issue_comments: 551090042

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https://github.com/pydata/xarray/issues/3213#issuecomment-551090042 https://api.github.com/repos/pydata/xarray/issues/3213 551090042 MDEyOklzc3VlQ29tbWVudDU1MTA5MDA0Mg== 4605410 2019-11-07T13:57:46Z 2019-11-07T13:57:46Z NONE

@oliverhiggs Ive also noticed a huge computational overhead when joining xarray datasets where the result would be sparse. Something like a minute of computation time to join two 10GB datasets, even when there are no overlapping indices. I'm not sure if a sparse representation would help but its possible we'd get a reduced memory footprint and a faster merge/concat time with this kind of support.

 
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