Hive運行時報如下錯誤：
Error: java.lang.RuntimeException: Error creating a batch
at org.apache.hadoop.hive.ql.io.orc.VectorizedOrcInputFormat$VectorizedOrcRecordReader.createValue(VectorizedOrcInputFormat.java:111)
at org.apache.hadoop.hive.ql.io.orc.VectorizedOrcInputFormat$VectorizedOrcRecordReader.createValue(VectorizedOrcInputFormat.java:49)
at org.apache.hadoop.hive.ql.io.CombineHiveRecordReader.createValue(CombineHiveRecordReader.java:94)
at org.apache.hadoop.hive.ql.io.CombineHiveRecordReader.createValue(CombineHiveRecordReader.java:43)
at org.apache.hadoop.hive.shims.HadoopShimsSecure$CombineFileRecordReader.createValue(HadoopShimsSecure.java:155)
at org.apache.hadoop.mapred.MapTask$TrackedRecordReader.createValue(MapTask.java:180)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:459)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:343)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:164)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1920)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: No type found for column type entry 46
at org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatchCtx.addScratchColumnsToBatch(VectorizedRowBatchCtx.java:604)
at org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatchCtx.createVectorizedRowBatch(VectorizedRowBatchCtx.java:339)
at org.apache.hadoop.hive.ql.io.orc.VectorizedOrcInputFormat$VectorizedOrcRecordReader.createValue(VectorizedOrcInputFormat.java:109)
這樣的錯誤是因爲orc表新增字段後，進行count導致的錯誤
在執行Hql前，加上set hive.vectorized.execution.enabled = false; 即可
如果是維護表，最好還是先創建一張新表，再把數據插入，hive表不建議在原表基礎上修改表結構