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https://issues.apache.org/jira/browse/HIVE-7257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14051774#comment-14051774
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Szehon Ho commented on HIVE-7257:
---------------------------------
Committed to trunk. Thanks Wilbur for the contribution!
> UDF format_number() does not work on FLOAT types
> ------------------------------------------------
>
> Key: HIVE-7257
> URL: https://issues.apache.org/jira/browse/HIVE-7257
> Project: Hive
> Issue Type: Bug
> Reporter: Wilbur Yang
> Assignee: Wilbur Yang
> Fix For: 0.14.0
>
> Attachments: HIVE-7257.1.patch
>
>
> #1 Show the table:
> hive> describe ssga3;
> OK
> source string
> test float
> dt timestamp
> Time taken: 0.243 seconds
> #2 Run format_number on double and it works:
> hive> select format_number(cast(test as double),2) from ssga3;
> Total MapReduce jobs = 1
> Launching Job 1 out of 1
> Number of reduce tasks is set to 0 since there's no reduce operator
> Starting Job = job_201403131616_0009, Tracking URL =
> http://cdh5-1:50030/jobdetails.jsp?jobid=job_201403131616_0009
> Kill Command =
> /opt/cloudera/parcels/CDH-4.6.0-1.cdh4.6.0.p0.26/lib/hadoop/bin/hadoop job
> -kill job_201403131616_0009
> Hadoop job information for Stage-1: number of mappers: 1; number of reducers: > 0
> 2014-03-13 17:14:53,992 Stage-1 map = 0%, reduce = 0%
> 2014-03-13 17:14:59,032 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 1.47
> sec
> 2014-03-13 17:15:00,046 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 1.47
> sec
> 2014-03-13 17:15:01,056 Stage-1 map = 100%, reduce = 0%, Cumulative CPU 1.47
> sec
> 2014-03-13 17:15:02,067 Stage-1 map = 100%, reduce = 100%, Cumulative CPU
> 1.47 sec
> MapReduce Total cumulative CPU time: 1 seconds 470 msec
> Ended Job = job_201403131616_0009
> MapReduce Jobs Launched:
> Job 0: Map: 1 Cumulative CPU: 1.47 sec HDFS Read: 299 HDFS Write: 10 SUCCESS
> Total MapReduce CPU Time Spent: 1 seconds 470 msec
> OK
> 1.00
> 2.00
> Time taken: 16.563 seconds
> #3 Run format_number on float and it does not work
> hive> select format_number(test,2) from ssga3;
> Total MapReduce jobs = 1
> Launching Job 1 out of 1
> Number of reduce tasks is set to 0 since there's no reduce operator
> Starting Job = job_201403131616_0010, Tracking URL =
> http://cdh5-1:50030/jobdetails.jsp?jobid=job_201403131616_0010
> Kill Command =
> /opt/cloudera/parcels/CDH-4.6.0-1.cdh4.6.0.p0.26/lib/hadoop/bin/hadoop job
> -kill job_201403131616_0010
> Hadoop job information for Stage-1: number of mappers: 1; number of reducers: > 0
> 2014-03-13 17:20:21,158 Stage-1 map = 0%, reduce = 0%
> 2014-03-13 17:21:00,453 Stage-1 map = 100%, reduce = 100%
> Ended Job = job_201403131616_0010 with errors
> Error during job, obtaining debugging information...
> Job Tracking URL:
> http://cdh5-1:50030/jobdetails.jsp?jobid=job_201403131616_0010
> Examining task ID: task_201403131616_0010_m_000002 (and more) from job
> job_201403131616_0010
> Unable to retrieve URL for Hadoop Task logs. Does not contain a valid
> host:port authority: logicaljt
> Task with the most failures(4):
> Task ID:
> task_201403131616_0010_m_000000
> Diagnostic Messages for this Task:
> java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException:
> Hive Runtime Error while processing row {"source":null,"test":1.0,"dt":null}
> at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:159)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:50)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:417)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
> at org.apache.hadoop.mapred.Child$4.run(Child.java:268)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1438)
> at org.apache.hadoop.mapred.Child.main(Child.java:262)
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime
> Error while processing row {"source":null,"test":1.0,"dt":null}
> at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:675)
> at org.apache.hadoop.hive.ql.exec.ExecMapper.map(ExecMapper.java:141)
> ..
> FAILED: Execution Error, return code 2 from
> org.apache.hadoop.hive.ql.exec.MapRedTask
> MapReduce Jobs Launched:
> Job 0: Map: 1 HDFS Read: 0 HDFS Write: 0 FAIL
> Total MapReduce CPU Time Spent: 0 msec
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