On Tue, Feb 21, 2012 at 12:14:03PM -0800, David E. Wheeler wrote: > On Feb 21, 2012, at 12:11 PM, Michael Glaesemann wrote: > > > And hashtext *has* changed across versions, which is why Peter Eisentraut > > published a version-independent hash function library: > > https://github.com/petere/pgvihash > > Yes, Marko wrote one, too: > > https://github.com/markokr/pghashlib > > But as I’m about to build a system that is going to have many billions of > nodes, I could use a variant that returns a bigint. Anyone got a pointer to > something like that? > > Thanks, > > David >
Hi David, The existing hash_any() function can return a 64-bit hash, instead of the current 32-bit hash, by returning the b and c values, instead of the current which just returns the c value, per the comment at the start of the function. It sounded like Peter had already done this in his pg_stat_statements normalization patch, but I could not find it. Regards, Ken -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
