From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Hiroshi Inoue <Inoue(at)tpf(dot)co(dot)jp>, Peter Eisentraut <peter_e(at)gmx(dot)net>, The Hermit Hacker <scrappy(at)hub(dot)org>, PostgreSQL Development <pgsql-hackers(at)postgreSQL(dot)org> |
Subject: | Re: [HACKERS] Happy column dropping |
Date: | 2000-01-25 02:51:51 |
Message-ID: | 200001250251.VAA21667@candle.pha.pa.us |
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Lists: | pgsql-hackers |
> "Hiroshi Inoue" <Inoue(at)tpf(dot)co(dot)jp> writes:
> > As far as I see,fixed mapping relname to relation filename is the
> > problem. This doesn't allow the coexistence of old and new relation
> > files.
>
> Yes, and Vadim has proposed using relation OIDs as filenames for
> reasons of his own, IIRC.
>
> If we did that we could also solve the problems we have now with
> rolling back table deletion/rename inside an aborted transaction.
>
> I've been resisting this idea, but maybe it's time to bite the bullet
> and accept that relation filenames can't be the same as the logical
> names of the relations.
>
Yes, that is going to happen, clearly. New file names will be
table_name+oid. Solves many problems.
New file name will not be just oid. Too hard to administer.
--
Bruce Momjian | http://www.op.net/~candle
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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