5 | -5 - | 4 | 1 | four | 0 | | 5 | -5 - | 5 | 0 | five | 0 | | 5 | -5 - | 6 | 6 | six | 0 | | 5 | -5 - | 7 | 7 | seven | 0 | | 5 | -5 - | 8 | 8 | eight | 0 | | 5 | -5 - | 0 | | zero | 0 | | 5 | -5 - | | | null | 0 | | 5 | -5 - | | 0 | zero | 0 | | 5 | -5 - | 1 | 4 | one | 0 | | 0 | - | 2 | 3 | two | 0 | | 0 | - | 3 | 2 | three | 0 | | 0 | - | 4 | 1 | four | 0 | | 0 | - | 5 | 0 | five | 0 | | 0 | - | 6 | 6 | six | 0 | | 0 | - | 7 | 7 | seven | 0 | | 0 | - | 8 | 8 | eight | 0 | | 0 | - | 0 | | zero | 0 | | 0 | - | | | null | 0 | | 0 | - | | 0 | zero | 0 | | 0 | - | 1 | 4 | one | 0 | | | - | 2 | 3 | two | 0 | | | - | 3 | 2 | three | 0 | | | - | 4 | 1 | four | 0 | | | - | 5 | 0 | five | 0 | | | - | 6 | 6 | six | 0 | | | - | 7 | 7 | seven | 0 | | | - | 8 | 8 | eight | 0 | | | - | 0 | | zero | 0 | | | - | | | null | 0 | | | - | | 0 | zero | 0 | | | - | 1 | 4 | one | 0 | | | 0 - | 2 | 3 | two | 0 | | | 0 - | 3 | 2 | three | 0 | | | 0 - | 4 | 1 | four | 0 | | | 0 - | 5 | 0 | five | 0 | | | 0 - | 6 | 6 | six | 0 | | | 0 - | 7 | 7 | seven | 0 | | | 0 - | 8 | 8 | eight | 0 | | | 0 - | 0 | | zero | 0 | | | 0 - | | | null | 0 | | | 0 - | | 0 | zero | 0 | | | 0 - | 1 | 4 | one | | | 1 | -1 - | 2 | 3 | two | | | 1 | -1 - | 3 | 2 | three | | | 1 | -1 - | 4 | 1 | four | | | 1 | -1 - | 5 | 0 | five | | | 1 | -1 - | 6 | 6 | six | | | 1 | -1 - | 7 | 7 | seven | | | 1 | -1 - | 8 | 8 | eight | | | 1 | -1 - | 0 | | zero | | | 1 | -1 - | | | null | | | 1 | -1 - | | 0 | zero | | | 1 | -1 - | 1 | 4 | one | | | 2 | 2 - | 2 | 3 | two | | | 2 | 2 - | 3 | 2 | three | | | 2 | 2 - | 4 | 1 | four | | | 2 | 2 - | 5 | 0 | five | | | 2 | 2 - | 6 | 6 | six | | | 2 | 2 - | 7 | 7 | seven | | | 2 | 2 - | 8 | 8 | eight | | | 2 | 2 - | 0 | | zero | | | 2 | 2 - | | | null | | | 2 | 2 - | | 0 | zero | | | 2 | 2 - | 1 | 4 | one | | | 3 | -3 - | 2 | 3 | two | | | 3 | -3 - | 3 | 2 | three | | | 3 | -3 - | 4 | 1 | four | | | 3 | -3 - | 5 | 0 | five | | | 3 | -3 - | 6 | 6 | six | | | 3 | -3 - | 7 | 7 | seven | | | 3 | -3 - | 8 | 8 | eight | | | 3 | -3 - | 0 | | zero | | | 3 | -3 - | | | null | | | 3 | -3 - | | 0 | zero | | | 3 | -3 - | 1 | 4 | one | | | 2 | 4 - | 2 | 3 | two | | | 2 | 4 - | 3 | 2 | three | | | 2 | 4 - | 4 | 1 | four | | | 2 | 4 - | 5 | 0 | five | | | 2 | 4 - | 6 | 6 | six | | | 2 | 4 - | 7 | 7 | seven | | | 2 | 4 - | 8 | 8 | eight | | | 2 | 4 - | 0 | | zero | | | 2 | 4 - | | | null | | | 2 | 4 - | | 0 | zero | | | 2 | 4 - | 1 | 4 | one | | | 5 | -5 - | 2 | 3 | two | | | 5 | -5 - | 3 | 2 | three | | | 5 | -5 - | 4 | 1 | four | | | 5 | -5 - | 5 | 0 | five | | | 5 | -5 - | 6 | 6 | six | | | 5 | -5 - | 7 | 7 | seven | | | 5 | -5 - | 8 | 8 | eight | | | 5 | -5 - | 0 | | zero | | | 5 | -5 - | | | null | | | 5 | -5 - | | 0 | zero | | | 5 | -5 - | 1 | 4 | one | | | 5 | -5 - | 2 | 3 | two | | | 5 | -5 - | 3 | 2 | three | | | 5 | -5 - | 4 | 1 | four | | | 5 | -5 - | 5 | 0 | five | | | 5 | -5 - | 6 | 6 | six | | | 5 | -5 - | 7 | 7 | seven | | | 5 | -5 - | 8 | 8 | eight | | | 5 | -5 - | 0 | | zero | | | 5 | -5 - | | | null | | | 5 | -5 - | | 0 | zero | | | 5 | -5 - | 1 | 4 | one | | | 0 | - | 2 | 3 | two | | | 0 | - | 3 | 2 | three | | | 0 | - | 4 | 1 | four | | | 0 | - | 5 | 0 | five | | | 0 | - | 6 | 6 | six | | | 0 | - | 7 | 7 | seven | | | 0 | - | 8 | 8 | eight | | | 0 | - | 0 | | zero | | | 0 | - | | | null | | | 0 | - | | 0 | zero | | | 0 | - | 1 | 4 | one | | | | - | 2 | 3 | two | | | | - | 3 | 2 | three | | | | - | 4 | 1 | four | | | | - | 5 | 0 | five | | | | - | 6 | 6 | six | | | | - | 7 | 7 | seven | | | | - | 8 | 8 | eight | | | | - | 0 | | zero | | | | - | | | null | | | | - | | 0 | zero | | | | - | 1 | 4 | one | | | | 0 - | 2 | 3 | two | | | | 0 - | 3 | 2 | three | | | | 0 - | 4 | 1 | four | | | | 0 - | 5 | 0 | five | | | | 0 - | 6 | 6 | six | | | | 0 - | 7 | 7 | seven | | | | 0 - | 8 | 8 | eight | | | | 0 - | 0 | | zero | | | | 0 - | | | null | | | | 0 - | | 0 | zero | | | | 0 - | 1 | 4 | one | | 0 | 1 | -1 - | 2 | 3 | two | | 0 | 1 | -1 - | 3 | 2 | three | | 0 | 1 | -1 - | 4 | 1 | four | | 0 | 1 | -1 - | 5 | 0 | five | | 0 | 1 | -1 - | 6 | 6 | six | | 0 | 1 | -1 - | 7 | 7 | seven | | 0 | 1 | -1 - | 8 | 8 | eight | | 0 | 1 | -1 - | 0 | | zero | | 0 | 1 | -1 - | | | null | | 0 | 1 | -1 - | | 0 | zero | | 0 | 1 | -1 - | 1 | 4 | one | | 0 | 2 | 2 - | 2 | 3 | two | | 0 | 2 | 2 - | 3 | 2 | three | | 0 | 2 | 2 - | 4 | 1 | four | | 0 | 2 | 2 - | 5 | 0 | five | | 0 | 2 | 2 - | 6 | 6 | six | | 0 | 2 | 2 - | 7 | 7 | seven | | 0 | 2 | 2 - | 8 | 8 | eight | | 0 | 2 | 2 - | 0 | | zero | | 0 | 2 | 2 - | | | null | | 0 | 2 | 2 - | | 0 | zero | | 0 | 2 | 2 - | 1 | 4 | one | | 0 | 3 | -3 - | 2 | 3 | two | | 0 | 3 | -3 - | 3 | 2 | three | | 0 | 3 | -3 - | 4 | 1 | four | | 0 | 3 | -3 - | 5 | 0 | five | | 0 | 3 | -3 - | 6 | 6 | six | | 0 | 3 | -3 - | 7 | 7 | seven | | 0 | 3 | -3 - | 8 | 8 | eight | | 0 | 3 | -3 - | 0 | | zero | | 0 | 3 | -3 - | | | null | | 0 | 3 | -3 - | | 0 | zero | | 0 | 3 | -3 - | 1 | 4 | one | | 0 | 2 | 4 - | 2 | 3 | two | | 0 | 2 | 4 - | 3 | 2 | three | | 0 | 2 | 4 - | 4 | 1 | four | | 0 | 2 | 4 - | 5 | 0 | five | | 0 | 2 | 4 - | 6 | 6 | six | | 0 | 2 | 4 - | 7 | 7 | seven | | 0 | 2 | 4 - | 8 | 8 | eight | | 0 | 2 | 4 - | 0 | | zero | | 0 | 2 | 4 - | | | null | | 0 | 2 | 4 - | | 0 | zero | | 0 | 2 | 4 - | 1 | 4 | one | | 0 | 5 | -5 - | 2 | 3 | two | | 0 | 5 | -5 - | 3 | 2 | three | | 0 | 5 | -5 - | 4 | 1 | four | | 0 | 5 | -5 - | 5 | 0 | five | | 0 | 5 | -5 - | 6 | 6 | six | | 0 | 5 | -5 - | 7 | 7 | seven | | 0 | 5 | -5 - | 8 | 8 | eight | | 0 | 5 | -5 - | 0 | | zero | | 0 | 5 | -5 - | | | null | | 0 | 5 | -5 - | | 0 | zero | | 0 | 5 | -5 - | 1 | 4 | one | | 0 | 5 | -5 - | 2 | 3 | two | | 0 | 5 | -5 - | 3 | 2 | three | | 0 | 5 | -5 - | 4 | 1 | four | | 0 | 5 | -5 - | 5 | 0 | five | | 0 | 5 | -5 - | 6 | 6 | six | | 0 | 5 | -5 - | 7 | 7 | seven | | 0 | 5 | -5 - | 8 | 8 | eight | | 0 | 5 | -5 - | 0 | | zero | | 0 | 5 | -5 - | | | null | | 0 | 5 | -5 - | | 0 | zero | | 0 | 5 | -5 - | 1 | 4 | one | | 0 | 0 | - | 2 | 3 | two | | 0 | 0 | - | 3 | 2 | three | | 0 | 0 | - | 4 | 1 | four | | 0 | 0 | - | 5 | 0 | five | | 0 | 0 | - | 6 | 6 | six | | 0 | 0 | - | 7 | 7 | seven | | 0 | 0 | - | 8 | 8 | eight | | 0 | 0 | - | 0 | | zero | | 0 | 0 | - | | | null | | 0 | 0 | - | | 0 | zero | | 0 | 0 | - | 1 | 4 | one | | 0 | | - | 2 | 3 | two | | 0 | | - | 3 | 2 | three | | 0 | | - | 4 | 1 | four | | 0 | | - | 5 | 0 | five | | 0 | | - | 6 | 6 | six | | 0 | | - | 7 | 7 | seven | | 0 | | - | 8 | 8 | eight | | 0 | | - | 0 | | zero | | 0 | | - | | | null | | 0 | | - | | 0 | zero | | 0 | | - | 1 | 4 | one | | 0 | | 0 - | 2 | 3 | two | | 0 | | 0 - | 3 | 2 | three | | 0 | | 0 - | 4 | 1 | four | | 0 | | 0 - | 5 | 0 | five | | 0 | | 0 - | 6 | 6 | six | | 0 | | 0 - | 7 | 7 | seven | | 0 | | 0 - | 8 | 8 | eight | | 0 | | 0 - | 0 | | zero | | 0 | | 0 - | | | null | | 0 | | 0 - | | 0 | zero | | 0 | | 0 -(891 rows) - --- --- --- Inner joins (equi-joins) --- --- --- --- Inner joins (equi-joins) with USING clause --- The USING syntax changes the shape of the resulting table --- by including a column in the USING clause only once in the result. --- --- Inner equi-join on specified column -SELECT '' AS "xxx", * - FROM J1_TBL INNER JOIN J2_TBL USING (i); - xxx | i | j | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 4 - | 2 | 3 | two | 2 - | 3 | 2 | three | -3 - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 -(7 rows) - --- Same as above, slightly different syntax -SELECT '' AS "xxx", * - FROM J1_TBL JOIN J2_TBL USING (i); - xxx | i | j | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 4 - | 2 | 3 | two | 2 - | 3 | 2 | three | -3 - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 -(7 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL t1 (a, b, c) JOIN J2_TBL t2 (a, d) USING (a) - ORDER BY a, d; - xxx | a | b | c | d ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 2 - | 2 | 3 | two | 4 - | 3 | 2 | three | -3 - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 -(7 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL t1 (a, b, c) JOIN J2_TBL t2 (a, b) USING (b) - ORDER BY b, t1.a; - xxx | b | a | c | a ------+---+---+-------+--- - | 0 | 5 | five | - | 0 | | zero | - | 2 | 3 | three | 2 - | 4 | 1 | one | 2 -(4 rows) - --- --- NATURAL JOIN --- Inner equi-join on all columns with the same name --- -SELECT '' AS "xxx", * - FROM J1_TBL NATURAL JOIN J2_TBL; - xxx | i | j | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 4 - | 2 | 3 | two | 2 - | 3 | 2 | three | -3 - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 -(7 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL t1 (a, b, c) NATURAL JOIN J2_TBL t2 (a, d); - xxx | a | b | c | d ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 4 - | 2 | 3 | two | 2 - | 3 | 2 | three | -3 - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 -(7 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL t1 (a, b, c) NATURAL JOIN J2_TBL t2 (d, a); - xxx | a | b | c | d ------+---+---+------+--- - | 0 | | zero | - | 2 | 3 | two | 2 - | 4 | 1 | four | 2 -(3 rows) - --- mismatch number of columns --- currently, Postgres will fill in with underlying names -SELECT '' AS "xxx", * - FROM J1_TBL t1 (a, b) NATURAL JOIN J2_TBL t2 (a); - xxx | a | b | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 4 - | 2 | 3 | two | 2 - | 3 | 2 | three | -3 - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 -(7 rows) - --- --- Inner joins (equi-joins) --- -SELECT '' AS "xxx", * - FROM J1_TBL JOIN J2_TBL ON (J1_TBL.i = J2_TBL.i); - xxx | i | j | t | i | k ------+---+---+-------+---+---- - | 0 | | zero | 0 | - | 1 | 4 | one | 1 | -1 - | 2 | 3 | two | 2 | 