issues: 212177054

This data as json

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
212177054 MDU6SXNzdWUyMTIxNzcwNTQ= 1297 Encoding lost upon concatenation 500246 closed 0     6 2017-03-06T16:33:40Z 2020-04-05T19:12:41Z 2019-02-06T22:51:19Z CONTRIBUTOR      

When using xarray.concat, attributes are retained, but encoding information is not. I believe encoding information should be retained, at least optionally.

``` In [64]: da = xarray.DataArray([1, 2, 3, 2, 1])

In [65]: da.attrs.update(foo="bar")

In [66]: da.encoding.update(complevel=5)

In [67]: da2 = xarray.concat((da, da), dim="new")

In [68]: print(da2.attrs) OrderedDict([('foo', 'bar')])

In [69]: print(da2.encoding) {} ```

 
{
    "url": "https://api.github.com/repos/pydata/xarray/issues/1297/reactions",
    "total_count": 0,
    "+1": 0,
    "-1": 0,
    "laugh": 0,
    "hooray": 0,
    "confused": 0,
    "heart": 0,
    "rocket": 0,
    "eyes": 0
}
   completed 13221727 issue

Links from other tables