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Etsuro Fujita d50d172e51 postgres_fdw: Perform the (FINAL, 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 (FINAL, NULL) upperrel, which is responsible for doing LockRows, LIMIT, and/or ModifyTable. This provides the ability for postgres_fdw to handle SELECT commands so that it 1) skips the LockRows step (if any) (note that this is safe since it performs early locking) and 2) pushes down the LIMIT and/or OFFSET restrictions (if any) to the remote side. This doesn't handle the INSERT/UPDATE/DELETE cases. Author: Etsuro Fujita Reviewed-By: Antonin Houska and Jeff Janes Discussion: https://postgr.es/m/87pnz1aby9.fsf@news-spur.riddles.org.uk		7 years ago
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expected	postgres_fdw: Perform the (FINAL, NULL) upperrel operations remotely.	7 years ago
sql	postgres_fdw: Perform the (FINAL, NULL) upperrel operations remotely.	7 years ago
.gitignore	Add postgres_fdw contrib module.	13 years ago
Makefile	Prevent accidental linking of system-supplied copies of libpq.so etc.	8 years ago
connection.c	Update copyright for 2019	7 years ago
deparse.c	postgres_fdw: Perform the (FINAL, NULL) upperrel operations remotely.	7 years ago
option.c	Update copyright for 2019	7 years ago
postgres_fdw--1.0.sql	Add postgres_fdw contrib module.	13 years ago
postgres_fdw.c	postgres_fdw: Perform the (FINAL, NULL) upperrel operations remotely.	7 years ago
postgres_fdw.control	Add postgres_fdw contrib module.	13 years ago
postgres_fdw.h	postgres_fdw: Perform the (FINAL, NULL) upperrel operations remotely.	7 years ago
shippable.c	Update copyright for 2019	7 years ago