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Date: Mon, 27 Feb 2012 16:46:49 +0000 (UTC)
From: "Pavel Yaskevich (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CASSANDRA-3962) CassandraStorage can't cast
 fields from a CF correctly
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    [ https://issues.apache.org/jira/browse/CASSANDRA-3962?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13217271#comment-13217271 ] 

Pavel Yaskevich commented on CASSANDRA-3962:
--------------------------------------------

+1
                
> CassandraStorage can't cast fields from a CF correctly
> ------------------------------------------------------
>
>                 Key: CASSANDRA-3962
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3962
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Hadoop
>    Affects Versions: 1.0.8
>         Environment: OSX 10.6.latest, Pig 0.9.2.
>            Reporter: Janne Jalkanen
>            Assignee: Brandon Williams
>              Labels: hadoop, pig
>             Fix For: 1.0.9, 1.1.0
>
>         Attachments: 0001-Add-LoadCaster-to-CassandraStorage.txt, 0002-Compose-key-from-marshaller.txt, test.cli, test.pig
>
>
> Included scripts demonstrate the problem.  Regardless of whether the key is cast as a chararray or not, the Pig scripts fail with 
> {code}
> java.lang.ClassCastException: org.apache.pig.data.DataByteArray cannot be cast to java.lang.String
> 	at org.apache.pig.backend.hadoop.HDataType.getWritableComparableTypes(HDataType.java:72)
> 	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapReduce$Map.collect(PigGenericMapReduce.java:117)
> 	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.runPipeline(PigGenericMapBase.java:269)
> 	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:262)
> 	at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigGenericMapBase.map(PigGenericMapBase.java:64)
> 	at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
> 	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
> 	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
> 	at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
> {code}

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