[jira] [Commented] (FLINK-9928) Add LOG2 function for table/sql API

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

    [ https://issues.apache.org/jira/browse/FLINK-9928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16554105#comment-16554105 ] 

ASF GitHub Bot commented on FLINK-9928:
---------------------------------------

GitHub user yanghua opened a pull request:

    https://github.com/apache/flink/pull/6404

    [FLINK-9928] Add LOG2 function for table/sql API

    ## What is the purpose of the change
    
    *This pull request adds LOG2 function for table/sql API*
    
    ## Brief change log
    
      - *Add LOG2 function for table/sql API*
    
    ## Verifying this change
    
    This change is already covered by existing tests, such as *ScalarFunctionsTest#testLog2*.
    
    ## Does this pull request potentially affect one of the following parts:
    
      - Dependencies (does it add or upgrade a dependency): (yes / **no**)
      - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (yes / **no**)
      - The serializers: (yes / **no** / don't know)
      - The runtime per-record code paths (performance sensitive): (yes / **no** / don't know)
      - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes / **no** / don't know)
      - The S3 file system connector: (yes / **no** / don't know)
    
    ## Documentation
    
      - Does this pull request introduce a new feature? (**yes** / no)
      - If yes, how is the feature documented? (not applicable / **docs** / JavaDocs / not documented)


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

    $ git pull https://github.com/yanghua/flink FLINK-9928

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

    https://github.com/apache/flink/pull/6404.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 #6404
    
----
commit 1883e0cac63a4756523cc798a9fc150c0f2c298d
Author: yanghua <ya...@...>
Date:   2018-07-24T11:13:39Z

    [FLINK-9928] Add LOG2 function for table/sql API

----


> Add LOG2 function for table/sql API
> -----------------------------------
>
>                 Key: FLINK-9928
>                 URL: https://issues.apache.org/jira/browse/FLINK-9928
>             Project: Flink
>          Issue Type: New Feature
>          Components: Table API &amp; SQL
>            Reporter: vinoyang
>            Assignee: vinoyang
>            Priority: Minor
>              Labels: pull-request-available
>
> refer to : https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html#function_log2



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