[GitHub] flink pull request #6356: [FLINK-9790] [doc] Add documentation for UDF in SQ...

[xccui <gi...@git.apache.org>]

GitHub user xccui opened a pull request:

    https://github.com/apache/flink/pull/6356

    [FLINK-9790] [doc] Add documentation for UDF in SQL Client

    ## What is the purpose of the change
    
    This PR aims to add document for UDF in SQL Client.
    
    ## Brief change log
    
      - Add related document for SQL Client UDF in `sqlClient.md`.
      - Add an `incremental` parameter to the build script so that the build process can be more efficient.
    
    ## Verifying this change
    
    This change is a trivial rework / code cleanup without any test coverage.
    
    ## 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)
      - If yes, how is the feature documented? (docs)


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

    $ git pull https://github.com/xccui/flink FLINK-9790-udfdoc

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

    https://github.com/apache/flink/pull/6356.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 #6356
    
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commit da3a480c60b6a840bd5f558bb2bef43fe6822d33
Author: Xingcan Cui <xi...@...>
Date:   2018-07-17T16:22:26Z

    [FLINK-9790] [doc] Add documentation for UDF in SQL Client

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