Update "join syntax" test for new capabilities.
This commit is contained in:
Thomas G. Lockhart
parent
ebd697a388
commit
92c8437d8d
@ -2,12 +2,12 @@
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-- JOIN
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-- Test join clauses
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--
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CREATE TABLE JOIN1_TBL (
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CREATE TABLE J1_TBL (
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i integer,
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j integer,
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t text
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);
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CREATE TABLE JOIN2_TBL (
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CREATE TABLE J2_TBL (
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i integer,
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k integer
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);
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@ -20,21 +20,99 @@ CREATE TABLE JOIN4_TBL (
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k integer,
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z integer
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);
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INSERT INTO JOIN1_TBL VALUES (1, 3, 'one');
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INSERT INTO JOIN1_TBL VALUES (2, 2, 'two');
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INSERT INTO JOIN1_TBL VALUES (3, 1, 'three');
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INSERT INTO JOIN1_TBL VALUES (4, 0, 'four');
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INSERT INTO JOIN2_TBL VALUES (1, -1);
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INSERT INTO JOIN2_TBL VALUES (2, 2);
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INSERT INTO JOIN2_TBL VALUES (3, -3);
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INSERT INTO JOIN2_TBL VALUES (2, 4);
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INSERT INTO J1_TBL VALUES (1, 3, 'one');
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INSERT INTO J1_TBL VALUES (2, 2, 'two');
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INSERT INTO J1_TBL VALUES (3, 1, 'three');
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INSERT INTO J1_TBL VALUES (4, 0, 'four');
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INSERT INTO J2_TBL VALUES (1, -1);
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INSERT INTO J2_TBL VALUES (2, 2);
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INSERT INTO J2_TBL VALUES (3, -3);
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INSERT INTO J2_TBL VALUES (2, 4);
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--
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-- CORRELATION NAMES
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-- Make sure that table/column aliases are supported
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-- before diving into more complex join syntax.
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--
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SELECT '' AS "xxx", *
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FROM J1_TBL AS tx;
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xxx | i | j | t
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-----+---+---+-------
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| 1 | 3 | one
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| 2 | 2 | two
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| 3 | 1 | three
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| 4 | 0 | four
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(4 rows)
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SELECT '' AS "xxx", *
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FROM J1_TBL tx;
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xxx | i | j | t
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-----+---+---+-------
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| 1 | 3 | one
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| 2 | 2 | two
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| 3 | 1 | three
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| 4 | 0 | four
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(4 rows)
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SELECT '' AS "xxx", *
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FROM J1_TBL AS t1 (a, b, c);
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xxx | a | b | c
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-----+---+---+-------
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| 1 | 3 | one
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| 2 | 2 | two
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| 3 | 1 | three
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| 4 | 0 | four
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(4 rows)
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b, c);
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xxx | a | b | c
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-----+---+---+-------
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| 1 | 3 | one
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| 2 | 2 | two
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| 3 | 1 | three
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| 4 | 0 | four
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(4 rows)
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b, c), J2_TBL t2 (d, e);
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xxx | a | b | c | d | e
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-----+---+---+-------+---+----
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| 1 | 3 | one | 1 | -1
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| 2 | 2 | two | 1 | -1
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| 3 | 1 | three | 1 | -1
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| 4 | 0 | four | 1 | -1
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| 1 | 3 | one | 2 | 2
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| 2 | 2 | two | 2 | 2
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| 3 | 1 | three | 2 | 2
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| 4 | 0 | four | 2 | 2
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| 1 | 3 | one | 3 | -3
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| 2 | 2 | two | 3 | -3
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| 3 | 1 | three | 3 | -3
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| 4 | 0 | four | 3 | -3
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| 1 | 3 | one | 2 | 4
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| 2 | 2 | two | 2 | 4
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| 3 | 1 | three | 2 | 4
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| 4 | 0 | four | 2 | 4
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(16 rows)
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SELECT '' AS "xxx", t1.a, t2.e
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FROM J1_TBL t1 (a, b, c), J2_TBL t2 (d, e)
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WHERE t1.a = t2.d;
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xxx | a | e
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-----+---+----
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| 1 | -1
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| 2 | 2
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| 2 | 4
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| 3 | -3
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(4 rows)
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--
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-- CROSS JOIN
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-- Qualifications are not allowed on cross joins,
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-- which degenerate into a standard unqualified inner join.
