On Sun, 10 Jan 2010 19:45:32 +0100, Robert Haas <robertmh...@gmail.com>
wrote:
2010/1/10 Pierre Frédéric Caillaud <li...@peufeu.com>:
If you transfer (delete from staging, insert into archive) in one
transaction , then it will be always visible in exactly one of them,
and exatly once in a view over both staging and archive(s).
Does the latest version implement this :
INSERT INTO archive (...) DELETE FROM staging WHERE ... RETURNING ...
No. There are no plans to support that, though there are proposals to
support:
WITH x AS (DELETE FROM staging WHERE ... RETURNING ...) INSERT INTO
archive (...) SELECT ... FROM x
I'm not sure how much that will help though since, in the designs so
far discused, the tuples won't be pipelined.
...Robert
Yeah, but it's a lot more user-friendly than SELECT FOR UPDATE, INSERT
SELECT, DELETE...
--
Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance
