issue_comments: 1014383681

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https://github.com/pydata/xarray/issues/3213#issuecomment-1014383681 https://api.github.com/repos/pydata/xarray/issues/3213 1014383681 IC_kwDOAMm_X848dkRB 2190658 2022-01-17T10:48:48Z 2022-01-17T10:48:48Z MEMBER

For ffill specifically, you would get a dense array out anyway, so there's no point to keeping it sparse, unless one did something like run-length-encoding or similar.

As for the size issue, PyData/Sparse provides the nbytes attribute which could be helpful in determining size.

 
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