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--
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL CROSS JOIN JOIN2_TBL;
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FROM J1_TBL CROSS JOIN J2_TBL;
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xxx | i | j | t | i | k
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-----+---+---+-------+---+----
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| 1 | 3 | one | 1 | -1
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@ -55,15 +133,41 @@ SELECT '' AS "xxx", *
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| 4 | 0 | four | 2 | 4
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(16 rows)
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-- ambiguous column
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SELECT '' AS "xxx", i, k, t
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FROM JOIN1_TBL CROSS JOIN JOIN2_TBL;
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FROM J1_TBL CROSS JOIN J2_TBL;
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ERROR: Column 'i' is ambiguous
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-- resolve previous ambiguity by specifying the table name
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SELECT '' AS "xxx", t1.i, k, t
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FROM J1_TBL t1 CROSS JOIN J2_TBL t2;
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xxx | i | k | t
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-----+---+----+-------
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| 1 | -1 | one
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| 2 | -1 | two
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| 3 | -1 | three
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| 4 | -1 | four
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| 1 | 2 | one
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| 2 | 2 | two
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| 3 | 2 | three
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| 4 | 2 | four
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| 1 | -3 | one
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| 2 | -3 | two
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| 3 | -3 | three
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| 4 | -3 | four
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| 1 | 4 | one
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| 2 | 4 | two
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| 3 | 4 | three
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| 4 | 4 | four
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(16 rows)
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SELECT '' AS "xxx", ii, tt, kk
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FROM JOIN1_TBL CROSS JOIN JOIN2_TBL AS JT (ii, jj, tt, ii2, kk);
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ERROR: parser: parse error at or near "("
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SELECT '' AS "xxx", jt.ii, jt.jj, jt.kk
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FROM JOIN1_TBL CROSS JOIN JOIN2_TBL AS JT (ii, jj, tt, ii2, kk);
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ERROR: parser: parse error at or near "("
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FROM (J1_TBL CROSS JOIN J2_TBL)
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AS tx (ii, jj, tt, ii2, kk);
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ERROR: JOIN table aliases are not supported
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SELECT '' AS "xxx", tx.ii, tx.jj, tx.kk
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FROM (J1_TBL t1 (a, b, c) CROSS JOIN J2_TBL t2 (d, e))
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AS tx (ii, jj, tt, ii2, kk);
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ERROR: JOIN table aliases are not supported
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--
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--
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-- Inner joins (equi-joins)
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@ -74,29 +178,108 @@ ERROR: parser: parse error at or near "("
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-- The USING syntax changes the shape of the resulting table
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-- by including a column in the USING clause only once in the result.
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--
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-- Inner equi-join on all columns with the same name
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL NATURAL JOIN JOIN2_TBL;
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ERROR: JOIN expressions are not yet implemented
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-- Inner equi-join on specified column
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL INNER JOIN JOIN2_TBL USING (i);
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ERROR: JOIN expressions are not yet implemented
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FROM J1_TBL INNER JOIN J2_TBL USING (i);
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xxx | i | j | t | k
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-----+---+---+-------+----
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| 1 | 3 | one | -1
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| 2 | 2 | two | 2
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| 2 | 2 | two | 4
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| 3 | 1 | three | -3
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(4 rows)
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-- Same as above, slightly different syntax
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL JOIN JOIN2_TBL USING (i);
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ERROR: JOIN expressions are not yet implemented
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FROM J1_TBL JOIN J2_TBL USING (i);
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xxx | i | j | t | k
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-----+---+---+-------+----
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| 1 | 3 | one | -1
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| 2 | 2 | two | 2
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| 2 | 2 | two | 4
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| 3 | 1 | three | -3
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(4 rows)
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b, c) JOIN J2_TBL t2 (a, d) USING (a);
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xxx | a | b | c | d
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-----+---+---+-------+----
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| 1 | 3 | one | -1
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| 2 | 2 | two | 2
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| 2 | 2 | two | 4
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| 3 | 1 | three | -3
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(4 rows)
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b, c) JOIN J2_TBL t2 (a, b) USING (b);
