[jira] [Commented] (FLINK-8821) Fix BigDecimal divide in AvgAggFunction

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-8821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16381828#comment-16381828 ] 

ASF GitHub Bot commented on FLINK-8821:
---------------------------------------

GitHub user Xpray opened a pull request:

    https://github.com/apache/flink/pull/5608

    [FLINK-8821][TableAPI && SQL] Fix BigDecimal divide in AvgAggFunction

    ## What is the purpose of the change
    fix BigDecimal divide issue in AvgAggFunction
    
    ## Brief change log
    
      - *set MathContext  to DecimalAvgAggFunction*
    
    ## Verifying this change
    
    This change is already covered by existing tests, such as *(please describe tests)*.
    org.apache.flink.table.runtime.aggfunctions.AvgFunctionTest
    
    ## Does this pull request potentially affect one of the following parts:
    
      - Dependencies (does it add or upgrade a dependency):
         no
      - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: 
         no
      - The serializers: 
         no
      - The runtime per-record code paths (performance sensitive): 
         no
      - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: 
        no
      - The S3 file system connector: 
        no
    ## Documentation
    
      - Does this pull request introduce a new feature? 
        no

You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/Xpray/flink FLINK-8821

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/flink/pull/5608.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #5608
    
----
commit 6de872e7d562354f65accf6eaeb7604f46cf7352
Author: Xpray <le...@...>
Date:   2018-03-01T10:50:13Z

    [FLINK-8821][TableAPI && SQL] Fix BigDecimal divide in AvgAggFunction

----


> Fix BigDecimal divide in AvgAggFunction
> ---------------------------------------
>
>                 Key: FLINK-8821
>                 URL: https://issues.apache.org/jira/browse/FLINK-8821
>             Project: Flink
>          Issue Type: Bug
>          Components: Table API &amp; SQL
>            Reporter: Ruidong Li
>            Assignee: Ruidong Li
>            Priority: Major
>
> The DecimalAvgAggFunction lacks precision protection



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