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From: Heikki Linnakangas <hlinnakangas@vmware.com>
To: Stefan Keller <sfkeller@gmail.com>
To: Craig James <cjames@emolecules.com>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Getting query plan alternatives from query planner?
Date: Mon, 14 Apr 2014 22:18:46 +0300
Message-ID: <534C3496.5000409@vmware.com> (raw)
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On 04/14/2014 09:36 PM, Stefan Keller wrote:
> Who's the elephant in the room who is reluctant to introduce explicit hints?

Please read some of the previous discussions on this. Like this, in this 
very same thread:

http://www.postgresql.org/message-id/15381.1395410811@sss.pgh.pa.us

I'd like to have explicit hints, *of the kind explained in that 
message*. Hints that tell the planner what the data distribution is 
like. Hints to override statistics and heuristics used by the planner.

- Heikki


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