Re: Update is not atomic - Mailing list pgsql-bugs

From Peter Eisentraut
Subject Re: Update is not atomic
Date
Msg-id Pine.LNX.4.30.0106201758530.725-100000@peter.localdomain
Whole thread Raw
In response to Update is not atomic  (Victor Wagner <vitus@ice.ru>)
Responses Re: Update is not atomic
List pgsql-bugs
Victor Wagner writes:

> create table a (a numeric primary key);
> insert into a values (1);
> insert into a values (2);
> insert into a values (3);
> insert into a values (4);
> update a set a=a+1 where a>2;
> ERROR:  Cannot insert a duplicate key into unique index a_pkey

This is a known problem with unique contraints, but it's not easy to fix
it.

--
Peter Eisentraut   peter_e@gmx.net   http://funkturm.homeip.net/~peter

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