Re: PG12 change to DO UPDATE SET column references

James Coleman <jtc331@gmail.com> writes:
> I do wonder if it's plausible (and sufficiently easy) to improve the
> error message here. "column 'foo' of relation 'foo'" makes one thing
> that you've written foo.foo, (in my real-world case the error message
> also cut off the sql past "foo.", and so I couldn't even tell if the
> sql was just malformed). At the very least it'd be nice to have a HINT
> here (perhaps just when the relation and column name match).

> Before I look at where it is, Is such an improvement something we'd be
> interested in?

A HINT if the bogus column name (1) matches the relation name and
(2) is field-qualified seems plausible to me.  Then it's pretty
likely to be a user misunderstanding about whether to write the
relation name.

            regards, tom lane