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https://issues.apache.org/jira/browse/SPARK-31106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17055757#comment-17055757
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Rakesh Raushan commented on SPARK-31106:
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I am working on it.
> Support IS_JSON
> ---------------
>
> Key: SPARK-31106
> URL: https://issues.apache.org/jira/browse/SPARK-31106
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 3.1.0
> Reporter: Rakesh Raushan
> Priority: Major
>
> Currently, null is returned when we come across invalid json. We should
> either throw an exception for invalid json or false should be returned, like
> in other DBMSs. Like in `json_array_length` function we need to return NULL
> for null array. So this might confuse users.
>
> DBMSs supporting this functions are :
> * MySQL
> * SQL Server
> * Sqlite
> * MariaDB
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