{
  "node_id": "mysql-87c2d9bc921643aabfd1b12b964ef557",
  "keywords": ["子查询", "subquery", "all"],
  "children": [],
  "export": [
    "all.json"
  ],
  "keywords_must": [
    [
      "mysql",
      "all"
    ]
  ],
  "keywords_forbid": [],
  "group": 1
}