On Sep 2, 2008, at 10:43, David E. Wheeler wrote:
> Looks like regtype displays as an integer. So how about
> pg_regtypeof() and pg_typeof()?
Sorry, make that:
PG_FUNCTION_INFO_V1(pg_regtypeof);
Datum
pg_regtypeof(PG_FUNCTION_ARGS)
{ PG_RETURN_OID(get_fn_expr_argtype(fcinfo->flinfo, 0));
}
PG_FUNCTION_INFO_V1(pg_typeof);
Datum
pg_typeof(PG_FUNCTION_ARGS)
{ Oid typeoid;
typeoid = get_fn_expr_argtype(fcinfo->flinfo, 0); if (typeoid == InvalidOid) { ereport( ERROR,
( errcode(ERRCODE_FEATURE_NOT_SUPPORTED), errmsg("could not determine data type of
argumentto
pg_typeof()") ) ); }
PG_RETURN_DATUM(DirectFunctionCall1(textin,
CStringGetDatum(format_type_be(typeoid))));
}
Best,
David