On Tue, Sep 19, 2017 at 6:28 AM, Tomas Vondra <tomas.von...@2ndquadrant.com> wrote: > The patch is fairly simple, and did not try to push the bloom filters to > scan nodes or anything like that. It might be a meaningful first step, > though, particularly for selective joins (where only small number of > rows from the outer relation has a match in the hash table).
I believe that parallelism makes the use of Bloom filter a lot more compelling, too. Obviously this is something that wasn't taken into consideration in 2015. -- Peter Geoghegan -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
