postgres

Author	SHA1	Message	Date
Tom Lane	21734d2fb8	Support writable foreign tables. This patch adds the core-system infrastructure needed to support updates on foreign tables, and extends contrib/postgres_fdw to allow updates against remote Postgres servers. There's still a great deal of room for improvement in optimization of remote updates, but at least there's basic functionality there now. KaiGai Kohei, reviewed by Alexander Korotkov and Laurenz Albe, and rather heavily revised by Tom Lane.	13 years ago
Tom Lane	09a7cd409e	Rename postgres_fdw's use_remote_explain option to use_remote_estimate. The new name was originally my typo, but per discussion it seems like a better name anyway. So make the code match the docs, not vice versa.	13 years ago
Tom Lane	6da378dbc9	Fix whole-row references in postgres_fdw. The optimization to not retrieve unnecessary columns wasn't smart enough. Noted by Thom Brown.	13 years ago
Tom Lane	d0d75c4022	Add postgres_fdw contrib module. There's still a lot of room for improvement, but it basically works, and we need this to be present before we can do anything much with the writable-foreign-tables patch. So let's commit it and get on with testing. Shigeru Hanada, reviewed by KaiGai Kohei and Tom Lane	13 years ago