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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GEARPUMP-217) Add SQL support
Date Wed, 26 Jul 2017 02:54:00 GMT

    [ https://issues.apache.org/jira/browse/GEARPUMP-217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16101099#comment-16101099
] 

ASF GitHub Bot commented on GEARPUMP-217:
-----------------------------------------

Github user codecov-io commented on the issue:

    https://github.com/apache/incubator-gearpump/pull/201
  
    # [Codecov](https://codecov.io/gh/apache/incubator-gearpump/pull/201?src=pr&el=h1)
Report
    > :exclamation: No coverage uploaded for pull request base (`sql@d089902`). [Click
here to learn what that means](https://docs.codecov.io/docs/error-reference#section-missing-base-commit).
    > The diff coverage is `90%`.
    
    
    
    ```diff
    @@          Coverage Diff           @@
    ##             sql     #201   +/-   ##
    ======================================
      Coverage       ?   71.72%           
    ======================================
      Files          ?      189           
      Lines          ?     6104           
      Branches       ?      542           
    ======================================
      Hits           ?     4378           
      Misses         ?     1726           
      Partials       ?        0
    ```
    



> Add SQL support 
> ----------------
>
>                 Key: GEARPUMP-217
>                 URL: https://issues.apache.org/jira/browse/GEARPUMP-217
>             Project: Apache Gearpump
>          Issue Type: New Feature
>          Components: streaming
>    Affects Versions: 0.8.1
>            Reporter: Manu Zhang
>            Assignee: Buddhi Ayesha
>              Labels: gsoc2017, mentor
>
> SQL support will allow those unfamiliar with Scala/Java to use Gearpump. I propose to
build SQL layer with Apache Calcite because
> 1. It has done the hard job of parsing, translating logical plan to physical plan and
optimizing.
> 2. It is under active development and has a great community.
> 3. It's proved to be a good solution since Apache Storm, Apache Flink and Apache Samza
all build their Streaming SQL with Apache Calcite
> Note SQL here actually means Streaming SQL dialects supported by Calcite (check reference
1 and 2). Please checkout reference 3 for an example implementation. 
> The physical plan will be translated to Gearpump high level DSL.
> References:
> 1. http://www.slideshare.net/julianhyde/streaming-sql
> 2. https://calcite.apache.org/docs/stream.html
> 3. https://github.com/milinda/samza-sql



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