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From: Stephen Frost <sfrost@snowman.net>
To: Vincenzo Romano <vincenzo.romano@notorand.it>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>
Cc: Simon Riggs <simon@2ndquadrant.com>
Cc: pgsql-hackers@postgresql.org
Subject: Re: On Scalability
Date: Thu, 7 Oct 2010 10:29:27 -0400
Message-ID: <20101007142927.GT26232@tamriel.snowman.net> (raw)
In-Reply-To: <AANLkTi=ZH-bBoXhsMf0Nj9xxmjoTCTj5Sjgk1cR1h-SH@mail.gmail.com>
References: <1280425184.8613.41.camel@jd-desktop.unknown.charter.com>
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* Vincenzo Romano (vincenzo.romano@notorand.it) wrote:
> I see the main problem in the way the planner "understands" which partition
> is useful and which one is not.
> Having the DDL supporting the feature could just be syntactic sugar
> if the underlying mechanism is inadequate.

I'm pretty sure the point with the DDL would be to have a way for the
user to communicate to the planner more understanding about the
partitioning, not just to be syntactic sugar.  With that additional
information, the planner can make a faster and better decision.

	Stephen

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