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https://issues.apache.org/jira/browse/SPARK-23523?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-23523:
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Affects Version/s: 2.1.2
> Incorrect result caused by the rule OptimizeMetadataOnlyQuery
> -------------------------------------------------------------
>
> Key: SPARK-23523
> URL: https://issues.apache.org/jira/browse/SPARK-23523
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.1.2, 2.2.1, 2.3.0
> Reporter: Xiao Li
> Assignee: Xiao Li
> Priority: Major
> Fix For: 2.4.0
>
>
> {code:scala}
> val tablePath = new File(s"${path.getCanonicalPath}/cOl3=c/cOl1=a/cOl5=e")
> Seq(("a", "b", "c", "d", "e")).toDF("cOl1", "cOl2", "cOl3", "cOl4", "cOl5")
> .write.json(tablePath.getCanonicalPath)
> val df = spark.read.json(path.getCanonicalPath).select("CoL1", "CoL5",
> "CoL3").distinct()
> df.show()
> {code}
> This returns a wrong result
> {{[c,e,a]}}
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