[Bug]: Partition Key doesn't appear to function in pymilvus?

[drawnwren]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

This is similar to #2331 but it got retagged as a feature request. The bug is:

collection.load()
milvus_client.search(data=data,filter="<partition_key> == 'a_partition_key'")

1. This appears to be the only way to load partitions with pymilvus but this looks like it loads the entire collection and not just the relevant partition_key. Is there a way to only load the partition?
2. When I do this search, I get results from all partitions. Not just "<partition_key> == 'a_partition_key'".

Expected Behavior

collection.load(partition_key="a_partition_key")

or something similar.

milvus_client.search(data=data, filter="<partition_key> == 'a_partition_key'"

should return results where only partition_key is "a_partition_key".

Steps/Code To Reproduce behavior

No response

Environment details

Pymilvus 2.4.9
Milvus Standalone docker container:latest

Anything else?

No response

[drawnwren]

Is this maybe a bug in the docs?

because some parts of the docs say to use expr="<partition_key> == 'a_partition_key'" and other parts say to use filter="<partition_key> == 'a_partition_key'"

edit: nevermind, no. I set both filter and expr and neither do anything with the partition_key == syntax

[drawnwren]

So, for future reference the problem was that I was using Milvus() instead of MilvusClient(). The second is the only one that seems to support filtering.