Re: error status 139

Hi Tom,

Thanks for getting back to me. I did discover both of these things in my debuggng efforts. The PG_RETURN_NULL() macro doesn't accomodate a Point type very easily (that I can see), but I think I'll just raise an error for a situation where a NULL would be returned.

Thanks again,

Laurette
On Tue, 24 Jul 2001, Tom Lane wrote:

> Laurette Cisneros <laurette(at)nextbus(dot)com> writes:
> > Here's the stack track from the core file:
> > #1 0x4013c445 in fprintf (stream=0x0,
> > format=0x4001966f "nbpointdist\n") at fprintf.c:32
>
> Sure looks like you're trying to write on a non-open file (stream=0
> suggests you're passing a NULL file pointer to fprintf).
>
> As for your later message, no you can't return an SQL NULL by
> returning a NULL pointer. The only way to return NULLs cleanly
> is to use the v1 function call interface, within which the macro
> PG_RETURN_NULL() works. See the documentation about writing C
> functions.
>
> regards, tom lane
>

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Laurette Cisneros
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NextBus Information Systems, Inc.
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