Richard Guo <guofenglinux@gmail.com> writes:
> Hi All,
>
> Eager aggregation is a query optimization technique that partially
> pushes a group-by past a join, and finalizes it once all the relations
> are joined. Eager aggregation reduces the number of input rows to the
> join and thus may result in a better overall plan. This technique is
> thoroughly described in the 'Eager Aggregation and Lazy Aggregation'
> paper [1].
This is a really helpful and not easy task, even I am not sure when I
can spend time to study this, I want to say "Thanks for working on
this!" first and hope we can really progress on this topic. Good luck!
--
Best Regards
Andy Fan