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| author | Etsuro Fujita <efujita@postgresql.org> | 2019-04-02 19:20:30 +0900 |
|---|---|---|
| committer | Etsuro Fujita <efujita@postgresql.org> | 2019-04-02 19:20:30 +0900 |
| commit | ffab494a4d4676a71e830b2d7285eeeb5f2b53d7 (patch) | |
| tree | af36b3a1c38ba6099c960d272e864cc7e86d0988 /src/backend/access/gist/gistxlog.c | |
| parent | e2d28c0f404713f564dc2250646551c75172f17b (diff) | |
| download | postgresql-ffab494a4d4676a71e830b2d7285eeeb5f2b53d7.tar.gz | |
postgres_fdw: Perform the (ORDERED, NULL) upperrel operations remotely.
The upper-planner pathification allows FDWs to arrange to push down
different types of upper-stage operations to the remote side. This
commit teaches postgres_fdw to do it for the (ORDERED, NULL) upperrel,
which is responsible for evaluating the query's ORDER BY ordering.
Since postgres_fdw is already able to evaluate that ordering remotely
for foreign baserels and foreign joinrels (see commit aa09cd242f et al.),
this adds support for that for foreign grouping relations.
Author: Etsuro Fujita
Reviewed-By: Antonin Houska and Jeff Janes
Discussion: https://postgr.es/m/87pnz1aby9.fsf@news-spur.riddles.org.uk
Diffstat (limited to 'src/backend/access/gist/gistxlog.c')
0 files changed, 0 insertions, 0 deletions