[jira] [Commented] (HIVE-17682) Vectorization: IF stmt produces wrong results

[Matt McCline (JIRA)]

    [ 
https://issues.apache.org/jira/browse/HIVE-17682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16190252#comment-16190252
 ] 

Matt McCline commented on HIVE-17682:
-------------------------------------

Thanks to [~gopalv] for coming up with a very small test case:

{noformat}
drop table if exists foo;
create temporary table foo (x int, y int) stored as orc;
insert into foo values(1,1),(2,NULL),(3,1);
select x, IF(x > 0,y,0) from foo order by x;
{noformat}


> Vectorization: IF stmt produces wrong results
> ---------------------------------------------
>
>                 Key: HIVE-17682
>                 URL: https://issues.apache.org/jira/browse/HIVE-17682
>             Project: Hive
>          Issue Type: Bug
>          Components: Hive
>    Affects Versions: 3.0.0
>            Reporter: Matt McCline
>            Assignee: Matt McCline
>            Priority: Critical
>             Fix For: 3.0.0
>
>
> A query using with a vectorized IF(condition, thenExpr, elseExpr) function 
> can produce wrong results.



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