From: Tom Lane <tgl@sss.pgh.pa.us>
To: Alexander M. Pravking <fduch@antar.bryansk.ru>
Cc: pgsql-sql@postgresql.org
Subject: Re: Memory usage on subselect
Date: Sun, 23 May 2004 12:28:18 -0400
Message-ID: <24527.1085329698@sss.pgh.pa.us> (raw)
In-Reply-To: <20040522175419.GB54296@dyatel.antar.bryansk.ru>
References: <20040522175419.GB54296@dyatel.antar.bryansk.ru>
"Alexander M. Pravking" <fduch@antar.bryansk.ru> writes:
> I've got a memory usage problem when I try to do a subselect on the same
> table as the main select (PostgreSQL 7.3.4 on FreeBSD). Here's my query:
> ...
> The "services" table is indexed only on "id" column and has about a
> thousand tuples. sreq(integer, text, timestamptz) is a strict immutable
> function written in SQL.
IIRC, there were intraquery memory leaks associated with SQL-language
functions until fairly recently. Can you try your problem case on 7.4?
Or see if you can rewrite the sreq function in plpgsql.
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, fduch@antar.bryansk.ru
Subject: Re: Memory usage on subselect
In-Reply-To: <24527.1085329698@sss.pgh.pa.us>
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