{
  "db_name": "PostgreSQL",
  "query": "SELECT EXISTS(SELECT 1 FROM versions WHERE id=$1)",
  "describe": {
    "columns": [
      {
        "ordinal": 0,
        "name": "exists",
        "type_info": "Bool"
      }
    ],
    "parameters": {
      "Left": [
        "Int8"
      ]
    },
    "nullable": [
      null
    ]
  },
  "hash": "1ffce9b2d5c9fa6c8b9abce4bad9f9419c44ad6367b7463b979c91b9b5b4fea1"
}