2641 lines
105 KiB
Plaintext
2641 lines
105 KiB
Plaintext
--
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-- Test inheritance features
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--
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CREATE TABLE a (aa TEXT);
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CREATE TABLE b (bb TEXT) INHERITS (a);
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CREATE TABLE c (cc TEXT) INHERITS (a);
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CREATE TABLE d (dd TEXT) INHERITS (b,c,a);
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NOTICE: merging multiple inherited definitions of column "aa"
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NOTICE: merging multiple inherited definitions of column "aa"
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INSERT INTO a(aa) VALUES('aaa');
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INSERT INTO a(aa) VALUES('aaaa');
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INSERT INTO a(aa) VALUES('aaaaa');
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INSERT INTO a(aa) VALUES('aaaaaa');
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INSERT INTO a(aa) VALUES('aaaaaaa');
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INSERT INTO a(aa) VALUES('aaaaaaaa');
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INSERT INTO b(aa) VALUES('bbb');
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INSERT INTO b(aa) VALUES('bbbb');
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INSERT INTO b(aa) VALUES('bbbbb');
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INSERT INTO b(aa) VALUES('bbbbbb');
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INSERT INTO b(aa) VALUES('bbbbbbb');
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INSERT INTO b(aa) VALUES('bbbbbbbb');
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INSERT INTO c(aa) VALUES('ccc');
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INSERT INTO c(aa) VALUES('cccc');
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INSERT INTO c(aa) VALUES('ccccc');
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INSERT INTO c(aa) VALUES('cccccc');
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INSERT INTO c(aa) VALUES('ccccccc');
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INSERT INTO c(aa) VALUES('cccccccc');
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INSERT INTO d(aa) VALUES('ddd');
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INSERT INTO d(aa) VALUES('dddd');
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INSERT INTO d(aa) VALUES('ddddd');
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INSERT INTO d(aa) VALUES('dddddd');
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INSERT INTO d(aa) VALUES('ddddddd');
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INSERT INTO d(aa) VALUES('dddddddd');
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SELECT relname, a.* FROM a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+----------
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a | aaa
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a | aaaa
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a | aaaaa
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a | aaaaaa
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a | aaaaaaa
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a | aaaaaaaa
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b | bbb
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b | bbbb
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b | bbbbb
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b | bbbbbb
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b | bbbbbbb
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b | bbbbbbbb
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c | ccc
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c | cccc
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c | ccccc
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c | cccccc
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c | ccccccc
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c | cccccccc
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d | ddd
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d | dddd
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d | ddddd
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d | dddddd
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d | ddddddd
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d | dddddddd
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(24 rows)
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SELECT relname, b.* FROM b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+----------+----
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b | bbb |
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b | bbbb |
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b | bbbbb |
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b | bbbbbb |
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b | bbbbbbb |
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b | bbbbbbbb |
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d | ddd |
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d | dddd |
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d | ddddd |
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d | dddddd |
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d | ddddddd |
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d | dddddddd |
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(12 rows)
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SELECT relname, c.* FROM c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+----------+----
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c | ccc |
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c | cccc |
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c | ccccc |
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c | cccccc |
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c | ccccccc |
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c | cccccccc |
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d | ddd |
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d | dddd |
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d | ddddd |
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d | dddddd |
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d | ddddddd |
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d | dddddddd |
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(12 rows)
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SELECT relname, d.* FROM d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+----------+----+----+----
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d | ddd | | |
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d | dddd | | |
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d | ddddd | | |
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d | dddddd | | |
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d | ddddddd | | |
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d | dddddddd | | |
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(6 rows)
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SELECT relname, a.* FROM ONLY a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+----------
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a | aaa
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a | aaaa
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a | aaaaa
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a | aaaaaa
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a | aaaaaaa
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a | aaaaaaaa
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(6 rows)
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SELECT relname, b.* FROM ONLY b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+----------+----
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b | bbb |
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b | bbbb |
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b | bbbbb |
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b | bbbbbb |
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b | bbbbbbb |
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b | bbbbbbbb |
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(6 rows)
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SELECT relname, c.* FROM ONLY c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+----------+----
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c | ccc |
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c | cccc |
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c | ccccc |
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c | cccccc |
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c | ccccccc |
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c | cccccccc |
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(6 rows)
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SELECT relname, d.* FROM ONLY d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+----------+----+----+----
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d | ddd | | |
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d | dddd | | |
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d | ddddd | | |
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d | dddddd | | |
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d | ddddddd | | |
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d | dddddddd | | |
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(6 rows)
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UPDATE a SET aa='zzzz' WHERE aa='aaaa';
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UPDATE ONLY a SET aa='zzzzz' WHERE aa='aaaaa';
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UPDATE b SET aa='zzz' WHERE aa='aaa';
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UPDATE ONLY b SET aa='zzz' WHERE aa='aaa';
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UPDATE a SET aa='zzzzzz' WHERE aa LIKE 'aaa%';
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SELECT relname, a.* FROM a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+----------
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a | zzzz
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a | zzzzz
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a | zzzzzz
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a | zzzzzz
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a | zzzzzz
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a | zzzzzz
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b | bbb
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b | bbbb
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b | bbbbb
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b | bbbbbb
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b | bbbbbbb
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b | bbbbbbbb
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c | ccc
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c | cccc
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c | ccccc
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c | cccccc
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c | ccccccc
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c | cccccccc
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d | ddd
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d | dddd
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d | ddddd
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d | dddddd
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d | ddddddd
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d | dddddddd
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(24 rows)
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SELECT relname, b.* FROM b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+----------+----
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b | bbb |
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b | bbbb |
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b | bbbbb |
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b | bbbbbb |
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b | bbbbbbb |
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b | bbbbbbbb |
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d | ddd |
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d | dddd |
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d | ddddd |
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d | dddddd |
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d | ddddddd |
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d | dddddddd |
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(12 rows)
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SELECT relname, c.* FROM c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+----------+----
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c | ccc |
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c | cccc |
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c | ccccc |
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c | cccccc |
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c | ccccccc |
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c | cccccccc |
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d | ddd |
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d | dddd |
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d | ddddd |
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d | dddddd |
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d | ddddddd |
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d | dddddddd |
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(12 rows)
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SELECT relname, d.* FROM d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+----------+----+----+----
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d | ddd | | |
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d | dddd | | |
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d | ddddd | | |
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d | dddddd | | |
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d | ddddddd | | |
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d | dddddddd | | |
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(6 rows)
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SELECT relname, a.* FROM ONLY a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+--------
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a | zzzz
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a | zzzzz
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a | zzzzzz
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a | zzzzzz
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a | zzzzzz
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a | zzzzzz
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(6 rows)
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SELECT relname, b.* FROM ONLY b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+----------+----
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b | bbb |
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b | bbbb |
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b | bbbbb |
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b | bbbbbb |
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b | bbbbbbb |
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b | bbbbbbbb |
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(6 rows)
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SELECT relname, c.* FROM ONLY c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+----------+----
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c | ccc |
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c | cccc |
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c | ccccc |
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c | cccccc |
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c | ccccccc |
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c | cccccccc |
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(6 rows)
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SELECT relname, d.* FROM ONLY d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+----------+----+----+----
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d | ddd | | |
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d | dddd | | |
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d | ddddd | | |
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d | dddddd | | |
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d | ddddddd | | |
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d | dddddddd | | |
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(6 rows)
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UPDATE b SET aa='new';
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SELECT relname, a.* FROM a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+----------
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a | zzzz
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a | zzzzz
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a | zzzzzz
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a | zzzzzz
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a | zzzzzz
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a | zzzzzz
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b | new
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b | new
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b | new
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b | new
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b | new
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b | new
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c | ccc
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c | cccc
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c | ccccc
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c | cccccc
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c | ccccccc
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c | cccccccc
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d | new
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d | new
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d | new
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d | new
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d | new
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d | new
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(24 rows)
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SELECT relname, b.* FROM b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+-----+----
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b | new |
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b | new |
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b | new |
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b | new |
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b | new |
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b | new |
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d | new |
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d | new |
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d | new |
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d | new |
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d | new |
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d | new |
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(12 rows)
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SELECT relname, c.* FROM c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+----------+----
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c | ccc |
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c | cccc |
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c | ccccc |
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c | cccccc |
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c | ccccccc |
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c | cccccccc |
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d | new |
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d | new |
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d | new |
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d | new |
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d | new |
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d | new |
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(12 rows)
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SELECT relname, d.* FROM d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+-----+----+----+----
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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(6 rows)
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SELECT relname, a.* FROM ONLY a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+--------
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a | zzzz
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a | zzzzz
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a | zzzzzz
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a | zzzzzz
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a | zzzzzz
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a | zzzzzz
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(6 rows)
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SELECT relname, b.* FROM ONLY b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+-----+----
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b | new |
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b | new |
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b | new |
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b | new |
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b | new |
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b | new |
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(6 rows)
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SELECT relname, c.* FROM ONLY c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+----------+----
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c | ccc |
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c | cccc |
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c | ccccc |
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c | cccccc |
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c | ccccccc |
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c | cccccccc |
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(6 rows)
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SELECT relname, d.* FROM ONLY d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+-----+----+----+----
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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(6 rows)
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UPDATE a SET aa='new';
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DELETE FROM ONLY c WHERE aa='new';
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SELECT relname, a.* FROM a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+-----
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a | new
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a | new
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a | new
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a | new
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a | new
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a | new
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b | new
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b | new
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b | new
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b | new
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b | new
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b | new
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d | new
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d | new
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d | new
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d | new
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d | new
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d | new
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(18 rows)
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SELECT relname, b.* FROM b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+-----+----
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b | new |
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b | new |
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b | new |
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b | new |
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b | new |
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b | new |
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d | new |
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d | new |
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d | new |
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d | new |
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d | new |
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d | new |
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(12 rows)
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SELECT relname, c.* FROM c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+-----+----
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d | new |
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d | new |
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d | new |
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d | new |
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d | new |
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d | new |
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(6 rows)
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SELECT relname, d.* FROM d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+-----+----+----+----
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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(6 rows)
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SELECT relname, a.* FROM ONLY a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+-----
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a | new
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a | new
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a | new
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a | new
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a | new
|
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a | new
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(6 rows)
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SELECT relname, b.* FROM ONLY b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+-----+----
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b | new |
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b | new |
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b | new |
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b | new |
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b | new |
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b | new |
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(6 rows)
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SELECT relname, c.* FROM ONLY c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+----+----
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(0 rows)
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SELECT relname, d.* FROM ONLY d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+-----+----+----+----
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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d | new | | |
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(6 rows)
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DELETE FROM a;
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SELECT relname, a.* FROM a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+----
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(0 rows)
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SELECT relname, b.* FROM b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+----+----
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(0 rows)
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|
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SELECT relname, c.* FROM c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+----+----
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(0 rows)
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|
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SELECT relname, d.* FROM d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+----+----+----+----
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(0 rows)
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|
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SELECT relname, a.* FROM ONLY a, pg_class where a.tableoid = pg_class.oid;
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relname | aa
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---------+----
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(0 rows)
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SELECT relname, b.* FROM ONLY b, pg_class where b.tableoid = pg_class.oid;
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relname | aa | bb
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---------+----+----
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(0 rows)
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SELECT relname, c.* FROM ONLY c, pg_class where c.tableoid = pg_class.oid;
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relname | aa | cc
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---------+----+----
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(0 rows)
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|
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SELECT relname, d.* FROM ONLY d, pg_class where d.tableoid = pg_class.oid;
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relname | aa | bb | cc | dd
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---------+----+----+----+----
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(0 rows)
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|
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-- Confirm PRIMARY KEY adds NOT NULL constraint to child table
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CREATE TEMP TABLE z (b TEXT, PRIMARY KEY(aa, b)) inherits (a);
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INSERT INTO z VALUES (NULL, 'text'); -- should fail
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ERROR: null value in column "aa" of relation "z" violates not-null constraint
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DETAIL: Failing row contains (null, text).
