Florian Pflug <f...@phlo.org> writes: > AFAIR, the performance hit we'd take by making the vacuum cutoff point > (i.e. GetOldestXmin()) global instead of database-local has been repeatedly > used in the past as an against against cross-database queries. I have to > admit that I currently cannot seem to find an entry in the archives to > back that up, though.
To my mind, the main problem with cross-database queries is that none of the backend is set up to deal with more than one set of system catalogs. regards, tom lane -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers