Re: How can I retrieve attribute category with attribute Oid in Cfunction?

hey thank you!!

could you provide some more detail information??

What function should I use to get FormData_pg_type structure??

thanks a lot

------------------ Original message ------------------
From: "Laurenz Albe";
Sendtime: Monday, May 14, 2018 4:11 PM
To: "a"<372660931(at)qq(dot)com>; "pgsql-general";
Subject: Re: How can I retrieve attribute category with attribute Oid in Cfunction?

a wrote:
> Hi I am writing something that would need to identify the attribute category inside a C function,
> now I may need a way of fast access it, but the information is not stored in FormData_pg_attribute structure.

Are you talking about pg_type.typcategory?

That is accessible from FormData_pg_type.
You'd have to look up atttypid in the TYPEOID cache.

Yours,
Laurenz Albe
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