Failed to reindex nested fields

Elastic Stack Elasticsearch
1

I have an index has

{
  "mappings":{
       "properties": {
            "Schema": {
                    "type":"nested",
                    "properties":{
                    	"Column_Name": {"type":"keyword"}
                    }
            }
       }
  }
}

I tried to use reindex to change Schema.Column_Name to Schema.Attribute_Name with the following script:

"script":{
		"inline": "ctx._source['Schema.Column_Name'] = ctx._source.remove('Schema.Attribute_Name')"
	}

But I got error

 "type": "mapper_parsing_exception",
 "reason": "Cannot add a value for field [Schema.Column_Name] since one of the intermediate objects is mapped as a nested object: [Schema]"

Could someone help? Whether reindex of a nested field is supported?

2

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