From what I&#x27;ve been reading on the on the development of 9.6 (<a href="https:&#x2F;&#x2F;commitfest.postgresql.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;commitfest.postgresql.org&#x2F;</a>), we may only see parallel seq scan and ordering coming to 9.6. They added the foundation to make more thing parallele but I don&#x27;t think that we can hope to see parallel aggregation coming into 9.6