Hello @Sadique Manzar! Sorry my huge delay, I've been busy these days. So, I took a look at your orc files and didn't see any orc file under the hdfs://hadoop/apps/hive/warehouse/sample.db/TABLEB. Do you mind to run the following command and share with me again? hdfs dfs -ls -R hdfs://hadoop/apps/hive/warehouse/sample.db/TABLEB/ Thanks. ... View more

@Sadique Manzar Seems like you are hitting HIVE-18258, try setting hive.vectorized.execution.reduce.groupby.enabled to false. Or, contact Hortonworks support for HotFix. ... View more