pgroll/examples/19_create_orders_table.json

{
  "name": "19_create_orders_table",
  "operations": [
    {
      "create_table": {
        "name": "orders",
        "columns": [
          {
            "name": "id",
            "type": "serial",
            "pk": true
          },
          {
            "name": "user_id",
            "type": "integer",
            "references": {
              "name": "fk_users_id",
              "table": "users",
              "column": "id"
            }
          },
          {
            "name": "quantity",
            "type": "int"
          }
        ]
      }
    }
  ]
}