[Bug]: [new_indexes] The name for new HNSW SQ/PQ/PRQ indexes are "FAISS_HNSW_**" not "HNSW_**"

[binbinlv]

Is there an existing issue for this?

• I have searched the existing issues

Environment

- Milvus version: master-20241015-f3b6792a
- Deployment mode(standalone or cluster): both
- MQ type(rocksmq, pulsar or kafka):    all 
- SDK version(e.g. pymilvus v2.0.0rc2): 2.5.0rc97
- OS(Ubuntu or CentOS): 
- CPU/Memory: 
- GPU: 
- Others:

Current Behavior

The name for new HNSW SQ/PQ/PRQ indexes are "FAISS_HNSW_" not "HNSW_":

FAISS_HNSW_FLAT
FAISS_HNSW_SQ
FAISS_HNSW_PQ
FAISS_HNSW_PRQ

Expected Behavior

HNSW_FLAT
HNSW_SQ
HNSW_PQ
HNSW_PRQ

Steps To Reproduce

NA

Milvus Log

No response

Anything else?

No response

[alexanderguzhva]

/assign @alexanderguzhva

[alexanderguzhva]

this is temporarily while we finish all checks

[foxspy]

@alexanderguzhva Have you tried building index and loading it with FAISS HNSW? If you change the name, you should take care it can successfully load the index built before

[alexanderguzhva]

@foxspy that was my first question to @liliu-z and @xiaofan-luan

[foxspy]

track: zilliztech/knowhere#921

[liliu-z]

@foxspy that was my first question to @liliu-z and @xiaofan-luan

Yes, we need to be able to load the binary built by the old HNSW. The backward compatibility need to be ensured for a middle version, so we can stop the support from 2.6 or 3.0

[liliu-z]

Also we need to support both HNSW and HNSW_FLAT as the name for this version

[foxspy]

/assign

[binbinlv]

/assign

[binbinlv]

working on verification

[binbinlv]

Verified and fixed, all index names are changed.

milvus: master-20241114-1304b405-amd64
pymilvus: 2.5.0rc119