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https://issues.apache.org/jira/browse/SPARK-16845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15575421#comment-15575421
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Harish commented on SPARK-16845:
--------------------------------

I have posted a scenario in stack overflow  
http://stackoverflow.com/questions/40044779/find-mean-and-corr-of-10-000-columns-in-pyspark-dataframe
  ... let me know if you need any help on this. If this is already taken care 
you can ignore my comment.

> org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificOrdering" 
> grows beyond 64 KB
> ---------------------------------------------------------------------------------------------
>
>                 Key: SPARK-16845
>                 URL: https://issues.apache.org/jira/browse/SPARK-16845
>             Project: Spark
>          Issue Type: Bug
>          Components: Java API, ML, MLlib
>    Affects Versions: 2.0.0
>            Reporter: hejie
>
> I have a wide table(400 columns), when I try fitting the traindata on all 
> columns,  the fatal error occurs. 
>       ... 46 more
> Caused by: org.codehaus.janino.JaninoRuntimeException: Code of method 
> "(Lorg/apache/spark/sql/catalyst/InternalRow;Lorg/apache/spark/sql/catalyst/InternalRow;)I"
>  of class 
> "org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificOrdering" 
> grows beyond 64 KB
>       at org.codehaus.janino.CodeContext.makeSpace(CodeContext.java:941)
>       at org.codehaus.janino.CodeContext.write(CodeContext.java:854)



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