[HIVE-6491] ClassCastException in AbstractParquetMapInspector

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Fix Version/s: 0.13.0
• Component/s: File Formats

Environment

cdh5-beta2, trunk

• Assignee: Unassigned
• Reporter: Andrey Stepachev
• Created: 24/Feb/14 11:30
• Updated: 22/Mar/14 06:28
• Resolved: 08/Mar/14 13:13

Description

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

final StandardParquetHiveMapInspector other = (StandardParquetHiveMapInspector) obj;

Such conversion leads to class cast exception in case of DeepParquetHiveMapInspector.

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

Issue Links

• duplicates: HIVE-6575 select * fails on parquet table with map datatype