Tag: postgres_fdw

Waiting for PostgreSQL 10 – postgres_fdw: Push down aggregates to remote servers.

On 21st of October, Robert Haas committed patch:

postgres_fdw: Push down aggregates to remote servers.
 
Now that the upper planner uses paths, and now that we have proper hooks
to inject paths into the upper planning process, it's possible for
foreign data wrappers to arrange to push aggregates to the remote side
instead of fetching all of the rows and aggregating them locally.  This
figures to be a massive win for performance, so teach postgres_fdw to
do it.
 
Jeevan Chalke and Ashutosh Bapat.  Reviewed by Ashutosh Bapat with
additional testing by Prabhat Sahu.  Various mostly cosmetic changes
by me.

Continue reading Waiting for PostgreSQL 10 – postgres_fdw: Push down aggregates to remote servers.

Waiting for 9.6 – Directly modify foreign tables.

On 18th of March, Robert Haas committed patch:

Directly modify foreign tables.
 
postgres_fdw can now sent an UPDATE or DELETE statement directly to
the foreign server in simple cases, rather than sending a SELECT FOR
UPDATE statement and then updating or deleting rows one-by-one.
 
Etsuro Fujita, reviewed by Rushabh Lathia, Shigeru Hanada, Kyotaro
Horiguchi, Albe Laurenz, Thom Brown, and me.

Continue reading Waiting for 9.6 – Directly modify foreign tables.