2010/12/14 Tom Lane <tgl@sss.pgh.pa.us>:
> Pavel Stehule <pavel.stehule@gmail.com> writes:
>>> On Mon, Dec 13, 2010 at 9:16 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>>>> and (b) how do you identify which type OID
>>>> is really hstore? ("The one named hstore" is the wrong answer.)
COM architecture uses a uuid, but Microsoft leaves this idea.
can we identify installed extension? not now. Then if there is hstore
extension, then type hstore should be correct.
Has a extension some descriptor? like org/postgresql/contrib/hstore ??
Regards
Pavel
>
>> we can search a OID function descriptor. If you know a name and
>> parameter's type, then isn't a problem detect function. It can be
>> based on FuncnameGetCandidates.
>
> You haven't noticed the circularity in that argument?
>
sorry - I didn't understand well.
> regards, tom lane
>