From: ryan groth <postgres@cpusoftware.com>
To: Steinar H. Gunderson <sgunderson@bigfoot.com>
To: pgsql-performance@postgresql.org
Subject: Re: Joins and full index scans...mysql vs postgres?
Date: Wed, 22 Feb 2006 13:11:13 -0500
Message-ID: <E1FBySH-0005Rw-1H@zeus.liquidweb.com> (raw)
Does this work:
"Merge Left Join (cost=0.00..2656.36 rows=6528 width=1522) (actual
time=0.057..123.659 rows=6528 loops=1)"
" Merge Cond: ("outer".uid = "inner".uid)"
" -> Merge Left Join (cost=0.00..1693.09 rows=6528 width=1264)
(actual time=0.030..58.876 rows=6528 loops=1)"
" Merge Cond: ("outer".uid = "inner".user_id)"
" -> Index Scan using users_pkey on users (cost=0.00..763.81
rows=6528 width=100) (actual time=0.016..9.446 rows=6528 loops=1)"
" -> Index Scan using phorum_users_base_pkey on
phorum_users_base (cost=0.00..822.92 rows=9902 width=1168) (actual
time=0.007..15.674 rows=9845 loops=1)"
" -> Index Scan using useraux_pkey on useraux (cost=0.00..846.40
rows=7582 width=262) (actual time=0.007..11.935 rows=7529 loops=1)"
"Total runtime: 127.442 ms"
> On Wed, Feb 22, 2006 at 12:26:47PM -0500, ryan groth wrote:
> > Postgres Explain
>
> We need to see EXPLAIN ANALYZE results here.
>
> What's your work_mem set to?
>
> /* Steinar */
> --
> Homepage: http://www.sesse.net/
>
> ---------------------------(end of broadcast)---------------------------
> TIP 3: Have you checked our extensive FAQ?
>
> http://www.postgresql.org/docs/faq
>
>
--
> On Wed, Feb 22, 2006 at 12:26:47PM -0500, ryan groth wrote:
> > Postgres Explain
>
> We need to see EXPLAIN ANALYZE results here.
>
> What's your work_mem set to?
>
> /* Steinar */
> --
> Homepage: http://www.sesse.net/
>
> ---------------------------(end of broadcast)---------------------------
> TIP 3: Have you checked our extensive FAQ?
>
> http://www.postgresql.org/docs/faq
>
>
--
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To: pgsql-performance@postgresql.org
Cc: postgres@cpusoftware.com, sgunderson@bigfoot.com
Subject: Re: Joins and full index scans...mysql vs postgres?
In-Reply-To: <E1FBySH-0005Rw-1H@zeus.liquidweb.com>
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