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Posted to issues@hive.apache.org by "Prasanth Jayachandran (JIRA)" <ji...@apache.org> on 2018/06/27 01:03:00 UTC

[jira] [Commented] (HIVE-20004) Wrong scale used by ConvertDecimal64ToDecimal results in incorrect results

    [ https://issues.apache.org/jira/browse/HIVE-20004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16524408#comment-16524408 ] 

Prasanth Jayachandran commented on HIVE-20004:
----------------------------------------------

Reserving a slot in precommit queue. Will update the patch with shortened test case for this issue later tonight. 

cc/ [~mmccline]

> Wrong scale used by ConvertDecimal64ToDecimal results in incorrect results
> --------------------------------------------------------------------------
>
>                 Key: HIVE-20004
>                 URL: https://issues.apache.org/jira/browse/HIVE-20004
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 3.1.0, 3.0.1, 4.0.0
>            Reporter: Prasanth Jayachandran
>            Assignee: Prasanth Jayachandran
>            Priority: Critical
>         Attachments: HIVE-20004.1.patch
>
>
> ConvertDecimal64ToDecimal uses scale from output column vector which results in incorrect results.
> Input: decimal(8,1) Output: decimal(9,2)
> Input value: 963.8 gets converted to 96.38 which is wrong. The scale should not change this case (value should be 963.8 even after the conversion). 



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