On fre, 2012-03-30 at 22:59 -0700, Hitoshi Harada wrote: > I don't know exactly how PL/Proxy or pgpool accomplish the multi-phase > aggregate,
They don't. > but in theory the proposal above is state-merge function, > so it doesn't apply to general aggregate results that passed through > the final function. Of course some functions that don't have final > functions are ok to call state-merge function on the results. You're right, it's not quite the same thing. But perhaps it could be kept in mind if someone wants to develop things in this area. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers