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https://issues.apache.org/jira/browse/FLINK-40420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18115638#comment-18115638
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Bettle commented on FLINK-40420:
--------------------------------
Hi [~dianfu], I have created FLINK-40673 to track this issue, including the
reproduction, workaround, and comparison results. I would also be happy to
investigate further and try to contribute a fix when I have some spare time.
Thanks!
> Add set operations to DataFrame API
> -----------------------------------
>
> Key: FLINK-40420
> URL: https://issues.apache.org/jira/browse/FLINK-40420
> Project: Flink
> Issue Type: Sub-task
> Components: API / Python
> Reporter: Liu Liu
> Assignee: Bettle
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.4.0
>
>
> Add relational set operations to DataFrame:
> {code:java}
> def union(self, other: DataFrame) -> DataFrame
> def union_all(self, other: DataFrame) -> DataFrame
> def intersect(self, other: DataFrame) -> DataFrame
> def intersect_all(self, other: DataFrame) -> DataFrame
> def minus(self, other: DataFrame) -> DataFrame
> def minus_all(self, other: DataFrame) -> DataFrame {code}
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