[GitHub] spark pull request #18498: [SPARK-21266][R][PYTHON] Support schema a DDL-for...

[HyukjinKwon]

Github user HyukjinKwon commented on a diff in the pull request:

    https://github.com/apache/spark/pull/18498#discussion_r125168275
  
    --- Diff: python/pyspark/sql/functions.py ---
    @@ -1839,15 +1839,19 @@ def from_json(col, schema, options={}):
         string.
     
         :param col: string column in json format
    -    :param schema: a StructType or ArrayType of StructType to use when 
parsing the json column
    +    :param schema: a StructType or ArrayType of StructType to use when 
parsing the json column.
         :param options: options to control parsing. accepts the same options 
as the json datasource
     
    +    .. note:: Since Spark 2.3, the DDL-formatted string is also supported 
for ``schema``.
    --- End diff --
    
    Now, it looks as below:
    
    <img width="580" alt="2017-07-02 4 57 55" 
src="https://user-images.githubusercontent.com/6477701/27765087-ef86dbaa-5ee3-11e7-86ac-bbc5d61adc3c.png";>



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