Re: Disabled features on Hot Standby - Mailing list pgsql-hackers

From Robert Haas
Subject Re: Disabled features on Hot Standby
Date
Msg-id CA+TgmoaZo8OJjgrCKBucudzSRZxWxhMB6c8N6rrzP2rz7Zbu_w@mail.gmail.com
Whole thread Raw
In response to Re: Disabled features on Hot Standby  (Jim Nasby <jim@nasby.net>)
List pgsql-hackers
On Fri, Jan 13, 2012 at 10:31 AM, Jim Nasby <jim@nasby.net> wrote:
> Perhaps it would be possible to keep older copies of pages around when there are older transactions running on the
standby?

I've thought about that... it's basically a rollback segment, which
for that matter might be judged superior to what we do on the master
(i.e. VACUUM).  Needless to say, that would be just a teensy bit more
work than we're likely to have time for in 9.2.  But maybe for 10.2...

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company


pgsql-hackers by date:

Previous
From: Robert Haas
Date:
Subject: Re: show Heap Fetches in EXPLAIN for index-only scans
Next
From: Peter Geoghegan
Date:
Subject: Re: show Heap Fetches in EXPLAIN for index-only scans