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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4549) Test and document implicitly supported SQL functions
Date Thu, 15 Sep 2016 12:58:20 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15493229#comment-15493229

ASF GitHub Bot commented on FLINK-4549:

GitHub user twalthr opened a pull request:


    [FLINK-4549] [table] Test and document implicitly supported SQL functions

    Thanks for contributing to Apache Flink. Before you open your pull request, please take
the following check list into consideration.
    If your changes take all of the items into account, feel free to open your pull request.
For more information and/or questions please refer to the [How To Contribute guide](http://flink.apache.org/how-to-contribute.html).
    In addition to going through the list, please provide a meaningful description of your
    - [x] General
      - The pull request references the related JIRA issue ("[FLINK-XXX] Jira title text")
      - The pull request addresses only one issue
      - Each commit in the PR has a meaningful commit message (including the JIRA id)
    - [x] Documentation
      - Documentation has been added for new functionality
      - Old documentation affected by the pull request has been updated
      - JavaDoc for public methods has been added
    - [x] Tests & Build
      - Functionality added by the pull request is covered by tests
      - `mvn clean verify` has been executed successfully locally or a Travis build has passed
    This PR tests and documents all SQL functions that are currently supported. Things that
are not documented are not supposed to work.

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

    $ git pull https://github.com/twalthr/flink TableApiAllCalciteScalarFunctions

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


To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2500
commit 782fc7c09da25c44ecb61620acf2f7ce9d7077ad
Author: twalthr <twalthr@apache.org>
Date:   2016-09-02T09:00:09Z

    [FLINK-4549] [table] Test and document implicitly supported SQL functions


> Test and document implicitly supported SQL functions
> ----------------------------------------------------
>                 Key: FLINK-4549
>                 URL: https://issues.apache.org/jira/browse/FLINK-4549
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table API & SQL
>            Reporter: Timo Walther
>            Assignee: Timo Walther
> Calcite supports many SQL functions by translating them into {{RexNode}} s. However,
SQL functions like {{NULLIF}}, {{OVERLAPS}} are neither tested nor document although supported.
> These functions should be tested and added to the documentation. We could adopt parts
from the Calcite documentation.

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