| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Ben Ali Rachid <souliman239(at)yahoo(dot)fr> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Function C and INOUT parameters |
| Date: | 2009-03-24 18:11:07 |
| Message-ID: | 17016.1237918267@sss.pgh.pa.us |
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| Lists: | pgsql-hackers pgsql-www |
Ben Ali Rachid <souliman239(at)yahoo(dot)fr> writes:
> I posted my problem (on pgsql-interfaces list) about the INOUT parameters on PostgreSQL 8.3.6 (Win32), but without success. I re-post my question here, while hoping to have more success.
You apparently have no understanding at all of how parameters are passed
to and from C-language functions in Postgres :-(. Start here:
http://www.postgresql.org/docs/8.3/static/xfunc-c.html
and note that any situation involving multiple OUT parameters is handled
as returning an anonymous composite type. There are a number of
useful examples in the contrib modules.
regards, tom lane
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