图数据库综述 RENZO ANGLES and CLAUDIO GUTIERREZ. Survey of graph database models[J]. ACM Computing Surveys, Vol. 40, No. 1, Article 1, Publication date: February 2008. about rocksdb’s BloomFilter: https://github.com/facebook/rocksdb/wiki/RocksDB-Bloom-Filter whole_key_filtering –> false的副作用 check usage：std::enable_if_t . std::decay_t check usage：folly::Future

0. rvalue references summary (50%) impl of std::forward, std::move 0.1.1 acquire & release semantics https://en.cppreference.com/w/cpp/atomic/memory_order https://www.modernescpp.com/index.php/acquire-release-semantic