-------- Original Message --------
Subject: Re: [PERFORM] Very slow inner join query Unacceptable latency.
From: Jaime Casanova <jaime@2ndquadrant.com>
Date: Tue, May 21, 2013 2:59 pm
To: Freddie Burgess <fburgess@radiantblue.com>
Cc: psql performance list <pgsql-performance@postgresql.org>, Postgres
General <pgsql-general@postgresql.org>

On Tue, May 21, 2013 at 4:53 PM, <fburgess@radiantblue.com> wrote:
> The SARS_ACTS table currently has 37,115,515 rows
>
> we have indexed: idx_sars_acts_acts_run_id ON SARS_ACTS USING btree
> (sars_run_id)
> we have pk constraint on the SARS_ACTS_RUN table; sars_acts_run_pkey PRIMARY
> KEY (id )
>
> serverdb=# explain select count(*) as y0_ from SARS_ACTS this_ inner join
> SARS_ACTS_RUN tr1_ on this_.SARS_RUN_ID=tr1_.ID where tr1_.ALGORITHM='SMAT';

can you please show us an EXPLAIN ANALYZE of this query (not only
EXPLAIN). please paste it in a file and attach it so it doesn't get
reformatted by the mail client.

what version of postgres is this?

--
Jaime Casanova www.2ndQuadrant.com
Professional PostgreSQL: Soporte 24x7 y capacitación
Phone: +593 4 5107566 Cell: +593 987171157