postgresql/contrib/file_fdw
Robert Haas 2f17844104 Allow UPDATE to move rows between partitions.
When an UPDATE causes a row to no longer match the partition
constraint, try to move it to a different partition where it does
match the partition constraint.  In essence, the UPDATE is split into
a DELETE from the old partition and an INSERT into the new one.  This
can lead to surprising behavior in concurrency scenarios because
EvalPlanQual rechecks won't work as they normally did; the known
problems are documented.  (There is a pending patch to improve the
situation further, but it needs more review.)

Amit Khandekar, reviewed and tested by Amit Langote, David Rowley,
Rajkumar Raghuwanshi, Dilip Kumar, Amul Sul, Thomas Munro, Álvaro
Herrera, Amit Kapila, and me.  A few final revisions by me.

Discussion: http://postgr.es/m/CAJ3gD9do9o2ccQ7j7+tSgiE1REY65XRiMb=yJO3u3QhyP8EEPQ@mail.gmail.com
2018-01-19 15:33:06 -05:00
..
data pg_prewarm: Add automatic prewarm feature. 2017-08-21 14:17:39 -04:00
expected
input Allow UPDATE to move rows between partitions. 2018-01-19 15:33:06 -05:00
output Allow UPDATE to move rows between partitions. 2018-01-19 15:33:06 -05:00
sql
.gitignore
file_fdw--1.0.sql
file_fdw.c Update copyright for 2018 2018-01-02 23:30:12 -05:00
file_fdw.control
Makefile