A good example is TiDB's implementation of vector indexes. TIDB is also a MySQL-compatible distributed transactional database, which separates the storage engin

A good example is TiDB's implementation of vector indexes. TIDB is also a MySQL-compatible distributed transactional database, which separates the storage engine for vector indexes from the transactional store through an extra replica in its OLAP engine (via TiFlash), avoiding resource contention.