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-- Check inherited UPDATE with all children excluded
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create table some_tab (a int, b int);
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create table some_tab_child () inherits (some_tab);
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insert into some_tab_child values(1,2);
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explain (verbose, costs off)
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update some_tab set a = a + 1 where false;
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QUERY PLAN
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--------------------------------------------------------
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Update on public.some_tab
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-> Result
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Output: (some_tab.a + 1), NULL::oid, NULL::tid
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One-Time Filter: false
|
|
(4 rows)
|
|
|
|
update some_tab set a = a + 1 where false;
|
|
explain (verbose, costs off)
|
|
update some_tab set a = a + 1 where false returning b, a;
|
|
QUERY PLAN
|
|
--------------------------------------------------------
|
|
Update on public.some_tab
|
|
Output: some_tab.b, some_tab.a
|
|
-> Result
|
|
Output: (some_tab.a + 1), NULL::oid, NULL::tid
|
|
One-Time Filter: false
|
|
(5 rows)
|
|
|
|
update some_tab set a = a + 1 where false returning b, a;
|
|
b | a
|
|
---+---
|
|
(0 rows)
|
|
|
|
table some_tab;
|
|
a | b
|
|
---+---
|
|
1 | 2
|
|
(1 row)
|
|
|
|
drop table some_tab cascade;
|
|
NOTICE: drop cascades to table some_tab_child
|
|
-- Check UPDATE with inherited target and an inherited source table
|
|
create temp table foo(f1 int, f2 int);
|
|
create temp table foo2(f3 int) inherits (foo);
|
|
create temp table bar(f1 int, f2 int);
|
|
create temp table bar2(f3 int) inherits (bar);
|
|
insert into foo values(1,1);
|
|
insert into foo values(3,3);
|
|
insert into foo2 values(2,2,2);
|
|
insert into foo2 values(3,3,3);
|
|
insert into bar values(1,1);
|
|
insert into bar values(2,2);
|
|
insert into bar values(3,3);
|
|
insert into bar values(4,4);
|
|
insert into bar2 values(1,1,1);
|
|
insert into bar2 values(2,2,2);
|
|
insert into bar2 values(3,3,3);
|
|
insert into bar2 values(4,4,4);
|
|
update bar set f2 = f2 + 100 where f1 in (select f1 from foo);
|
|
select tableoid::regclass::text as relname, bar.* from bar order by 1,2;
|
|
relname | f1 | f2
|
|
---------+----+-----
|
|
bar | 1 | 101
|
|
bar | 2 | 102
|
|
bar | 3 | 103
|
|
bar | 4 | 4
|
|
bar2 | 1 | 101
|
|
bar2 | 2 | 102
|
|
bar2 | 3 | 103
|
|
bar2 | 4 | 4
|
|
(8 rows)
|
|
|
|
-- Check UPDATE with inherited target and an appendrel subquery
|
|
update bar set f2 = f2 + 100
|
|
from
|
|
( select f1 from foo union all select f1+3 from foo ) ss
|
|
where bar.f1 = ss.f1;
|
|
select tableoid::regclass::text as relname, bar.* from bar order by 1,2;
|
|
relname | f1 | f2
|
|
---------+----+-----
|
|
bar | 1 | 201
|
|
bar | 2 | 202
|
|
bar | 3 | 203
|
|
bar | 4 | 104
|
|
bar2 | 1 | 201
|
|
bar2 | 2 | 202
|
|
bar2 | 3 | 203
|
|
bar2 | 4 | 104
|
|
(8 rows)
|
|
|
|
-- Check UPDATE with *partitioned* inherited target and an appendrel subquery
|
|
create table some_tab (a int);
|
|
insert into some_tab values (0);
|
|
create table some_tab_child () inherits (some_tab);
|
|
insert into some_tab_child values (1);
|
|
create table parted_tab (a int, b char) partition by list (a);
|
|
create table parted_tab_part1 partition of parted_tab for values in (1);
|
|
create table parted_tab_part2 partition of parted_tab for values in (2);
|
|
create table parted_tab_part3 partition of parted_tab for values in (3);
|
|
insert into parted_tab values (1, 'a'), (2, 'a'), (3, 'a');
|
|
update parted_tab set b = 'b'
|
|
from
|
|
(select a from some_tab union all select a+1 from some_tab) ss (a)
|
|
where parted_tab.a = ss.a;
|
|
select tableoid::regclass::text as relname, parted_tab.* from parted_tab order by 1,2;
|
|
relname | a | b
|
|
------------------+---+---
|
|
parted_tab_part1 | 1 | b
|
|
parted_tab_part2 | 2 | b
|
|
parted_tab_part3 | 3 | a
|
|
(3 rows)
|
|
|
|
truncate parted_tab;
|
|
insert into parted_tab values (1, 'a'), (2, 'a'), (3, 'a');
|
|
update parted_tab set b = 'b'
|
|
from
|
|
(select 0 from parted_tab union all select 1 from parted_tab) ss (a)
|
|
where parted_tab.a = ss.a;
|
|
select tableoid::regclass::text as relname, parted_tab.* from parted_tab order by 1,2;
|
|
relname | a | b
|
|
------------------+---+---
|
|
parted_tab_part1 | 1 | b
|
|
parted_tab_part2 | 2 | a
|
|
parted_tab_part3 | 3 | a
|
|
(3 rows)
|
|
|
|
-- modifies partition key, but no rows will actually be updated
|
|
explain update parted_tab set a = 2 where false;
|
|
QUERY PLAN
|
|
--------------------------------------------------------
|
|
Update on parted_tab (cost=0.00..0.00 rows=0 width=0)
|
|
-> Result (cost=0.00..0.00 rows=0 width=10)
|
|
One-Time Filter: false
|
|
(3 rows)
|
|
|
|
drop table parted_tab;
|
|
-- Check UPDATE with multi-level partitioned inherited target
|
|
create table mlparted_tab (a int, b char, c text) partition by list (a);
|
|
create table mlparted_tab_part1 partition of mlparted_tab for values in (1);
|
|
create table mlparted_tab_part2 partition of mlparted_tab for values in (2) partition by list (b);
|
|
create table mlparted_tab_part3 partition of mlparted_tab for values in (3);
|
|
create table mlparted_tab_part2a partition of mlparted_tab_part2 for values in ('a');
|
|
create table mlparted_tab_part2b partition of mlparted_tab_part2 for values in ('b');
|
|
insert into mlparted_tab values (1, 'a'), (2, 'a'), (2, 'b'), (3, 'a');
|
|
update mlparted_tab mlp set c = 'xxx'
|
|
from
|
|
(select a from some_tab union all select a+1 from some_tab) ss (a)
|
|
where (mlp.a = ss.a and mlp.b = 'b') or mlp.a = 3;
|
|
select tableoid::regclass::text as relname, mlparted_tab.* from mlparted_tab order by 1,2;
|
|
relname | a | b | c
|
|
---------------------+---+---+-----
|
|
mlparted_tab_part1 | 1 | a |
|
|
mlparted_tab_part2a | 2 | a |
|
|
mlparted_tab_part2b | 2 | b | xxx
|
|
mlparted_tab_part3 | 3 | a | xxx
|
|
(4 rows)
|
|
|
|
drop table mlparted_tab;
|
|
drop table some_tab cascade;
|
|
NOTICE: drop cascades to table some_tab_child
|
|
/* Test multiple inheritance of column defaults */
|
|
CREATE TABLE firstparent (tomorrow date default now()::date + 1);
|
|
CREATE TABLE secondparent (tomorrow date default now() :: date + 1);
|
|
CREATE TABLE jointchild () INHERITS (firstparent, secondparent); -- ok
|
|
NOTICE: merging multiple inherited definitions of column "tomorrow"
|
|
CREATE TABLE thirdparent (tomorrow date default now()::date - 1);
|
|
CREATE TABLE otherchild () INHERITS (firstparent, thirdparent); -- not ok
|
|
NOTICE: merging multiple inherited definitions of column "tomorrow"
|
|
ERROR: column "tomorrow" inherits conflicting default values
|
|
HINT: To resolve the conflict, specify a default explicitly.
|
|
CREATE TABLE otherchild (tomorrow date default now())
|
|
INHERITS (firstparent, thirdparent); -- ok, child resolves ambiguous default
|
|
NOTICE: merging multiple inherited definitions of column "tomorrow"
|
|
NOTICE: merging column "tomorrow" with inherited definition
|
|
DROP TABLE firstparent, secondparent, jointchild, thirdparent, otherchild;
|
|
-- Test changing the type of inherited columns
|
|
insert into d values('test','one','two','three');
|
|
alter table a alter column aa type integer using bit_length(aa);
|
|
select * from d;
|
|
aa | bb | cc | dd
|
|
----+-----+-----+-------
|
|
32 | one | two | three
|
|
(1 row)
|
|
|
|
-- The above verified that we can change the type of a multiply-inherited
|
|
-- column; but we should reject that if any definition was inherited from
|
|
-- an unrelated parent.
|
|
create temp table parent1(f1 int, f2 int);
|
|
create temp table parent2(f1 int, f3 bigint);
|
|
create temp table childtab(f4 int) inherits(parent1, parent2);
|
|
NOTICE: merging multiple inherited definitions of column "f1"
|
|
alter table parent1 alter column f1 type bigint; -- fail, conflict w/parent2
|
|
ERROR: cannot alter inherited column "f1" of relation "childtab"
|
|
alter table parent1 alter column f2 type bigint; -- ok
|
|
-- Test non-inheritable parent constraints
|
|
create table p1(ff1 int);
|
|
alter table p1 add constraint p1chk check (ff1 > 0) no inherit;
|
|
alter table p1 add constraint p2chk check (ff1 > 10);
|
|
-- connoinherit should be true for NO INHERIT constraint
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pgc.connoinherit from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname = 'p1' order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | connoinherit
|
|
---------+---------+---------+------------+-------------+--------------
|
|
p1 | p1chk | c | t | 0 | t
|
|
p1 | p2chk | c | t | 0 | f
|
|
(2 rows)
|
|
|
|
-- Test that child does not inherit NO INHERIT constraints
|
|
create table c1 () inherits (p1);
|
|
\d p1
|
|
Table "public.p1"
|
|
Column | Type | Collation | Nullable | Default
|
|
--------+---------+-----------+----------+---------
|
|
ff1 | integer | | |
|
|
Check constraints:
|
|
"p1chk" CHECK (ff1 > 0) NO INHERIT
|
|
"p2chk" CHECK (ff1 > 10)
|
|
Number of child tables: 1 (Use \d+ to list them.)
|
|
|
|
\d c1
|
|
Table "public.c1"
|
|
Column | Type | Collation | Nullable | Default
|
|
--------+---------+-----------+----------+---------
|
|
ff1 | integer | | |
|
|
Check constraints:
|
|
"p2chk" CHECK (ff1 > 10)
|
|
Inherits: p1
|
|
|
|
-- Test that child does not override inheritable constraints of the parent
|
|
create table c2 (constraint p2chk check (ff1 > 10) no inherit) inherits (p1); --fails
|
|
ERROR: constraint "p2chk" conflicts with inherited constraint on relation "c2"
|
|
drop table p1 cascade;
|
|
NOTICE: drop cascades to table c1
|
|
-- Tests for casting between the rowtypes of parent and child
|
|
-- tables. See the pgsql-hackers thread beginning Dec. 4/04
|
|
create table base (i integer);
|
|
create table derived () inherits (base);
|
|
create table more_derived (like derived, b int) inherits (derived);
|
|
NOTICE: merging column "i" with inherited definition
|
|
insert into derived (i) values (0);
|
|
select derived::base from derived;
|
|
derived
|
|
---------
|
|
(0)
|
|
(1 row)
|
|
|
|
select NULL::derived::base;
|
|
base
|
|
------
|
|
|
|
(1 row)
|
|
|
|
-- remove redundant conversions.
|
|
explain (verbose on, costs off) select row(i, b)::more_derived::derived::base from more_derived;
|
|
QUERY PLAN
|
|
-------------------------------------------
|
|
Seq Scan on public.more_derived
|
|
Output: (ROW(i, b)::more_derived)::base
|
|
(2 rows)
|
|
|
|
explain (verbose on, costs off) select (1, 2)::more_derived::derived::base;
|
|
QUERY PLAN
|
|
-----------------------
|
|
Result
|
|
Output: '(1)'::base
|
|
(2 rows)
|
|
|
|
drop table more_derived;
|
|
drop table derived;
|
|
drop table base;
|
|
create table p1(ff1 int);
|
|
create table p2(f1 text);
|
|
create function p2text(p2) returns text as 'select $1.f1' language sql;
|
|
create table c1(f3 int) inherits(p1,p2);
|
|
insert into c1 values(123456789, 'hi', 42);
|
|
select p2text(c1.*) from c1;
|
|
p2text
|
|
--------
|
|
hi
|
|
(1 row)
|
|
|
|
drop function p2text(p2);
|
|
drop table c1;
|
|
drop table p2;
|
|
drop table p1;
|
|
CREATE TABLE ac (aa TEXT);
|
|
alter table ac add constraint ac_check check (aa is not null);
|
|
CREATE TABLE bc (bb TEXT) INHERITS (ac);
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+----------+---------+------------+-------------+------------------
|
|
ac | ac_check | c | t | 0 | (aa IS NOT NULL)
|
|
bc | ac_check | c | f | 1 | (aa IS NOT NULL)
|
|
(2 rows)
|
|
|
|
insert into ac (aa) values (NULL);
|
|
ERROR: new row for relation "ac" violates check constraint "ac_check"
|
|
DETAIL: Failing row contains (null).
|
|
insert into bc (aa) values (NULL);
|
|
ERROR: new row for relation "bc" violates check constraint "ac_check"
|
|
DETAIL: Failing row contains (null, null).
|
|
alter table bc drop constraint ac_check; -- fail, disallowed
|
|
ERROR: cannot drop inherited constraint "ac_check" of relation "bc"
|
|
alter table ac drop constraint ac_check;
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+---------+---------+------------+-------------+--------
|
|
(0 rows)
|
|
|
|
-- try the unnamed-constraint case
|
|
alter table ac add check (aa is not null);
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+-------------+---------+------------+-------------+------------------
|
|
ac | ac_aa_check | c | t | 0 | (aa IS NOT NULL)
|
|
bc | ac_aa_check | c | f | 1 | (aa IS NOT NULL)
|
|
(2 rows)
|
|
|
|
insert into ac (aa) values (NULL);
|
|
ERROR: new row for relation "ac" violates check constraint "ac_aa_check"
|
|
DETAIL: Failing row contains (null).
|
|
insert into bc (aa) values (NULL);
|
|
ERROR: new row for relation "bc" violates check constraint "ac_aa_check"
|
|
DETAIL: Failing row contains (null, null).
|
|
alter table bc drop constraint ac_aa_check; -- fail, disallowed
|
|
ERROR: cannot drop inherited constraint "ac_aa_check" of relation "bc"
|
|
alter table ac drop constraint ac_aa_check;
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+---------+---------+------------+-------------+--------
|
|
(0 rows)
|
|
|
|
alter table ac add constraint ac_check check (aa is not null);
|
|
alter table bc no inherit ac;
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+----------+---------+------------+-------------+------------------
|
|
ac | ac_check | c | t | 0 | (aa IS NOT NULL)
|
|
bc | ac_check | c | t | 0 | (aa IS NOT NULL)
|
|
(2 rows)
|
|
|
|
alter table bc drop constraint ac_check;
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+----------+---------+------------+-------------+------------------
|
|
ac | ac_check | c | t | 0 | (aa IS NOT NULL)
|
|
(1 row)
|
|
|
|
alter table ac drop constraint ac_check;
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+---------+---------+------------+-------------+--------
|
|
(0 rows)
|
|
|
|
drop table bc;
|
|
drop table ac;
|
|
create table ac (a int constraint check_a check (a <> 0));
|
|
create table bc (a int constraint check_a check (a <> 0), b int constraint check_b check (b <> 0)) inherits (ac);
|
|
NOTICE: merging column "a" with inherited definition
|
|
NOTICE: merging constraint "check_a" with inherited definition
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+---------+---------+------------+-------------+----------
|
|
ac | check_a | c | t | 0 | (a <> 0)
|
|
bc | check_a | c | t | 1 | (a <> 0)
|
|
bc | check_b | c | t | 0 | (b <> 0)
|
|
(3 rows)
|
|
|
|
drop table bc;
|
|
drop table ac;
|
|
create table ac (a int constraint check_a check (a <> 0));
|
|
create table bc (b int constraint check_b check (b <> 0));
|
|
create table cc (c int constraint check_c check (c <> 0)) inherits (ac, bc);
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc', 'cc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+---------+---------+------------+-------------+----------
|
|
ac | check_a | c | t | 0 | (a <> 0)
|
|
bc | check_b | c | t | 0 | (b <> 0)
|
|
cc | check_a | c | f | 1 | (a <> 0)
|
|
cc | check_b | c | f | 1 | (b <> 0)
|
|
cc | check_c | c | t | 0 | (c <> 0)
|
|
(5 rows)
|
|
|
|
alter table cc no inherit bc;
|
|
select pc.relname, pgc.conname, pgc.contype, pgc.conislocal, pgc.coninhcount, pg_get_expr(pgc.conbin, pc.oid) as consrc from pg_class as pc inner join pg_constraint as pgc on (pgc.conrelid = pc.oid) where pc.relname in ('ac', 'bc', 'cc') order by 1,2;
|
|
relname | conname | contype | conislocal | coninhcount | consrc
|
|
---------+---------+---------+------------+-------------+----------
|
|
ac | check_a | c | t | 0 | (a <> 0)
|
|
bc | check_b | c | t | 0 | (b <> 0)
|
|
cc | check_a | c | f | 1 | (a <> 0)
|
|
cc | check_b | c | t | 0 | (b <> 0)
|
|
cc | check_c | c | t | 0 | (c <> 0)
|
|
(5 rows)
|
|
|
|
drop table cc;
|
|
drop table bc;
|
|
drop table ac;
|
|
create table p1(f1 int);
|
|
create table p2(f2 int);
|
|
create table c1(f3 int) inherits(p1,p2);
|
|
insert into c1 values(1,-1,2);
|
|
alter table p2 add constraint cc check (f2>0); -- fail
|
|
ERROR: check constraint "cc" of relation "c1" is violated by some row
|
|
alter table p2 add check (f2>0); -- check it without a name, too
|
|
ERROR: check constraint "p2_f2_check" of relation "c1" is violated by some row
|
|
delete from c1;
|
|
insert into c1 values(1,1,2);
|
|
alter table p2 add check (f2>0);
|
|
insert into c1 values(1,-1,2); -- fail
|
|
ERROR: new row for relation "c1" violates check constraint "p2_f2_check"
|
|
DETAIL: Failing row contains (1, -1, 2).
