On Wed, Jul 22, 2015 at 8:24 PM, Kouhei Kaigai <kaigai@ak.jp.nec.com> wrote:
> Indeed, this commit allows ForeignScan to have fdw_scan_tlist, even if
> scanrelid > 0, however, I'm uncertain about its reason/intention.
> Does it a preparation for the upcoming target-list-pushdown??
I guess Tom would have to comment on whether it could be used for that
purpose. I assume that omitting columns could be interesting for some
FDWs, if nothing else.
--
Robert Haas
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