Re: Get constrrelid for fk constraints that lost it

On Mon, 30 Sep 2002, Tom Lane wrote:

> Stephan Szabo <sszabo@megazone23.bigpanda.com> writes:
> > ... If the table doesn't exist or there
> > aren't enough args to intuit a table name, it currently
> > elog errors.  Is that reasonable behavior, or should
> > it be taking the constraint and letting it fail at
> > runtime?
>
> I was inclined to think it should take the constraint and let the
> failure occur at runtime.  A NOTICE would be okay but not an ERROR.

That's easy enough to do (changing a a false to true and an ERROR
to NOTICE I believe)

> (We can tweak the RI triggers to make the runtime failure message be
> more helpful than "Relation 0 not found".)  ISTM the point of having

Are we mostly concerned about the case where it's 0 or all cases
where the constrrelid relation doesn't open?

> this hack is to allow old dump files to be loaded, and an ERROR would
> get in the way of that.

Yeah, I'd been thinking that they weren't in a transaction so
an error would just not make the trigger, but that's not a safe
assumption.