On Fri, Jun 3, 2011 at 11:43 AM, Jim Nasby <j...@nasby.net> wrote: > On Jun 3, 2011, at 10:11 AM, Alexey Klyukin wrote: >>> Is your interest in cheap varchar(N)->varchar(N+M) conversions >>> specifically, or >>> in some broader application of this facility? >> >> Exactly varchar conversions. > > Why limit it to varchar? Shouldn't we be able to do this for any varlena? The > only challenge I see is numeric; we'd need to ensure that both size and > precision are not decreasing.
More than that: you should also be able to make it work for things like xml -> text. Indeed, I believe Noah has plans to do just that. Which, quite frankly, will be awesome. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
