Function FunctionCall1Coll

src/backend/utils/fmgr/fmgr.c:1129–1147

}

Datum
FunctionCall1Coll(FmgrInfo *flinfo, Oid collation, Datum arg1)
{
	LOCAL_FCINFO(fcinfo, 1);
	Datum		result;

	InitFunctionCallInfoData(*fcinfo, flinfo, 1, collation, NULL, NULL);

	fcinfo->args[0].value = arg1;
	fcinfo->args[0].isnull = false;

	result = FunctionCallInvoke(fcinfo);

	/* Check for null result, since caller is clearly not expecting one */
	if (fcinfo->isnull)
		elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

	return result;
}

Datum
FunctionCall2Coll(FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2)