GitHub user vasia opened a pull request:

    https://github.com/apache/flink/pull/1862

    [FLINK-3640] Add support for SQL in DataSet programs

    This PR adds basic support for batch SQL queries embedded in Table API 
programs.
    In order to run a SQL query, a `DataSet` or `Table` needs to be registered 
in the `TableEnvironment` and then the query is executed using the `sql` method:
    
    ```
    val tEnv = getScalaTableEnvironment
    val t = getDataSet(env).toTable
    tEnv.registerTable("MyTable", t)
    val sqlQuery = "SELECT * FROM MyTable"
    val result = tEnv.sql(sqlQuery)
    ```
    The result of the `sql` method is a `Table` which can be used in subsequent 
Table API or SQL queries.

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

    $ git pull https://github.com/vasia/flink batch-sql

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

    https://github.com/apache/flink/pull/1862.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 #1862
    
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