| From: | Peter Eisentraut <peter_e(at)gmx(dot)net> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Hiroshi Inoue <Inoue(at)tpf(dot)co(dot)jp>, Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>, Rod Taylor <rbt(at)barchord(dot)com>, Hackers List <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: ALTER TABLE ADD COLUMN column SERIAL -- unexpected |
| Date: | 2001-11-28 20:47:21 |
| Message-ID: | Pine.LNX.4.30.0111281502350.636-100000@peter.localdomain |
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| Lists: | pgsql-hackers |
Bruce Momjian writes:
> o ALTER TABLE ADD COLUMN column SET DEFAULT should fill existing
> rows with DEFAULT value or allow NULLs in existing rows
>
> My guess is that we will have to do spec behavior by default, and add a
> flag to allow NULLs in existing rows.
May I point you to the already existing set of commands that do exactly
what you want:
ALTER TABLE t1 ADD COLUMN name type;
ALTER TABLE t1 ALTER COLUMN name SET DEFAULT foo;
There's no reason to muck around with the spec here.
--
Peter Eisentraut peter_e(at)gmx(dot)net
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