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https://issues.apache.org/jira/browse/SPARK-23953?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timothy Chen resolved SPARK-23953.
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Resolution: Invalid
> 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
> Priority: Major
>
> 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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