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From: Tom Lane <tgl@sss.pgh.pa.us>
To: André Volpato <andre.volpato@ecomtecnologia.com.br>
Cc: pgsql-performance@postgresql.org
Subject: Re: Postgres not using array
Date: Thu, 21 Aug 2008 10:28:00 -0400
Message-ID: <23465.1219328880@sss.pgh.pa.us> (raw)
In-Reply-To: <48AD735D.6040403@ecomtecnologia.com.br>
References: <48AC8292.5000708@ecomtecnologia.com.br>
	<48AD735D.6040403@ecomtecnologia.com.br>

=?ISO-8859-1?Q?Andr=E9_Volpato?= <andre.volpato@ecomtecnologia.com.br> writes:
> Explain output:
>  HashAggregate  (cost=19826.23..19826.96 rows=73 width=160) (actual 
> time=11826.754..11826.754 rows=0 loops=1)
>    ->  Subquery Scan b2  (cost=19167.71..19817.21 rows=722 width=160) 
> (actual time=11826.752..11826.752 rows=0 loops=1)
>          Filter: (bds_internacoes(200805, 200806, (b2.cod)::text, 
> 'qtdI'::text, 'P'::bpchar) >= 1::numeric)
>          ->  Limit  (cost=19167.71..19248.89 rows=2165 width=48) (actual 
> time=415.157..621.043 rows=28923 loops=1)

So I guess the question is "what is the bds_internacoes function, and
why is it so slow?"

			regards, tom lane



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