{ "node_id": "mysql-73bfbd883511436c85130b71fa108038",
"keywords": ["inner", "join", "连接查询"],
"children": [],
"export": [
"inner_join_desc.json",
"join_self.json" ],
"keywords_must": [
[ "mysql", "inner join" ]
],
"keywords_forbid": [],
"group": 1
}