On 22nd of August, Alvaro Herrera committed patch:
Implement ALTER TABLE .. SET LOGGED / UNLOGGED
This enables changing permanent (logged) tables to unlogged and
(Docs for ALTER TABLE / SET TABLESPACE got shuffled in an order that
hopefully makes more sense than the original.)
Author: Fabrízio de Royes Mello
Reviewed by: Christoph Berg, Andres Freund, Thom Brown
Some tweaking by Álvaro Herrera
Continue reading Waiting for 9.5 – Implement ALTER TABLE .. SET LOGGED / UNLOGGED
On 29th of December, Robert Haas committed interesting patch, which does:
Support unlogged tables.
The contents of an unlogged table aren't WAL-logged; thus, they are not
available on standby servers and are truncated whenever the database
system enters recovery. Indexes on unlogged tables are also unlogged.
Unlogged GiST indexes are not currently supported.
(edited commit message, due to this mail.
Continue reading Waiting for 9.1 – Unlogged tables