4 - | 2 | 3 | two | 2 | 2 - | 3 | 2 | three | 3 | -3 - | 5 | 0 | five | 5 | -5 - | 5 | 0 | five | 5 | -5 -(7 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL JOIN J2_TBL ON (J1_TBL.i = J2_TBL.k); - xxx | i | j | t | i | k ------+---+---+------+---+--- - | 0 | | zero | | 0 - | 2 | 3 | two | 2 | 2 - | 4 | 1 | four | 2 | 4 -(3 rows) - --- --- Non-equi-joins --- -SELECT '' AS "xxx", * - FROM J1_TBL JOIN J2_TBL ON (J1_TBL.i <= J2_TBL.k); - xxx | i | j | t | i | k ------+---+---+-------+---+--- - | 1 | 4 | one | 2 | 2 - | 2 | 3 | two | 2 | 2 - | 0 | | zero | 2 | 2 - | 1 | 4 | one | 2 | 4 - | 2 | 3 | two | 2 | 4 - | 3 | 2 | three | 2 | 4 - | 4 | 1 | four | 2 | 4 - | 0 | | zero | 2 | 4 - | 0 | | zero | | 0 -(9 rows) - --- --- Outer joins --- Note that OUTER is a noise word --- -SELECT '' AS "xxx", * - FROM J1_TBL LEFT OUTER JOIN J2_TBL USING (i) - ORDER BY i, k, t; - xxx | i | j | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 2 - | 2 | 3 | two | 4 - | 3 | 2 | three | -3 - | 4 | 1 | four | - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 - | 6 | 6 | six | - | 7 | 7 | seven | - | 8 | 8 | eight | - | | | null | - | | 0 | zero | -(13 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL LEFT JOIN J2_TBL USING (i) - ORDER BY i, k, t; - xxx | i | j | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 2 - | 2 | 3 | two | 4 - | 3 | 2 | three | -3 - | 4 | 1 | four | - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 - | 6 | 6 | six | - | 7 | 7 | seven | - | 8 | 8 | eight | - | | | null | - | | 0 | zero | -(13 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL RIGHT OUTER JOIN J2_TBL USING (i); - xxx | i | j | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 4 - | 2 | 3 | two | 2 - | 3 | 2 | three | -3 - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 - | | | | 0 - | | | | -(9 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL RIGHT JOIN J2_TBL USING (i); - xxx | i | j | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 4 - | 2 | 3 | two | 2 - | 3 | 2 | three | -3 - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 - | | | | 0 - | | | | -(9 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL FULL OUTER JOIN J2_TBL USING (i) - ORDER BY i, k, t; - xxx | i | j | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 2 - | 2 | 3 | two | 4 - | 3 | 2 | three | -3 - | 4 | 1 | four | - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 - | 6 | 6 | six | - | 7 | 7 | seven | - | 8 | 8 | eight | - | | | | 0 - | | | null | - | | 0 | zero | - | | | | -(15 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL FULL JOIN J2_TBL USING (i) - ORDER BY i, k, t; - xxx | i | j | t | k ------+---+---+-------+---- - | 0 | | zero | - | 1 | 4 | one | -1 - | 2 | 3 | two | 2 - | 2 | 3 | two | 4 - | 3 | 2 | three | -3 - | 4 | 1 | four | - | 5 | 0 | five | -5 - | 5 | 0 | five | -5 - | 6 | 6 | six | - | 7 | 7 | seven | - | 8 | 8 | eight | - | | | | 0 - | | | null | - | | 0 | zero | - | | | | -(15 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL LEFT JOIN J2_TBL USING (i) WHERE (k = 1); - xxx | i | j | t | k ------+---+---+---+--- -(0 rows) - -SELECT '' AS "xxx", * - FROM J1_TBL LEFT JOIN J2_TBL USING (i) WHERE (i = 1); - xxx | i | j | t | k ------+---+---+-----+---- - | 1 | 4 | one | -1 -(1 row) - --- --- More complicated constructs --- --- --- Multiway full join --- -CREATE TABLE t1 (name TEXT, n INTEGER); -CREATE TABLE t2 (name TEXT, n INTEGER); -CREATE TABLE t3 (name TEXT, n INTEGER); -INSERT INTO t1 VALUES ( 'aa', 11 ); -INSERT INTO t2 VALUES ( 'aa', 12 ); -INSERT INTO t2 VALUES ( 'bb', 22 ); -INSERT INTO t2 VALUES ( 'dd', 42 ); -INSERT INTO t3 VALUES ( 'aa', 13 ); -INSERT INTO t3 VALUES ( 'bb', 23 ); -INSERT INTO t3 VALUES ( 'cc', 33 ); -SELECT * FROM t1 FULL JOIN t2 USING (name) FULL JOIN t3 USING (name); - name | n | n | n -------+----+----+---- - aa | 11 | 12 | 13 - bb | | 22 | 23 - cc | | | 33 - dd | | 42 | -(4 rows) - --- --- Test interactions of join syntax and subqueries --- --- Basic cases (we expect planner to pull up the subquery here) -SELECT * FROM -(SELECT * FROM t2) as s2 -INNER JOIN -(SELECT * FROM t3) s3 -USING (name); - name | n | n -------+----+---- - aa | 12 | 13 - bb | 22 | 23 -(2 rows) - -SELECT * FROM -(SELECT * FROM t2) as s2 -LEFT JOIN -(SELECT * FROM t3) s3 -USING (name); - name | n | n -------+----+---- - aa | 12 | 13 - bb | 22 | 23 - dd | 42 | -(3 rows) - -SELECT * FROM -(SELECT * FROM t2) as s2 -FULL JOIN -(SELECT * FROM t3) s3 -USING (name); - name | n | n -------+----+---- - aa | 12 | 13 - bb | 22 | 23 - cc | | 33 - dd | 42 | -(4 rows) - --- Cases with non-nullable expressions in subquery results; --- make sure these go to null as expected -SELECT * FROM -(SELECT name, n as s2_n, 2 as s2_2 FROM t2) as s2 -NATURAL INNER JOIN -(SELECT name, n as s3_n, 3 as s3_2 FROM t3) s3; - name | s2_n | s2_2 | s3_n | s3_2 -------+------+------+------+------ - aa | 12 | 2 | 13 | 3 - bb | 22 | 2 | 23 | 3 -(2 rows) - -SELECT * FROM -(SELECT name, n as s2_n, 2 as s2_2 FROM t2) as s2 -NATURAL LEFT JOIN -(SELECT name, n as s3_n, 3 as s3_2 FROM t3) s3; - name | s2_n | s2_2 | s3_n | s3_2 -------+------+------+------+------ - aa | 12 | 2 | 13 | 3 - bb | 22 | 2 | 23 | 3 - dd | 42 | 2 | | -(3 rows) - -SELECT * FROM -(SELECT name, n as s2_n, 2 as s2_2 FROM t2) as s2 -NATURAL FULL JOIN -(SELECT name, n as s3_n, 3 as s3_2 FROM t3) s3; - name | s2_n | s2_2 | s3_n | s3_2 -------+------+------+------+------ - aa | 12 | 2 | 13 | 3 - bb | 22 | 2 | 23 | 3 - cc | | | 33 | 3 - dd | 42 | 2 | | -(4 rows) - -SELECT * FROM -(SELECT name, n as s1_n, 1 as s1_1 FROM t1) as s1 -NATURAL INNER JOIN -(SELECT name, n as s2_n, 2 as s2_2 FROM t2) as s2 -NATURAL INNER JOIN -(SELECT name, n as s3_n, 3 as s3_2 FROM t3) s3; - name | s1_n | s1_1 | s2_n | s2_2 | s3_n | s3_2 -------+------+------+------+------+------+------ - aa | 11 | 1 | 12 | 2 | 13 | 3 -(1 row) - -SELECT * FROM -(SELECT name, n as s1_n, 1 as s1_1 FROM t1) as s1 -NATURAL FULL JOIN -(SELECT name, n as s2_n, 2 as s2_2 FROM t2) as s2 -NATURAL FULL JOIN -(SELECT name, n as s3_n, 3 as s3_2 FROM t3) s3; - name | s1_n | s1_1 | s2_n | s2_2 | s3_n | s3_2 -------+------+------+------+------+------+------ - aa | 11 | 1 | 12 | 2 | 13 | 3 - bb | | | 22 | 2 | 23 | 3 - cc | | | | | 33 | 3 - dd | | | 42 | 2 | | -(4 rows) - -SELECT * FROM -(SELECT name, n as s1_n FROM t1) as s1 -NATURAL FULL JOIN - (SELECT * FROM - (SELECT name, n as s2_n FROM t2) as s2 - NATURAL