Vector Search Limitations

This document describes the known limitations of TiDB Vector Search. We are continuously working to enhance your experience by adding more features.

• TiDB Vector Search is only available for TiDB Cloud Serverless clusters. It is not available for TiDB Cloud Dedicated or TiDB Self-Managed.

• Each vector supports up to 16,000 dimensions.

• Vector data supports only single-precision floating-point numbers (Float32).

• Only cosine distance and L2 distance are supported when you create a vector search index.

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