NPE when using complex string UDF
---------------------------------
Key: HIVE-1553
URL: https://issues.apache.org/jira/browse/HIVE-1553
Project: Hadoop Hive
Issue Type: Bug
Components: UDF
Affects Versions: 0.5.0
Environment: CDH3B2 version on debian
Reporter: Wojciech Langiewicz
When executing this query: {code}select explode(split(city, "")) as char from
users;{code} I get NPE: {code}java.lang.NullPointerException
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDTFExplode.process(GenericUDTFExplode.java:70)
at
org.apache.hadoop.hive.ql.exec.UDTFOperator.processOp(UDTFOperator.java:98)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:386)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:598)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:81)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:386)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:598)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:43)
at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:386)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:598)
at
org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:347)
at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:171)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:358)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307)
at org.apache.hadoop.mapred.Child.main(Child.java:170){code}
But in case of this query:{code}select explode(split(city, "")) as char from
users where id = 234234;{code} NPE does not occur.
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