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Posted to jira@arrow.apache.org by "Ian Alexander Joiner (Jira)" <ji...@apache.org> on 2021/11/21 10:06:00 UTC

[jira] [Created] (ARROW-14782) [C++][Python] The ORC writer does not support all-null object columns from Pandas

Ian Alexander Joiner created ARROW-14782:
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             Summary: [C++][Python] The ORC writer does not support all-null object columns from Pandas
                 Key: ARROW-14782
                 URL: https://issues.apache.org/jira/browse/ARROW-14782
             Project: Apache Arrow
          Issue Type: Bug
          Components: C++, Python
            Reporter: Ian Alexander Joiner
            Assignee: Ian Alexander Joiner
             Fix For: 7.0.0


Object columns in Pandas are currently converted to Null type columns in Arrow and they can not be written using `pyarrow.orc.write_table`. Since ORC doesn't support Null type columns we need to find the appropriate DataType for such columns and do the write.



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