|
|
create table c2(f3 int) inherits(p1,p2);
|
|
\d c2
|
|
Table "public.c2"
|
|
Column | Type | Collation | Nullable | Default
|
|
--------+---------+-----------+----------+---------
|
|
f1 | integer | | |
|
|
f2 | integer | | |
|
|
f3 | integer | | |
|
|
Check constraints:
|
|
"p2_f2_check" CHECK (f2 > 0)
|
|
Inherits: p1,
|
|
p2
|
|
|
|
create table c3 (f4 int) inherits(c1,c2);
|
|
NOTICE: merging multiple inherited definitions of column "f1"
|
|
NOTICE: merging multiple inherited definitions of column "f2"
|
|
NOTICE: merging multiple inherited definitions of column "f3"
|
|
\d c3
|
|
Table "public.c3"
|
|
Column | Type | Collation | Nullable | Default
|
|
--------+---------+-----------+----------+---------
|
|
f1 | integer | | |
|
|
f2 | integer | | |
|
|
f3 | integer | | |
|
|
f4 | integer | | |
|
|
Check constraints:
|
|
"p2_f2_check" CHECK (f2 > 0)
|
|
Inherits: c1,
|
|
c2
|
|
|
|
drop table p1 cascade;
|
|
NOTICE: drop cascades to 3 other objects
|
|
DETAIL: drop cascades to table c1
|
|
drop cascades to table c2
|
|
drop cascades to table c3
|
|
drop table p2 cascade;
|
|
create table pp1 (f1 int);
|
|
create table cc1 (f2 text, f3 int) inherits (pp1);
|
|
alter table pp1 add column a1 int check (a1 > 0);
|
|
\d cc1
|
|
Table "public.cc1"
|
|
Column | Type | Collation | Nullable | Default
|
|
--------+---------+-----------+----------+---------
|
|
f1 | integer | | |
|
|
f2 | text | | |
|
|
f3 | integer | | |
|
|
a1 | integer | | |
|
|
Check constraints:
|
|
"pp1_a1_check" CHECK (a1 > 0)
|
|
Inherits: pp1
|
|
|
|
create table cc2(f4 float) inherits(pp1,cc1);
|
|
NOTICE: merging multiple inherited definitions of column "f1"
|
|
NOTICE: merging multiple inherited definitions of column "a1"
|
|
\d cc2
|
|
Table "public.cc2"
|
|
Column | Type | Collation | Nullable | Default
|
|
--------+------------------+-----------+----------+---------
|
|
f1 | integer | | |
|
|
a1 | integer | | |
|
|
f2 | text | | |
|
|
f3 | integer | | |
|
|
f4 | double precision | | |
|
|
Check constraints:
|
|
"pp1_a1_check" CHECK (a1 > 0)
|
|
Inherits: pp1,
|
|
cc1
|
|
|
|
alter table pp1 add column a2 int check (a2 > 0);
|
|
NOTICE: merging definition of column "a2" for child "cc2"
|
|
NOTICE: merging constraint "pp1_a2_check" with inherited definition
|
|
\d cc2
|
|
Table "public.cc2"
|
|
Column | Type | Collation | Nullable | Default
|
|
--------+------------------+-----------+----------+---------
|
|
f1 | integer | | |
|
|
a1 | integer | | |
|
|
f2 | text | | |
|
|
f3 | integer | | |
|
|
f4 | double precision | | |
|
|
a2 | integer | | |
|
|
Check constraints:
|
|
"pp1_a1_check" CHECK (a1 > 0)
|
|
"pp1_a2_check" CHECK (a2 > 0)
|
|
Inherits: pp1,
|
|
cc1
|
|
|
|
drop table pp1 cascade;
|
|
NOTICE: drop cascades to 2 other objects
|
|
DETAIL: drop cascades to table cc1
|
|
drop cascades to table cc2
|
|
-- Test for renaming in simple multiple inheritance
|
|
CREATE TABLE inht1 (a int, b int);
|
|
CREATE TABLE inhs1 (b int, c int);
|
|
CREATE TABLE inhts (d int) INHERITS (inht1, inhs1);
|
|
NOTICE: merging multiple inherited definitions of column "b"
|
|
ALTER TABLE inht1 RENAME a TO aa;
|
|
ALTER TABLE inht1 RENAME b TO bb; -- to be failed
|
|
ERROR: cannot rename inherited column "b"
|
|
ALTER TABLE inhts RENAME aa TO aaa; -- to be failed
|
|
ERROR: cannot rename inherited column "aa"
|
|
ALTER TABLE inhts RENAME d TO dd;
|
|
\d+ inhts
|
|
Table "public.inhts"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+---------+-----------+----------+---------+---------+--------------+-------------
|
|
aa | integer | | | | plain | |
|
|
b | integer | | | | plain | |
|
|
c | integer | | | | plain | |
|
|
dd | integer | | | | plain | |
|
|
Inherits: inht1,
|
|
inhs1
|
|
|
|
DROP TABLE inhts;
|
|
-- Test for renaming in diamond inheritance
|
|
CREATE TABLE inht2 (x int) INHERITS (inht1);
|
|
CREATE TABLE inht3 (y int) INHERITS (inht1);
|
|
CREATE TABLE inht4 (z int) INHERITS (inht2, inht3);
|
|
NOTICE: merging multiple inherited definitions of column "aa"
|
|
NOTICE: merging multiple inherited definitions of column "b"
|
|
ALTER TABLE inht1 RENAME aa TO aaa;
|
|
\d+ inht4
|
|
Table "public.inht4"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+---------+-----------+----------+---------+---------+--------------+-------------
|
|
aaa | integer | | | | plain | |
|
|
b | integer | | | | plain | |
|
|
x | integer | | | | plain | |
|
|
y | integer | | | | plain | |
|
|
z | integer | | | | plain | |
|
|
Inherits: inht2,
|
|
inht3
|
|
|
|
CREATE TABLE inhts (d int) INHERITS (inht2, inhs1);
|
|
NOTICE: merging multiple inherited definitions of column "b"
|
|
ALTER TABLE inht1 RENAME aaa TO aaaa;
|
|
ALTER TABLE inht1 RENAME b TO bb; -- to be failed
|
|
ERROR: cannot rename inherited column "b"
|
|
\d+ inhts
|
|
Table "public.inhts"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+---------+-----------+----------+---------+---------+--------------+-------------
|
|
aaaa | integer | | | | plain | |
|
|
b | integer | | | | plain | |
|
|
x | integer | | | | plain | |
|
|
c | integer | | | | plain | |
|
|
d | integer | | | | plain | |
|
|
Inherits: inht2,
|
|
inhs1
|
|
|
|
WITH RECURSIVE r AS (
|
|
SELECT 'inht1'::regclass AS inhrelid
|
|
UNION ALL
|
|
SELECT c.inhrelid FROM pg_inherits c, r WHERE r.inhrelid = c.inhparent
|
|
)
|
|
SELECT a.attrelid::regclass, a.attname, a.attinhcount, e.expected
|
|
FROM (SELECT inhrelid, count(*) AS expected FROM pg_inherits
|
|
WHERE inhparent IN (SELECT inhrelid FROM r) GROUP BY inhrelid) e
|
|
JOIN pg_attribute a ON e.inhrelid = a.attrelid WHERE NOT attislocal
|
|
ORDER BY a.attrelid::regclass::name, a.attnum;
|
|
attrelid | attname | attinhcount | expected
|
|
----------+---------+-------------+----------
|
|
inht2 | aaaa | 1 | 1
|
|
inht2 | b | 1 | 1
|
|
inht3 | aaaa | 1 | 1
|
|
inht3 | b | 1 | 1
|
|
inht4 | aaaa | 2 | 2
|
|
inht4 | b | 2 | 2
|
|
inht4 | x | 1 | 2
|
|
inht4 | y | 1 | 2
|
|
inhts | aaaa | 1 | 1
|
|
inhts | b | 2 | 1
|
|
inhts | x | 1 | 1
|
|
inhts | c | 1 | 1
|
|
(12 rows)
|
|
|
|
DROP TABLE inht1, inhs1 CASCADE;
|
|
NOTICE: drop cascades to 4 other objects
|
|
DETAIL: drop cascades to table inht2
|
|
drop cascades to table inhts
|
|
drop cascades to table inht3
|
|
drop cascades to table inht4
|
|
-- Test non-inheritable indices [UNIQUE, EXCLUDE] constraints
|
|
CREATE TABLE test_constraints (id int, val1 varchar, val2 int, UNIQUE(val1, val2));
|
|
CREATE TABLE test_constraints_inh () INHERITS (test_constraints);
|
|
\d+ test_constraints
|
|
Table "public.test_constraints"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+-------------------+-----------+----------+---------+----------+--------------+-------------
|
|
id | integer | | | | plain | |
|
|
val1 | character varying | | | | extended | |
|
|
val2 | integer | | | | plain | |
|
|
Indexes:
|
|
"test_constraints_val1_val2_key" UNIQUE CONSTRAINT, btree (val1, val2)
|
|
Child tables: test_constraints_inh
|
|
|
|
ALTER TABLE ONLY test_constraints DROP CONSTRAINT test_constraints_val1_val2_key;
|
|
\d+ test_constraints
|
|
Table "public.test_constraints"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+-------------------+-----------+----------+---------+----------+--------------+-------------
|
|
id | integer | | | | plain | |
|
|
val1 | character varying | | | | extended | |
|
|
val2 | integer | | | | plain | |
|
|
Child tables: test_constraints_inh
|
|
|
|
\d+ test_constraints_inh
|
|
Table "public.test_constraints_inh"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+-------------------+-----------+----------+---------+----------+--------------+-------------
|
|
id | integer | | | | plain | |
|
|
val1 | character varying | | | | extended | |
|
|
val2 | integer | | | | plain | |
|
|
Inherits: test_constraints
|
|
|
|
DROP TABLE test_constraints_inh;
|
|
DROP TABLE test_constraints;
|
|
CREATE TABLE test_ex_constraints (
|
|
c circle,
|
|
EXCLUDE USING gist (c WITH &&)
|
|
);
|
|
CREATE TABLE test_ex_constraints_inh () INHERITS (test_ex_constraints);
|
|
\d+ test_ex_constraints
|
|
Table "public.test_ex_constraints"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+--------+-----------+----------+---------+---------+--------------+-------------
|
|
c | circle | | | | plain | |
|
|
Indexes:
|
|
"test_ex_constraints_c_excl" EXCLUDE USING gist (c WITH &&)
|
|
Child tables: test_ex_constraints_inh
|
|
|
|
ALTER TABLE test_ex_constraints DROP CONSTRAINT test_ex_constraints_c_excl;
|
|
\d+ test_ex_constraints
|
|
Table "public.test_ex_constraints"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+--------+-----------+----------+---------+---------+--------------+-------------
|
|
c | circle | | | | plain | |
|
|
Child tables: test_ex_constraints_inh
|
|
|
|
\d+ test_ex_constraints_inh
|
|
Table "public.test_ex_constraints_inh"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+--------+-----------+----------+---------+---------+--------------+-------------
|
|
c | circle | | | | plain | |
|
|
Inherits: test_ex_constraints
|
|
|
|
DROP TABLE test_ex_constraints_inh;
|
|
DROP TABLE test_ex_constraints;
|
|
-- Test non-inheritable foreign key constraints
|
|
CREATE TABLE test_primary_constraints(id int PRIMARY KEY);
|
|
CREATE TABLE test_foreign_constraints(id1 int REFERENCES test_primary_constraints(id));
|
|
CREATE TABLE test_foreign_constraints_inh () INHERITS (test_foreign_constraints);
|
|
\d+ test_primary_constraints
|
|
Table "public.test_primary_constraints"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+---------+-----------+----------+---------+---------+--------------+-------------
|
|
id | integer | | not null | | plain | |
|
|
Indexes:
|
|
"test_primary_constraints_pkey" PRIMARY KEY, btree (id)
|
|
Referenced by:
|
|
TABLE "test_foreign_constraints" CONSTRAINT "test_foreign_constraints_id1_fkey" FOREIGN KEY (id1) REFERENCES test_primary_constraints(id)
|
|
|
|
\d+ test_foreign_constraints
|
|
Table "public.test_foreign_constraints"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+---------+-----------+----------+---------+---------+--------------+-------------
|
|
id1 | integer | | | | plain | |
|
|
Foreign-key constraints:
|
|
"test_foreign_constraints_id1_fkey" FOREIGN KEY (id1) REFERENCES test_primary_constraints(id)
|
|
Child tables: test_foreign_constraints_inh
|
|
|
|
ALTER TABLE test_foreign_constraints DROP CONSTRAINT test_foreign_constraints_id1_fkey;
|
|
\d+ test_foreign_constraints
|
|
Table "public.test_foreign_constraints"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+---------+-----------+----------+---------+---------+--------------+-------------
|
|
id1 | integer | | | | plain | |
|
|
Child tables: test_foreign_constraints_inh
|
|
|
|
\d+ test_foreign_constraints_inh
|
|
Table "public.test_foreign_constraints_inh"
|
|
Column | Type | Collation | Nullable | Default | Storage | Stats target | Description
|
|
--------+---------+-----------+----------+---------+---------+--------------+-------------
|
|
id1 | integer | | | | plain | |
|
|
Inherits: test_foreign_constraints
|
|
|
|
DROP TABLE test_foreign_constraints_inh;
|
|
DROP TABLE test_foreign_constraints;
|
|
DROP TABLE test_primary_constraints;
|
|
-- Test foreign key behavior
|
|
create table inh_fk_1 (a int primary key);
|
|
insert into inh_fk_1 values (1), (2), (3);
|
|
create table inh_fk_2 (x int primary key, y int references inh_fk_1 on delete cascade);
|
|
insert into inh_fk_2 values (11, 1), (22, 2), (33, 3);
|
|
create table inh_fk_2_child () inherits (inh_fk_2);
|
|
insert into inh_fk_2_child values (111, 1), (222, 2);
|
|
delete from inh_fk_1 where a = 1;
|
|
select * from inh_fk_1 order by 1;
|
|
a
|
|
---
|
|
2
|
|
3
|
|
(2 rows)
|
|
|
|
select * from inh_fk_2 order by 1, 2;
|
|
x | y
|
|
-----+---
|
|
22 | 2
|
|
33 | 3
|
|
111 | 1
|
|
222 | 2
|
|
(4 rows)
|
|
|
|
drop table inh_fk_1, inh_fk_2, inh_fk_2_child;
|
|
-- Test that parent and child CHECK constraints can be created in either order
|
|
create table p1(f1 int);
|
|
create table p1_c1() inherits(p1);
|
|
alter table p1 add constraint inh_check_constraint1 check (f1 > 0);
|
|
alter table p1_c1 add constraint inh_check_constraint1 check (f1 > 0);
|
|
NOTICE: merging constraint "inh_check_constraint1" with inherited definition
|
|
alter table p1_c1 add constraint inh_check_constraint2 check (f1 < 10);
|
|
alter table p1 add constraint inh_check_constraint2 check (f1 < 10);
|
|
NOTICE: merging constraint "inh_check_constraint2" with inherited definition
|
|
select conrelid::regclass::text as relname, conname, conislocal, coninhcount
|
|
from pg_constraint where conname like 'inh\_check\_constraint%'
|
|
order by 1, 2;
|
|
relname | conname | conislocal | coninhcount
|
|
---------+-----------------------+------------+-------------
|
|
p1 | inh_check_constraint1 | t | 0
|
|
p1 | inh_check_constraint2 | t | 0
|
|
p1_c1 | inh_check_constraint1 | t | 1
|
|
p1_c1 | inh_check_constraint2 | t | 1
|
|
(4 rows)
|
|
|
|
drop table p1 cascade;
|
|
NOTICE: drop cascades to table p1_c1
|
|
-- Test that a valid child can have not-valid parent, but not vice versa
|
|
create table invalid_check_con(f1 int);
|
|
create table invalid_check_con_child() inherits(invalid_check_con);
|
|
alter table invalid_check_con_child add constraint inh_check_constraint check(f1 > 0) not valid;
|
|
alter table invalid_check_con add constraint inh_check_constraint check(f1 > 0); -- fail
|
|
ERROR: constraint "inh_check_constraint" conflicts with NOT VALID constraint on relation "invalid_check_con_child"
|
|
alter table invalid_check_con_child drop constraint inh_check_constraint;
|
|
insert into invalid_check_con values(0);
|
|
alter table invalid_check_con_child add constraint inh_check_constraint check(f1 > 0);
|
|
alter table invalid_check_con add constraint inh_check_constraint check(f1 > 0) not valid;
|
|
NOTICE: merging constraint "inh_check_constraint" with inherited definition
|
|
insert into invalid_check_con values(0); -- fail
|
|
ERROR: new row for relation "invalid_check_con" violates check constraint "inh_check_constraint"
|
|
DETAIL: Failing row contains (0).
