Burak Yavuz created SPARK-30324:
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             Summary: Simplify API for JSON access in DataFrames/SQL
                 Key: SPARK-30324
                 URL: https://issues.apache.org/jira/browse/SPARK-30324
             Project: Spark
          Issue Type: New Feature
          Components: SQL
    Affects Versions: 2.4.4
            Reporter: Burak Yavuz


get_json_object() is a UDF to parse JSON fields. It is verbose and hard to use, 
e.g. I wasn't expecting the path to a field to have to start with "$.". 

We can simplify all of this when a column is of StringType, and a nested field 
is requested. This API sugar will in the query planner be rewritten asĀ 
get_json_object.

This nested access can then be extended in the future to other semi-structured 
formats.



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