{
  "node_id": "mysql-6c6789b86f714acaa76467fdf9623191",
  "keywords": ["exists"],
  "children": [],
  "export": [
    "exists.json"
  ],
  "keywords_must": [
    [
      "mysql",
      "exists"
    ]
  ],
  "keywords_forbid": [
    "not exists"
  ],
  "group": 1
}