|
|
insert into invalid_check_con_child values(0); -- fail
|
|
ERROR: new row for relation "invalid_check_con_child" violates check constraint "inh_check_constraint"
|
|
DETAIL: Failing row contains (0).
|
|
select conrelid::regclass::text as relname, conname,
|
|
convalidated, conislocal, coninhcount, connoinherit
|
|
from pg_constraint where conname like 'inh\_check\_constraint%'
|
|
order by 1, 2;
|
|
relname | conname | convalidated | conislocal | coninhcount | connoinherit
|
|
-------------------------+----------------------+--------------+------------+-------------+--------------
|
|
invalid_check_con | inh_check_constraint | f | t | 0 | f
|
|
invalid_check_con_child | inh_check_constraint | t | t | 1 | f
|
|
(2 rows)
|
|
|
|
-- We don't drop the invalid_check_con* tables, to test dump/reload with
|
|
--
|
|
-- Test parameterized append plans for inheritance trees
|
|
--
|
|
create temp table patest0 (id, x) as
|
|
select x, x from generate_series(0,1000) x;
|
|
create temp table patest1() inherits (patest0);
|
|
insert into patest1
|
|
select x, x from generate_series(0,1000) x;
|
|
create temp table patest2() inherits (patest0);
|
|
insert into patest2
|
|
select x, x from generate_series(0,1000) x;
|
|
create index patest0i on patest0(id);
|
|
create index patest1i on patest1(id);
|
|
create index patest2i on patest2(id);
|
|
analyze patest0;
|
|
analyze patest1;
|
|
analyze patest2;
|
|
explain (costs off)
|
|
select * from patest0 join (select f1 from int4_tbl limit 1) ss on id = f1;
|
|
QUERY PLAN
|
|
------------------------------------------------------------
|
|
Nested Loop
|
|
-> Limit
|
|
-> Seq Scan on int4_tbl
|
|
-> Append
|
|
-> Index Scan using patest0i on patest0 patest0_1
|
|
Index Cond: (id = int4_tbl.f1)
|
|
-> Index Scan using patest1i on patest1 patest0_2
|
|
Index Cond: (id = int4_tbl.f1)
|
|
-> Index Scan using patest2i on patest2 patest0_3
|
|
Index Cond: (id = int4_tbl.f1)
|
|
(10 rows)
|
|
|
|
select * from patest0 join (select f1 from int4_tbl limit 1) ss on id = f1;
|
|
id | x | f1
|
|
----+---+----
|
|
0 | 0 | 0
|
|
0 | 0 | 0
|
|
0 | 0 | 0
|
|
(3 rows)
|
|
|
|
drop index patest2i;
|
|
explain (costs off)
|
|
select * from patest0 join (select f1 from int4_tbl limit 1) ss on id = f1;
|
|
QUERY PLAN
|
|
------------------------------------------------------------
|
|
Nested Loop
|
|
-> Limit
|
|
-> Seq Scan on int4_tbl
|
|
-> Append
|
|
-> Index Scan using patest0i on patest0 patest0_1
|
|
Index Cond: (id = int4_tbl.f1)
|
|
-> Index Scan using patest1i on patest1 patest0_2
|
|
Index Cond: (id = int4_tbl.f1)
|
|
-> Seq Scan on patest2 patest0_3
|
|
Filter: (int4_tbl.f1 = id)
|
|
(10 rows)
|
|
|
|
select * from patest0 join (select f1 from int4_tbl limit 1) ss on id = f1;
|
|
id | x | f1
|
|
----+---+----
|
|
0 | 0 | 0
|
|
0 | 0 | 0
|
|
0 | 0 | 0
|
|
(3 rows)
|
|
|
|
drop table patest0 cascade;
|
|
NOTICE: drop cascades to 2 other objects
|
|
DETAIL: drop cascades to table patest1
|
|
drop cascades to table patest2
|
|
--
|
|
-- Test merge-append plans for inheritance trees
|
|
--
|
|
create table matest0 (id serial primary key, name text);
|
|
create table matest1 (id integer primary key) inherits (matest0);
|
|
NOTICE: merging column "id" with inherited definition
|
|
create table matest2 (id integer primary key) inherits (matest0);
|
|
NOTICE: merging column "id" with inherited definition
|
|
create table matest3 (id integer primary key) inherits (matest0);
|
|
NOTICE: merging column "id" with inherited definition
|
|
create index matest0i on matest0 ((1-id));
|
|
create index matest1i on matest1 ((1-id));
|
|
-- create index matest2i on matest2 ((1-id)); -- intentionally missing
|
|
create index matest3i on matest3 ((1-id));
|
|
insert into matest1 (name) values ('Test 1');
|
|
insert into matest1 (name) values ('Test 2');
|
|
insert into matest2 (name) values ('Test 3');
|
|
insert into matest2 (name) values ('Test 4');
|
|
insert into matest3 (name) values ('Test 5');
|
|
insert into matest3 (name) values ('Test 6');
|
|
set enable_indexscan = off; -- force use of seqscan/sort, so no merge
|
|
explain (verbose, costs off) select * from matest0 order by 1-id;
|
|
QUERY PLAN
|
|
------------------------------------------------------------
|
|
Sort
|
|
Output: matest0.id, matest0.name, ((1 - matest0.id))
|
|
Sort Key: ((1 - matest0.id))
|
|
-> Result
|
|
Output: matest0.id, matest0.name, (1 - matest0.id)
|
|
-> Append
|
|
-> Seq Scan on public.matest0 matest0_1
|
|
Output: matest0_1.id, matest0_1.name
|
|
-> Seq Scan on public.matest1 matest0_2
|
|
Output: matest0_2.id, matest0_2.name
|
|
-> Seq Scan on public.matest2 matest0_3
|
|
Output: matest0_3.id, matest0_3.name
|
|
-> Seq Scan on public.matest3 matest0_4
|
|
Output: matest0_4.id, matest0_4.name
|
|
(14 rows)
|
|
|
|
select * from matest0 order by 1-id;
|
|
id | name
|
|
----+--------
|
|
6 | Test 6
|
|
5 | Test 5
|
|
4 | Test 4
|
|
3 | Test 3
|
|
2 | Test 2
|
|
1 | Test 1
|
|
(6 rows)
|
|
|
|
explain (verbose, costs off) select min(1-id) from matest0;
|
|
QUERY PLAN
|
|
--------------------------------------------------
|
|
Aggregate
|
|
Output: min((1 - matest0.id))
|
|
-> Append
|
|
-> Seq Scan on public.matest0 matest0_1
|
|
Output: matest0_1.id
|
|
-> Seq Scan on public.matest1 matest0_2
|
|
Output: matest0_2.id
|
|
-> Seq Scan on public.matest2 matest0_3
|
|
Output: matest0_3.id
|
|
-> Seq Scan on public.matest3 matest0_4
|
|
Output: matest0_4.id
|
|
(11 rows)
|
|
|
|
select min(1-id) from matest0;
|
|
min
|
|
-----
|
|
-5
|
|
(1 row)
|
|
|
|
reset enable_indexscan;
|
|
set enable_seqscan = off; -- plan with fewest seqscans should be merge
|
|
set enable_parallel_append = off; -- Don't let parallel-append interfere
|
|
explain (verbose, costs off) select * from matest0 order by 1-id;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: ((1 - matest0.id))
|
|
-> Index Scan using matest0i on public.matest0 matest0_1
|
|
Output: matest0_1.id, matest0_1.name, (1 - matest0_1.id)
|
|
-> Index Scan using matest1i on public.matest1 matest0_2
|
|
Output: matest0_2.id, matest0_2.name, (1 - matest0_2.id)
|
|
-> Sort
|
|
Output: matest0_3.id, matest0_3.name, ((1 - matest0_3.id))
|
|
Sort Key: ((1 - matest0_3.id))
|
|
-> Seq Scan on public.matest2 matest0_3
|
|
Output: matest0_3.id, matest0_3.name, (1 - matest0_3.id)
|
|
-> Index Scan using matest3i on public.matest3 matest0_4
|
|
Output: matest0_4.id, matest0_4.name, (1 - matest0_4.id)
|
|
(13 rows)
|
|
|
|
select * from matest0 order by 1-id;
|
|
id | name
|
|
----+--------
|
|
6 | Test 6
|
|
5 | Test 5
|
|
4 | Test 4
|
|
3 | Test 3
|
|
2 | Test 2
|
|
1 | Test 1
|
|
(6 rows)
|
|
|
|
explain (verbose, costs off) select min(1-id) from matest0;
|
|
QUERY PLAN
|
|
---------------------------------------------------------------------------------
|
|
Result
|
|
Output: $0
|
|
InitPlan 1 (returns $0)
|
|
-> Limit
|
|
Output: ((1 - matest0.id))
|
|
-> Result
|
|
Output: ((1 - matest0.id))
|
|
-> Merge Append
|
|
Sort Key: ((1 - matest0.id))
|
|
-> Index Scan using matest0i on public.matest0 matest0_1
|
|
Output: matest0_1.id, (1 - matest0_1.id)
|
|
Index Cond: ((1 - matest0_1.id) IS NOT NULL)
|
|
-> Index Scan using matest1i on public.matest1 matest0_2
|
|
Output: matest0_2.id, (1 - matest0_2.id)
|
|
Index Cond: ((1 - matest0_2.id) IS NOT NULL)
|
|
-> Sort
|
|
Output: matest0_3.id, ((1 - matest0_3.id))
|
|
Sort Key: ((1 - matest0_3.id))
|
|
-> Bitmap Heap Scan on public.matest2 matest0_3
|
|
Output: matest0_3.id, (1 - matest0_3.id)
|
|
Filter: ((1 - matest0_3.id) IS NOT NULL)
|
|
-> Bitmap Index Scan on matest2_pkey
|
|
-> Index Scan using matest3i on public.matest3 matest0_4
|
|
Output: matest0_4.id, (1 - matest0_4.id)
|
|
Index Cond: ((1 - matest0_4.id) IS NOT NULL)
|
|
(25 rows)
|
|
|
|
select min(1-id) from matest0;
|
|
min
|
|
-----
|
|
-5
|
|
(1 row)
|
|
|
|
reset enable_seqscan;
|
|
reset enable_parallel_append;
|
|
drop table matest0 cascade;
|
|
NOTICE: drop cascades to 3 other objects
|
|
DETAIL: drop cascades to table matest1
|
|
drop cascades to table matest2
|
|
drop cascades to table matest3
|
|
--
|
|
-- Check that use of an index with an extraneous column doesn't produce
|
|
-- a plan with extraneous sorting
|
|
--
|
|
create table matest0 (a int, b int, c int, d int);
|
|
create table matest1 () inherits(matest0);
|
|
create index matest0i on matest0 (b, c);
|
|
create index matest1i on matest1 (b, c);
|
|
set enable_nestloop = off; -- we want a plan with two MergeAppends
|
|
explain (costs off)
|
|
select t1.* from matest0 t1, matest0 t2
|
|
where t1.b = t2.b and t2.c = t2.d
|
|
order by t1.b limit 10;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------
|
|
Limit
|
|
-> Merge Join
|
|
Merge Cond: (t1.b = t2.b)
|
|
-> Merge Append
|
|
Sort Key: t1.b
|
|
-> Index Scan using matest0i on matest0 t1_1
|
|
-> Index Scan using matest1i on matest1 t1_2
|
|
-> Materialize
|
|
-> Merge Append
|
|
Sort Key: t2.b
|
|
-> Index Scan using matest0i on matest0 t2_1
|
|
Filter: (c = d)
|
|
-> Index Scan using matest1i on matest1 t2_2
|
|
Filter: (c = d)
|
|
(14 rows)
|
|
|
|
reset enable_nestloop;
|
|
drop table matest0 cascade;
|
|
NOTICE: drop cascades to table matest1
|
|
--
|
|
-- Test merge-append for UNION ALL append relations
|
|
--
|
|
set enable_seqscan = off;
|
|
set enable_indexscan = on;
|
|
set enable_bitmapscan = off;
|
|
-- Check handling of duplicated, constant, or volatile targetlist items
|
|
explain (costs off)
|
|
SELECT thousand, tenthous FROM tenk1
|
|
UNION ALL
|
|
SELECT thousand, thousand FROM tenk1
|
|
ORDER BY thousand, tenthous;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: tenk1.thousand, tenk1.tenthous
|
|
-> Index Only Scan using tenk1_thous_tenthous on tenk1
|
|
-> Sort
|
|
Sort Key: tenk1_1.thousand, tenk1_1.thousand
|
|
-> Index Only Scan using tenk1_thous_tenthous on tenk1 tenk1_1
|
|
(6 rows)
|
|
|
|
explain (costs off)
|
|
SELECT thousand, tenthous, thousand+tenthous AS x FROM tenk1
|
|
UNION ALL
|
|
SELECT 42, 42, hundred FROM tenk1
|
|
ORDER BY thousand, tenthous;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: tenk1.thousand, tenk1.tenthous
|
|
-> Index Only Scan using tenk1_thous_tenthous on tenk1
|
|
-> Sort
|
|
Sort Key: 42, 42
|
|
-> Index Only Scan using tenk1_hundred on tenk1 tenk1_1
