issue_comments: 577696741

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https://github.com/pydata/xarray/pull/3545#issuecomment-577696741 https://api.github.com/repos/pydata/xarray/issues/3545 577696741 MDEyOklzc3VlQ29tbWVudDU3NzY5Njc0MQ== 5821660 2020-01-23T14:08:57Z 2020-01-23T14:08:57Z MEMBER

@scottcha @shoyer For one of my use cases (240 datasets, 1 with missing variables) I do not see any performance penalties using this implementation compared to the current. But this might be due to the fact, that the most time consuming part is the expand_dims for every dataset, which accounts for roughly 80% overall concat runtime.

If I can be of any help to push this over the line, please ping me.

 
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