Re: join ordering via Simulated Annealing
Adriano Lange <alange0001@gmail.com>
From: Adriano Lange <alange0001@gmail.com>
To: pgsql-hackers@postgresql.org
Date: 2009-12-24T02:00:16Z
Lists: pgsql-hackers
Em 22-12-2009 22:23, Jan Urbański escreveu: > o) the initial state is not really a random plan, it's usualy a > left-deep tree (and is very inefficient) and this might skew results. Maybe a QuickPick + SA. http://www.springerlink.com/content/garn64gt61ju5xfa/ http://portal.acm.org/citation.cfm?doid=1559845.1559889 Att Adriano Lange