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https://issues.apache.org/jira/browse/PIG-1813?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Dai updated PIG-1813:
----------------------------
Attachment: PIG-1813-3.patch
PIG-1813-2.patch is for trunk.
> Pig 0.8 throws ERROR 1075 while trying to refer a map in the result of eval
> udf.Works with 0.7
> -----------------------------------------------------------------------------------------------
>
> Key: PIG-1813
> URL: https://issues.apache.org/jira/browse/PIG-1813
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.8.0
> Reporter: Vivek Padmanabhan
> Attachments: PIG-1813-0.patch, PIG-1813-1.patch, PIG-1813-2.patch,
> PIG-1813-3.patch
>
>
> register myudf.jar;
> A = load 'input' MyZippedStorage('\u0001') as ($inputSchema);
> B = foreach A generate id , value ;
> C = foreach B generate id , org.myudf.ExplodeHashList( (chararray)value,
> '\u0002', '\u0004', '\u0003') as value;
> D = FILTER C by value is not null;
> E = foreach D generate id , flatten(org.myudf.GETFIRST(value)) as hop;
> F = foreach E generate id , hop#'rmli' as rmli:bytearray ;
> store F into 'output.bz2' using PigStorage();
> The above script fails when run with Pig 0.8 but runs fine with Pig 0.7 or if
> pig.usenewlogicalplan=false.
> The below is the exception thrown in 0.8 :
> org.apache.pig.backend.executionengine.ExecException: ERROR 1075: Received a
> bytearray from the UDF. Cannot determine how to convert the bytearray to map.
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POCast.getNext(POCast.java:952)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POMapLookUp.processInput(POMapLookUp.java:87)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POMapLookUp.getNext(POMapLookUp.java:98)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.POMapLookUp.getNext(POMapLookUp.java:117)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.processPlan(POForEach.java:346)
> at
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators.POForEach.getNext(POForEach.java:291)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.runPipeline(PigMapBase.java:236)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:231)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigMapBase.map(PigMapBase.java:53)
> at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:638)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:314)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:217)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1062)
> at org.apache.hadoop.mapred.Child.main(Child.java:211)
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