Summary
As title suggests, index strings like "IDMap,PQx4fs,RFlat" produces an index that cannot add vectors. This is because the refinement index is the outermost wrapper, which doesn't support add_with_ids. However, IDMap is an internal wrapper, which doesn't support the regular add. The resulting index is unable to add vectors by either means.
This should be easy to resolve by just moving the IDMap resolution in the index factory to the very top, making it the outermost wrapper all of the time.
Platform
OS:
Faiss version: most recent
Installed from: irrelevant
Faiss compilation options: irrelevant
Running on: irrelevant
Interface:
Reproduction instructions
Get index with "IDMap,PQx4fs,RFlat" and try to add a vector with add or add_with_ids.
Summary
As title suggests, index strings like "IDMap,PQx4fs,RFlat" produces an index that cannot add vectors. This is because the refinement index is the outermost wrapper, which doesn't support add_with_ids. However, IDMap is an internal wrapper, which doesn't support the regular add. The resulting index is unable to add vectors by either means.
This should be easy to resolve by just moving the IDMap resolution in the index factory to the very top, making it the outermost wrapper all of the time.
Platform
OS:
Faiss version: most recent
Installed from: irrelevant
Faiss compilation options: irrelevant
Running on: irrelevant
Interface:
Reproduction instructions
Get index with "IDMap,PQx4fs,RFlat" and try to add a vector with add or add_with_ids.