Re: gistchoose vs. bloat
Jeff Davis <pgsql@j-davis.com>
From: Jeff Davis <pgsql@j-davis.com>
To: Alexander Korotkov <aekorotkov@gmail.com>
Cc: pgsql-hackers@postgresql.org
Date: 2012-09-11T06:35:26Z
Lists: pgsql-hackers
On Tue, 2012-09-04 at 19:21 +0400, Alexander Korotkov wrote: > New version of patch is attached. Parameter "randomization" was > introduced. It controls whether to randomize choose. Choose algorithm > was rewritten. > Do you expect it to be bad in any reasonable situations? I'm inclined to just make it always randomize if it's better. I think it would be hard for a user to guess when it's better and when not. Maybe it's useful to turn randomization off for testing purposes, e.g. to ensure determinism? Regards, Jeff Davis