On 10/18/2016 01:37 PM, Andres Freund wrote: > Hi, > > On 2016-10-09 21:51:07 -0700, Josh Berkus wrote: >> Given that hot_standby_feedback is pretty bulletproof now, and a lot of >> the work in reducing replay conflicts, I think the utility of >> vacuum_defer_cleanup_age is at an end. I really meant so submit a patch >> to remove it to 9.6, but it got away from me. > > HS feedback doesn't e.g. work well with delayed and/or archived replay, > whereas defer_cleanup does.
Oh, point! See, that's why I polled, I knew there was something I was forgetting about. > On the other hand, removing it would make some of the reasoning around > GetOldestXmin() a bit easier. Enough to make it worth breaking the above? -- -- Josh Berkus Red Hat OSAS (any opinions are my own) -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers