[Enhancement]: Support unset properties when using attu

[xige-16]

Is there an existing issue for this?

• I have searched the existing issues

What would you like to be added?

1. we can use pymilvus.collection.set_properties or attu to set collection's properties, Then we can only modify these properties manually, but you cannot cancel these properties and use the system default values.
2. a warning log issue: Reset invalid properties zilliztech/attu#547

So when set property value == "", the behavior can be changed to cancel the manual setting of properties.

Why is this needed?

No response

Anything else?

No response

[shanghaikid]

how to unset them via sdk?

[xige-16]

how to unset them via sdk?

Didn't see any corresponding python function

[xige-16]

Is this pr OK?

[jaime0815]

It may conflict with some configurations that the value can be configured to "". we can support add and remove actions to enhance the alter function. @xige-16

[xige-16]

we can support add and remove

If some configurations need to be set to "", then setting the default value of these configurations to "" can achieve the same effect. Anyway, waiting for your updates. @jaime0815

[jaime0815]

It has different effects: @xige-16

1. Setting the property value to "" by default removes this property during the alter operation, which is treated as invalid.

2. Setting the property value to "" may also be useful for this property, but this deeply depends on the implementation.

[xiaofan-luan]

it's better to support a fucntion to remove.

But it seems to fine to keep "" as not set?

[xiaofan-luan]

@xige-16
i think it 's fine to rebase and merge it

[stale]

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