MyScaleDB
the six Ws · specification
Analytics and AI teams wanting vector search combined with familiar SQL and structured data queries.
MyScaleDB is an open source vector database built on ClickHouse that lets developers run vector, full text, and filtered search using standard SQL.
Self hosted by deploying the MyScaleDB server, or used via the managed MyScale cloud service.
Released around 2023 and actively maintained with ongoing commits as of 2026.
Lets teams reuse SQL and ClickHouse's columnar performance for large scale vector search instead of adopting a separate specialized database.
Built on top of ClickHouse's storage engine and requires embeddings generated by an external model.
Open source software under Apache-2.0; can be self hosted, or used through the paid MyScale managed cloud where data is hosted by MyScale.