On 05/24/2011 04:34 PM, Robert Haas wrote:
we could name this feature "partial full page writes" and enable it either with a setting of full_page_writes=partial
+1 to overloading the initial name, but only if the parameter is named 'maybe', 'sometimes', or 'perhaps'.
I've been looking into a similar refactoring of the names here, where we bundle all of these speed over safety things (fsync, full_page_writes, etc.) into one control so they're easier to turn off at once. Not sure if it should be named "web_scale" or "do_you_feel_lucky_punk".
3. Going a bit further, Greg proposed the idea of ripping out our current WAL infrastructure altogether and instead just having one WAL record that says "these byte ranges on this page changed to have these new contents".
The main thing that makes this idea particularly interesting to me, over the other two, is that it might translate well into the idea of using sync_file_range to aim for a finer fsync call on Linux than is currently possible.
-- Greg Smith 2ndQuadrant US g...@2ndquadrant.com Baltimore, MD PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.us -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
