| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> |
| Cc: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, Hiroshi Inoue <inoue(at)tpf(dot)co(dot)jp>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Improving REINDEX for system indexes (long) |
| Date: | 2003-09-28 00:15:48 |
| Message-ID: | 2027.1064708148@sss.pgh.pa.us |
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| Lists: | pgsql-committers pgsql-hackers pgsql-patches |
Alvaro Herrera <alvherre(at)dcc(dot)uchile(dot)cl> writes:
> On Sat, Sep 27, 2003 at 06:37:22PM -0400, Tom Lane wrote:
>> I don't see any way to avoid that, though, since we cannot change the
>> relfilenode value for a shared index.
> What about creating a separate filenode anyway and renaming the files
> afterwards? It would not be an atomic operation anyway, but it would be
> better than the current setup IMHO.
I think it would be difficult to persuade the buffer manager and storage
manager to work with this; from their point of view you'd be moving a
relation underneath them. I doubt it's really worth the trouble; how
often do you need to reindex a shared catalog?
regards, tom lane
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