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https://issues.apache.org/jira/browse/PARQUET-1121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16193288#comment-16193288
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Uwe L. Korn commented on PARQUET-1121:
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PR: https://github.com/apache/parquet-cpp/pull/407
> C++: DictionaryArrays of NullType cannot be written
> ---------------------------------------------------
>
> Key: PARQUET-1121
> URL: https://issues.apache.org/jira/browse/PARQUET-1121
> Project: Parquet
> Issue Type: Bug
> Components: parquet-cpp
> Affects Versions: cpp-1.3.0
> Reporter: Uwe L. Korn
> Fix For: cpp-1.3.1
>
>
> Current exception:
> {code}
> ArrowNotImplementedError: No cast implemented from dictionary<values=null,
> indices=int8, ordered=0> to null
> {code}
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