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xxx | b | a | c | a
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-----+---+---+-----+---
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| 2 | 2 | two | 2
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(1 row)
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--
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-- NATURAL JOIN
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-- Inner equi-join on all columns with the same name
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--
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SELECT '' AS "xxx", *
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FROM J1_TBL NATURAL JOIN J2_TBL;
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xxx | i | j | t | k
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-----+---+---+-------+----
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| 1 | 3 | one | -1
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| 2 | 2 | two | 2
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| 2 | 2 | two | 4
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| 3 | 1 | three | -3
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(4 rows)
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b, c) NATURAL JOIN J2_TBL t2 (a, d);
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xxx | a | b | c | d
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-----+---+---+-------+----
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| 1 | 3 | one | -1
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| 2 | 2 | two | 2
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| 2 | 2 | two | 4
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| 3 | 1 | three | -3
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(4 rows)
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b, c) NATURAL JOIN J2_TBL t2 (d, a);
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xxx | a | b | c | d
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-----+---+---+------+---
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| 2 | 2 | two | 2
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| 4 | 0 | four | 2
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(2 rows)
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b, c) NATURAL JOIN J2_TBL t2 (d, a);
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xxx | a | b | c | d
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-----+---+---+------+---
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| 2 | 2 | two | 2
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| 4 | 0 | four | 2
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(2 rows)
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-- mismatch number of columns
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-- currently, Postgres will fill in with underlying names
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b) NATURAL JOIN J2_TBL t2 (a);
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xxx | a | b | t | k
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-----+---+---+-------+----
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| 1 | 3 | one | -1
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| 2 | 2 | two | 2
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| 2 | 2 | two | 4
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| 3 | 1 | three | -3
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(4 rows)
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--
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-- Inner joins (equi-joins)
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--
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL JOIN JOIN2_TBL ON (JOIN1_TBL.i = JOIN2_TBL.i);
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ERROR: JOIN expressions are not yet implemented
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FROM J1_TBL JOIN J2_TBL ON (J1_TBL.i = J2_TBL.i);
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ERROR: transformExpr: does not know how to transform node 501 (internal error)
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL JOIN JOIN2_TBL ON (JOIN1_TBL.i = JOIN2_TBL.k);
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ERROR: JOIN expressions are not yet implemented
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FROM J1_TBL JOIN J2_TBL ON (J1_TBL.i = J2_TBL.k);
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ERROR: transformExpr: does not know how to transform node 501 (internal error)
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL CROSS JOIN JOIN2_TBL;
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FROM J1_TBL CROSS JOIN J2_TBL;
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xxx | i | j | t | i | k
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-----+---+---+-------+---+----
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| 1 | 3 | one | 1 | -1
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@ -121,32 +304,28 @@ SELECT '' AS "xxx", *
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-- Non-equi-joins
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--
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL JOIN JOIN2_TBL ON (JOIN1_TBL.i <= JOIN2_TBL.k);
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ERROR: JOIN expressions are not yet implemented
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FROM J1_TBL JOIN J2_TBL ON (J1_TBL.i <= J2_TBL.k);
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ERROR: transformExpr: does not know how to transform node 501 (internal error)
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--
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-- Outer joins
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--
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL OUTER JOIN JOIN2_TBL USING (i);
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NOTICE: OUTER JOIN not yet implemented
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ERROR: JOIN expressions are not yet implemented
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FROM J1_TBL OUTER JOIN J2_TBL USING (i);
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ERROR: OUTER JOIN is not yet supported
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL LEFT OUTER JOIN JOIN2_TBL USING (i);
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NOTICE: LEFT OUTER JOIN not yet implemented
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ERROR: JOIN expressions are not yet implemented
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FROM J1_TBL LEFT OUTER JOIN J2_TBL USING (i);
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ERROR: OUTER JOIN is not yet supported
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL RIGHT OUTER JOIN JOIN2_TBL USING (i);
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NOTICE: RIGHT OUTER JOIN not yet implemented
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ERROR: JOIN expressions are not yet implemented
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FROM J1_TBL RIGHT OUTER JOIN J2_TBL USING (i);
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ERROR: OUTER JOIN is not yet supported
