Revision 1328157

HIVE-2958 [jira] GROUP BY causing ClassCastException [LazyDioInteger cannot be
cast LazyInteger]
(Navis Ryu via Ashutosh Chauhan)

Summary:
DPAL-1111 GROUP BY causing ClassCastException [LazyDioInteger cannot be cast
LazyInteger]

This relates to https://issues.apache.org/jira/browse/HIVE-1634.

The following work fine:

CREATE EXTERNAL TABLE tim_hbase_occurrence (
  id int,
  scientific_name string,
  data_resource_id int
) STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler' WITH
SERDEPROPERTIES (
  "hbase.columns.mapping" = ":key#b,v:scientific_name#s,v:data_resource_id#b"
) TBLPROPERTIES(
  "hbase.table.name" = "mini_occurrences",
  "hbase.table.default.storage.type" = "binary"
);
SELECT * FROM tim_hbase_occurrence LIMIT 3;
SELECT * FROM tim_hbase_occurrence WHERE data_resource_id=1081 LIMIT 3;

However, the following fails:

SELECT data_resource_id, count(*) FROM tim_hbase_occurrence GROUP BY
data_resource_id;

The error given:

0 TS
2012-04-17 16:58:45,693 INFO org.apache.hadoop.hive.ql.exec.MapOperator:
Initialization Done 7 MAP
2012-04-17 16:58:45,714 INFO org.apache.hadoop.hive.ql.exec.MapOperator:
Processing alias tim_hbase_occurrence for file
hdfs://c1n2.gbif.org/user/hive/warehouse/tim_hbase_occurrence
2012-04-17 16:58:45,714 INFO org.apache.hadoop.hive.ql.exec.MapOperator: 7
forwarding 1 rows
2012-04-17 16:58:45,714 INFO org.apache.hadoop.hive.ql.exec.TableScanOperator: 0
forwarding 1 rows
2012-04-17 16:58:45,716 INFO org.apache.hadoop.hive.ql.exec.SelectOperator: 1
forwarding 1 rows
2012-04-17 16:58:45,723 FATAL ExecMapper:
org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
processing row {"id":1444,"scientific_name":null,"data_resource_id":1081}
	at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:548)
	at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:143)
	at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
	at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:391)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:325)
	at org.apache.hadoop.mapred.Child$4.run(Child.java:270)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:396)
	at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1157)
	at org.apache.hadoop.mapred.Child.main(Child.java:264)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException:
java.lang.ClassCastException:
org.apache.hadoop.hive.serde2.lazydio.LazyDioInteger cannot be cast to
org.apache.hadoop.hive.serde2.lazy.LazyInteger
	at
org.apache.hadoop.hive.ql.exec.GroupByOperator.processOp(GroupByOperator.java:737)
	at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:471)
	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:762)
	at
org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:84)
	at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:471)
	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:762)
	at
org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:83)
	at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:471)
	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:762)
	at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:529)
	... 9 more
Caused by: java.lang.ClassCastException:
org.apache.hadoop.hive.serde2.lazydio.LazyDioInteger cannot be cast to
org.apache.hadoop.hive.serde2.lazy.LazyInteger
	at
org.apache.hadoop.hive.serde2.lazy.objectinspector.primitive.LazyIntObjectInspector.copyObject(LazyIntObjectInspector.java:43)
	at
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.copyToStandardObject(ObjectInspectorUtils.java:239)
	at
org.apache.hadoop.hive.ql.exec.KeyWrapperFactory$ListKeyWrapper.deepCopyElements(KeyWrapperFactory.java:150)
	at
org.apache.hadoop.hive.ql.exec.KeyWrapperFactory$ListKeyWrapper.deepCopyElements(KeyWrapperFactory.java:142)
	at
org.apache.hadoop.hive.ql.exec.KeyWrapperFactory$ListKeyWrapper.copyKey(KeyWrapperFactory.java:119)
	at
org.apache.hadoop.hive.ql.exec.GroupByOperator.processHashAggr(GroupByOperator.java:750)
	at
org.apache.hadoop.hive.ql.exec.GroupByOperator.processOp(GroupByOperator.java:722)
	... 18 more

Test Plan: EMPTY

Reviewers: JIRA, ashutoshc

Reviewed By: ashutoshc

Differential Revision: https://reviews.facebook.net/D2871