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https://issues.apache.org/jira/browse/SPARK-22226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xiao Li updated SPARK-22226:
----------------------------
Issue Type: Sub-task (was: Bug)
Parent: SPARK-22510
> splitExpression can create too many method calls (generating a Constant Pool
> limit error)
> -----------------------------------------------------------------------------------------
>
> Key: SPARK-22226
> URL: https://issues.apache.org/jira/browse/SPARK-22226
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: Marco Gaido
> Assignee: Marco Gaido
> Priority: Major
> Fix For: 2.3.0
>
>
> Code generation for very wide datasets can fail because of the Constant Pool
> limit reached.
> This can be caused by many reasons. One of them is that we are currently
> splitting the definition of the generated methods among several
> {{NestedClass}} but all these methods are called in the main class. Since we
> have entries added to the constant pool for each method invocation, this is
> limiting the number of rows and is leading for very wide dataset to:
> {noformat}
> org.codehaus.janino.JaninoRuntimeException: Constant pool for class
> org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificMutableProjection
> has grown past JVM limit of 0xFFFF
> {noformat}
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