|
|
(6 rows)
|
|
|
|
explain (costs off)
|
|
SELECT thousand, tenthous FROM tenk1
|
|
UNION ALL
|
|
SELECT thousand, random()::integer FROM tenk1
|
|
ORDER BY thousand, tenthous;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: tenk1.thousand, tenk1.tenthous
|
|
-> Index Only Scan using tenk1_thous_tenthous on tenk1
|
|
-> Sort
|
|
Sort Key: tenk1_1.thousand, ((random())::integer)
|
|
-> Index Only Scan using tenk1_thous_tenthous on tenk1 tenk1_1
|
|
(6 rows)
|
|
|
|
-- Check min/max aggregate optimization
|
|
explain (costs off)
|
|
SELECT min(x) FROM
|
|
(SELECT unique1 AS x FROM tenk1 a
|
|
UNION ALL
|
|
SELECT unique2 AS x FROM tenk1 b) s;
|
|
QUERY PLAN
|
|
--------------------------------------------------------------------
|
|
Result
|
|
InitPlan 1 (returns $0)
|
|
-> Limit
|
|
-> Merge Append
|
|
Sort Key: a.unique1
|
|
-> Index Only Scan using tenk1_unique1 on tenk1 a
|
|
Index Cond: (unique1 IS NOT NULL)
|
|
-> Index Only Scan using tenk1_unique2 on tenk1 b
|
|
Index Cond: (unique2 IS NOT NULL)
|
|
(9 rows)
|
|
|
|
explain (costs off)
|
|
SELECT min(y) FROM
|
|
(SELECT unique1 AS x, unique1 AS y FROM tenk1 a
|
|
UNION ALL
|
|
SELECT unique2 AS x, unique2 AS y FROM tenk1 b) s;
|
|
QUERY PLAN
|
|
--------------------------------------------------------------------
|
|
Result
|
|
InitPlan 1 (returns $0)
|
|
-> Limit
|
|
-> Merge Append
|
|
Sort Key: a.unique1
|
|
-> Index Only Scan using tenk1_unique1 on tenk1 a
|
|
Index Cond: (unique1 IS NOT NULL)
|
|
-> Index Only Scan using tenk1_unique2 on tenk1 b
|
|
Index Cond: (unique2 IS NOT NULL)
|
|
(9 rows)
|
|
|
|
-- XXX planner doesn't recognize that index on unique2 is sufficiently sorted
|
|
explain (costs off)
|
|
SELECT x, y FROM
|
|
(SELECT thousand AS x, tenthous AS y FROM tenk1 a
|
|
UNION ALL
|
|
SELECT unique2 AS x, unique2 AS y FROM tenk1 b) s
|
|
ORDER BY x, y;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: a.thousand, a.tenthous
|
|
-> Index Only Scan using tenk1_thous_tenthous on tenk1 a
|
|
-> Sort
|
|
Sort Key: b.unique2, b.unique2
|
|
-> Index Only Scan using tenk1_unique2 on tenk1 b
|
|
(6 rows)
|
|
|
|
-- exercise rescan code path via a repeatedly-evaluated subquery
|
|
explain (costs off)
|
|
SELECT
|
|
ARRAY(SELECT f.i FROM (
|
|
(SELECT d + g.i FROM generate_series(4, 30, 3) d ORDER BY 1)
|
|
UNION ALL
|
|
(SELECT d + g.i FROM generate_series(0, 30, 5) d ORDER BY 1)
|
|
) f(i)
|
|
ORDER BY f.i LIMIT 10)
|
|
FROM generate_series(1, 3) g(i);
|
|
QUERY PLAN
|
|
----------------------------------------------------------------
|
|
Function Scan on generate_series g
|
|
SubPlan 1
|
|
-> Limit
|
|
-> Merge Append
|
|
Sort Key: ((d.d + g.i))
|
|
-> Sort
|
|
Sort Key: ((d.d + g.i))
|
|
-> Function Scan on generate_series d
|
|
-> Sort
|
|
Sort Key: ((d_1.d + g.i))
|
|
-> Function Scan on generate_series d_1
|
|
(11 rows)
|
|
|
|
SELECT
|
|
ARRAY(SELECT f.i FROM (
|
|
(SELECT d + g.i FROM generate_series(4, 30, 3) d ORDER BY 1)
|
|
UNION ALL
|
|
(SELECT d + g.i FROM generate_series(0, 30, 5) d ORDER BY 1)
|
|
) f(i)
|
|
ORDER BY f.i LIMIT 10)
|
|
FROM generate_series(1, 3) g(i);
|
|
array
|
|
------------------------------
|
|
{1,5,6,8,11,11,14,16,17,20}
|
|
{2,6,7,9,12,12,15,17,18,21}
|
|
{3,7,8,10,13,13,16,18,19,22}
|
|
(3 rows)
|
|
|
|
reset enable_seqscan;
|
|
reset enable_indexscan;
|
|
reset enable_bitmapscan;
|
|
--
|
|
-- Check handling of a constant-null CHECK constraint
|
|
--
|
|
create table cnullparent (f1 int);
|
|
create table cnullchild (check (f1 = 1 or f1 = null)) inherits(cnullparent);
|
|
insert into cnullchild values(1);
|
|
insert into cnullchild values(2);
|
|
insert into cnullchild values(null);
|
|
select * from cnullparent;
|
|
f1
|
|
----
|
|
1
|
|
2
|
|
|
|
(3 rows)
|
|
|
|
select * from cnullparent where f1 = 2;
|
|
f1
|
|
----
|
|
2
|
|
(1 row)
|
|
|
|
drop table cnullparent cascade;
|
|
NOTICE: drop cascades to table cnullchild
|
|
--
|
|
-- Check use of temporary tables with inheritance trees
|
|
--
|
|
create table inh_perm_parent (a1 int);
|
|
create temp table inh_temp_parent (a1 int);
|
|
create temp table inh_temp_child () inherits (inh_perm_parent); -- ok
|
|
create table inh_perm_child () inherits (inh_temp_parent); -- error
|
|
ERROR: cannot inherit from temporary relation "inh_temp_parent"
|
|
create temp table inh_temp_child_2 () inherits (inh_temp_parent); -- ok
|
|
insert into inh_perm_parent values (1);
|
|
insert into inh_temp_parent values (2);
|
|
insert into inh_temp_child values (3);
|
|
insert into inh_temp_child_2 values (4);
|
|
select tableoid::regclass, a1 from inh_perm_parent;
|
|
tableoid | a1
|
|
-----------------+----
|
|
inh_perm_parent | 1
|
|
inh_temp_child | 3
|
|
(2 rows)
|
|
|
|
select tableoid::regclass, a1 from inh_temp_parent;
|
|
tableoid | a1
|
|
------------------+----
|
|
inh_temp_parent | 2
|
|
inh_temp_child_2 | 4
|
|
(2 rows)
|
|
|
|
drop table inh_perm_parent cascade;
|
|
NOTICE: drop cascades to table inh_temp_child
|
|
drop table inh_temp_parent cascade;
|
|
NOTICE: drop cascades to table inh_temp_child_2
|
|
--
|
|
-- Check that constraint exclusion works correctly with partitions using
|
|
-- implicit constraints generated from the partition bound information.
|
|
--
|
|
create table list_parted (
|
|
a varchar
|
|
) partition by list (a);
|
|
create table part_ab_cd partition of list_parted for values in ('ab', 'cd');
|
|
create table part_ef_gh partition of list_parted for values in ('ef', 'gh');
|
|
create table part_null_xy partition of list_parted for values in (null, 'xy');
|
|
explain (costs off) select * from list_parted;
|
|
QUERY PLAN
|
|
----------------------------------------------
|
|
Append
|
|
-> Seq Scan on part_ab_cd list_parted_1
|
|
-> Seq Scan on part_ef_gh list_parted_2
|
|
-> Seq Scan on part_null_xy list_parted_3
|
|
(4 rows)
|
|
|
|
explain (costs off) select * from list_parted where a is null;
|
|
QUERY PLAN
|
|
--------------------------------------
|
|
Seq Scan on part_null_xy list_parted
|
|
Filter: (a IS NULL)
|
|
(2 rows)
|
|
|
|
explain (costs off) select * from list_parted where a is not null;
|
|
QUERY PLAN
|
|
----------------------------------------------
|
|
Append
|
|
-> Seq Scan on part_ab_cd list_parted_1
|
|
Filter: (a IS NOT NULL)
|
|
-> Seq Scan on part_ef_gh list_parted_2
|
|
Filter: (a IS NOT NULL)
|
|
-> Seq Scan on part_null_xy list_parted_3
|
|
Filter: (a IS NOT NULL)
|
|
(7 rows)
|
|
|
|
explain (costs off) select * from list_parted where a in ('ab', 'cd', 'ef');
|
|
QUERY PLAN
|
|
----------------------------------------------------------
|
|
Append
|
|
-> Seq Scan on part_ab_cd list_parted_1
|
|
Filter: ((a)::text = ANY ('{ab,cd,ef}'::text[]))
|
|
-> Seq Scan on part_ef_gh list_parted_2
|
|
Filter: ((a)::text = ANY ('{ab,cd,ef}'::text[]))
|
|
(5 rows)
|
|
|
|
explain (costs off) select * from list_parted where a = 'ab' or a in (null, 'cd');
|
|
QUERY PLAN
|
|
---------------------------------------------------------------------------------
|
|
Seq Scan on part_ab_cd list_parted
|
|
Filter: (((a)::text = 'ab'::text) OR ((a)::text = ANY ('{NULL,cd}'::text[])))
|
|
(2 rows)
|
|
|
|
explain (costs off) select * from list_parted where a = 'ab';
|
|
QUERY PLAN
|
|
------------------------------------
|
|
Seq Scan on part_ab_cd list_parted
|
|
Filter: ((a)::text = 'ab'::text)
|
|
(2 rows)
|
|
|
|
create table range_list_parted (
|
|
a int,
|
|
b char(2)
|
|
) partition by range (a);
|
|
create table part_1_10 partition of range_list_parted for values from (1) to (10) partition by list (b);
|
|
create table part_1_10_ab partition of part_1_10 for values in ('ab');
|
|
create table part_1_10_cd partition of part_1_10 for values in ('cd');
|
|
create table part_10_20 partition of range_list_parted for values from (10) to (20) partition by list (b);
|
|
create table part_10_20_ab partition of part_10_20 for values in ('ab');
|
|
create table part_10_20_cd partition of part_10_20 for values in ('cd');
|
|
create table part_21_30 partition of range_list_parted for values from (21) to (30) partition by list (b);
|
|
create table part_21_30_ab partition of part_21_30 for values in ('ab');
|
|
create table part_21_30_cd partition of part_21_30 for values in ('cd');
|
|
create table part_40_inf partition of range_list_parted for values from (40) to (maxvalue) partition by list (b);
|
|
create table part_40_inf_ab partition of part_40_inf for values in ('ab');
|
|
create table part_40_inf_cd partition of part_40_inf for values in ('cd');
|
|
create table part_40_inf_null partition of part_40_inf for values in (null);
|
|
explain (costs off) select * from range_list_parted;
|
|
QUERY PLAN
|
|
--------------------------------------------------------
|
|
Append
|
|
-> Seq Scan on part_1_10_ab range_list_parted_1
|
|
-> Seq Scan on part_1_10_cd range_list_parted_2
|
|
-> Seq Scan on part_10_20_ab range_list_parted_3
|
|
-> Seq Scan on part_10_20_cd range_list_parted_4
|
|
-> Seq Scan on part_21_30_ab range_list_parted_5
|
|
-> Seq Scan on part_21_30_cd range_list_parted_6
|
|
-> Seq Scan on part_40_inf_ab range_list_parted_7
|
|
-> Seq Scan on part_40_inf_cd range_list_parted_8
|
|
-> Seq Scan on part_40_inf_null range_list_parted_9
|
|
(10 rows)
|
|
|
|
explain (costs off) select * from range_list_parted where a = 5;
|
|
QUERY PLAN
|
|
----------------------------------------------------
|
|
Append
|
|
-> Seq Scan on part_1_10_ab range_list_parted_1
|
|
Filter: (a = 5)
|
|
-> Seq Scan on part_1_10_cd range_list_parted_2
|
|
Filter: (a = 5)
|
|
(5 rows)
|
|
|
|
explain (costs off) select * from range_list_parted where b = 'ab';
|
|
QUERY PLAN
|
|
------------------------------------------------------
|
|
Append
|
|
-> Seq Scan on part_1_10_ab range_list_parted_1
|
|
Filter: (b = 'ab'::bpchar)
|
|
-> Seq Scan on part_10_20_ab range_list_parted_2
|
|
Filter: (b = 'ab'::bpchar)
|
|
-> Seq Scan on part_21_30_ab range_list_parted_3
|
|
Filter: (b = 'ab'::bpchar)
|
|
-> Seq Scan on part_40_inf_ab range_list_parted_4
|
|
Filter: (b = 'ab'::bpchar)
|
|
(9 rows)
|
|
|
|
explain (costs off) select * from range_list_parted where a between 3 and 23 and b in ('ab');
|
|
QUERY PLAN
|
|
-----------------------------------------------------------------
|
|
Append
|
|
-> Seq Scan on part_1_10_ab range_list_parted_1
