Re: List of error messages

Hi Jan,

> Gisle Dankel wrote:
> >
> > Hi,
> > I couldn't find any explanations of error messages in the docs.
> >
> > I get this error message:
> > ERROR:  triggered data change violation on relation "22"
> >
> > after doing
> >
> > DELETE FROM "22" WHERE id = 36;
> >
> > There's no foreign keys referring to this table, nor any triggers that I
> > have explicitly defined.
> > This occurs inside a transaction. When I tried it outside the transaction
> > it worked fine!
> >
> > Anyone got any idea of what is going on?
> > Do you need more information?
>
>     Maybe  this  table  is  the  referring  one  in a foreign key
>     relationship?
>
>     Triggers/foreign keys are the only things that can cause  the
>     above  error  message. It is a requirement of the SQL99 specs
>     that one and the  same  row,  that  is  part  of  referential
>     integrity  constraints  or  triggers, cannot be touched twice
>     during a transaction.
>
>     So if you did (in the same transaction)
>
>         UPDATE "22" SET "22 A)" = 2.2 WHERE id = 36;
>
>     then the above DELETE might be forbidden as of the specs.
>
>

Yes, that's it ! The element was inserted in the same transaction.
I'll have to remove the foreign key constraints.

Cheers,
Gisle