html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,performed_via_github_app,issue
https://github.com/pydata/xarray/issues/7250#issuecomment-1302258508,https://api.github.com/repos/pydata/xarray/issues/7250,1302258508,IC_kwDOAMm_X85NnuNM,2448579,2022-11-03T15:10:46Z,2022-11-03T15:10:46Z,MEMBER,"Ah very good find! Thanks.

 maybe this can be fixed, or at least made more consistent. I think `.values` is pulling out of the pandas index (so is promoted) while we do actually have an underlying `int32` array.

``` python
>>> ds.stack(b=('a',))['a'].dtype #== ds.stack(b=('a',))['a'].values.dtype
dtype('int32')

>>> ds.stack(b=('a',))['a'].values.dtype
dtype('int64')
```


cc @benbovy ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1433998942
https://github.com/pydata/xarray/issues/7250#issuecomment-1302239394,https://api.github.com/repos/pydata/xarray/issues/7250,1302239394,IC_kwDOAMm_X85Nnpii,2448579,2022-11-03T14:57:16Z,2022-11-03T14:57:34Z,MEMBER,"Unfortunately this is a pandas thing, so we can't fix it. Pandas only provides `Int64Index` so everything gets cast to that. Fixing that is on the roadmap for pandas 2.0 I think (See https://github.com/pandas-dev/pandas/pull/44819#issuecomment-999790361)","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,1433998942