Method NewConcatenatingIterator

src/leveldb/db/version_set.cc:223–228

}

Iterator* Version::NewConcatenatingIterator(const ReadOptions& options,
                                            int level) const {
  return NewTwoLevelIterator(
      new LevelFileNumIterator(vset_->icmp_, &files_[level]), &GetFileIterator,
      vset_->table_cache_, options);
}

void Version::AddIterators(const ReadOptions& options,
                           std::vector<Iterator*>* iters) {