FULL JOIN - (SELECT name, n as s3_n FROM t3) as s3 - ) ss2; - name | s1_n | s2_n | s3_n -------+------+------+------ - aa | 11 | 12 | 13 - bb | | 22 | 23 - cc | | | 33 - dd | | 42 | -(4 rows) - -SELECT * FROM -(SELECT name, n as s1_n FROM t1) as s1 -NATURAL FULL JOIN - (SELECT * FROM - (SELECT name, n as s2_n, 2 as s2_2 FROM t2) as s2 - NATURAL FULL JOIN - (SELECT name, n as s3_n FROM t3) as s3 - ) ss2; - name | s1_n | s2_n | s2_2 | s3_n -------+------+------+------+------ - aa | 11 | 12 | 2 | 13 - bb | | 22 | 2 | 23 - cc | | | | 33 - dd | | 42 | 2 | -(4 rows) - --- Test for propagation of nullability constraints into sub-joins -create temp table x (x1 int, x2 int); -insert into x values (1,11); -insert into x values (2,22); -insert into x values (3,null); -insert into x values (4,44); -insert into x values (5,null); -create temp table y (y1 int, y2 int); -insert into y values (1,111); -insert into y values (2,222); -insert into y values (3,333); -insert into y values (4,null); -select * from x; - x1 | x2 -----+---- - 1 | 11 - 2 | 22 - 3 | - 4 | 44 - 5 | -(5 rows) - -select * from y; - y1 | y2 -----+----- - 1 | 111 - 2 | 222 - 3 | 333 - 4 | -(4 rows) - -select * from x left join y on (x1 = y1 and x2 is not null); - x1 | x2 | y1 | y2 -----+----+----+----- - 1 | 11 | 1 | 111 - 2 | 22 | 2 | 222 - 3 | | | - 4 | 44 | 4 | - 5 | | | -(5 rows) - -select * from x left join y on (x1 = y1 and y2 is not null); - x1 | x2 | y1 | y2 -----+----+----+----- - 1 | 11 | 1 | 111 - 2 | 22 | 2 | 222 - 3 | | 3 | 333 - 4 | 44 | | - 5 | | | -(5 rows) - -select * from (x left join y on (x1 = y1)) left join x xx(xx1,xx2) -on (x1 = xx1); - x1 | x2 | y1 | y2 | xx1 | xx2 -----+----+----+-----+-----+----- - 1 | 11 | 1 | 111 | 1 | 11 - 2 | 22 | 2 | 222 | 2 | 22 - 3 | | 3 | 333 | 3 | - 4 | 44 | 4 | | 4 | 44 - 5 | | | | 5 | -(5 rows) - -select * from (x left join y on (x1 = y1)) left join x xx(xx1,xx2) -on (x1 = xx1 and x2 is not null); - x1 | x2 | y1 | y2 | xx1 | xx2 -----+----+----+-----+-----+----- - 1 | 11 | 1 | 111 | 1 | 11 - 2 | 22 | 2 | 222 | 2 | 22 - 3 | | 3 | 333 | | - 4 | 44 | 4 | | 4 | 44 - 5 | | | | | -(5 rows) - -select * from (x left join y on (x1 = y1)) left join x xx(xx1,xx2) -on (x1 = xx1 and y2 is not null); - x1 | x2 | y1 | y2 | xx1 | xx2 -----+----+----+-----+-----+----- - 1 | 11 | 1 | 111 | 1 | 11 - 2 | 22 | 2 | 222 | 2 | 22 - 3 | | 3 | 333 | 3 | - 4 | 44 | 4 | | | - 5 | | | | | -(5 rows) - -select * from (x left join y on (x1 = y1)) left join x xx(xx1,xx2) -on (x1 = xx1 and xx2 is not null); - x1 | x2 | y1 | y2 | xx1 | xx2 -----+----+----+-----+-----+----- - 1 | 11 | 1 | 111 | 1 | 11 - 2 | 22 | 2 | 222 | 2 | 22 - 3 | | 3 | 333 | | - 4 | 44 | 4 | | 4 | 44 - 5 | | | | | -(5 rows) - --- these should NOT give the same answers as above -select * from (x left join y on (x1 = y1)) left join x xx(xx1,xx2) -on (x1 = xx1) where (x2 is not null); - x1 | x2 | y1 | y2 | xx1 | xx2 -----+----+----+-----+-----+----- - 1 | 11 | 1 | 111 | 1 | 11 - 2 | 22 | 2 | 222 | 2 | 22 - 4 | 44 | 4 | | 4 | 44 -(3 rows) - -select * from (x left join y on (x1 = y1)) left join x xx(xx1,xx2) -on (x1 = xx1) where (y2 is not null); - x1 | x2 | y1 | y2 | xx1 | xx2 -----+----+----+-----+-----+----- - 1 | 11 | 1 | 111 | 1 | 11 - 2 | 22 | 2 | 222 | 2 | 22 - 3 | | 3 | 333 | 3 | -(3 rows) - -select * from (x left join y on (x1 = y1)) left join x xx(xx1,xx2) -on (x1 = xx1) where (xx2 is not null); - x1 | x2 | y1 | y2 | xx1 | xx2 -----+----+----+-----+-----+----- - 1 | 11 | 1 | 111 | 1 | 11 - 2 | 22 | 2 | 222 | 2 | 22 - 4 | 44 | 4 | | 4 | 44 -(3 rows) - --- --- regression test: check for bug with propagation of implied equality --- to outside an IN --- -select count(*) from tenk1 a where unique1 in - (select unique1 from tenk1 b join tenk1 c using (unique1) - where b.unique2 = 42); - count -------- - 1 -(1 row) - --- --- regression test: check for failure to generate a plan with multiple --- degenerate IN clauses --- -select count(*) from tenk1 x where - x.unique1 in (select a.f1 from int4_tbl a,float8_tbl b where a.f1=b.f1) and - x.unique1 = 0 and - x.unique1 in (select aa.f1 from int4_tbl aa,float8_tbl bb where aa.f1=bb.f1); - count -------- - 1 -(1 row) - --- --- Clean up --- -DROP TABLE t1; -DROP TABLE t2; -DROP TABLE t3; -DROP TABLE J1_TBL; -DROP TABLE J2_TBL; --- Both DELETE and UPDATE allow the specification of additional tables --- to "join" against to determine which rows should be modified. -CREATE TEMP TABLE t1 (a int, b int); -CREATE TEMP TABLE t2 (a int, b int); -CREATE TEMP TABLE t3 (x int, y int); -INSERT INTO t1 VALUES (5, 10); -INSERT INTO t1 VALUES (15, 20); -INSERT INTO t1 VALUES (100, 100); -INSERT INTO t1 VALUES (200, 1000); -INSERT INTO t2 VALUES (200, 2000); -INSERT INTO t3 VALUES (5, 20); -INSERT INTO t3 VALUES (6, 7); -INSERT INTO t3 VALUES (7, 8); -INSERT INTO t3 VALUES (500, 100); -DELETE FROM t3 USING t1 table1 WHERE t3.x = table1.a; -SELECT * FROM t3; - x | y ------+----- - 6 | 7 - 7 | 8 - 500 | 100 -(3 rows) - -DELETE FROM t3 USING t1 JOIN t2 USING (a) WHERE t3.x > t1.a; -SELECT * FROM t3; - x | y ----+--- - 6 | 7 - 7 | 8 -(2 rows) - -DELETE FROM t3 USING t3 t3_other WHERE t3.x = t3_other.x AND t3.y = t3_other.y; -SELECT * FROM t3; - x | y ----+--- -(0 rows) - --- --- regression test for 8.1 merge right join bug --- -CREATE TEMP TABLE tt1 ( tt1_id int4, joincol int4 ); -INSERT INTO tt1 VALUES (1, 11); -INSERT INTO tt1 VALUES (2, NULL); -CREATE TEMP TABLE tt2 ( tt2_id int4, joincol int4 ); -INSERT INTO tt2 VALUES (21, 11); -INSERT INTO tt2 VALUES (22, 11); -set enable_hashjoin to off; -set enable_nestloop to off; --- these should give the same results -select tt1.*, tt2.* from tt1 left join tt2 on tt1.joincol = tt2.joincol; - tt1_id | joincol | tt2_id | joincol ---------+---------+--------+--------- - 1 | 11 | 22 | 11 - 1 | 11 | 21 | 11 - 2 | | | -(3 rows) - -select tt1.*, tt2.* from tt2 right join tt1 on tt1.joincol = tt2.joincol; - tt1_id | joincol | tt2_id | joincol ---------+---------+--------+--------- - 1 | 11 | 22 | 11 - 1 | 11 | 21 | 11 - 2 | | | -(3 rows) - -reset enable_hashjoin; -reset enable_nestloop; --- --- regression test for 8.2 bug with improper re-ordering of left joins --- -create temp table tt3(f1 int, f2 text); -insert into tt3 select x, repeat('xyzzy', 100) from generate_series(1,10000) x; -create index tt3i on tt3(f1); -analyze tt3; -create temp table tt4(f1 int); -insert into tt4 values (0),(1),(9999); -analyze