Re: Duplicate Key Violates Unique Contraint whenUpdating a table

On sun, 2007-06-24 at 17:58 +0800, carter ck wrote:
> >From: Ragnar <gnari(at)hive(dot)is>
> >On sun, 2007-06-24 at 16:55 +0800, carter ck wrote:
> > > I am experiencing thgis problem since this morning. I seldom heard about
> > > unique key constraint violation to happen when updating a table.
> > >
> > > It happens to 1 or few records at early stage, but then to all.
> > >
> > > My updating command is as following:
> > >
> > > update mytable set my_status='Y' where myid='ABC123567778';
> > >
> > > Can anyone help? All helps and solutions are appreciated.
> >
> >sounds like you have a UNIQUE constraint involving the column
> >"my_status".
> >
> >did you recently create a new index on this table?
> >
> >what does psql say to:
> >\d mytable
> >

>
> No. The only unique key is the myid, which is also the primary key. I have
> extracted the records out from this database and dump all to a new database.
> Everything is fine. But, this is the second time I have encountered this
> problem.

do you still have the old database around?
if you do, does a
REINDEX mytable;
make your problem go away?

gnari