>>>>> "Tomas" == Tomas Vondra <t...@fuzzy.cz> writes:
Tomas> If we can get rid of the excessive ChainAggregate, that's Tomas> certainly enough for now. I found an algorithm that should provably give the minimal number of sorts (I was afraid that problem would turn out to be NP-hard, but not so - it's solvable in P by reducing it to a problem of maximal matching in bipartite graphs). Updated patch should be forthcoming in a day or two. -- Andrew (irc:RhodiumToad) -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
