I wrote:
>> Probably something like this:
>>>    Foreign Processing
>>>      Remote Operations: ...
>>> In the Remote Operations line, the FDW/extension could print any info
>>> about remote operations, eg, "Scan/Join + Aggregate".
> "Foreign" implies this node is processed by FDW, but "Procesing" gives us
>> no extra information; seems to me redundant.
> I intentionally chose that word and thought we could leave detailed
> descriptions about remote operations to the FDW/extension; a broader word
> like "Processing" seems to work well because we allow various kinds of
> operations to the remote side, in addition to scans/joins, to be performed
> in that one Foreign Scan node indicated by "Foreign Processing", such as
> aggregation, window functions, distinct, order by, row locking, table
> modification, or combinations of them.
> "Scan" is a better word than "Processing". From plan's perspective it's
ultimately a Scan (on the data produced by the foreign server) and not
Best Wishes,
Ashutosh Bapat
EnterpriseDB Corporation
The Postgres Database Company

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