DingoDB
A distributed multi-modal vector database that supports vector queries and upserts through MySQL-compatible unified SQL over both structured and unstructured data.
DingoDB is a distributed database that integrates relational semantics and vector semantics into one platform, treating tables and vectors as first-class data models accessible through SQL, an SDK, or an API. It targets high-concurrency, low-latency workloads with horizontal scalability and elastic scaling.
It provides built-in high availability without deploying separate external components, automatic elastic data sharding with dynamic splitting and merging, hybrid scalar-and-vector retrieval with distributed transaction support, real-time background index optimization, and tiered cold-hot storage with disk-based vector search for datasets larger than memory.
It is written in Java and released under the Apache-2.0 license.