Etsuro Fujita ffab494a4d 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		2019-04-02 19:20:30 +09:00
..
postgres_fdw.out	postgres_fdw: Perform the (ORDERED, NULL) upperrel operations remotely.	2019-04-02 19:20:30 +09:00