>> So a relation can't have some pages in Version 9.2, and other pages in >> version 9.3? How will this work for 2TB tables? > > Not very well, but better than Tom's proposal to require upgrading the > entire cluster in a single off-line operation.
Yes, but the result will be that anyone with a 2TB table will *never* convert it to the new format. Which means we can never deprecate that format, because lots of people will still be using it. I continue to assert that all of this sounds like 9.3 work to me. I'm really not keen on pushing through a hack which will make pushing in a long-term solution harder. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers