On Thu, 2013-02-28 at 14:38 +0000, Thom Brown wrote:
> Recursive views aren't updatable, but the error message may be
> considered a bit confusing to those who don't realise that recursive
> views are converted to recursive CTEs.
>
> postgres=# UPDATE vpeople SET last_person = last_person || ' test';
> ERROR: cannot update view "vpeople"
> DETAIL: Views containing WITH are not automatically updatable.
> HINT: To make the view updatable, provide an unconditional ON UPDATE
> DO INSTEAD rule or an INSTEAD OF UPDATE trigger.
>
> Could we perhaps modify the error message in such scenarios to
> something like: "Views containing WITH, including recursive views, are
> not automatically updatable."
If a user saw that error message and did a \d on the view, it would show
the expanded form with WITH, so I think the message is fine as it is.
