Summary

I am using IndexFlatIP and I understand that the ID of each vector will be the position at the index it assumes after being added. As a possible solution to use custom ID's, I've found about IndexIDMap, that allows to use a function called add_with_ids. This structure also has its own searching function, that implicitly searches at the original index, which makes me think that the searching can be done directly over the IndexIDMap variable and we will have the same performance.

I would like to know if my understandings are correct and if there is a way to use also custom string ID's.

Interface:

• C++
• Python