Re: interperting type oid in C code
| От | Ken Been |
|---|---|
| Тема | Re: interperting type oid in C code |
| Дата | |
| Msg-id | CANe84rxO=ebDvnB6CP00wBRNKqfaz72dHfRiAZyJBaW1Tm_aCQ@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: interperting type oid in C code (Alvaro Herrera <alvherre@2ndquadrant.com>) |
| Ответы |
Re: interperting type oid in C code
|
| Список | pgsql-general |
Those are more complicated, and it's not obvious to me how to use them. I really think that all I need is something as simple as "if (my_oid == INT4OID) {...}". Is there any reason why I shouldn't just do that?
On Mon, Oct 19, 2015 at 7:08 PM, Alvaro Herrera <alvherre@2ndquadrant.com> wrote:
Ken Been wrote:
> Thanks, but I actually wanted to do it from C code. But anyway I think I
> found the answer: use the symbolic constants in catalog/pg_type.h, such as
> INT4OID.
You can probably use
SearchSysCache1(TYPEOID, ObjectIdGetDatum(your_oid))
or perhaps
lookup_type_cache(your_oid).
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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