[GitHub] [arrow-datafusion] NGA-TRAN opened a new issue #1234: select min/max(string dictionary) panics

[GitBox <gi...@apache.org>]

NGA-TRAN opened a new issue #1234:
URL: https://github.com/apache/arrow-datafusion/issues/1234


   **Describe the bug**
   SELECT min/max(dictionary_string_column) will panic with the following message:
   `ArrowError(InvalidArgumentError("column types must match schema types, expected Dictionary(Int32, Utf8) but found Utf8 at column index 0"))'`
   
   **To Reproduce**
   Add the below test inside [query_on_string_dictionary](https://github.com/apache/arrow-datafusion/blob/dd9350607a9b4c8aaf6d7204fda8f1eab31a7ac2/datafusion/tests/sql.rs#L3935-L3993), you will hit that bug.
       // aggregation min
       let sql = "SELECT MIN(d1) FROM test";
       let actual = execute(&mut ctx, sql).await;
       let expected = vec![vec!["one"]];
       assert_eq!(expected, actual);
   
   **Expected behavior**
   Query runs and returns correct results
   
   


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[GitHub] [arrow-datafusion] alamb closed issue #1234: select min/max(string dictionary) panics

[GitBox <gi...@apache.org>]

alamb closed issue #1234:
URL: https://github.com/apache/arrow-datafusion/issues/1234


   


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