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From: Thomas Kellerer <spam_eater@gmx.net>
To: pgsql-admin@postgresql.org
Subject: Re: Problem retrieving large records (bytea) data from  a table
Date: Wed, 20 Jul 2011 16:53:51 +0200
Message-ID: <j06q59$bhj$1@dough.gmane.org> (raw)
In-Reply-To: <bnf617dql1hq15cd8vlqdnngdkejtechhg@4ax.com>
References: <bnf617dql1hq15cd8vlqdnngdkejtechhg@4ax.com>

jtkells@verizon.net, 05.07.2011 18:44:
> A while ago the some developers inserted several records with a
> document (stored in doc_Data) that was around 400 - 450 MB each. Now
> when you do a select * (all) from this table you get a hang and the
> system becomes unresponsive.

What application/program is "hanging"? The client that retrieves the data or PostgreSQL itself?

> So I'm not sure how to find these bad records and why I am getting a
> hang.
If your client application is hanging, I don't think there is a single "bad" record, it just chokes on the size of the result set.

Regards
Thomas




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