Re: tsearch is slow - Mailing list pgsql-general

From Scott Marlowe
Subject Re: tsearch is slow
Date
Msg-id 1142452140.20149.39.camel@state.g2switchworks.com
Whole thread Raw
In response to Re: tsearch is slow  (Abbath <abbath@invitel.hu>)
Responses Re: tsearch is slow
List pgsql-general
On Wed, 2006-03-15 at 13:36, Abbath wrote:
> Hello Richard,
>
> Wednesday, March 15, 2006, 3:35:26 PM, you wrote:
> > If you want to force the data to be cached, just put a cron-job in to
> > run a query for "abc" or whatever once a minute.
>
> I can't guess what the user want to search.

But that query will likely load up all the index info into memory.

> > Of course, if it turns out that your users aren't running the query very
> > often then you're wasting resources, and if they are running it often
> > then again you're wasting resources. But - if you really need to, that's
> > the solution.
>
> It seems if I periodically use VACUUM ANALYZE, it helps to reduce the search
> time...I will see how can I tune it more.

That statement is pretty telling.  You're new to PostgreSQL I'll
assume.  You'll need to read up on the periodic maintenance section of
the docs.

Here ya go:
http://www.postgresql.org/docs/8.1/interactive/maintenance.html

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