Re: Problem retrieving large records (bytea) data from a table

From: Thomas Kellerer <spam_eater(at)gmx(dot)net>
To: pgsql-admin(at)postgresql(dot)org
Subject: Re: Problem retrieving large records (bytea) data from a table
Date: 2011-07-20 14:53:51
Message-ID: j06q59$bhj$1@dough.gmane.org
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jtkells(at)verizon(dot)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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