issues: 1361626450

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association active_lock_reason draft pull_request body reactions performed_via_github_app state_reason repo type
1361626450 I_kwDOAMm_X85RKMVS 6987 Indexes.get_unique() TypeError with pandas indexes 4160723 closed 0 4160723   0 2022-09-05T09:02:50Z 2022-09-23T07:30:39Z 2022-09-23T07:30:39Z MEMBER      

@benbovy I also just tested the get_unique() method that you mentioned and maybe noticed a related issue here, which I'm not sure is wanted / expected.

Taking the above dataset ds, accessing this function results in an error:

```python

ds.indexes.get_unique()

TypeError: unhashable type: 'MultiIndex' ```

However, for xindexes it works: ```python

ds.xindexes.get_unique()

[<xarray.core.indexes.PandasMultiIndex at 0x7f105bf1df20>] ```

Originally posted by @lukasbindreiter in https://github.com/pydata/xarray/issues/6752#issuecomment-1236717180

 
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