Re: set-level update fails with unique constraint violation

Hi,
This seems to work..
UPDATE x set i=i+1
from (select i as m from x order by m desc) y where x.i = y.m
Jayadevan

From: neuhauser+pgsql-general#postgresql(dot)org(at)sigpipe(dot)cz
To: pgsql-general(at)postgresql(dot)org
Date: 12/31/2009 09:15 PM
Subject: [GENERAL] set-level update fails with unique constraint
violation
Sent by: pgsql-general-owner(at)postgresql(dot)org

Hello,

this fails with "duplicate key value":

CREATE TABLE x (
i INT NOT NULL UNIQUE
);
INSERT INTO x (i) VALUES (1), (2), (3);
UPDATE x SET i = i + 1;

are there any plans to make this work?

--
Roman Neuhauser

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