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https://issues.apache.org/jira/browse/SPARK-31686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17106084#comment-17106084
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Hyukjin Kwon commented on SPARK-31686:
--------------------------------------
Yes, you don't know the output type before actually parsing. The type should be
known before the execution. It's by design
> Return of String instead of array in function get_json_object
> -------------------------------------------------------------
>
> Key: SPARK-31686
> URL: https://issues.apache.org/jira/browse/SPARK-31686
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.5
> Environment: {code:json}
> // code placeholder
> {
> customer:{
> addesses:[ { {code}
> location : arizona
> }
> ]
> }
> }
> get_json_object(string(customer),'$addresses[*].location')
> return "arizona"
> result expected should be
> ["arizona"]
> Reporter: Touopi Touopi
> Priority: Major
>
> when we selecting a node of a json object that is array,
> When the array contains One element , the get_json_object return a String
> with " characters instead of an array of One element.
>
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