github.com/dynastymasra/migrate/v4@v4.11.0/database/mongodb/examples/migrations/004_replace_field_value_from_another_field.down.json (about)

     1  [
     2      {
     3          "update": "users",
     4          "updates": [
     5              {
     6                  "q": {},
     7                  "u": {
     8                      "fullname": ""
     9                  },
    10                  "multi": true
    11              }
    12          ]
    13      }
    14  ]