On Tue, Dec 20, 2016 at 3:11 AM, Andres Freund <andres@anarazel.de> wrote:
> I think a more efficient variant would make the function signature look
> something like:
>
> Datum /* directly returned argument */
> pgfunc(
> /* extra information about function call */
> FunctionCallInfo *fcinfo,
> /* bitmap of NULL arguments */
> uint64_t nulls,
> /* first argument */
> Datum arg0,
> /* second argument */
> Datum arg1,
> /* returned NULL */
> bool *isnull
> );
Yeah, that's kind of nice. I like the uint64 for nulls, although
FUNC_MAX_ARGS > 64 by default and certainly can be configured that
way. It wouldn't be a problem for any common cases, of course.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
