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https://issues.apache.org/jira/browse/SPARK-24659?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-24659:
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Assignee: (was: Apache Spark)
> GenericArrayData.equals should respect element type differences
> ---------------------------------------------------------------
>
> Key: SPARK-24659
> URL: https://issues.apache.org/jira/browse/SPARK-24659
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.0, 2.3.1, 2.4.0
> Reporter: Kris Mok
> Priority: Major
>
> Right now, Spark SQL's {{GenericArrayData.equals}} doesn't always respect
> element type differences, due to a caveat in Scala's {{==}} operator.
> e.g. {{new GenericArrayData(Array[Int](123)).equals(new
> GenericArrayData(Array[Long](123L)))}} currently returns true. But that's
> against the semantics of Spark SQL's array type, where {{array<int>}} and
> {{array<long>}} are considered to be incompatible types and thus should never
> be equal.
> This ticket proposes to fix the implementation of {{GenericArrayData.equals}}
> so that it's more aligned to Spark SQL's array type semantics.
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