Re: Any way to speed this up? - Mailing list pgsql-performance

From John Arbash Meinel
Subject Re: Any way to speed this up?
Date
Msg-id 42556C5D.6060106@arbash-meinel.com
Whole thread Raw
In response to Re: Any way to speed this up?  ("Joel Fradkin" <jfradkin@wazagua.com>)
List pgsql-performance
Joel Fradkin wrote:

>Here is the result after putting it back to 4 the original value (I had done
>that prior to your suggestion of using 2 or 3) to see what might change.
>I also vacummed and thought I saw records deleted in associate, which I
>found odd as this is a test site and no new records were added or deleted.
>
>

Well, that looks 2x as fast, right?

You might try
SET enable_mergejoin TO off;

Just to see if you can force a hash-join and see how long that takes.
You might also try increasing work_mem.
You can do that just in the current session with

SET work_mem TO ....;

John
=:->


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