[GitHub] spark pull request #23199: [SPARK-26245][SQL] Add Float literal

[wangyum]

GitHub user wangyum opened a pull request:

    https://github.com/apache/spark/pull/23199

    [SPARK-26245][SQL] Add Float literal

    ## What changes were proposed in this pull request?
    
    This PR adds parser support for `Float` literals.
    
    Hive support this feature:
    
![image](https://user-images.githubusercontent.com/5399861/49337788-e20cac80-f653-11e8-89c4-0fafa4037a82.png)
    
    ## How was this patch tested?
    
    unit tests


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

    $ git pull https://github.com/wangyum/spark SPARK-26245

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

    https://github.com/apache/spark/pull/23199.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 #23199
    
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commit 57faa4160365e4ec7ef9847861882b469d4953d6
Author: Yuming Wang <yumwang@...>
Date:   2018-12-02T08:56:56Z

    Add Float literal

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