Horton

Re: ALTER TABLE ... REPLACE WITH

Robert Haas <robertmhaas@gmail.com>

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From: Robert Haas <robertmhaas@gmail.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Simon Riggs <simon@2ndquadrant.com>, pgsql-hackers@postgresql.org
Date: 2010-12-14T19:07:46Z
Lists: pgsql-hackers 
On Tue, Dec 14, 2010 at 1:54 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> BEGIN;
> TRUNCATE TABLE;
> ... load new data ...
> COMMIT;

Because then you have to take an AccessExclusiveLock on the target
table, of course.

If we had some kind of TRUNCATE CONCURRENTLY, I think that'd address a
large portion of the use case for the proposed feature.

-- 
Robert Haas
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