[niel]

Thanks for writing this up!

> Filtering with vector search may be harder than you expect.

I've only ever used it for a small proof of concept, but Qdrant is great at categorical filtering with HNSW.

https://qdrant.tech/articles/filtrable-hnsw/

[zxt_tzx]

Thanks for sharing! Do you have more details to share, e.g. did you just have a vector db, or did you have a main db as well?

In my research, Qdrant was also the top contender and I even created an account with them, but the need to sync two dbs put me off