tt4; -SELECT a.f1 -FROM tt4 a -LEFT JOIN ( - SELECT b.f1 - FROM tt3 b LEFT JOIN tt3 c ON (b.f1 = c.f1) - WHERE c.f1 IS NULL -) AS d ON (a.f1 = d.f1) -WHERE d.f1 IS NULL; - f1 ------- - 0 - 1 - 9999 -(3 rows) - --- --- regression test for problems of the sort depicted in bug #3494 --- -create temp table tt5(f1 int, f2 int); -create temp table tt6(f1 int, f2 int); -insert into tt5 values(1, 10); -insert into tt5 values(1, 11); -insert into tt6 values(1, 9); -insert into tt6 values(1, 2); -insert into tt6 values(2, 9); -select * from tt5,tt6 where tt5.f1 = tt6.f1 and tt5.f1 = tt5.f2 - tt6.f2; - f1 | f2 | f1 | f2 -----+----+----+---- - 1 | 10 | 1 | 9 -(1 row) - --- --- regression test for problems of the sort depicted in bug #3588 --- -create temp table xx (pkxx int); -create temp table yy (pkyy int, pkxx int); -insert into xx values (1); -insert into xx values (2); -insert into xx values (3); -insert into yy values (101, 1); -insert into yy values (201, 2); -insert into yy values (301, NULL); -select yy.pkyy as yy_pkyy, yy.pkxx as yy_pkxx, yya.pkyy as yya_pkyy, - xxa.pkxx as xxa_pkxx, xxb.pkxx as xxb_pkxx -from yy - left join (SELECT * FROM yy where pkyy = 101) as yya ON yy.pkyy = yya.pkyy - left join xx xxa on yya.pkxx = xxa.pkxx - left join xx xxb on coalesce (xxa.pkxx, 1) = xxb.pkxx; - yy_pkyy | yy_pkxx | yya_pkyy | xxa_pkxx | xxb_pkxx ----------+---------+----------+----------+---------- - 101 | 1 | 101 | 1 | 1 - 201 | 2 | | | 1 - 301 | | | | 1 -(3 rows) - --- --- regression test for improper pushing of constants across outer-join clauses --- (as seen in early 8.2.x releases) --- -create temp table zt1 (f1 int primary key); -NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "zt1_pkey" for table "zt1" -create temp table zt2 (f2 int primary key); -NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "zt2_pkey" for table "zt2" -create temp table zt3 (f3 int primary key); -NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "zt3_pkey" for table "zt3" -insert into zt1 values(53); -insert into zt2 values(53); -select * from - zt2 left join zt3 on (f2 = f3) - left join zt1 on (f3 = f1) -where f2 = 53; - f2 | f3 | f1 -----+----+---- - 53 | | -(1 row) - -create temp view zv1 as select *,'dummy'::text AS junk from zt1; -select * from - zt2 left join zt3 on (f2 = f3) - left join zv1 on (f3 = f1) -where f2 = 53; - f2 | f3 | f1 | junk -----+----+----+------ - 53 | | | -(1 row) - --- --- regression test for improper extraction of OR indexqual conditions --- (as seen in early 8.3.x releases) --- -select a.unique2, a.ten, b.tenthous, b.unique2, b.hundred -from tenk1 a left join tenk1 b on a.unique2 = b.tenthous -where a.unique1 = 42 and - ((b.unique2 is null and a.ten = 2) or b.hundred = 3); - unique2 | ten | tenthous | unique2 | hundred ----------+-----+----------+---------+--------- -(0 rows) - --- --- test proper positioning of one-time quals in EXISTS (8.4devel bug) --- -prepare foo(bool) as - select count(*) from tenk1 a left join tenk1 b - on (a.unique2 = b.unique1 and exists - (select 1 from tenk1 c where c.thousand = b.unique2 and $1)); -execute foo(true); - count -------- - 10000 -(1 row) - -execute foo(false); - count -------- - 10000 -(1 row) -