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https://issues.apache.org/jira/browse/SPARK-22215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16194623#comment-16194623
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Apache Spark commented on SPARK-22215:
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User 'mgaido91' has created a pull request for this issue:
https://github.com/apache/spark/pull/19447
> Add a configuration parameter to set max size for generated classes
> -------------------------------------------------------------------
>
> Key: SPARK-22215
> URL: https://issues.apache.org/jira/browse/SPARK-22215
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Marco Gaido
>
> SPARK-18016 introduced an arbitrary threshold for the size of a generated
> class
> (https://github.com/apache/spark/blob/83488cc3180ca18f829516f550766efb3095881e/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/codegen/CodeGenerator.scala#L286).
> This value is hardcoded.
> Since this is just a guess, in some cases making it smaller can help avoiding
> the error of exceeding the maximum number of entries in the Constant Pool.
> Then, I suggest to introduce a new configuration parameter, which defaults to
> the previous value, but it allows to set this to a smaller one if needed.
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