Re: [HACKERS] WIP: Aggregation push-down
От | Antonin Houska |
---|---|
Тема | Re: [HACKERS] WIP: Aggregation push-down |
Дата | |
Msg-id | 7087.1567663858@localhost обсуждение исходный текст |
Ответ на | Re: [HACKERS] WIP: Aggregation push-down (Alvaro Herrera <alvherre@2ndquadrant.com>) |
Ответы |
Re: [HACKERS] WIP: Aggregation push-down
Re: WIP: Aggregation push-down |
Список | pgsql-hackers |
Alvaro Herrera <alvherre@2ndquadrant.com> wrote: > This stuff seems very useful. How come it sits unreviewed for so long? I think the review is hard for people who are not interested in the planner very much. And as for further development, there are a few design decisions that can hardly be resolved without Tom Lane's comments. Right now I recall two problems: 1) is the way I currently store RelOptInfo for the grouped relations correct?, 2) how should we handle types for which logical equality does not imply physical (byte-wise) equality? Fortunately it seems now that I'm not the only one who cares about 2), so this problem might be resolved soon: https://www.postgresql.org/message-id/CAH2-Wzn3Ee49Gmxb7V1VJ3-AC8fWn-Fr8pfWQebHe8rYRxt5OQ%40mail.gmail.com But 1) still remains. -- Antonin Houska Web: https://www.cybertec-postgresql.com
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