Jason Dere created HIVE-6645:
--------------------------------
Summary: to_date()/to_unix_timestamp() fail with NPE if input is
null
Key: HIVE-6645
URL: https://issues.apache.org/jira/browse/HIVE-6645
Project: Hive
Issue Type: Bug
Components: UDF
Reporter: Jason Dere
Assignee: Jason Dere
{noformat}
hive> describe tab2;
Query ID = jdere_20140312185454_e3ed213e-8b3a-4963-b815-19965edad587
OK
c1 timestamp None
Time taken: 0.155 seconds, Fetched: 1 row(s)
hive> select * from tab2;
Query ID = jdere_20140312185454_8a009070-df79-45de-8642-e85668a378d7
OK
NULL
NULL
NULL
NULL
NULL
Time taken: 0.067 seconds, Fetched: 5 row(s)
hive> select to_unix_timestamp(c1) from tab2;
hive> select to_date(c1) from tab2;
{noformat}
Fails with errors like:
{noformat}
java.lang.Exception: java.lang.RuntimeException:
org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
processing row {"c1":null}
at
org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:401)
Caused by: java.lang.RuntimeException:
org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while
processing row {"c1":null}
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:195)
at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:54)
at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:429)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at
org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:233)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:680)
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error
while processing row {"c1":null}
at
org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:534)
at org.apache.hadoop.hive.ql.exec.mr.ExecMapper.map(ExecMapper.java:177)
... 10 more
Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Error evaluating
to_date(c1)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:84)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:790)
at
org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:92)
at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:790)
at
org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:524)
... 11 more
Caused by: java.lang.NullPointerException
at
org.apache.hadoop.hive.ql.udf.generic.GenericUDFDate.evaluate(GenericUDFDate.java:106)
at
org.apache.hadoop.hive.ql.exec.ExprNodeGenericFuncEvaluator._evaluate(ExprNodeGenericFuncEvaluator.java:166)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:77)
at
org.apache.hadoop.hive.ql.exec.ExprNodeEvaluator.evaluate(ExprNodeEvaluator.java:65)
at
org.apache.hadoop.hive.ql.exec.SelectOperator.processOp(SelectOperator.java:79)
... 15 more
{noformat}
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