jolt specification : [{ "operation": "shift", "spec": { "@": "&", "data": { "*": { "id": { "@(1)": "idexist.[]" }}}}}] output :  { "root" : { "data" : [ { "name" : "a", "id" : "100" }, { "name" : "b", "id" : "101" }, { "name" : "c" } ] }, "idexist" : [ { "name" : "a", "id" : "100" }, { "name" : "b", "id" : "101" } ] } ... View more