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  • xarray · 2 ✖
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
1174907042 PR_kwDOAMm_X840t0YV 6390 [skip-ci] Add benchmarks for groupby math dcherian 2448579 closed 0     0 2022-03-21T05:25:25Z 2022-03-21T07:51:18Z 2022-03-21T07:51:16Z MEMBER   0 pydata/xarray/pulls/6390

From #6160

 
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     xarray 13221727 pull
1174177534 I_kwDOAMm_X85F_Ib- 6381 vectorized indexing with DataArray should not preserve IndexVariable dcherian 2448579 closed 0     1 2022-03-19T05:08:39Z 2022-03-21T04:47:47Z 2022-03-21T04:47:47Z MEMBER      

What happened?

After vectorized indexing a DataArray with dim xby a DataArray z, we get a DataArray with dim z and x as non-dim coordinate. But x is still an IndexVariable, not a normal variable.

What did you expect to happen?

x should be a normal variable.

Minimal Complete Verifiable Example

```python import xarray as xr xr.set_options(display_style="text")

da = xr.DataArray([1, 2, 3], dims="x", coords={"x": [0, 1, 2]}) idxr = xr.DataArray([1], dims="z", name="x", coords={"z": ("z", ["a"])}) da.sel(x=idxr) ```

<xarray.DataArray (z: 1)> array([2]) Coordinates: x (z) int64 1 * z (z) <U1 'a'

x is a non-dim coordinate but is backed by a IndexVariable with the wrong name! python da.sel(x=idxr).x.variable

<xarray.IndexVariable 'z' (z: 1)> array([1])

Relevant log output

No response

Anything else we need to know?

No response

Environment

xarray main but this bug was present prior to the explicit indexes refactor.

 
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   completed xarray 13221727 issue

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