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https://issues.apache.org/jira/browse/SPARK-26930?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-26930.
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Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 23855
[https://github.com/apache/spark/pull/23855]
> Tests in ParquetFilterSuite don't verify filter class
> -----------------------------------------------------
>
> Key: SPARK-26930
> URL: https://issues.apache.org/jira/browse/SPARK-26930
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Nandor Kollar
> Assignee: Nandor Kollar
> Priority: Minor
> Fix For: 3.0.0
>
>
> While investigating Parquet predicate pushdown test cases, I noticed that
> several tests seems to be broken, they don't test what they were originally
> intended to. Most of the verification ends up in one of the overloaded
> checkFilterPredicate functions, which supposed to test if a given filter
> class is generated or not with this call: {{maybeFilter.exists(_.getClass ===
> filterClass)}}, but on one side an assert is missing from here, on the other
> side, the filters are more complicated, for example equality is checked with
> an 'and' wrapping not null check along with an equality check for the given
> value. 'Exists' function call won't help with these compounds filters, since
> they are not collection instances.
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