| From: | Anj Adu <fotographs(at)gmail(dot)com> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Cc: | pgsql-performance <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: slow index lookup |
| Date: | 2010-06-23 01:00:29 |
| Message-ID: | AANLkTim9I-YzoDuTK381tvAB1txEojQEYz_-XPygt7Ok@mail.gmail.com |
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| Lists: | pgsql-performance |
i have several partitions like this (similar size ...similar data
distribution)..these partitions are only "inserted"..never updated.
Why would I need to vacuum..
I can reindex..just curious what can cause the index to go out of whack.
On Tue, Jun 22, 2010 at 4:44 PM, Alvaro Herrera
<alvherre(at)commandprompt(dot)com> wrote:
> Excerpts from Anj Adu's message of mar jun 22 17:44:39 -0400 2010:
>> This query seems unreasonable slow on a well-indexed table (13 million
>> rows). Separate indexes are present on guardid_id , from_num and
>> targetprt columns.
>
> Maybe you need to vacuum or reindex?
>
> --
> Álvaro Herrera <alvherre(at)commandprompt(dot)com>
> The PostgreSQL Company - Command Prompt, Inc.
> PostgreSQL Replication, Consulting, Custom Development, 24x7 support
>
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