From: AJ Weber <aweber@comcast.net>
To: Matheus de Oliveira <matioli.matheus@gmail.com>
Cc: Shaun Thomas <sthomas@optionshouse.com>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: how to improve perf of 131MM row table?
Date: Thu, 26 Jun 2014 10:07:45 -0400
Message-ID: <53AC2931.40003@comcast.net> (raw)
In-Reply-To: <CAJghg4Jd285HNma1tqFB26iJQw+GBug4VgnopA1E=YY4OMOWQw@mail.gmail.com>
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I will try this, but can you clarify the syntax? I only know the VALUES
clause from insert statements, and it would be one set of parens like
VALUES('175769', '175771', ... )
You seem to indicate a VALUES clause that has strange parenthesis
corresponding to it.
Thank you for the feedback and offer to help!
-AJ
On 6/26/2014 9:56 AM, Matheus de Oliveira wrote:
>
> On Thu, Jun 26, 2014 at 10:26 AM, AJ Weber <aweber@comcast.net
> <mailto:aweber@comcast.net>> wrote:
>
> OK, the sample query is attached (hopefully attachments are
> allowed) as "query.sql".
> The "master table" definition is attached as "table1.sql".
> The "detail table" definition is attached as "table2.sql".
> The EXPLAIN (ANALYZE, BUFFERS) output is here:
> http://explain.depesz.com/s/vd5
>
>
> Could you try chaning your query and sending the EXPLAIN of the following?
>
> Instead of `node_id in ('175769', '175771', ...)` try `node_in IN
> (VALUES('175769'), ('175771'), ... )`.
>
>
> --
> Matheus de Oliveira
> Analista de Banco de Dados
> Dextra Sistemas - MPS.Br nível F!
> www.dextra.com.br/postgres <http://www.dextra.com.br/postgres/;
>
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To: pgsql-performance@postgresql.org
Cc: aweber@comcast.net, matioli.matheus@gmail.com, sthomas@optionshouse.com
Subject: Re: how to improve perf of 131MM row table?
In-Reply-To: <53AC2931.40003@comcast.net>
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