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
2247914876,I_kwDOAMm_X86F_HV8,8950,ENH: Make `_to_dataframe` faster for extension array columns after `pandas` fix,43999641,open,0,,,0,2024-04-17T10:10:37Z,2024-04-28T20:03:23Z,,CONTRIBUTOR,,,,"### What is your issue?

One https://github.com/pandas-dev/pandas/issues/57676 is completed, we should be able to do the joins in the `_to_dataframe` method faster (we need to be able to handle the singleton case which is hte issue with pandas): https://github.com/pydata/xarray/blob/239309f881ba0d7e02280147bc443e6e286e6a63/xarray/core/dataset.py#L7170-L7177

see discussion [here](https://github.com/pydata/xarray/pull/8723/files#r1506275296)

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