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https://issues.apache.org/jira/browse/HIVE-6421?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14226659#comment-14226659
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Ashutosh Chauhan commented on HIVE-6421:
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yup. +1
> abs() should preserve precision/scale of decimal input
> ------------------------------------------------------
>
> Key: HIVE-6421
> URL: https://issues.apache.org/jira/browse/HIVE-6421
> Project: Hive
> Issue Type: Bug
> Components: UDF
> Reporter: Jason Dere
> Assignee: Jason Dere
> Attachments: HIVE-6421.1.txt, HIVE-6421.2.patch, HIVE-6421.3.patch
>
>
> {noformat}
> hive> describe dec1;
> OK
> c1 decimal(10,2) None
> hive> explain select c1, abs(c1) from dec1;
> ...
> Select Operator
> expressions: c1 (type: decimal(10,2)), abs(c1) (type:
> decimal(38,18))
> {noformat}
> Given that abs() is a GenericUDF it should be possible for the return type
> precision/scale to match the input precision/scale.
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