On 2016/08/02 13:32, Kouhei Kaigai wrote:
I wrote:
>> My concern here is EXPLAIN for foreign joins. I think it's another
>> problem how we handle Foreign Scan plan nodes representing
>> post-scan/join operations in EXPLAIN, so I'd like to leave that for
>> another patch.
> What is the post-scan/join operations? Are you saying EPQ recheck and
> alternative local join plan?
No. I mean e.g., aggregation, window functions, sorting, or table
modification. In other words, Foreign Scan plan nodes created from
ForeignPath paths created from GetForeignUpperPaths.
Best regards,
Etsuro Fujita