On 2015-07-15 16:52:49 +0200, Andres Freund wrote: > Why do we need to create that copy? We can just use the relfilenode in > all backends by having the backendid in the filename? Yes, there's a > some amount of additional code needed, but it's not that much? I > actually think it might end up being less additional code than having a > copy, because with the copy you'll have two different oids for global > entry and the local copy.
Hm, yes. Brainfart. Transaction table rewrites/truncations need to change the relfilenode. To fix We could add a backend local mapping table from global temp table id to the backend local relfilenode. The code to lookup the relfilenode is already mostly isolated. -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers