Adding support for binary embeddings

[bhugueney]

Thank you for this most useful extension ! It seems that binary embeddings allow dramatic increase in performance for a small accuracy cost ( https://huggingface.co/blog/embedding-quantization#quantization-experiments ). Various other vector DB allow to use them :

• Faiss Yes

• USearch Yes

• Vespa AI Yes

• Milvus Yes

• Qdrant Through Binary Quantization

• Weaviate Through Binary Quantization

It would be great if DuckDB vss could also support them efficiently.

EDIT pg_vecor also has it : https://github.com/pgvector/pgvector?tab=readme-ov-file#binary-vectors Best Regards

[Maxxen]

Hello!

Yes, support for arrays of other types is planned, although binary vectors in particular might be slightly more complex since DuckDB itself doesn't really have a "bit" type, but it should be doable.