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https://issues.apache.org/jira/browse/SPARK-15214?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17531008#comment-17531008
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Franck Tago commented on SPARK-15214:
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it appears that code generation is not supported for nested Generate cases ?
That is if I call the explode function in order to flatten a nested array.
> Implement code generation for Generate
> --------------------------------------
>
> Key: SPARK-15214
> URL: https://issues.apache.org/jira/browse/SPARK-15214
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Reporter: Herman van Hövell
> Assignee: Herman van Hövell
> Priority: Major
> Fix For: 2.2.0
>
>
> {{Generate}} currently does not support code generation. Lets add support for
> CG and for it and its most important generators: {{explode}} and
> {{json_tuple}}.
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