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https://issues.apache.org/jira/browse/PIG-5333?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16427554#comment-16427554
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Rohini Palaniswamy commented on PIG-5333:
-----------------------------------------
+1
> LoadCaster sometimes not set for complex type
> ---------------------------------------------
>
> Key: PIG-5333
> URL: https://issues.apache.org/jira/browse/PIG-5333
> Project: Pig
> Issue Type: Bug
> Reporter: Koji Noguchi
> Assignee: Koji Noguchi
> Priority: Major
> Attachments: pig-5333-v01.patch
>
>
> TypeCasting a bytearray field in the nested foreach below
> {code}
> A = load 'input.txt' as (a0:bytearray, a1:bytearray);
> B = group A by (a0,a1);
> C = FOREACH B GENERATE SIZE(A) as sizeofgroup, A;
> SPLIT C into D if sizeofgroup > 2, Z OTHERWISE;
> F = FOREACH D {
> F1 = FOREACH A generate (chararray) a0;
> GENERATE F1;
> }
> store F into '/tmp/output/F';
> store Z into '/tmp/output/Z';
> {code}
> Fails with
> {noformat}
> Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 1075:
> Received a bytearray from the UDF or Union from two different Loaders. Cannot
> determine how to convert the bytearray to string for [a0[7,29]]
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POCast.getNextString(POCast.java:1126)
> {noformat}
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