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https://issues.apache.org/jira/browse/SPARK-31009?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved SPARK-31009.
-----------------------------------
Fix Version/s: 3.1.0
Resolution: Fixed
Issue resolved by pull request 27836
[https://github.com/apache/spark/pull/27836]
> Support json_object_keys function
> ---------------------------------
>
> Key: SPARK-31009
> URL: https://issues.apache.org/jira/browse/SPARK-31009
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: Rakesh Raushan
> Assignee: Rakesh Raushan
> Priority: Major
> Fix For: 3.1.0
>
>
> This function will return all the keys from outer json object.
>
> PostgreSQL -> [https://www.postgresql.org/docs/9.3/functions-json.html]
> Mysql ->
> [https://dev.mysql.com/doc/refman/8.0/en/json-function-reference.html]
> MariaDB -> [https://mariadb.com/kb/en/json-functions/]
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