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  1. Apache Arrow
  2. ARROW-7478

[Rust] [DataFusion] Group by expression ignored unless paired with aggregate expression

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      GROUP BY expressions are ignored unless the query also contains an aggregate expression.

      To reproduce you can execute the following query on the aggregate_test_100 data set.

      SELECT c2 FROM aggregate_test_100 GROUP BY c2

      Expected:

      1
      2
      3
      4
      5

      Actual:

      2
      5
      ...98 more rows...

       

      The order of the expected isn't necessarily correct since the query doesn't contain an ORDER BY expression.

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              kylemccarthy Kyle McCarthy
              kylemccarthy Kyle McCarthy
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