Timothy Chen created SPARK-23953:
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Summary: Add get_json_scalar function
Key: SPARK-23953
URL: https://issues.apache.org/jira/browse/SPARK-23953
Project: Spark
Issue Type: New Feature
Components: SQL
Affects Versions: 2.3.0
Reporter: Timothy Chen
Besides get_json_object which returns a JSON string in a return type, we should
add a function "get_json_scalar" that returns a scalar type assuming the path
maps to a scalar (boolean, number, string or null). It returns null when the
path points to a object or array structure
This is also in Presto (https://prestodb.io/docs/current/functions/json.html).
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