[Bug]: IndexParams overridden as list

[sapphire008]

Is there an existing issue for this?

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Describe the bug

from pymilvus.milvus_client.index import IndexParams

IndexParams(field_name="embedding")

throws the following error:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/miniconda3/envs/people_app_scene_embedding_pipeline/lib/python3.12/site-packages/pymilvus/milvus_client/index.py", line 86, in __init__
    super().__init__(*args, **kwargs)
TypeError: list() takes no keyword arguments

Expected Behavior

Expecting this constructs IndexParams correctly as before (2.5.6), but throwing the above error in the latest version.

Steps/Code To Reproduce behavior

from pymilvus.milvus_client.index import IndexParams
IndexParams(field_name="embedding")

Environment details

- Hardware/Softward conditions (OS, CPU, GPU, Memory): OSX python 3.12.9
- Method of installation (Docker, or from source): pip
- Milvus version (v0.3.1, or v0.4.0): 2.6.2
- Milvus configuration (Settings you made in `server_config.yaml`):

Anything else?

No response

[XuanYang-cn]

@sapphire008 Yeah, the original design is a totally mess. IndexParams is just a list of IndexParam, it's really confusing to init it with context that make no sense. We refactor this class to keep the data class consist, simple, and more intuitive. Additional functions(your code to init an empty IndexParam with just field_name) are kept in MilvusClient.prepare_index_params()

If you would like a similar usage, Please use MilvusClient.prepare_index_params(field_name="embedding"), this API doesn't change at all.

>>> from pymilvus import MilvusClient
>>> MilvusClient.prepare_index_params(field_name="vec")
[{'field_name': 'vec', 'index_type': '', 'index_name': ''}]