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From "Iaroslav Zeigerman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (POOL-313) Code generation fails when running SQL expressions against a wide dataset (thousands of columns)
Date Thu, 18 Aug 2016 15:03:20 GMT

    [ https://issues.apache.org/jira/browse/POOL-313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15426593#comment-15426593
] 

Iaroslav Zeigerman commented on POOL-313:
-----------------------------------------

Sorry, wrong project.

> Code generation fails when running SQL expressions against a wide dataset (thousands
of columns)
> ------------------------------------------------------------------------------------------------
>
>                 Key: POOL-313
>                 URL: https://issues.apache.org/jira/browse/POOL-313
>             Project: Commons Pool
>          Issue Type: Bug
>    Affects Versions: 2.0
>            Reporter: Iaroslav Zeigerman
>              Labels: SQL
>
> When reading the CSV file that contains 1776 columns Spark and Janino fail to generate
the code with message:
> {noformat}
> Constant pool has grown past JVM limit of 0xFFFF
> {noformat}
> When running a common select with all columns it's fine:
> {code}
>       val allCols = df.columns.map(c => col(c).as(c + "_alias"))
>       val newDf = df.select(allCols: _*)
>       newDf.show()
> {code}
> But when I invoke the describe method:
> {code}
> newDf.describe(allCols: _*)
> {code}
> it fails with the following stack trace:
> {noformat}
> 	at org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$.org$apache$spark$sql$catalyst$expressions$codegen$CodeGenerator$$doCompile(CodeGenerator.scala:889)
> 	at org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$$anon$1.load(CodeGenerator.scala:941)
> 	at org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator$$anon$1.load(CodeGenerator.scala:938)
> 	at org.spark_project.guava.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3599)
> 	at org.spark_project.guava.cache.LocalCache$Segment.loadSync(LocalCache.java:2379)
> 	... 30 more
> Caused by: org.codehaus.janino.JaninoRuntimeException: Constant pool has grown past JVM
limit of 0xFFFF
> 	at org.codehaus.janino.util.ClassFile.addToConstantPool(ClassFile.java:402)
> 	at org.codehaus.janino.util.ClassFile.addConstantIntegerInfo(ClassFile.java:300)
> 	at org.codehaus.janino.UnitCompiler.addConstantIntegerInfo(UnitCompiler.java:10307)
> 	at org.codehaus.janino.UnitCompiler.pushConstant(UnitCompiler.java:8868)
> 	at org.codehaus.janino.UnitCompiler.compileGet2(UnitCompiler.java:4346)
> 	at org.codehaus.janino.UnitCompiler.access$7100(UnitCompiler.java:185)
> 	at org.codehaus.janino.UnitCompiler$10.visitIntegerLiteral(UnitCompiler.java:3265)
> 	at org.codehaus.janino.Java$IntegerLiteral.accept(Java.java:4321)
> 	at org.codehaus.janino.UnitCompiler.compileGet(UnitCompiler.java:3290)
> 	at org.codehaus.janino.UnitCompiler.fakeCompile(UnitCompiler.java:2605)
> 	at org.codehaus.janino.UnitCompiler.compileGetValue(UnitCompiler.java:4362)
> 	at org.codehaus.janino.UnitCompiler.compileGet2(UnitCompiler.java:3975)
> 	at org.codehaus.janino.UnitCompiler.access$6900(UnitCompiler.java:185)
> 	at org.codehaus.janino.UnitCompiler$10.visitMethodInvocation(UnitCompiler.java:3263)
> 	at org.codehaus.janino.Java$MethodInvocation.accept(Java.java:3974)
> 	at org.codehaus.janino.UnitCompiler.compileGet(UnitCompiler.java:3290)
> 	at org.codehaus.janino.UnitCompiler.compileGetValue(UnitCompiler.java:4368)
> 	at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:2662)
> 	at org.codehaus.janino.UnitCompiler.access$4400(UnitCompiler.java:185)
> 	at org.codehaus.janino.UnitCompiler$7.visitMethodInvocation(UnitCompiler.java:2627)
> 	at org.codehaus.janino.Java$MethodInvocation.accept(Java.java:3974)
> 	at org.codehaus.janino.UnitCompiler.compile(UnitCompiler.java:2654)
> 	at org.codehaus.janino.UnitCompiler.compile2(UnitCompiler.java:1643)
> ....
> {noformat}



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