Re: pg_depend
От | Philip Warner |
---|---|
Тема | Re: pg_depend |
Дата | |
Msg-id | 3.0.5.32.20010718130815.03071200@mail.rhyme.com.au обсуждение исходный текст |
Ответ на | Re: pg_depend (Hiroshi Inoue <Inoue@tpf.co.jp>) |
Ответы |
Re: pg_depend
Re: pg_depend |
Список | pgsql-hackers |
At 11:25 18/07/01 +0900, Hiroshi Inoue wrote: > >Oops I made a mistake. >Reference name is needed not an object name, >i.e > object relid > object oid > relerence relid > reference oid > reference name > I think any deisgn needs to cater for attr dependencies. eg. create table a (f1 int4, f2 int8); create view view_a as select f2 from a; Then alter table a drop f1; -- Is OK. Should just happen alter table a drop f2; -- Should warn about the view, and/or cascadeetc. alter table a alter f2 float; -- Should trigger a view recompilation. ...same thing needs to happen with constraints that reference attrs I *think* tables are the only items that can have subobjects with dependant. ---------------------------------------------------------------- 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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