Bruce Momjian wrote: > On Tue, Mar 21, 2017 at 04:43:58PM -0300, Alvaro Herrera wrote: > > Bruce Momjian wrote: > > > > > I don't think it makes sense to try and save bits and add complexity > > > when we have no idea if we will ever use them, > > > > If we find ourselves in dire need of additional bits, there is a known > > mechanism to get back 2 bits from old-style VACUUM FULL. I assume that > > the reason nobody has bothered to write the code for that is that > > there's no *that* much interest. > > We have no way of tracking if users still have pages that used the bits > via pg_upgrade before they were removed.
Yes, that's exactly the code that needs to be written. -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers