Re: Collect frequency statistics for arrays - Mailing list 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