Hi, On 2018-06-06 15:58:16 +0200, Tomas Vondra wrote: > The other issue is that serialize/deserialize is only a part of a problem - > you also need to know how to do "combine", and not all aggregates can do > that ... (certainly not in universal way).
There are several schemes where only serialize/deserialize are needed, no? There are a number of fairly sensible schemes where there won't be multiple transition values for the same group, no? Greetings, Andres Freund
