Do you mean this function? Seems I cannot get much information from it...
/*
* record_out - output routine for pseudo-type RECORD.
*/
Datum
record_out(PG_FUNCTION_ARGS)
{
elog(ERROR, "Cannot display a value of type %s", "RECORD");
PG_RETURN_VOID(); /* keep compiler quiet */
}
On 1/24/06, Tom Lane <tgl@sss.pgh.pa.us > wrote:Richard Huxton <dev@archonet.com > writes:
> Tom Lane wrote:
>> You could do that in C, but none of the available PLs support it.
> How would you define the signature for the function? One parameter of
> type anyelement?
Type RECORD would be a better choice --- ANYELEMENT allows scalar types
which is not what you want here. (You could probably still do it with
a function declared that way, but it'd have to take extra steps to
defend itself against being passed, say, an integer.)
If you're looking for a coding model, stripping down record_out() to
just count nulls should get you there.
regards, tom lane