Bring RocksDB to PostgreSQL as an extension. It is the first foreign data wrapper (FDW) that introduces LSM-tree into PostgreSQL. The underneath storage engine can be RocksDB. The FDW also serves for VidarDB engine, a versatile storage engine for various workloads. See the link for more info about VidarDB engine.
@jsc0218 Now we have introduced the message queue to support multiple producer and one consumer model, and
they communicate asynchronously when send request to message queue.
currently, we us sync model leading to waiting of producer side