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL FULL OUTER JOIN JOIN2_TBL USING (i);
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NOTICE: FULL OUTER JOIN not yet implemented
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ERROR: JOIN expressions are not yet implemented
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FROM J1_TBL FULL OUTER JOIN J2_TBL USING (i);
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ERROR: OUTER JOIN is not yet supported
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--
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-- More complicated constructs
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--
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--
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-- Clean up
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--
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DROP TABLE JOIN1_TBL;
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DROP TABLE JOIN2_TBL;
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DROP TABLE J1_TBL;
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DROP TABLE J2_TBL;
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@ -3,13 +3,13 @@
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-- Test join clauses
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--
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CREATE TABLE JOIN1_TBL (
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CREATE TABLE J1_TBL (
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i integer,
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j integer,
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t text
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);
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CREATE TABLE JOIN2_TBL (
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CREATE TABLE J2_TBL (
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i integer,
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k integer
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);
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@ -25,15 +25,40 @@ CREATE TABLE JOIN4_TBL (
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z integer
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);
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INSERT INTO JOIN1_TBL VALUES (1, 3, 'one');
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INSERT INTO JOIN1_TBL VALUES (2, 2, 'two');
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INSERT INTO JOIN1_TBL VALUES (3, 1, 'three');
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INSERT INTO JOIN1_TBL VALUES (4, 0, 'four');
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INSERT INTO J1_TBL VALUES (1, 3, 'one');
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INSERT INTO J1_TBL VALUES (2, 2, 'two');
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INSERT INTO J1_TBL VALUES (3, 1, 'three');
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INSERT INTO J1_TBL VALUES (4, 0, 'four');
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INSERT INTO JOIN2_TBL VALUES (1, -1);
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INSERT INTO JOIN2_TBL VALUES (2, 2);
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INSERT INTO JOIN2_TBL VALUES (3, -3);
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INSERT INTO JOIN2_TBL VALUES (2, 4);
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INSERT INTO J2_TBL VALUES (1, -1);
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INSERT INTO J2_TBL VALUES (2, 2);
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INSERT INTO J2_TBL VALUES (3, -3);
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INSERT INTO J2_TBL VALUES (2, 4);
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--
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-- CORRELATION NAMES
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-- Make sure that table/column aliases are supported
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-- before diving into more complex join syntax.
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--
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SELECT '' AS "xxx", *
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FROM J1_TBL AS tx;
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SELECT '' AS "xxx", *
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FROM J1_TBL tx;
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SELECT '' AS "xxx", *
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FROM J1_TBL AS t1 (a, b, c);
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b, c);
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SELECT '' AS "xxx", *
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FROM J1_TBL t1 (a, b, c), J2_TBL t2 (d, e);
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SELECT '' AS "xxx", t1.a, t2.e
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FROM J1_TBL t1 (a, b, c), J2_TBL t2 (d, e)
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WHERE t1.a = t2.d;
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--
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@ -43,16 +68,23 @@ INSERT INTO JOIN2_TBL VALUES (2, 4);
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--
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL CROSS JOIN JOIN2_TBL;
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FROM J1_TBL CROSS JOIN J2_TBL;
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-- ambiguous column
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SELECT '' AS "xxx", i, k, t
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FROM JOIN1_TBL CROSS JOIN JOIN2_TBL;
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FROM J1_TBL CROSS JOIN J2_TBL;
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-- resolve previous ambiguity by specifying the table name
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SELECT '' AS "xxx", t1.i, k, t
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FROM J1_TBL t1 CROSS JOIN J2_TBL t2;
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SELECT '' AS "xxx", ii, tt, kk
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FROM JOIN1_TBL CROSS JOIN JOIN2_TBL AS JT (ii, jj, tt, ii2, kk);
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FROM (J1_TBL CROSS JOIN J2_TBL)
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AS tx (ii, jj, tt, ii2, kk);
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SELECT '' AS "xxx", jt.ii, jt.jj, jt.kk
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FROM JOIN1_TBL CROSS JOIN JOIN2_TBL AS JT (ii, jj, tt, ii2, kk);
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SELECT '' AS "xxx", tx.ii, tx.jj, tx.kk
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FROM (J1_TBL t1 (a, b, c) CROSS JOIN J2_TBL t2 (d, e))
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AS tx (ii, jj, tt, ii2, kk);
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--
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@ -67,17 +99,42 @@ SELECT '' AS "xxx", jt.ii, jt.jj, jt.kk
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-- by including a column in the USING clause only once in the result.