|
|
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
|
|
-> Seq Scan on part_10_20_ab range_list_parted_2
|
|
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
|
|
-> Seq Scan on part_21_30_ab range_list_parted_3
|
|
Filter: ((a >= 3) AND (a <= 23) AND (b = 'ab'::bpchar))
|
|
(7 rows)
|
|
|
|
/* Should select no rows because range partition key cannot be null */
|
|
explain (costs off) select * from range_list_parted where a is null;
|
|
QUERY PLAN
|
|
--------------------------
|
|
Result
|
|
One-Time Filter: false
|
|
(2 rows)
|
|
|
|
/* Should only select rows from the null-accepting partition */
|
|
explain (costs off) select * from range_list_parted where b is null;
|
|
QUERY PLAN
|
|
------------------------------------------------
|
|
Seq Scan on part_40_inf_null range_list_parted
|
|
Filter: (b IS NULL)
|
|
(2 rows)
|
|
|
|
explain (costs off) select * from range_list_parted where a is not null and a < 67;
|
|
QUERY PLAN
|
|
--------------------------------------------------------
|
|
Append
|
|
-> Seq Scan on part_1_10_ab range_list_parted_1
|
|
Filter: ((a IS NOT NULL) AND (a < 67))
|
|
-> Seq Scan on part_1_10_cd range_list_parted_2
|
|
Filter: ((a IS NOT NULL) AND (a < 67))
|
|
-> Seq Scan on part_10_20_ab range_list_parted_3
|
|
Filter: ((a IS NOT NULL) AND (a < 67))
|
|
-> Seq Scan on part_10_20_cd range_list_parted_4
|
|
Filter: ((a IS NOT NULL) AND (a < 67))
|
|
-> Seq Scan on part_21_30_ab range_list_parted_5
|
|
Filter: ((a IS NOT NULL) AND (a < 67))
|
|
-> Seq Scan on part_21_30_cd range_list_parted_6
|
|
Filter: ((a IS NOT NULL) AND (a < 67))
|
|
-> Seq Scan on part_40_inf_ab range_list_parted_7
|
|
Filter: ((a IS NOT NULL) AND (a < 67))
|
|
-> Seq Scan on part_40_inf_cd range_list_parted_8
|
|
Filter: ((a IS NOT NULL) AND (a < 67))
|
|
-> Seq Scan on part_40_inf_null range_list_parted_9
|
|
Filter: ((a IS NOT NULL) AND (a < 67))
|
|
(19 rows)
|
|
|
|
explain (costs off) select * from range_list_parted where a >= 30;
|
|
QUERY PLAN
|
|
--------------------------------------------------------
|
|
Append
|
|
-> Seq Scan on part_40_inf_ab range_list_parted_1
|
|
Filter: (a >= 30)
|
|
-> Seq Scan on part_40_inf_cd range_list_parted_2
|
|
Filter: (a >= 30)
|
|
-> Seq Scan on part_40_inf_null range_list_parted_3
|
|
Filter: (a >= 30)
|
|
(7 rows)
|
|
|
|
drop table list_parted;
|
|
drop table range_list_parted;
|
|
-- check that constraint exclusion is able to cope with the partition
|
|
-- constraint emitted for multi-column range partitioned tables
|
|
create table mcrparted (a int, b int, c int) partition by range (a, abs(b), c);
|
|
create table mcrparted_def partition of mcrparted default;
|
|
create table mcrparted0 partition of mcrparted for values from (minvalue, minvalue, minvalue) to (1, 1, 1);
|
|
create table mcrparted1 partition of mcrparted for values from (1, 1, 1) to (10, 5, 10);
|
|
create table mcrparted2 partition of mcrparted for values from (10, 5, 10) to (10, 10, 10);
|
|
create table mcrparted3 partition of mcrparted for values from (11, 1, 1) to (20, 10, 10);
|
|
create table mcrparted4 partition of mcrparted for values from (20, 10, 10) to (20, 20, 20);
|
|
create table mcrparted5 partition of mcrparted for values from (20, 20, 20) to (maxvalue, maxvalue, maxvalue);
|
|
explain (costs off) select * from mcrparted where a = 0; -- scans mcrparted0, mcrparted_def
|
|
QUERY PLAN
|
|
---------------------------------------------
|
|
Append
|
|
-> Seq Scan on mcrparted0 mcrparted_1
|
|
Filter: (a = 0)
|
|
-> Seq Scan on mcrparted_def mcrparted_2
|
|
Filter: (a = 0)
|
|
(5 rows)
|
|
|
|
explain (costs off) select * from mcrparted where a = 10 and abs(b) < 5; -- scans mcrparted1, mcrparted_def
|
|
QUERY PLAN
|
|
---------------------------------------------
|
|
Append
|
|
-> Seq Scan on mcrparted1 mcrparted_1
|
|
Filter: ((a = 10) AND (abs(b) < 5))
|
|
-> Seq Scan on mcrparted_def mcrparted_2
|
|
Filter: ((a = 10) AND (abs(b) < 5))
|
|
(5 rows)
|
|
|
|
explain (costs off) select * from mcrparted where a = 10 and abs(b) = 5; -- scans mcrparted1, mcrparted2, mcrparted_def
|
|
QUERY PLAN
|
|
---------------------------------------------
|
|
Append
|
|
-> Seq Scan on mcrparted1 mcrparted_1
|
|
Filter: ((a = 10) AND (abs(b) = 5))
|
|
-> Seq Scan on mcrparted2 mcrparted_2
|
|
Filter: ((a = 10) AND (abs(b) = 5))
|
|
-> Seq Scan on mcrparted_def mcrparted_3
|
|
Filter: ((a = 10) AND (abs(b) = 5))
|
|
(7 rows)
|
|
|
|
explain (costs off) select * from mcrparted where abs(b) = 5; -- scans all partitions
|
|
QUERY PLAN
|
|
---------------------------------------------
|
|
Append
|
|
-> Seq Scan on mcrparted0 mcrparted_1
|
|
Filter: (abs(b) = 5)
|
|
-> Seq Scan on mcrparted1 mcrparted_2
|
|
Filter: (abs(b) = 5)
|
|
-> Seq Scan on mcrparted2 mcrparted_3
|
|
Filter: (abs(b) = 5)
|
|
-> Seq Scan on mcrparted3 mcrparted_4
|
|
Filter: (abs(b) = 5)
|
|
-> Seq Scan on mcrparted4 mcrparted_5
|
|
Filter: (abs(b) = 5)
|
|
-> Seq Scan on mcrparted5 mcrparted_6
|
|
Filter: (abs(b) = 5)
|
|
-> Seq Scan on mcrparted_def mcrparted_7
|
|
Filter: (abs(b) = 5)
|
|
(15 rows)
|
|
|
|
explain (costs off) select * from mcrparted where a > -1; -- scans all partitions
|
|
QUERY PLAN
|
|
---------------------------------------------
|
|
Append
|
|
-> Seq Scan on mcrparted0 mcrparted_1
|
|
Filter: (a > '-1'::integer)
|
|
-> Seq Scan on mcrparted1 mcrparted_2
|
|
Filter: (a > '-1'::integer)
|
|
-> Seq Scan on mcrparted2 mcrparted_3
|
|
Filter: (a > '-1'::integer)
|
|
-> Seq Scan on mcrparted3 mcrparted_4
|
|
Filter: (a > '-1'::integer)
|
|
-> Seq Scan on mcrparted4 mcrparted_5
|
|
Filter: (a > '-1'::integer)
|
|
-> Seq Scan on mcrparted5 mcrparted_6
|
|
Filter: (a > '-1'::integer)
|
|
-> Seq Scan on mcrparted_def mcrparted_7
|
|
Filter: (a > '-1'::integer)
|
|
(15 rows)
|
|
|
|
explain (costs off) select * from mcrparted where a = 20 and abs(b) = 10 and c > 10; -- scans mcrparted4
|
|
QUERY PLAN
|
|
-----------------------------------------------------
|
|
Seq Scan on mcrparted4 mcrparted
|
|
Filter: ((c > 10) AND (a = 20) AND (abs(b) = 10))
|
|
(2 rows)
|
|
|
|
explain (costs off) select * from mcrparted where a = 20 and c > 20; -- scans mcrparted3, mcrparte4, mcrparte5, mcrparted_def
|
|
QUERY PLAN
|
|
---------------------------------------------
|
|
Append
|
|
-> Seq Scan on mcrparted3 mcrparted_1
|
|
Filter: ((c > 20) AND (a = 20))
|
|
-> Seq Scan on mcrparted4 mcrparted_2
|
|
Filter: ((c > 20) AND (a = 20))
|
|
-> Seq Scan on mcrparted5 mcrparted_3
|
|
Filter: ((c > 20) AND (a = 20))
|
|
-> Seq Scan on mcrparted_def mcrparted_4
|
|
Filter: ((c > 20) AND (a = 20))
|
|
(9 rows)
|
|
|
|
-- check that partitioned table Appends cope with being referenced in
|
|
-- subplans
|
|
create table parted_minmax (a int, b varchar(16)) partition by range (a);
|
|
create table parted_minmax1 partition of parted_minmax for values from (1) to (10);
|
|
create index parted_minmax1i on parted_minmax1 (a, b);
|
|
insert into parted_minmax values (1,'12345');
|
|
explain (costs off) select min(a), max(a) from parted_minmax where b = '12345';
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------------------------------
|
|
Result
|
|
InitPlan 1 (returns $0)
|
|
-> Limit
|
|
-> Index Only Scan using parted_minmax1i on parted_minmax1 parted_minmax
|
|
Index Cond: ((a IS NOT NULL) AND (b = '12345'::text))
|
|
InitPlan 2 (returns $1)
|
|
-> Limit
|
|
-> Index Only Scan Backward using parted_minmax1i on parted_minmax1 parted_minmax_1
|
|
Index Cond: ((a IS NOT NULL) AND (b = '12345'::text))
|
|
(9 rows)
|
|
|
|
select min(a), max(a) from parted_minmax where b = '12345';
|
|
min | max
|
|
-----+-----
|
|
1 | 1
|
|
(1 row)
|
|
|
|
drop table parted_minmax;
|
|
-- Test code that uses Append nodes in place of MergeAppend when the
|
|
-- partition ordering matches the desired ordering.
|
|
create index mcrparted_a_abs_c_idx on mcrparted (a, abs(b), c);
|
|
-- MergeAppend must be used when a default partition exists
|
|
explain (costs off) select * from mcrparted order by a, abs(b), c;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: mcrparted.a, (abs(mcrparted.b)), mcrparted.c
|
|
-> Index Scan using mcrparted0_a_abs_c_idx on mcrparted0 mcrparted_1
|
|
-> Index Scan using mcrparted1_a_abs_c_idx on mcrparted1 mcrparted_2
|
|
-> Index Scan using mcrparted2_a_abs_c_idx on mcrparted2 mcrparted_3
|
|
-> Index Scan using mcrparted3_a_abs_c_idx on mcrparted3 mcrparted_4
|
|
-> Index Scan using mcrparted4_a_abs_c_idx on mcrparted4 mcrparted_5
|
|
-> Index Scan using mcrparted5_a_abs_c_idx on mcrparted5 mcrparted_6
|
|
-> Index Scan using mcrparted_def_a_abs_c_idx on mcrparted_def mcrparted_7
|
|
(9 rows)
|
|
|
|
drop table mcrparted_def;
|
|
-- Append is used for a RANGE partitioned table with no default
|
|
-- and no subpartitions
|
|
explain (costs off) select * from mcrparted order by a, abs(b), c;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------------
|
|
Append
|
|
-> Index Scan using mcrparted0_a_abs_c_idx on mcrparted0 mcrparted_1
|
|
-> Index Scan using mcrparted1_a_abs_c_idx on mcrparted1 mcrparted_2
|
|
-> Index Scan using mcrparted2_a_abs_c_idx on mcrparted2 mcrparted_3
|
|
-> Index Scan using mcrparted3_a_abs_c_idx on mcrparted3 mcrparted_4
|
|
-> Index Scan using mcrparted4_a_abs_c_idx on mcrparted4 mcrparted_5
|
|
-> Index Scan using mcrparted5_a_abs_c_idx on mcrparted5 mcrparted_6
|
|
(7 rows)
|
|
|
|
-- Append is used with subpaths in reverse order with backwards index scans
|
|
explain (costs off) select * from mcrparted order by a desc, abs(b) desc, c desc;
|
|
QUERY PLAN
|
|
----------------------------------------------------------------------------------
|
|
Append
|
|
-> Index Scan Backward using mcrparted5_a_abs_c_idx on mcrparted5 mcrparted_6
|
|
-> Index Scan Backward using mcrparted4_a_abs_c_idx on mcrparted4 mcrparted_5
|
|
-> Index Scan Backward using mcrparted3_a_abs_c_idx on mcrparted3 mcrparted_4
|
|
-> Index Scan Backward using mcrparted2_a_abs_c_idx on mcrparted2 mcrparted_3
|
|
-> Index Scan Backward using mcrparted1_a_abs_c_idx on mcrparted1 mcrparted_2
|
|
-> Index Scan Backward using mcrparted0_a_abs_c_idx on mcrparted0 mcrparted_1
|
|
(7 rows)
|
|
|
|
-- check that Append plan is used containing a MergeAppend for sub-partitions
|
|
-- that are unordered.
