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@qq.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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