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Posted to github@arrow.apache.org by GitBox <gi...@apache.org> on 2021/07/27 12:42:02 UTC

[GitHub] [arrow-datafusion] jorgecarleitao commented on issue #781: Wrong results when grouping with dictionary arrays with nulls

jorgecarleitao commented on issue #781:
URL: https://github.com/apache/arrow-datafusion/issues/781#issuecomment-887478647


   This may be related to the fact that both the dict and the values are nullable. I do not know how the builder is populating the validity, but there is both `array.keys().nulls()` and `array.values().nulls()` around.


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