From: Josh Berkus <josh@agliodbs.com>
To: Robert Haas <robertmhaas@gmail.com>
Cc: pgsql-performance@postgresql.org
Subject: Re: Estimation issue with partitioned tables
Date: Wed, 03 Mar 2010 13:45:53 -0800
Message-ID: <4B8ED891.7060405@agliodbs.com> (raw)
In-Reply-To: <603c8f071003030912k5750abadif64cb36d67ab99ae@mail.gmail.com>
References: <4B8ACFE7.6040207@agliodbs.com>
<603c8f071003030912k5750abadif64cb36d67ab99ae@mail.gmail.com>
> I feel like I've seen these way-too-high row estimates in some other
> postings to -performance, but I'm not sure if it was the same issue.
> You don't by chance have a RTC? I don't think it's likely fixed in 9.0
> but it would be interesting to investigate.
Yeah, I can generate one pretty easily; the behavior is readily
observable and repeatable. Will get on it RSN, but at you said, we're
not doing anything about it for 9.0.
I've a feeling that this will become one of the list of issues to be
fixed with 'real partitioning'.
--Josh Berkus
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To: pgsql-performance@postgresql.org
Cc: josh@agliodbs.com, robertmhaas@gmail.com
Subject: Re: Estimation issue with partitioned tables
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