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https://issues.apache.org/jira/browse/SPARK-22378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Li resolved SPARK-22378.
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Resolution: Fixed
Assignee: Kazuaki Ishizaki
Fix Version/s: 2.3.0
> Redundant nullcheck is generated for extracting value in complex types
> ----------------------------------------------------------------------
>
> Key: SPARK-22378
> URL: https://issues.apache.org/jira/browse/SPARK-22378
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Kazuaki Ishizaki
> Assignee: Kazuaki Ishizaki
> Priority: Minor
> Fix For: 2.3.0
>
>
> Redundant null check is generated in the code for extracting an element from
> complex types {{GetArrayItem}}, {{GetMapValue}}, and
> {{GetArrayStructFields}}. Since these code generations do not take care of
> {{nullable}} in {{DataType}} such as {{ArrayType}}, the generated code always
> has {{isNullAt(index)}}.
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