Nikolay Samokhvalov wrote:
On Nov 12, 2007 12:59 AM, Tom Lane <[EMAIL PROTECTED]> wrote:
I'm not clear on what you're proposing. There is no such thing as an
opclass with no operators (or at least, not a useful one), so this seems
mutually contradictory.
regards, tom lane
You're right, that's my mistake, sorry. So, having casting rules seems
to be the only option..
We can already cast as text[], and so we can do this:
andrew=# select
xpath('//foo/text()','<a><foo>1</foo><foo>2</foo></a>')::text[]::int[];
xpath
-------
{1,2}
(1 row)
So why do we desperately need anything extra at all?
cheers
andrew
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