issue_comments: 398150381

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https://github.com/pydata/xarray/issues/2237#issuecomment-398150381 https://api.github.com/repos/pydata/xarray/issues/2237 398150381 MDEyOklzc3VlQ29tbWVudDM5ODE1MDM4MQ== 1197350 2018-06-18T18:27:08Z 2018-06-18T18:27:08Z MEMBER

while your example shows that chunks are lost after the groupby, does that prove for sure that the groupby operation does not use the original chunks?

One way to answer that is the following:

Here is the dask graph for groupby('bar'):

Here is the dask graph for groupby('baz'): 

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