|
|
drop table mcrparted5;
|
|
create table mcrparted5 partition of mcrparted for values from (20, 20, 20) to (maxvalue, maxvalue, maxvalue) partition by list (a);
|
|
create table mcrparted5a partition of mcrparted5 for values in(20);
|
|
create table mcrparted5_def partition of mcrparted5 default;
|
|
explain (costs off) select * from mcrparted order by a, abs(b), c;
|
|
QUERY PLAN
|
|
---------------------------------------------------------------------------------------
|
|
Append
|
|
-> Index Scan using mcrparted0_a_abs_c_idx on mcrparted0 mcrparted_1
|
|
-> Index Scan using mcrparted1_a_abs_c_idx on mcrparted1 mcrparted_2
|
|
-> Index Scan using mcrparted2_a_abs_c_idx on mcrparted2 mcrparted_3
|
|
-> Index Scan using mcrparted3_a_abs_c_idx on mcrparted3 mcrparted_4
|
|
-> Index Scan using mcrparted4_a_abs_c_idx on mcrparted4 mcrparted_5
|
|
-> Merge Append
|
|
Sort Key: mcrparted_7.a, (abs(mcrparted_7.b)), mcrparted_7.c
|
|
-> Index Scan using mcrparted5a_a_abs_c_idx on mcrparted5a mcrparted_7
|
|
-> Index Scan using mcrparted5_def_a_abs_c_idx on mcrparted5_def mcrparted_8
|
|
(10 rows)
|
|
|
|
drop table mcrparted5_def;
|
|
-- check that an Append plan is used and the sub-partitions are flattened
|
|
-- into the main Append when the sub-partition is unordered but contains
|
|
-- just a single sub-partition.
|
|
explain (costs off) select a, abs(b) from mcrparted order by a, abs(b), c;
|
|
QUERY PLAN
|
|
---------------------------------------------------------------------------
|
|
Append
|
|
-> Index Scan using mcrparted0_a_abs_c_idx on mcrparted0 mcrparted_1
|
|
-> Index Scan using mcrparted1_a_abs_c_idx on mcrparted1 mcrparted_2
|
|
-> Index Scan using mcrparted2_a_abs_c_idx on mcrparted2 mcrparted_3
|
|
-> Index Scan using mcrparted3_a_abs_c_idx on mcrparted3 mcrparted_4
|
|
-> Index Scan using mcrparted4_a_abs_c_idx on mcrparted4 mcrparted_5
|
|
-> Index Scan using mcrparted5a_a_abs_c_idx on mcrparted5a mcrparted_6
|
|
(7 rows)
|
|
|
|
-- check that Append is used when the sub-partitioned tables are pruned
|
|
-- during planning.
|
|
explain (costs off) select * from mcrparted where a < 20 order by a, abs(b), c;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------------
|
|
Append
|
|
-> Index Scan using mcrparted0_a_abs_c_idx on mcrparted0 mcrparted_1
|
|
Index Cond: (a < 20)
|
|
-> Index Scan using mcrparted1_a_abs_c_idx on mcrparted1 mcrparted_2
|
|
Index Cond: (a < 20)
|
|
-> Index Scan using mcrparted2_a_abs_c_idx on mcrparted2 mcrparted_3
|
|
Index Cond: (a < 20)
|
|
-> Index Scan using mcrparted3_a_abs_c_idx on mcrparted3 mcrparted_4
|
|
Index Cond: (a < 20)
|
|
(9 rows)
|
|
|
|
set enable_bitmapscan to off;
|
|
set enable_sort to off;
|
|
create table mclparted (a int) partition by list(a);
|
|
create table mclparted1 partition of mclparted for values in(1);
|
|
create table mclparted2 partition of mclparted for values in(2);
|
|
create index on mclparted (a);
|
|
-- Ensure an Append is used for a list partition with an order by.
|
|
explain (costs off) select * from mclparted order by a;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using mclparted1_a_idx on mclparted1 mclparted_1
|
|
-> Index Only Scan using mclparted2_a_idx on mclparted2 mclparted_2
|
|
(3 rows)
|
|
|
|
-- Ensure a MergeAppend is used when a partition exists with interleaved
|
|
-- datums in the partition bound.
|
|
create table mclparted3_5 partition of mclparted for values in(3,5);
|
|
create table mclparted4 partition of mclparted for values in(4);
|
|
explain (costs off) select * from mclparted order by a;
|
|
QUERY PLAN
|
|
----------------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: mclparted.a
|
|
-> Index Only Scan using mclparted1_a_idx on mclparted1 mclparted_1
|
|
-> Index Only Scan using mclparted2_a_idx on mclparted2 mclparted_2
|
|
-> Index Only Scan using mclparted3_5_a_idx on mclparted3_5 mclparted_3
|
|
-> Index Only Scan using mclparted4_a_idx on mclparted4 mclparted_4
|
|
(6 rows)
|
|
|
|
explain (costs off) select * from mclparted where a in(3,4,5) order by a;
|
|
QUERY PLAN
|
|
----------------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: mclparted.a
|
|
-> Index Only Scan using mclparted3_5_a_idx on mclparted3_5 mclparted_1
|
|
Index Cond: (a = ANY ('{3,4,5}'::integer[]))
|
|
-> Index Only Scan using mclparted4_a_idx on mclparted4 mclparted_2
|
|
Index Cond: (a = ANY ('{3,4,5}'::integer[]))
|
|
(6 rows)
|
|
|
|
-- Introduce a NULL and DEFAULT partition so we can test more complex cases
|
|
create table mclparted_null partition of mclparted for values in(null);
|
|
create table mclparted_def partition of mclparted default;
|
|
-- Append can be used providing we don't scan the interleaved partition
|
|
explain (costs off) select * from mclparted where a in(1,2,4) order by a;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using mclparted1_a_idx on mclparted1 mclparted_1
|
|
Index Cond: (a = ANY ('{1,2,4}'::integer[]))
|
|
-> Index Only Scan using mclparted2_a_idx on mclparted2 mclparted_2
|
|
Index Cond: (a = ANY ('{1,2,4}'::integer[]))
|
|
-> Index Only Scan using mclparted4_a_idx on mclparted4 mclparted_3
|
|
Index Cond: (a = ANY ('{1,2,4}'::integer[]))
|
|
(7 rows)
|
|
|
|
explain (costs off) select * from mclparted where a in(1,2,4) or a is null order by a;
|
|
QUERY PLAN
|
|
--------------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using mclparted1_a_idx on mclparted1 mclparted_1
|
|
Filter: ((a = ANY ('{1,2,4}'::integer[])) OR (a IS NULL))
|
|
-> Index Only Scan using mclparted2_a_idx on mclparted2 mclparted_2
|
|
Filter: ((a = ANY ('{1,2,4}'::integer[])) OR (a IS NULL))
|
|
-> Index Only Scan using mclparted4_a_idx on mclparted4 mclparted_3
|
|
Filter: ((a = ANY ('{1,2,4}'::integer[])) OR (a IS NULL))
|
|
-> Index Only Scan using mclparted_null_a_idx on mclparted_null mclparted_4
|
|
Filter: ((a = ANY ('{1,2,4}'::integer[])) OR (a IS NULL))
|
|
(9 rows)
|
|
|
|
-- Test a more complex case where the NULL partition allows some other value
|
|
drop table mclparted_null;
|
|
create table mclparted_0_null partition of mclparted for values in(0,null);
|
|
-- Ensure MergeAppend is used since 0 and NULLs are in the same partition.
|
|
explain (costs off) select * from mclparted where a in(1,2,4) or a is null order by a;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: mclparted.a
|
|
-> Index Only Scan using mclparted_0_null_a_idx on mclparted_0_null mclparted_1
|
|
Filter: ((a = ANY ('{1,2,4}'::integer[])) OR (a IS NULL))
|
|
-> Index Only Scan using mclparted1_a_idx on mclparted1 mclparted_2
|
|
Filter: ((a = ANY ('{1,2,4}'::integer[])) OR (a IS NULL))
|
|
-> Index Only Scan using mclparted2_a_idx on mclparted2 mclparted_3
|
|
Filter: ((a = ANY ('{1,2,4}'::integer[])) OR (a IS NULL))
|
|
-> Index Only Scan using mclparted4_a_idx on mclparted4 mclparted_4
|
|
Filter: ((a = ANY ('{1,2,4}'::integer[])) OR (a IS NULL))
|
|
(10 rows)
|
|
|
|
explain (costs off) select * from mclparted where a in(0,1,2,4) order by a;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: mclparted.a
|
|
-> Index Only Scan using mclparted_0_null_a_idx on mclparted_0_null mclparted_1
|
|
Index Cond: (a = ANY ('{0,1,2,4}'::integer[]))
|
|
-> Index Only Scan using mclparted1_a_idx on mclparted1 mclparted_2
|
|
Index Cond: (a = ANY ('{0,1,2,4}'::integer[]))
|
|
-> Index Only Scan using mclparted2_a_idx on mclparted2 mclparted_3
|
|
Index Cond: (a = ANY ('{0,1,2,4}'::integer[]))
|
|
-> Index Only Scan using mclparted4_a_idx on mclparted4 mclparted_4
|
|
Index Cond: (a = ANY ('{0,1,2,4}'::integer[]))
|
|
(10 rows)
|
|
|
|
-- Ensure Append is used when the null partition is pruned
|
|
explain (costs off) select * from mclparted where a in(1,2,4) order by a;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using mclparted1_a_idx on mclparted1 mclparted_1
|
|
Index Cond: (a = ANY ('{1,2,4}'::integer[]))
|
|
-> Index Only Scan using mclparted2_a_idx on mclparted2 mclparted_2
|
|
Index Cond: (a = ANY ('{1,2,4}'::integer[]))
|
|
-> Index Only Scan using mclparted4_a_idx on mclparted4 mclparted_3
|
|
Index Cond: (a = ANY ('{1,2,4}'::integer[]))
|
|
(7 rows)
|
|
|
|
-- Ensure MergeAppend is used when the default partition is not pruned
|
|
explain (costs off) select * from mclparted where a in(1,2,4,100) order by a;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------------
|
|
Merge Append
|
|
Sort Key: mclparted.a
|
|
-> Index Only Scan using mclparted1_a_idx on mclparted1 mclparted_1
|
|
Index Cond: (a = ANY ('{1,2,4,100}'::integer[]))
|
|
-> Index Only Scan using mclparted2_a_idx on mclparted2 mclparted_2
|
|
Index Cond: (a = ANY ('{1,2,4,100}'::integer[]))
|
|
-> Index Only Scan using mclparted4_a_idx on mclparted4 mclparted_3
|
|
Index Cond: (a = ANY ('{1,2,4,100}'::integer[]))
|
|
-> Index Only Scan using mclparted_def_a_idx on mclparted_def mclparted_4
|
|
Index Cond: (a = ANY ('{1,2,4,100}'::integer[]))
|
|
(10 rows)
|
|
|
|
drop table mclparted;
|
|
reset enable_sort;
|
|
reset enable_bitmapscan;
|
|
-- Ensure subplans which don't have a path with the correct pathkeys get
|
|
-- sorted correctly.
|
|
drop index mcrparted_a_abs_c_idx;
|
|
create index on mcrparted1 (a, abs(b), c);
|
|
create index on mcrparted2 (a, abs(b), c);
|
|
create index on mcrparted3 (a, abs(b), c);
|
|
create index on mcrparted4 (a, abs(b), c);
|
|
explain (costs off) select * from mcrparted where a < 20 order by a, abs(b), c limit 1;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------------------
|
|
Limit
|
|
-> Append
|
|
-> Sort
|
|
Sort Key: mcrparted_1.a, (abs(mcrparted_1.b)), mcrparted_1.c
|
|
-> Seq Scan on mcrparted0 mcrparted_1
|
|
Filter: (a < 20)
|
|
-> Index Scan using mcrparted1_a_abs_c_idx on mcrparted1 mcrparted_2
|
|
Index Cond: (a < 20)
|
|
-> Index Scan using mcrparted2_a_abs_c_idx on mcrparted2 mcrparted_3
|
|
Index Cond: (a < 20)
|
|
-> Index Scan using mcrparted3_a_abs_c_idx on mcrparted3 mcrparted_4
|
|
Index Cond: (a < 20)
|
|
(12 rows)
|
|
|
|
set enable_bitmapscan = 0;
|
|
-- Ensure Append node can be used when the partition is ordered by some
|
|
-- pathkeys which were deemed redundant.
|
|
explain (costs off) select * from mcrparted where a = 10 order by a, abs(b), c;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------------
|
|
Append
|
|
-> Index Scan using mcrparted1_a_abs_c_idx on mcrparted1 mcrparted_1
|
|
Index Cond: (a = 10)
|
|
-> Index Scan using mcrparted2_a_abs_c_idx on mcrparted2 mcrparted_2
|
|
Index Cond: (a = 10)
|
|
(5 rows)
|
|
|
|
reset enable_bitmapscan;
|
|
drop table mcrparted;
|
|
-- Ensure LIST partitions allow an Append to be used instead of a MergeAppend
|
|
create table bool_lp (b bool) partition by list(b);
|
|
create table bool_lp_true partition of bool_lp for values in(true);
|
|
create table bool_lp_false partition of bool_lp for values in(false);
|
|
create index on bool_lp (b);
|
|
explain (costs off) select * from bool_lp order by b;
|
|
QUERY PLAN
|
|
----------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using bool_lp_false_b_idx on bool_lp_false bool_lp_1
|
|
-> Index Only Scan using bool_lp_true_b_idx on bool_lp_true bool_lp_2
|
|
(3 rows)
|
|
|
|
drop table bool_lp;
|
|
-- Ensure const bool quals can be properly detected as redundant
|
|
create table bool_rp (b bool, a int) partition by range(b,a);
|
|
create table bool_rp_false_1k partition of bool_rp for values from (false,0) to (false,1000);
|
|
create table bool_rp_true_1k partition of bool_rp for values from (true,0) to (true,1000);
|
|
create table bool_rp_false_2k partition of bool_rp for values from (false,1000) to (false,2000);
|
|
create table bool_rp_true_2k partition of bool_rp for values from (true,1000) to (true,2000);
|
|
create index on bool_rp (b,a);
|
|
explain (costs off) select * from bool_rp where b = true order by b,a;
|
|
QUERY PLAN
|
|
----------------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using bool_rp_true_1k_b_a_idx on bool_rp_true_1k bool_rp_1
|
|
Index Cond: (b = true)
|
|
-> Index Only Scan using bool_rp_true_2k_b_a_idx on bool_rp_true_2k bool_rp_2
|
|
Index Cond: (b = true)
|
|
(5 rows)
|
|
|
|
explain (costs off) select * from bool_rp where b = false order by b,a;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using bool_rp_false_1k_b_a_idx on bool_rp_false_1k bool_rp_1
|
|
Index Cond: (b = false)
|
|
-> Index Only Scan using bool_rp_false_2k_b_a_idx on bool_rp_false_2k bool_rp_2
|
|
Index Cond: (b = false)
|
|
(5 rows)
|
|
|
|
explain (costs off) select * from bool_rp where b = true order by a;
|
|
QUERY PLAN
|
|
----------------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using bool_rp_true_1k_b_a_idx on bool_rp_true_1k bool_rp_1
|
|
Index Cond: (b = true)
|
|
-> Index Only Scan using bool_rp_true_2k_b_a_idx on bool_rp_true_2k bool_rp_2
|
|
Index Cond: (b = true)
|
|
(5 rows)
|
|
|
|
explain (costs off) select * from bool_rp where b = false order by a;
|
|
QUERY PLAN
|
|
------------------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using bool_rp_false_1k_b_a_idx on bool_rp_false_1k bool_rp_1
|
|
Index Cond: (b = false)
|
|
-> Index Only Scan using bool_rp_false_2k_b_a_idx on bool_rp_false_2k bool_rp_2
|
|
Index Cond: (b = false)
|
|
(5 rows)
|
|
|
|
drop table bool_rp;
|
|
-- Ensure an Append scan is chosen when the partition order is a subset of
|
|
-- the required order.
