Wang Yan created HIVE-20318: ------------------------------- Summary: NullPointerException when union with lateral view Key: HIVE-20318 URL: https://issues.apache.org/jira/browse/HIVE-20318 Project: Hive Issue Type: Bug Components: Query Processor Affects Versions: 2.3.2 Environment: Run on MR, hadoop 2.7.3 Reporter: Wang Yan
The following sql throws NullPointerException. This sql is not table/data specific and can be run directly. WITH t1 AS ( SELECT 0 AS c1 ), t2 AS ( SELECT 0 AS c1 FROM ( SELECT COLLECT_SET('line') AS c2 ) t3 lateral VIEW explode(ARRAY("a")) er AS c3 )SELECT c1FROM t1UNION ALLSELECT c1FROM t2 This is the exception. 2018-04-20 01:53:50,845 WARN [Thread-5] org.apache.hadoop.mapred.YarnChild: Exception running child : java.lang.RuntimeException: Hive Runtime Error while closing operators at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.close(ExecMapper.java:207) at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:61) at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:453) 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:1698) at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:158) Caused by: java.lang.NullPointerException at org.apache.hadoop.hive.conf.HiveConf.getVar(HiveConf.java:3901) at org.apache.hadoop.hive.ql.exec.FileSinkOperator.closeOp(FileSinkOperator.java:1020) at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:697) at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:711) at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:711) at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:711) at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.close(ExecMapper.java:189) ... 8 more -- This message was sent by Atlassian JIRA (v7.6.3#76005)