No I don't think that's relevant. They implement their own btree it seems [0]. They don't use a key-value store library. I know it's a bit of a fine line. But

No I don't think that's relevant. They implement their own btree it seems [0]. They don't use a key-value store library. I know it's a bit of a fine line. But I'm talking about standalone libraries people embed across different applications/databases. That's what RocksDB/LevelDB/Pebble are. [0] https://github.com/rethinkdb/rethinkdb/tree/v2.4.x/src/btree https://github.com/rethinkdb/rethinkdb/tree/v2.4.x/src/btree