| From: | Litao Wu <litaowu(at)yahoo(dot)com> |
|---|---|
| To: | Litao Wu <litaowu(at)yahoo(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: index's relpages after table analyzed |
| Date: | 2004-05-24 17:20:56 |
| Message-ID: | 20040524172056.26507.qmail@web13123.mail.yahoo.com |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
>From PG
http://developer.postgresql.org/docs/postgres/diskusage.html:
"(Remember, relpages is only updated by VACUUM and
ANALYZE.)"
--- Litao Wu <litaowu(at)yahoo(dot)com> wrote:
> Hi,
>
> After a table analyzed a table, the table's relpages
>
> of pg_class gets updated, but not those of
> associated
> indexes, which can be updated by "vacuum analyze".
>
> Is this a feature or a bug?
>
> I have some tables and there are almost only
> inserts. So I do not care about the "dead tuples",
> but do care about the statistics.
>
> Does the above "future/bug" affect the performance?
>
> My PG version is 7.3.2.
>
> Thanks,
>
>
>
>
>
>
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