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From "Csaba Skrabak (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-2048) change to_char() function to use HALF_UP rounding mode
Date Fri, 14 Jul 2017 13:36:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-2048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16087322#comment-16087322
] 

Csaba Skrabak commented on PHOENIX-2048:
----------------------------------------

[~elserj] [~asinghal] [~enis], do you think we need to do this in a configurable way?

> change to_char() function to use HALF_UP rounding mode
> ------------------------------------------------------
>
>                 Key: PHOENIX-2048
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2048
>             Project: Phoenix
>          Issue Type: Improvement
>    Affects Versions: verify
>            Reporter: Jonathan Leech
>            Priority: Minor
>             Fix For: 4.12.0
>
>         Attachments: phoenix-2048.patch
>
>
> to_char() function uses the default rounding mode in java DecimalFormat, which is a strange
one called HALF_EVEN, which rounds a '5' in the last position either up or down depending
on the preceding digit. 
> Change it to HALF_UP so it rounds the same way as the round() function does, or provide
a way to override the behavior; e.g. globally or as a client config, or an argument to the
to_char() function.



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