Qdrant does this as well, with 100% accuracy. But it's not on small categories, but rather on small segments. You could put different categories in different s

Qdrant does this as well, with 100% accuracy. But it's not on small categories, but rather on small segments. You could put different categories in different shards though, resulting in the same effect. You can also specify exact=true to do the same on any size, but this can get rather slow when your collection grows. Disclaimer: I'm part of Qdrant.