On Tue, Jun 6, 2017 at 3:23 PM, David Fetter <da...@fetter.org> wrote: > I'd bet on lack of tuits.
I expect that was part of it. Another thing to consider is that, for numeric aggregates, the transition values don't generally get larger as you aggregate, but for something like string_agg(), they will. It's not clear how much work we'll really save by parallelizing that sort of thing. Maybe it will be great? -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (firstname.lastname@example.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers