使用hive查询出现的问题

使用hive查询出现问题，如下：
库data：表：ocount 数据量600W左右

表结构
hive> desc ocount;
OK
count_id             string
user_id             string
count_type          string
dt                   string

dt分组查询
hive> select * from data.ocount group by dt;
20150908
20150909
20150910
20150911
20150913
20150914

我想统计count_type = 'ww'的数量。

1、可以正常跑出来数据：
select count(distinct count_id) from data.ocount where dt = 20150908 or dt = 20150909 or dt = 20150910 or dt = 20150911 or dt = 20150913 or dt = 20150914  and count_type = 'ww';

2、使用（其实跟上边的功能一样的）
select count(distinct count_id) from data.ocount where count_type = 'ww';

就会报错：
Diagnostic Messages for this Task:
Error: java.io.IOException: java.io.IOException: java.lang.RuntimeException: java.lang.ArrayIndexOutOfBoundsException: 8
      at org.apache.hadoop.hive.io.HiveIOExceptionHandlerChain.handleRecordReaderNextException(HiveIOExceptionHandlerChain.java:121)
      at org.apache.hadoop.hive.io.HiveIOExceptionHandlerUtil.handleRecordReaderNextException(HiveIOExceptionHandlerUtil.java:77)
      at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.doNextWithExceptionHandler(HadoopShimsSecure.java:273)
      at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.next(HadoopShimsSecure.java:183)
      at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.moveToNext(MapTask.java:198)
      at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.next(MapTask.java:184)
      at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:52)
      at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:430)
      at org.apache.hadoop.mapred.MapTask.run(MapTask.java:342)
      at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:168)
      at java.security.AccessController.doPrivileged(Native Method)
      at javax.security.auth.Subject.doAs(Subject.java:415)
      at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1594)
      at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:163)
Caused by: java.io.IOException: java.lang.RuntimeException: java.lang.ArrayIndexOutOfBoundsException: 8
      at org.apache.hadoop.hive.io.HiveIOExceptionHandlerChain.handleRecordReaderNextException(HiveIOExceptionHandlerChain.java:121)
      at org.apache.hadoop.hive.io.HiveIOExceptionHandlerUtil.handleRecordReaderNextException(HiveIOExceptionHandlerUtil.java:77)
      at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:352)
      at org.apache.hadoop.hive.ql.io.CombineHiveRecordReader.doNext(CombineHiveRecordReader.java:101)
      at org.apache.hadoop.hive.ql.io.CombineHiveRecordReader.doNext(CombineHiveRecordReader.java:41)
      at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.next(HiveContextAwareRecordReader.java:115)
      at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.doNextWithExceptionHandler(HadoopShimsSecure.java:271)
      ... 11 more
Caused by: java.lang.RuntimeException: java.lang.ArrayIndexOutOfBoundsException: 8
      at org.apache.hadoop.hive.ql.io.orc.VectorizedOrcInputFormat$VectorizedOrcRecordReader.next(VectorizedOrcInputFormat.java:95)
      at org.apache.hadoop.hive.ql.io.orc.VectorizedOrcInputFormat$VectorizedOrcRecordReader.next(VectorizedOrcInputFormat.java:49)
      at org.apache.hadoop.hive.ql.io.HiveContextAwareRecordReader.doNext(HiveContextAwareRecordReader.java:347)
      ... 15 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 8
      at org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatchCtx.addPartitionColsToBatch(VectorizedRowBatchCtx.java:565)
      at org.apache.hadoop.hive.ql.io.orc.VectorizedOrcInputFormat$VectorizedOrcRecordReader.next(VectorizedOrcInputFormat.java:90)
      ... 17 more

Container killed by the ApplicationMaster.
Container killed on request. Exit code is 143
Container exited with a non-zero exit code 143

FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask
MapReduce Jobs Launched:
Stage-Stage-1: Map: 52  Reduce: 3 Cumulative CPU: 76.47 sec HDFS Read: 13744249 HDFS Write: 0 FAIL
Total MapReduce CPU Time Spent: 1 minutes 16 seconds 470 msec

求教。