[jira] [Assigned] (PHOENIX-2048) change to_char() function to use HALF_UP rounding mode

["Csaba Skrabak (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-2048?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Csaba Skrabak reassigned PHOENIX-2048:
--------------------------------------

    Assignee: Csaba Skrabak

> 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
>            Assignee: Csaba Skrabak
>            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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