Re: Memory leaks in record_out and record_send

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Memory leaks in record_out and record_send
Date: 2012-11-13 20:11:02
Message-ID: CA+TgmoYqL+=Bti9nA9H2_xmKE4Yxs4fOFkiSqgUHhEfAiaKK6g@mail.gmail.com
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On Tue, Nov 13, 2012 at 12:18 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> I wonder though if we ought to think about running output functions in
> a short-lived memory context instead of the executor's main context.
> We've considered that before, I think, and it's always been the path
> of least resistance to fix the output functions instead --- but there
> will always be another leak I'm afraid.

Such is the lot of people who code in C. I worry that the number of
memory contexts we're kicking around already is imposing a significant
distributed overhead on the system that is hard to measure but
nevertheless real, and that this will add to it.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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