Hi list, Here's v6 of my expression caching patch. The only change in v6 is added expression cost estimation in costsize.c. I'm setting per-tuple cost of CacheExpr to 0 and moving sub-expression tuple costs into the startup cost.
As always, this work is also available from my Github "cache" branch: https://github.com/intgr/postgres/commits/cache This patch was marked as "Returned with Feedback" from the 2011-11 commitfest. I expected to get to tweak the patch in response to feedback before posting to the next commitfest. But said feedback didn't arrive, and with me being on vacation, I missed the 2012-01 CF deadline. :( I will add it to the 2012-01 commitfest now, I hope that's OK. If not, feel free to remove it and I'll put it in 2012-Next. PS: Jaime, have you had a chance to look at the patch? Even if you're not done with the review, I'd be glad to get some comments earlier. And thanks for reviewing. Regards, Marti -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