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--
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-- Inner equi-join on all columns with the same name
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL NATURAL JOIN JOIN2_TBL;
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-- Inner equi-join on specified column
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SELECT '' AS "xxx", *
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FROM JOIN1_TBL INNER JOIN JOIN2_TBL USING (i);
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FROM J1_TBL INNER JOIN J2_TBL USING (i);
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-- Same as above, slightly different syntax
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SELECT '' AS "xxx", *
|
||||
FROM JOIN1_TBL JOIN JOIN2_TBL USING (i);
|
||||
FROM J1_TBL JOIN J2_TBL USING (i);
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM J1_TBL t1 (a, b, c) JOIN J2_TBL t2 (a, d) USING (a);
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM J1_TBL t1 (a, b, c) JOIN J2_TBL t2 (a, b) USING (b);
|
||||
|
||||
|
||||
--
|
||||
-- NATURAL JOIN
|
||||
-- Inner equi-join on all columns with the same name
|
||||
--
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM J1_TBL NATURAL JOIN J2_TBL;
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM J1_TBL t1 (a, b, c) NATURAL JOIN J2_TBL t2 (a, d);
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM J1_TBL t1 (a, b, c) NATURAL JOIN J2_TBL t2 (d, a);
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM J1_TBL t1 (a, b, c) NATURAL JOIN J2_TBL t2 (d, a);
|
||||
|
||||
-- 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);
|
||||
|
||||
|
||||
--
|
||||
@ -85,13 +142,13 @@ SELECT '' AS "xxx", *
|
||||
--
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM JOIN1_TBL JOIN JOIN2_TBL ON (JOIN1_TBL.i = JOIN2_TBL.i);
|
||||
FROM J1_TBL JOIN J2_TBL ON (J1_TBL.i = J2_TBL.i);
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM JOIN1_TBL JOIN JOIN2_TBL ON (JOIN1_TBL.i = JOIN2_TBL.k);
|
||||
FROM J1_TBL JOIN J2_TBL ON (J1_TBL.i = J2_TBL.k);
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM JOIN1_TBL CROSS JOIN JOIN2_TBL;
|
||||
FROM J1_TBL CROSS JOIN J2_TBL;
|
||||
|
||||
|
||||
--
|
||||
@ -99,7 +156,7 @@ SELECT '' AS "xxx", *
|
||||
--
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM JOIN1_TBL JOIN JOIN2_TBL ON (JOIN1_TBL.i <= JOIN2_TBL.k);
|
||||
FROM J1_TBL JOIN J2_TBL ON (J1_TBL.i <= J2_TBL.k);
|
||||
|
||||
|
||||
--
|
||||
@ -107,16 +164,16 @@ SELECT '' AS "xxx", *
|
||||
--
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM JOIN1_TBL OUTER JOIN JOIN2_TBL USING (i);
|
||||
FROM J1_TBL OUTER JOIN J2_TBL USING (i);
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM JOIN1_TBL LEFT OUTER JOIN JOIN2_TBL USING (i);
|
||||
FROM J1_TBL LEFT OUTER JOIN J2_TBL USING (i);
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM JOIN1_TBL RIGHT OUTER JOIN JOIN2_TBL USING (i);
|
||||
FROM J1_TBL RIGHT OUTER JOIN J2_TBL USING (i);
|
||||
|
||||
SELECT '' AS "xxx", *
|
||||
FROM JOIN1_TBL FULL OUTER JOIN JOIN2_TBL USING (i);
|
||||
FROM J1_TBL FULL OUTER JOIN J2_TBL USING (i);
|
||||
|
||||
|
||||
--
|
||||
@ -127,6 +184,6 @@ SELECT '' AS "xxx", *
|
||||
-- Clean up
|
||||
--
|
||||
|
||||
DROP TABLE JOIN1_TBL;
|
||||
DROP TABLE JOIN2_TBL;
|
||||
DROP TABLE J1_TBL;
|
||||
DROP TABLE J2_TBL;
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user