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https://issues.apache.org/jira/browse/SPARK-36274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17386416#comment-17386416
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Apache Spark commented on SPARK-36274:
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User 'xinrong-databricks' has created a pull request for this issue:
https://github.com/apache/spark/pull/33497
> Fix equality comparison of unordered Categoricals
> -------------------------------------------------
>
> Key: SPARK-36274
> URL: https://issues.apache.org/jira/browse/SPARK-36274
> Project: Spark
> Issue Type: Sub-task
> Components: PySpark
> Affects Versions: 3.2.0
> Reporter: Xinrong Meng
> Priority: Major
>
> We cannot rely on codes when compare equality of unordered Categoricals.
> An example looks like
> {code:java}
> >>> (ps.Series(pd.Categorical(list('abca'))) ==
> >>> ps.Series(pd.Categorical(list('bcaa'),
> >>> categories=list('bca')))).sort_index()
> 0 True
> 1 True
> 2 True
> 3 False
> dtype: bool
> {code}
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