2010/8/25 Simon Riggs <si...@2ndquadrant.com>: > On Wed, 2010-08-25 at 16:14 +0200, Nicolas Barbier wrote: >> 2010/8/25 Simon Riggs <si...@2ndquadrant.com>: >> >> > "referenced" meaning "by an RI constraint", which only ever refers to >> > PKs in other tables. >> >> FK constraints can also point to non-PK UNIQUE columns. > > You're exactly correct and I now understand Markus' comment. Do you > think that exact meaning prevents my proposal from being useful?
Not at all, because I guess that updates to non-UNIQUE columns are way more common that updates to UNIQUE columns. Nicolas -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
