Horton

Re: Collect frequency statistics for arrays

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Alvaro Herrera <alvherre@commandprompt.com>
Cc: Robert Haas <robertmhaas@gmail.com>, Nathan Boley <npboley@gmail.com>, Alexander Korotkov <aekorotkov@gmail.com>, Noah Misch <noah@leadboat.com>, Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2012-03-01T21:51:38Z
Lists: pgsql-hackers 
Alvaro Herrera <alvherre@commandprompt.com> writes:
> Excerpts from Robert Haas's message of jue mar 01 12:00:08 -0300 2012:
>> On Wed, Feb 29, 2012 at 5:43 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> I confess I am nervous about ripping this out.  I am pretty sure we
>> will get complaints about it.  Performance optimizations that benefit
>> group A at the expense of group B are always iffy, and I'm not sure
>> the case of using an array as a path indicator is as uncommon as you
>> seem to think.

> Maybe we should keep it as an option.

How would we make it optional?  There's noplace I can think of to stick
such a knob ...

			regards, tom lane