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When running JoinAcross for larger datasets (lists of associations, ~100k lines, >100 columns) in Mathematica 10.1 I get the following behaviour:

mergeddata=JoinAcross[dataset1,dataset2,"c1"]

generates output of the form 

{<|c1->*value1*,c2->Empty,c3->*value2*,...|>,...}

I can't seem to find a way to view this output or any queries on mergeddata in the standard tabular format for datasets, which works fine for dataset1 and dataset2.

According to the answers in

Join two datasets on keys

this should work without a problem.

Column "c1" in my dataset1 contains values which do not occur in dataset2, and vice versa. Apart from that, there seems to be nothing special about both datasets.

sandman567
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  • {<|c1->*value1*,c2->Empty,c3->*value2*,...|>,...} here c1 is an Expression and not a String - for your join you specify "c1" which doesn't look like a key in your Datasets – Peter Roberge Sep 05 '16 at 18:31

0 Answers0