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https://issues.apache.org/jira/browse/SPARK-25402?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-25402:
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Assignee: Apache Spark (was: Xiao Li)
> Null handling in BooleanSimplification
> --------------------------------------
>
> Key: SPARK-25402
> URL: https://issues.apache.org/jira/browse/SPARK-25402
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.2, 2.3.1
> Reporter: Xiao Li
> Assignee: Apache Spark
> Priority: Blocker
>
> SPARK-20350 introduced a bug BooleanSimplification for null handling. For
> example, the following case returns a wrong answer.
> {code}
> val schema = StructType.fromDDL("a boolean, b int")
> val rows = Seq(Row(null, 1))
> val rdd = sparkContext.parallelize(rows)
> val df = spark.createDataFrame(rdd, schema)
> checkAnswer(df.where("(NOT a) OR a"), Seq.empty)
> {code}
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