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Posted to issues@hive.apache.org by "Lefty Leverenz (JIRA)" <ji...@apache.org> on 2015/06/04 08:23:38 UTC
[jira] [Commented] (HIVE-10834) Support First_value()/last_value()
over x preceding and y preceding windowing
[ https://issues.apache.org/jira/browse/HIVE-10834?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14572246#comment-14572246 ]
Lefty Leverenz commented on HIVE-10834:
---------------------------------------
Doc note: This needs to be documented in the wiki for the 1.3.0 release.
* [Windowing and Analytics -- WINDOW clause | https://cwiki.apache.org/confluence/display/Hive/LanguageManual+WindowingAndAnalytics#LanguageManualWindowingAndAnalytics-WINDOWclause]
> Support First_value()/last_value() over x preceding and y preceding windowing
> -----------------------------------------------------------------------------
>
> Key: HIVE-10834
> URL: https://issues.apache.org/jira/browse/HIVE-10834
> Project: Hive
> Issue Type: Sub-task
> Components: PTF-Windowing
> Reporter: Aihua Xu
> Assignee: Aihua Xu
> Labels: TODOC1.3
> Fix For: 1.3.0
>
> Attachments: HIVE-10834.patch
>
>
> Currently the following query
> {noformat}
> select ts, f, first_value(f) over (partition by ts order by t rows between 2 preceding and 1 preceding) from over10k limit 100;
> {noformat}
> throws exception:
> {noformat}
> java.lang.RuntimeException: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row (tag=0) {"key":{"reducesinkkey0":"2013-03-01 09:11:58.703071","reducesinkkey1":-3},"value":{"_col3":0.83}}
> at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.reduce(ExecReducer.java:256)
> at org.apache.hadoop.mapred.ReduceTask.runOldReducer(ReduceTask.java:506)
> at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:447)
> at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:449)
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Hive Runtime Error while processing row (tag=0) {"key":{"reducesinkkey0":"2013-03-01 09:11:58.703071","reducesinkkey1":-3},"value":{"_col3":0.83}}
> at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.reduce(ExecReducer.java:244)
> ... 3 more
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: Internal Error: cannot generate all output rows for a Partition
> at org.apache.hadoop.hive.ql.udf.ptf.WindowingTableFunction.finishPartition(WindowingTableFunction.java:519)
> at org.apache.hadoop.hive.ql.exec.PTFOperator$PTFInvocation.finishPartition(PTFOperator.java:337)
> at org.apache.hadoop.hive.ql.exec.PTFOperator.process(PTFOperator.java:114)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:837)
> at org.apache.hadoop.hive.ql.exec.SelectOperator.process(SelectOperator.java:88)
> at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.reduce(ExecReducer.java:235)
> {noformat}
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