How to create new index from old index fields

Elastic Stack Elasticsearch
1

i'm trying to create new index with data from the existing index , could you suggest me the best approach to do that.

EXISTING SAMPLE INDEX STRUCTURE (INDEX-1):
{
"name": "arun",
"my_list: [ "john", "peter", "julie"]
}

RESULT NEW INDEX STRUCTURE (INDEX-2):
{
"name": "john",
"my_list: [ "john", "peter", "julie"]
}
{
"name": "peter",
"my_list: [ "john", "peter", "julie"]
}
{
"name": "julie",
"my_list: [ "john", "peter", "julie"]
}

basically i want all of the my_list in INDEX1 needs to be individual document in INDEX2.

2

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