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https://issues.apache.org/jira/browse/SPARK-23609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16387470#comment-16387470
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Apache Spark commented on SPARK-23609:
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User 'heary-cao' has created a pull request for this issue:
https://github.com/apache/spark/pull/20747
> Test code does not conform to the test title
> --------------------------------------------
>
> Key: SPARK-23609
> URL: https://issues.apache.org/jira/browse/SPARK-23609
> Project: Spark
> Issue Type: Improvement
> Components: SQL, Tests
> Affects Versions: 2.4.0
> Reporter: caoxuewen
> Priority: Minor
>
> Currently， In testing EnsureRequirements's test cases to eliminate
> ShuffleExchange, The test code is not in conformity with the purpose of the
> test.These test cases are as follows:
> 1、test("EnsureRequirements eliminates Exchange if child has same
> partitioning")
> The checking condition is that there is no ShuffleExchange in the physical
> plan. = = 2 It's not accurate here.
> 2、test("EnsureRequirements does not eliminate Exchange with different
> partitioning")
> The purpose of the test is to not eliminate ShuffleExchange, but its test
> code is the same as test("EnsureRequirements eliminates Exchange if child has
> same partitioning")
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