Re: return varchar from C function

From: Martijn van Oosterhout <kleptog(at)svana(dot)org>
To: "scotty(at)linuxtime(dot)it" <scotty(at)linuxtime(dot)it>
Cc: PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: return varchar from C function
Date: 2007-02-18 15:08:55
Message-ID: 20070218150855.GB6828@svana.org
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On Sun, Feb 18, 2007 at 12:56:08PM -0500, scotty(at)linuxtime(dot)it wrote:
> Hi,
> just for fun, I wrote a little postgresql contrib,
> who has a C function called myfun inside it.
> The function myfun returns a value , now I return
> a cstring type value, and it works fine if
> I run from psql shell:

You don't provide the definition you used, but:

> select value from myfun(paramteres);

This isn't the usual way to return things, unless it is a set returning
function. Did you provide the return type at declaration time?

Have a nice day,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> From each according to his ability. To each according to his ability to litigate.

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