| From: | Kevin Hunter <hunteke(at)earlham(dot)edu> |
|---|---|
| To: | Joao Ferreira <joao(dot)miguel(dot)c(dot)ferreira(at)gmail(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Postgres General List <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: automatic REINDEX-ing |
| Date: | 2008-08-13 16:41:41 |
| Message-ID: | 48A30EC5.5050901@earlham.edu |
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| Lists: | pgsql-general |
At 12:04p -0400 on Tue, 12 Aug 2008, Joao Ferreira wrote:
> I'm a bit lost here. I'm currently executing VACUUM FULL _and_ REINDEX
> (tbls & idxs) every week.
>
> Should I keep the REINDEX and drop VACUUM FULL ?
>
> How do I iterate to a better approach ?
It might behoove you to read the Notes section of the docs about vacuuming:
http://www.postgresql.org/docs/current/static/sql-vacuum.html
Roughly, VACUUM simply reclaims/frees disk space, while VACUUM FULL
additionally reorganizes disk usage. I'm still don't know *why* this
leads to index bloat, however, just that it does. I must defer that
explication to a Postgres guru.
Kevin
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