issue_comments: 36189171

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https://github.com/pydata/xarray/issues/25#issuecomment-36189171 https://api.github.com/repos/pydata/xarray/issues/25 36189171 MDEyOklzc3VlQ29tbWVudDM2MTg5MTcx 1217238 2014-02-26T23:03:06Z 2014-02-26T23:03:06Z MEMBER

x + y could indeed check variable attributes before trying to do the merge. I don't know if it does in the current implementation.

My concern is more that metadata like "title" or "source" should not be required to match, because that metadata will almost always be conflicting. Perhaps "units", "_FIllValue", "scale_factor" and "add_offset" (if values were not automatically masked/scaled) should be specifically blacklisted to prohibit conflicts.

 
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