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https://issues.apache.org/jira/browse/HIVE-6491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13924843#comment-13924843
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Brock Noland commented on HIVE-6491:
------------------------------------
Being taken forward in HIVE-6575.
> ClassCastException in AbstractParquetMapInspector
> -------------------------------------------------
>
> Key: HIVE-6491
> URL: https://issues.apache.org/jira/browse/HIVE-6491
> Project: Hive
> Issue Type: Bug
> Components: File Formats
> Environment: cdh5-beta2, trunk
> Reporter: Andrey Stepachev
>
> AbstractParquetMapInspector uses wrong class cast
> https://github.com/apache/hive/blob/trunk/ql/src/java/org/apache/hadoop/hive/ql/io/parquet/serde/AbstractParquetMapInspector.java#L144
> It should be AbstractParquetMapInspector
> {code:java}
> final StandardParquetHiveMapInspector other =
> (StandardParquetHiveMapInspector) obj;
> {code}
> Such conversion leads to class cast exception in case of
> DeepParquetHiveMapInspector.
> {code}
> Caused by: java.lang.ClassCastException:
> org.apache.hadoop.hive.ql.io.parquet.serde.DeepParquetHiveMapInspector cannot
> be cast to
> org.apache.hadoop.hive.ql.io.parquet.serde.StandardParquetHiveMapInspector
> at
> org.apache.hadoop.hive.ql.io.parquet.serde.AbstractParquetMapInspector.equals(AbstractParquetMapInspector.java:131)
> at java.util.AbstractList.equals(AbstractList.java:523)
> at java.util.AbstractList.equals(AbstractList.java:523)
> at
> java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:996)
> at
> org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorFactory.getStandardStructObjectInspector(ObjectInspectorFactory.java:281)
> at
> org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorFactory.getStandardStructObjectInspector(ObjectInspectorFactory.java:268)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initEvaluatorsAndReturnStruct(Operator.java:1022)
> at
> org.apache.hadoop.hive.ql.exec.SelectOperator.initializeOp(SelectOperator.java:65)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:377)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:453)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initializeChildren(Operator.java:409)
> at
> org.apache.hadoop.hive.ql.exec.TableScanOperator.initializeOp(TableScanOperator.java:188)
> at
> org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:377)
> at
> org.apache.hadoop.hive.ql.exec.FetchTask.initialize(FetchTask.java:80)
> ... 31 more
> {code}
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