[ 
https://issues.apache.org/jira/browse/HIVE-14274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15874129#comment-15874129
 ] 

ren xing commented on HIVE-14274:
---------------------------------

Any one any ideas? Seems we encountered the same problem when using pig to read 
hive parquet table after we added a sub field to a structure type field.
<code>
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 6018: 
Error converting read value to tuple
    at 
org.apache.hive.hcatalog.pig.HCatBaseLoader.getNext(HCatBaseLoader.java:76)
    at org.apache.hive.hcatalog.pig.HCatLoader.getNext(HCatLoader.java:57)
    at 
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.nextKeyValue(PigRecordReader.java:204)
    at 
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:556)
    at 
org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
    at 
org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
    at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:145)
    at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:787)
    at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
    at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
    at java.security.AccessController.doPrivileged(Native Method)
    at javax.security.auth.Subject.doAs(Subject.java:415)
    at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1656)
    at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: java.lang.IndexOutOfBoundsException: Index: 13, Size: 13
    at java.util.ArrayList.rangeCheck(ArrayList.java:635)
    at java.util.ArrayList.get(ArrayList.java:411)
    at 
org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:468)
    at 
org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:451)
    at 
org.apache.hive.hcatalog.pig.PigHCatUtil.extractPigObject(PigHCatUtil.java:410)
    at 
org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:468)
    at 
org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:386)
    at 
org.apache.hive.hcatalog.pig.HCatBaseLoader.getNext(HCatBaseLoader.java:64)
<code>

> When columns are added to structs in a Hive table, HCatLoader breaks.
> ---------------------------------------------------------------------
>
>                 Key: HIVE-14274
>                 URL: https://issues.apache.org/jira/browse/HIVE-14274
>             Project: Hive
>          Issue Type: Bug
>          Components: HCatalog
>    Affects Versions: 1.2.1, 2.1.0
>            Reporter: Mithun Radhakrishnan
>            Assignee: Mithun Radhakrishnan
>         Attachments: HIVE-14274.1.patch
>
>
> Consider this sequence of table/partition creation and schema evolution:
> {code:sql}
> -- Create table.
> CREATE EXTERNAL TABLE `simple_text` (
>                 foo STRING,
>                 bar STRUCT<goo:STRING,moo:STRING>
>                 )
> PARTITIONED BY ( dt STRING )
> ROW FORMAT DELIMITED
>         FIELDS TERMINATED BY '\t'
>         COLLECTION ITEMS TERMINATED BY ':'
> STORED AS TEXTFILE ;
> -- Add partition.
> ALTER TABLE simple_text ADD PARTITION ( dt='0' );
> -- Alter the struct-column to add a new sub-field.
> ALTER TABLE simple_text CHANGE COLUMN bar bar STRUCT<goo:STRING, moo:STRING, 
> zoo:STRING>;
> {code}
> The {{dt='0'}} partition's schema indicates 2 fields in {{bar}}. The data can 
> be read using Hive, but not through HCatLoader. The error looks as follows:
> {noformat}
> org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception 
> while executing (Name: data_raw: 
> Store(hdfs://dilithiumblue-nn1.blue.ygrid.yahoo.com:8020/tmp/temp-643668868/tmp-1639945319:org.apache.pig.impl.io.TFileStorage)
>  - scope-1 Operator Key: scope-1): 
> org.apache.pig.backend.executionengine.ExecException: ERROR 0: 
> org.apache.pig.backend.executionengine.ExecException: ERROR 6018: Error 
> converting read value to tuple
>       at 
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:314)
>       at 
> org.apache.pig.backend.hadoop.executionengine.tez.plan.operator.POStoreTez.getNextTuple(POStoreTez.java:123)
>       at 
> org.apache.pig.backend.hadoop.executionengine.tez.runtime.PigProcessor.runPipeline(PigProcessor.java:376)
>       at 
> org.apache.pig.backend.hadoop.executionengine.tez.runtime.PigProcessor.run(PigProcessor.java:241)
>       at 
> org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.run(LogicalIOProcessorRuntimeTask.java:362)
>       at 
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:179)
>       at 
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable$1.run(TezTaskRunner.java:171)
>       at java.security.AccessController.doPrivileged(Native Method)
>       at javax.security.auth.Subject.doAs(Subject.java:422)
>       at 
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1679)
>       at 
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:171)
>       at 
> org.apache.tez.runtime.task.TezTaskRunner$TaskRunnerCallable.callInternal(TezTaskRunner.java:167)
>       at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
>       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
>       at 
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>       at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>       at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 0: 
> org.apache.pig.backend.executionengine.ExecException: ERROR 6018: Error 
> converting read value to tuple
>       at 
> org.apache.pig.backend.hadoop.executionengine.tez.plan.operator.POSimpleTezLoad.getNextTuple(POSimpleTezLoad.java:160)
>       at 
> org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator.processInput(PhysicalOperator.java:305)
>       ... 16 more
> Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 6018: 
> Error converting read value to tuple
>       at 
> org.apache.hive.hcatalog.pig.HCatBaseLoader.getNext(HCatBaseLoader.java:76)
>       at org.apache.hive.hcatalog.pig.HCatLoader.getNext(HCatLoader.java:63)
>       at 
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.nextKeyValue(PigRecordReader.java:204)
>       at 
> org.apache.tez.mapreduce.lib.MRReaderMapReduce.next(MRReaderMapReduce.java:118)
>       at 
> org.apache.pig.backend.hadoop.executionengine.tez.plan.operator.POSimpleTezLoad.getNextTuple(POSimpleTezLoad.java:140)
>       ... 17 more
> Caused by: java.lang.IndexOutOfBoundsException: Index: 2, Size: 2
>       at java.util.ArrayList.rangeCheck(ArrayList.java:653)
>       at java.util.ArrayList.get(ArrayList.java:429)
>       at 
> org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:468)
>       at 
> org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:451)
>       at 
> org.apache.hive.hcatalog.pig.PigHCatUtil.extractPigObject(PigHCatUtil.java:410)
>       at 
> org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:468)
>       at 
> org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:386)
>       at 
> org.apache.hive.hcatalog.pig.HCatBaseLoader.getNext(HCatBaseLoader.java:64)
>       ... 21 more
> {noformat}



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