2007/8/11, Gregory Stark <stark@enterprisedb.com>:
>
> "Pavel Stehule" <pavel.stehule@gmail.com> writes:
>
> > checked_by INT REFERENCES users (id) ON UPDATE CASCADE ON DELETE SET NULL,
>
> > CONTEXT: SQL statement "UPDATE ONLY "public"."tasks" SET "worker" =
> > NULL WHERE $1 OPERATOR(pg_catalog.=) "worker""
>
> This says you mistyped the constraint above to refer to tasks(worker) instead
> of users(id). Did you?
>
> --
Im sorry. I don't understand. It's look like wrong evaluation order:
1. delete from users
2. update tab set col = NULL
insead
1. update ... -- remove references
2. delete from users ...
Pavel Stehule
> Gregory Stark
> EnterpriseDB http://www.enterprisedb.com
>
>