[Bug]: Frequent Describe Collection calls in some APIs overwhlming the server

[XuanYang-cn]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

Some APIs in the server calls describe collection for different reasons, we need to find a way to get rid of them if possible.

Describe to retrieve CollectionID

1. compact
2. describe_replica

Must call

1. has_collection

To get PK field's name

1. search_iterator
2. query_iterator
3. get

Already Cached

1. insert
2. upsert

Expected Behavior

Remove some of the describe collection calls

Steps/Code To Reproduce behavior

Environment details

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

Anything else?

No response