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From "fengchaoge (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-21337) SQL which has large ‘case when’ expressions may cause code generation beyond 64KB
Date Tue, 11 Jul 2017 13:11:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-21337?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

fengchaoge updated SPARK-21337:
-------------------------------
    Attachment: test.xml

> SQL which has large ‘case when’ expressions may cause code generation beyond 64KB
> ---------------------------------------------------------------------------------
>
>                 Key: SPARK-21337
>                 URL: https://issues.apache.org/jira/browse/SPARK-21337
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.1.1
>         Environment: spark-2.1.1-hadoop-2.6.0-cdh-5.4.2
>            Reporter: fengchaoge
>             Fix For: 2.1.1
>
>         Attachments: test1.JPG, test2.JPG, test.JPG, test.xml
>
>
> when there are large 'case when ' expressions in spark sql,the CodeGenerator failed to
compile it. 
> Error message is followed by a huge dump of generated source code,at last failed.
> java.util.concurrent.ExecutionException: java.lang.Exception: failed to compile: org.codehaus.janino.JaninoRuntimeException:
Code of method &quot;apply_9$(Lorg/apache/spark/sql/catalyst/expressions/GeneratedClass$SpecificUnsafeProjection;Lorg/apache/spark/sql/catalyst/InternalRow;)V&quot;
of class &quot;org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection&quot;
grows beyond 64 KB.
> It seems that SPARK-13242 has solved this problem in spark-1.6.2,however it  apparence
in spark-2.1.1 again. https://issues.apache.org/jira/browse/SPARK-13242.
> is there something wrong ? 



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