chidlResIter); if (!hasInput && groupingExpressions.isEmpty()) { UnsafeRow singleRowResult = aggregationIterator.outputForEmptyGroupingKeyWithoutInput(); return Iterators.singletonIterator(singleRowResult); } else {
chidlResIter); if (!hasInput && groupingExpressions.isEmpty()) { UnsafeRow singleRowResult = aggregationIterator.outputForEmptyGroupingKeyWithoutInput(); return Iterators.singletonIterator(singleRowResult); } else {