How filtering is done.?

[Adarsh999bh]

I have a doubt..! When search request is sent with filter, does qdrant filters the point first and then do search or vice-versa.?
Also, I want to know if qdrant supports scoped search.?

[generall]

Neither. Filtering happens during the vector index traversal

[Adarsh999bh]

What about scoped search.?
Scoped search definition below
Can I search in only specific point id's which ill pass in search request.?

[generall]

Can I search in only specific point id's which ill pass in search request.?

yes. https://qdrant.tech/documentation/concepts/filtering/#has-id

[timvisee]

We also have an article available on our approach here: https://qdrant.tech/articles/filtrable-hnsw/

[Adarsh999bh]

Thank you for sharing.!
I have one more question,
How and which payload key is selected for indexing.?

[generall]

How and which payload key is selected for indexing.?

All indexed payload fields are used to augment HNSW index. You select which payload field to index with API

[Adarsh999bh]

So if my payload contains fields rank: Int and name: string by default it will not build payload index for both.?
I have to call an api with key to build index.? Either rank or name.? Am I correct.?

[timvisee]

So if my payload contains fields rank: Int and name: string by default it will not build payload index for both.? I have to call an api with key to build index.? Either rank or name.? Am I correct.?

Yes.

You should probably create a payload index (of the correct type) on both fields. Find more on this here: https://qdrant.tech/documentation/concepts/indexing/#payload-index