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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-8302) Support shift_left and shift_right in TableAPI
Date Sat, 28 Jul 2018 09:08:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-8302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16560671#comment-16560671
] 

ASF GitHub Bot commented on FLINK-8302:
---------------------------------------

xueyumusic opened a new pull request #6445: [FLINK-8302][Table API & SQL] Add SHIFT_LEFT
and SHIFT_RIGHT
URL: https://github.com/apache/flink/pull/6445
 
 
   ## What is the purpose of the change
   This PR is based on the previous closed and unfinished work https://github.com/apache/flink/pull/5202,
it adds shift left and right as core scalar operators in then code gen.
   
   The table api syntax is 21.shiftRight(1) and 21.shiftLeft(1)
   The sql syntax is SHIFT_RIGHT(21,1)
   
   ## Brief change log
     - *FunctionCatalog, expressionDsl and SHIFT_RIGHT(21,1)*
     - *CodeGenerator*
   
   ## Verifying this change
   
   This change added tests in ScalarOperatorsTest
   
   ## 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? (yes)
     - If yes, how is the feature documented? (docs)
   

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> Support shift_left and shift_right in TableAPI
> ----------------------------------------------
>
>                 Key: FLINK-8302
>                 URL: https://issues.apache.org/jira/browse/FLINK-8302
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API &amp; SQL
>            Reporter: DuBin
>            Priority: Major
>              Labels: features, pull-request-available
>             Fix For: 1.6.0
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> Add shift_left and shift_right support in TableAPI, shift_left(input, n) act as input
<< n, shift_right(input, n) act as input >> n.



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