Copy data of a field in another field in ElasticSearch-CodePudding

I'm using following technique to copy one field into another in ElasticSearch 7.9.2

localhost:9200/your_index/_update_by_query

{
    "query" : {
        "match" : {
               "product_name": "iphone 9"
        }
    },
    "script" : "ctx._source.company = ctx._source.make;"
}

following error is occurred

"type": "Parsing exception"
"reason": "Unknown key for a Start_Object in [Script]"

I followed these threads Thread 1 Thread 2

CodePudding user response：

Following code executed successfully.

localhost:9200/your_index/_update_by_query

{
    "script" : {
          "lang": "painless",
          "source": "ctx._source.company = ctx._source.make;"
    },
    "query" : {
        "match" : {
               "product_name": "iphone 9"
        }
    }
}