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help / color / mirror / Atom feedFrom: Michael Paquier <[email protected]>
To: Gavin Flower <[email protected]>
Cc: [email protected]
Subject: Re: POC: GROUP BY optimization
Date: Tue, 2 Oct 2018 11:16:26 +0900
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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On Sat, Jun 30, 2018 at 09:19:13AM +1200, Gavin Flower wrote:
> Additionally put an upper limit threshold on the number of combinations to
> check, fairly large by default?
>
> If first threshold is exceeded, could consider checking out a few more
> selected at random from paths not yet checked, to avoid any bias caused by
> stopping a systematic search. This might prove important when N! is fairly
> large.
Please note that the latest patch available does not apply, so this has
been moved to next CF 2018-11, waiting for input from its author.
--
Michael
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