|
|
create table range_parted (a int, b int, c int) partition by range(a, b);
|
|
create table range_parted1 partition of range_parted for values from (0,0) to (10,10);
|
|
create table range_parted2 partition of range_parted for values from (10,10) to (20,20);
|
|
create index on range_parted (a,b,c);
|
|
explain (costs off) select * from range_parted order by a,b,c;
|
|
QUERY PLAN
|
|
-------------------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan using range_parted1_a_b_c_idx on range_parted1 range_parted_1
|
|
-> Index Only Scan using range_parted2_a_b_c_idx on range_parted2 range_parted_2
|
|
(3 rows)
|
|
|
|
explain (costs off) select * from range_parted order by a desc,b desc,c desc;
|
|
QUERY PLAN
|
|
----------------------------------------------------------------------------------------------
|
|
Append
|
|
-> Index Only Scan Backward using range_parted2_a_b_c_idx on range_parted2 range_parted_2
|
|
-> Index Only Scan Backward using range_parted1_a_b_c_idx on range_parted1 range_parted_1
|
|
(3 rows)
|
|
|
|
drop table range_parted;
|
|
-- Check that we allow access to a child table's statistics when the user
|
|
-- has permissions only for the parent table.
|
|
create table permtest_parent (a int, b text, c text) partition by list (a);
|
|
create table permtest_child (b text, c text, a int) partition by list (b);
|
|
create table permtest_grandchild (c text, b text, a int);
|
|
alter table permtest_child attach partition permtest_grandchild for values in ('a');
|
|
alter table permtest_parent attach partition permtest_child for values in (1);
|
|
create index on permtest_parent (left(c, 3));
|
|
insert into permtest_parent
|
|
select 1, 'a', left(md5(i::text), 5) from generate_series(0, 100) i;
|
|
analyze permtest_parent;
|
|
create role regress_no_child_access;
|
|
revoke all on permtest_grandchild from regress_no_child_access;
|
|
grant select on permtest_parent to regress_no_child_access;
|
|
set session authorization regress_no_child_access;
|
|
-- without stats access, these queries would produce hash join plans:
|
|
explain (costs off)
|
|
select * from permtest_parent p1 inner join permtest_parent p2
|
|
on p1.a = p2.a and p1.c ~ 'a1$';
|
|
QUERY PLAN
|
|
------------------------------------------
|
|
Nested Loop
|
|
Join Filter: (p1.a = p2.a)
|
|
-> Seq Scan on permtest_grandchild p1
|
|
Filter: (c ~ 'a1$'::text)
|
|
-> Seq Scan on permtest_grandchild p2
|
|
(5 rows)
|
|
|
|
explain (costs off)
|
|
select * from permtest_parent p1 inner join permtest_parent p2
|
|
on p1.a = p2.a and left(p1.c, 3) ~ 'a1$';
|
|
QUERY PLAN
|
|
----------------------------------------------
|
|
Nested Loop
|
|
Join Filter: (p1.a = p2.a)
|
|
-> Seq Scan on permtest_grandchild p1
|
|
Filter: ("left"(c, 3) ~ 'a1$'::text)
|
|
-> Seq Scan on permtest_grandchild p2
|
|
(5 rows)
|
|
|
|
reset session authorization;
|
|
revoke all on permtest_parent from regress_no_child_access;
|
|
grant select(a,c) on permtest_parent to regress_no_child_access;
|
|
set session authorization regress_no_child_access;
|
|
explain (costs off)
|
|
select p2.a, p1.c from permtest_parent p1 inner join permtest_parent p2
|
|
on p1.a = p2.a and p1.c ~ 'a1$';
|
|
QUERY PLAN
|
|
------------------------------------------
|
|
Nested Loop
|
|
Join Filter: (p1.a = p2.a)
|
|
-> Seq Scan on permtest_grandchild p1
|
|
Filter: (c ~ 'a1$'::text)
|
|
-> Seq Scan on permtest_grandchild p2
|
|
(5 rows)
|
|
|
|
-- we will not have access to the expression index's stats here:
|
|
explain (costs off)
|
|
select p2.a, p1.c from permtest_parent p1 inner join permtest_parent p2
|
|
on p1.a = p2.a and left(p1.c, 3) ~ 'a1$';
|
|
QUERY PLAN
|
|
----------------------------------------------------
|
|
Hash Join
|
|
Hash Cond: (p2.a = p1.a)
|
|
-> Seq Scan on permtest_grandchild p2
|
|
-> Hash
|
|
-> Seq Scan on permtest_grandchild p1
|
|
Filter: ("left"(c, 3) ~ 'a1$'::text)
|
|
(6 rows)
|
|
|
|
reset session authorization;
|
|
revoke all on permtest_parent from regress_no_child_access;
|
|
drop role regress_no_child_access;
|
|
drop table permtest_parent;
|
|
-- Verify that constraint errors across partition root / child are
|
|
-- handled correctly (Bug #16293)
|
|
CREATE TABLE errtst_parent (
|
|
partid int not null,
|
|
shdata int not null,
|
|
data int NOT NULL DEFAULT 0,
|
|
CONSTRAINT shdata_small CHECK(shdata < 3)
|
|
) PARTITION BY RANGE (partid);
|
|
-- fast defaults lead to attribute mapping being used in one
|
|
-- direction, but not the other
|
|
CREATE TABLE errtst_child_fastdef (
|
|
partid int not null,
|
|
shdata int not null,
|
|
CONSTRAINT shdata_small CHECK(shdata < 3)
|
|
);
|
|
-- no remapping in either direction necessary
|
|
CREATE TABLE errtst_child_plaindef (
|
|
partid int not null,
|
|
shdata int not null,
|
|
data int NOT NULL DEFAULT 0,
|
|
CONSTRAINT shdata_small CHECK(shdata < 3),
|
|
CHECK(data < 10)
|
|
);
|
|
-- remapping in both direction
|
|
CREATE TABLE errtst_child_reorder (
|
|
data int NOT NULL DEFAULT 0,
|
|
shdata int not null,
|
|
partid int not null,
|
|
CONSTRAINT shdata_small CHECK(shdata < 3),
|
|
CHECK(data < 10)
|
|
);
|
|
ALTER TABLE errtst_child_fastdef ADD COLUMN data int NOT NULL DEFAULT 0;
|
|
ALTER TABLE errtst_child_fastdef ADD CONSTRAINT errtest_child_fastdef_data_check CHECK (data < 10);
|
|
ALTER TABLE errtst_parent ATTACH PARTITION errtst_child_fastdef FOR VALUES FROM (0) TO (10);
|
|
ALTER TABLE errtst_parent ATTACH PARTITION errtst_child_plaindef FOR VALUES FROM (10) TO (20);
|
|
ALTER TABLE errtst_parent ATTACH PARTITION errtst_child_reorder FOR VALUES FROM (20) TO (30);
|
|
-- insert without child check constraint error
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ( '0', '1', '5');
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ('10', '1', '5');
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ('20', '1', '5');
|
|
-- insert with child check constraint error
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ( '0', '1', '10');
|
|
ERROR: new row for relation "errtst_child_fastdef" violates check constraint "errtest_child_fastdef_data_check"
|
|
DETAIL: Failing row contains (0, 1, 10).
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ('10', '1', '10');
|
|
ERROR: new row for relation "errtst_child_plaindef" violates check constraint "errtst_child_plaindef_data_check"
|
|
DETAIL: Failing row contains (10, 1, 10).
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ('20', '1', '10');
|
|
ERROR: new row for relation "errtst_child_reorder" violates check constraint "errtst_child_reorder_data_check"
|
|
DETAIL: Failing row contains (20, 1, 10).
|
|
-- insert with child not null constraint error
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ( '0', '1', NULL);
|
|
ERROR: null value in column "data" of relation "errtst_child_fastdef" violates not-null constraint
|
|
DETAIL: Failing row contains (0, 1, null).
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ('10', '1', NULL);
|
|
ERROR: null value in column "data" of relation "errtst_child_plaindef" violates not-null constraint
|
|
DETAIL: Failing row contains (10, 1, null).
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ('20', '1', NULL);
|
|
ERROR: null value in column "data" of relation "errtst_child_reorder" violates not-null constraint
|
|
DETAIL: Failing row contains (20, 1, null).
|
|
-- insert with shared check constraint error
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ( '0', '5', '5');
|
|
ERROR: new row for relation "errtst_child_fastdef" violates check constraint "shdata_small"
|
|
DETAIL: Failing row contains (0, 5, 5).
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ('10', '5', '5');
|
|
ERROR: new row for relation "errtst_child_plaindef" violates check constraint "shdata_small"
|
|
DETAIL: Failing row contains (10, 5, 5).
|
|
INSERT INTO errtst_parent(partid, shdata, data) VALUES ('20', '5', '5');
|
|
ERROR: new row for relation "errtst_child_reorder" violates check constraint "shdata_small"
|
|
DETAIL: Failing row contains (20, 5, 5).
|
|
-- within partition update without child check constraint violation
|
|
BEGIN;
|
|
UPDATE errtst_parent SET data = data + 1 WHERE partid = 0;
|
|
UPDATE errtst_parent SET data = data + 1 WHERE partid = 10;
|
|
UPDATE errtst_parent SET data = data + 1 WHERE partid = 20;
|
|
ROLLBACK;
|
|
-- within partition update with child check constraint violation
|
|
UPDATE errtst_parent SET data = data + 10 WHERE partid = 0;
|
|
ERROR: new row for relation "errtst_child_fastdef" violates check constraint "errtest_child_fastdef_data_check"
|
|
DETAIL: Failing row contains (0, 1, 15).
|
|
UPDATE errtst_parent SET data = data + 10 WHERE partid = 10;
|
|
ERROR: new row for relation "errtst_child_plaindef" violates check constraint "errtst_child_plaindef_data_check"
|
|
DETAIL: Failing row contains (10, 1, 15).
|
|
UPDATE errtst_parent SET data = data + 10 WHERE partid = 20;
|
|
ERROR: new row for relation "errtst_child_reorder" violates check constraint "errtst_child_reorder_data_check"
|
|
DETAIL: Failing row contains (20, 1, 15).
|
|
-- direct leaf partition update, without partition id violation
|
|
BEGIN;
|
|
UPDATE errtst_child_fastdef SET partid = 1 WHERE partid = 0;
|
|
UPDATE errtst_child_plaindef SET partid = 11 WHERE partid = 10;
|
|
UPDATE errtst_child_reorder SET partid = 21 WHERE partid = 20;
|
|
ROLLBACK;
|
|
-- direct leaf partition update, with partition id violation
|
|
UPDATE errtst_child_fastdef SET partid = partid + 10 WHERE partid = 0;
|
|
ERROR: new row for relation "errtst_child_fastdef" violates partition constraint
|
|
DETAIL: Failing row contains (10, 1, 5).
|
|
UPDATE errtst_child_plaindef SET partid = partid + 10 WHERE partid = 10;
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ERROR: new row for relation "errtst_child_plaindef" violates partition constraint
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DETAIL: Failing row contains (20, 1, 5).
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UPDATE errtst_child_reorder SET partid = partid + 10 WHERE partid = 20;
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ERROR: new row for relation "errtst_child_reorder" violates partition constraint
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DETAIL: Failing row contains (5, 1, 30).
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-- partition move, without child check constraint violation
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BEGIN;
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UPDATE errtst_parent SET partid = 10, data = data + 1 WHERE partid = 0;
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UPDATE errtst_parent SET partid = 20, data = data + 1 WHERE partid = 10;
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UPDATE errtst_parent SET partid = 0, data = data + 1 WHERE partid = 20;
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ROLLBACK;
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-- partition move, with child check constraint violation
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|
UPDATE errtst_parent SET partid = 10, data = data + 10 WHERE partid = 0;
|
|
ERROR: new row for relation "errtst_child_plaindef" violates check constraint "errtst_child_plaindef_data_check"
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|
DETAIL: Failing row contains (10, 1, 15).
|
|
UPDATE errtst_parent SET partid = 20, data = data + 10 WHERE partid = 10;
|
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ERROR: new row for relation "errtst_child_reorder" violates check constraint "errtst_child_reorder_data_check"
|
|
DETAIL: Failing row contains (20, 1, 15).
|
|
UPDATE errtst_parent SET partid = 0, data = data + 10 WHERE partid = 20;
|
|
ERROR: new row for relation "errtst_child_fastdef" violates check constraint "errtest_child_fastdef_data_check"
|
|
DETAIL: Failing row contains (0, 1, 15).
|
|
-- partition move, without target partition
|
|
UPDATE errtst_parent SET partid = 30, data = data + 10 WHERE partid = 20;
|
|
ERROR: no partition of relation "errtst_parent" found for row
|
|
DETAIL: Partition key of the failing row contains (partid) = (30).
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|
DROP TABLE errtst_parent;
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