Function MakeDropNullFilter

cpp/src/arrow/compute/kernels/vector_selection.cc:73–77

// DropNull Implementation

std::shared_ptr<arrow::BooleanArray> MakeDropNullFilter(const Array& values) {
  auto& bitmap_buffer = values.null_bitmap();
  return std::make_shared<BooleanArray>(values.length(), bitmap_buffer, nullptr, 0,
                                        values.offset());
}

Result<Datum> DropNullArray(const std::shared_ptr<Array>& values, ExecContext* ctx) {
  if (values->null_count() == 0) {