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Posted to issues@arrow.apache.org by "Joris Van den Bossche (Jira)" <ji...@apache.org> on 2019/09/08 19:45:00 UTC
[jira] [Commented] (ARROW-6488) [Python] pyarrow.NULL equals to
itself
[ https://issues.apache.org/jira/browse/ARROW-6488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16925238#comment-16925238 ]
Joris Van den Bossche commented on ARROW-6488:
----------------------------------------------
Thanks [~jbrockmendel] for noticing!
> [Python] pyarrow.NULL equals to itself
> --------------------------------------
>
> Key: ARROW-6488
> URL: https://issues.apache.org/jira/browse/ARROW-6488
> Project: Apache Arrow
> Issue Type: Bug
> Components: Python
> Reporter: Joris Van den Bossche
> Priority: Major
> Fix For: 0.15.0
>
>
> Somewhat related to ARROW-6386 on the interpretation of nulls, we currently have the following behaviour:
> {code}
> In [28]: pa.NULL == pa.NULL
> Out[28]: True
> {code}
> Which I think is certainly unexpected for a null / missing value. I still need to check what the array-level compare kernel does (NULL or False? ideally NULL I think), but we should follow that.
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