Szehon Ho created HIVE-6477:
-------------------------------
Summary: Aggregation functions for tiny/smallint broken with
parquet
Key: HIVE-6477
URL: https://issues.apache.org/jira/browse/HIVE-6477
Project: Hive
Issue Type: Bug
Components: Serializers/Deserializers
Affects Versions: 0.13.0
Reporter: Szehon Ho
Assignee: Szehon Ho
Given the following table:
{noformat}
CREATE TABLE IF NOT EXISTS commontypesagg (
id int,
bool_col boolean,
tinyint_col tinyint,
smallint_col smallint,
int_col int,
bigint_col bigint,
float_col float,
double_col double,
date_string_col string,
string_col string)
PARTITIONED BY (year int, month int, day int)
STORED AS PARQUETFILE;
{noformat}
The following queries throws ClassCastException:
{noformat}
select count(tinyint_col), min(tinyint_col), max(tinyint_col), sum(tinyint_col)
from commontypesagg;
select count(smallint_col), min(smallint_col), max(smallint_col),
sum(smallint_col) from commontypesagg;
{noformat}
Exception is the following:
{noformat}
2014-01-29 14:02:11,381 INFO org.apache.hadoop.mapred.TaskStatus:
task-diagnostic-info for task attempt_201401290934_0006_m_000001_1 :
java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException:
Hive Runtime Error while processing row
{"id":null,"bool_col":null,"tinyint_col":1,"smallint_col":null,"int_col":null,"bigint_col":null,"float_col":null,"double_col":null,"date_string_col":null,"string_col":null,"year":"2009","month":"1"}
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:175)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:417)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
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:1548)
at org.apache.hadoop.mapred.Child.main(Child.java:262)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error
while processing row
{"id":null,"bool_col":null,"tinyint_col":1,"smallint_col":null,"int_col":null,"bigint_col":null,"float_col":null,"double_col":null,"date_string_col":null,"string_col":null,"year":"2009","month":"1"}
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:529)
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:157)
... 8 more
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException:
java.lang.ClassCastException: org.apache.hadoop.io.IntWritable cannot be cast
to java.lang.Byte
at
org.apache.hadoop.hive.ql.exec.GroupByOperator.processOp(GroupByOperator.java:796)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:844)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:87)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:844)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:91)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:504)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:844)
at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:519)
... 9 more
Caused by: java.lang.ClassCastException: org.apache.hadoop.io.IntWritable
cannot be cast to java.lang.Byte
at
org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaByteObjectInspector.get(JavaByteObjectInspector.java:40)
at
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.compare(ObjectInspectorUtils.java:666)
at
org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.compare(ObjectInspectorUtils.java:631)
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDAFMin$GenericUDAFMinEvaluator.merge(GenericUDAFMin.java:109)
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDAFMin$GenericUDAFMinEvaluator.iterate(GenericUDAFMin.java:96)
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator.aggregate(GenericUDAFEvaluator.java:183)
at
org.apache.hadoop.hive.ql.exec.GroupByOperator.updateAggregations(GroupByOperator.java:629)
at
org.apache.hadoop.hive.ql.exec.GroupByOperator.processHashAggr(GroupByOperator.java:826)
at
org.apache.hadoop.hive.ql.exec.GroupByOperator.processKey(GroupByOperator.java:723)
at
org.apache.hadoop.hive.ql.exec.GroupByOperator.processOp(GroupByOperator.java:791)
... 18 more
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