{
  "db_name": "PostgreSQL",
  "query": "UPDATE topology_runs\n         SET status = 'running', started_at = COALESCE(started_at, now()), updated_at = now()\n         WHERE id = (\n             SELECT id FROM topology_runs\n             WHERE status = 'queued'\n             ORDER BY created_at\n             FOR UPDATE SKIP LOCKED\n             LIMIT 1\n         )\n         RETURNING id, workspace_id, task, graph, checkpoint, last_event_id",
  "describe": {
    "columns": [
      {
        "ordinal": 0,
        "name": "id",
        "type_info": "Uuid"
      },
      {
        "ordinal": 1,
        "name": "workspace_id",
        "type_info": "Uuid"
      },
      {
        "ordinal": 2,
        "name": "task",
        "type_info": "Text"
      },
      {
        "ordinal": 3,
        "name": "graph",
        "type_info": "Jsonb"
      },
      {
        "ordinal": 4,
        "name": "checkpoint",
        "type_info": "Jsonb"
      },
      {
        "ordinal": 5,
        "name": "last_event_id",
        "type_info": "Int8"
      }
    ],
    "parameters": {
      "Left": []
    },
    "nullable": [
      false,
      false,
      false,
      true,
      true,
      false
    ]
  },
  "hash": "b1da590a84e9d2c84fe3e6683c7566a94be4496117c2458a21428b356e45e911"
}