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From "N Campbell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5460) invalid offsets in lag lead should return an exception (per ISO-SQL)
Date Sun, 06 Oct 2013 16:31:43 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13787673#comment-13787673
] 

N Campbell commented on HIVE-5460:
----------------------------------

You would need to go to the ISO web site 
http://www.iso.org/iso/home/store/catalogue_ics/catalogue_detail_ics.htm?csnumber=53681

> invalid offsets in lag lead should return an exception (per ISO-SQL) 
> ---------------------------------------------------------------------
>
>                 Key: HIVE-5460
>                 URL: https://issues.apache.org/jira/browse/HIVE-5460
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 0.11.0
>            Reporter: N Campbell
>            Assignee: Edward Capriolo
>            Priority: Minor
>
> ISO-SQL 2012 defines how lag and lead should behave when invalid offsets are provided
to the functions.
> i.e. select tint.rnum,tint.cint, lag( tint.cint, -100 )  over ( order by tint.rnum) from
tint tint 
> Instead of a meaningful error (as other vendors will emit) you get 
> Error: Query returned non-zero code: 2, cause: FAILED: Execution Error, return code 2
from org.apache.hadoop.hive.ql.exec.MapRedTask
> SQLState:  08S01
> ErrorCode: 2



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