Re: pg_dump: use ALTER TABLE for PKs
От | Philip Warner |
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Тема | Re: pg_dump: use ALTER TABLE for PKs |
Дата | |
Msg-id | 3.0.5.32.20020220101159.038136c0@mail.rhyme.com.au обсуждение исходный текст |
Ответ на | Re: pg_dump: use ALTER TABLE for PKs (Stephan Szabo <sszabo@megazone23.bigpanda.com>) |
Ответы |
Re: pg_dump: use ALTER TABLE for PKs
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Список | pgsql-hackers |
At 14:05 19/02/02 -0800, Stephan Szabo wrote: > >Check constraints and not null I believe are inherited by default. >But I just thought of a case that won't dump and restore the same as it >was originally made because we support ONLY on alter table add constraint. > >create table z(a int); >create table z2() inherits(z); >alter table only z add constraint foo1 check(a>4); > >will make z have a constraint on a but not z2 and the check will get >dumped as part of z's definition which will restore with z2 having >the check. This brings to mind a couple of questions: 1. Do you have plans to support inhertiance of PK constraints? 2. Does/will DROP CONSTRAINT support ONLY? ---------------------------------------------------------------- Philip Warner | __---_____ Albatross Consulting Pty. Ltd. |----/ - \ (A.B.N. 75 008 659 498) | /(@) ______---_ Tel: (+61) 0500 83 82 81 | _________ \ Fax: (+61) 0500 83 82 82 | ___________ | Http://www.rhyme.com.au | / \| | --________-- PGP key available upon request, | / and from pgp5.ai.mit.edu:11371 |/
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