Function SendFunctionCall

src/backend/utils/fmgr/fmgr.c:1635–1639

* Call a previously-looked-up datatype binary-output function. * * Do not call this on NULL datums. * * This is little more than window dressing for FunctionCall1, but it does * guarantee a non-toasted result, which strictly speaking the underlying * function doesn't. */

 * function doesn't.
 */
bytea *
SendFunctionCall(FmgrInfo *flinfo, Datum val)
{
	return DatumGetByteaP(FunctionCall1(flinfo, val));
}

/*
 * As above, for I/O functions identified by OID.  These are only to be used