tree.json

{
  "pg": {
    "node_id": "pg-d8b0b9aded4c4cc0b2085d6a7c5611c7",
    "keywords": [],
    "children": [
      {
        "PostgreSQL初阶": {
          "node_id": "pg-f1c160affc45417a9c5fff7dc4be448a",
          "keywords": [],
          "children": [
            {
              "基本概念": {
                "node_id": "pg-1aad17890736469a8b2f61a36dfe41db",
                "keywords": [],
                "children": [
                  {
                    "关系型数据库": {
                      "node_id": "pg-11d131b2d01b40be90b23f096d4852cc",
                      "keywords": [
                        "关系型数据库",
                        "database",
                        "relational",
                        "rdbms"
                      ],
                      "children": []
                    }
                  },
                  {
                    "服务器和客户端": {
                      "node_id": "pg-cf0e5cb243a247e2a0b812c5798cdba4",
                      "keywords": [
                        "server",
                        "client",
                        "数据库服务器",
                        "数据库客户端"
                      ],
                      "children": []
                    }
                  }
                ]
              }
            },
            {
              "安装和使用": {
                "node_id": "pg-d95edf2d942b45d781e112be785ce260",
                "keywords": [],
                "children": [
                  {
                    "安装": {
                      "node_id": "pg-940afa6d71af44f689011ded8fd91a98",
                      "keywords": [
                        "安装",
                        "PostgreSQL"
                      ],
                      "children": []
                    }
                  },
                  {
                    "登录": {
                      "node_id": "pg-586916fe52e245efb399ae862378f87f",
                      "keywords": [
                        "登录",
                        "身份验证",
                        "授权"
                      ],
                      "children": []
                    }
                  },
                  {
                    "使用": {
                      "node_id": "pg-c252ff4b0e7f4163837c9b6f81678505",
                      "keywords": [
                        "login",
                        "connect"
                      ],
                      "children": []
                    }
                  }
                ]
              }
            },
            {
              "查询数据": {
                "node_id": "pg-30f905f73a574151994d6d7f58d8a20d",
                "keywords": [],
                "children": [
                  {
                    "psql": {
                      "node_id": "pg-ee5c6d4a073b45a7995ba351ab9de46e",
                      "keywords": [
                        "sql",
                        "psql",
                        " 数据库客户端"
                      ],
                      "children": []
                    }
                  },
                  {
                    "SQL基本语法": {
                      "node_id": "pg-dca8da7637f94ded91a1871daa51746e",
                      "keywords": [
                        "语法",
                        "select"
                      ],
                      "children": []
                    }
                  },
                  {
                    "SQL、DML和DDL": {
                      "node_id": "pg-b0f366abe12e41b0a9672d317e556662",
                      "keywords": [
                        "DML",
                        "insert",
                        "update",
                        "delete"
                      ],
                      "children": []
                    }
                  }
                ]
              }
            }
          ]
        }
      },
      {
        "PostgreSQL中阶": {
          "node_id": "pg-fc32585f4136497ea9be2d057d4aeada",
          "keywords": [],
          "children": [
            {
              "基本结构": {
                "node_id": "pg-100e256ddb2e43ea8d68558e73522819",
                "keywords": [],
                "children": [
                  {
                    "表": {
                      "node_id": "pg-806d3976e8764d4f8e26c197c53d45a8",
                      "keywords": [
                        "表",
                        "table"
                      ],
                      "children": []
                    }
                  },
                  {
                    "函数": {
                      "node_id": "pg-f371b91ef63a4ce08f80b92bc8580196",
                      "keywords": [
                        "函数",
                        "function"
                      ],
                      "children": []
                    }
                  },
                  {
                    "用户和权限": {
                      "node_id": "pg-cb942198b3a84d5398d73d558a241543",
                      "keywords": [
                        "role",
                        "login",
                        "user",
                        "用户",
                        "角色",
                        "权限",
                        "privilege"
                      ],
                      "children": []
                    }
                  },
                  {
                    "索引和约束": {
                      "node_id": "pg-eeb777ca54434480a06bfe7fc5e7d3ca",
                      "keywords": [
                        "索引",
                        " 约束",
                        "constraints",
                        "index"
                      ],
                      "children": []
                    }
                  },
                  {
                    " 触发器": {
                      "node_id": "pg-a0cb78d68d814f5e935b41922b88e085",
                      "keywords": [
                        "trigger",
                        "触发器"
                      ],
                      "children": []
                    }
                  },
                  {
                    "数据库扩展": {
                      "node_id": "pg-d2b6e840cfad44a2aa357cfee56d437d",
                      "keywords": [
                        "数据库扩展",
                        "数据库插件",
                        "extension"
                      ],
                      "children": []
                    }
                  }
                ]
              }
            },
            {
              "服务端编程": {
                "node_id": "pg-c99d8673d47444988c37f6dd3abb1e63",
                "keywords": [],
                "children": [
                  {
                    "聚合和分组": {
                      "node_id": "pg-3a87b0dbead643e58f1ff1d93acd80cc",
                      "keywords": [
                        "group by",
                        "分组"
                      ],
                      "children": []
                    }
                  },
                  {
                    "连接查询": {
                      "node_id": "pg-458d5d590ea64188847b45d8e6343f83",
                      "keywords": [
                        "join",
                        "连接查询"
                      ],
                      "children": []
                    }
                  },
                  {
                    "子查询": {
                      "node_id": "pg-55fd213f919d411c9b572241c4bb7807",
                      "keywords": [
                        "子查询",
                        "subquery"
                      ],
                      "children": []
                    }
                  },
                  {
                    "分页查询": {
                      "node_id": "pg-69d3a1c646004e1da497fed2af57806c",
                      "keywords": [
                        "分页",
                        "limit",
                        "offset"
                      ],
                      "children": []
                    }
                  },
                  {
                    "CTE": {
                      "node_id": "pg-6beb084543204f4f9d87930c0a6c5707",
                      "keywords": [
                        "common table expression",
                        "cte",
                        "recursive"
                      ],
                      "children": []
                    }
                  },
                  {
                    "过程化编程": {
                      "node_id": "pg-eb4048b7dfd3469f8049330ba78427b5",
                      "keywords": [
                        "plsql",
                        "过程化"
                      ],
                      "children": []
                    }
                  },
                  {
                    "DDL": {
                      "node_id": "pg-0378bcd60ccd4dfebcfead92abbdd673",
                      "keywords": [
                        "创建表",
                        "授权",
                        "ddl"
                      ],
                      "children": []
                    }
                  }
                ]
              }
            }
          ]
        }
      },
      {
        "PostgreSQL高阶": {
          "node_id": "pg-c9c7629c52064d8780cbd4dc14dbe351",
          "keywords": [],
          "children": [
            {
              "集群和复制": {
                "node_id": "pg-328b09c201b6414d83228970591910af",
                "keywords": [],
                "children": [
                  {
                    "standby": {
                      "node_id": "pg-58e924e93b564a24abb1e6b9cdfbc094",
                      "keywords": [
                        "standby",
                        "热备份",
                        "高可用",
                        "流复制"
                      ],
                      "children": []
                    }
                  },
                  {
                    "流式复制集群": {
                      "node_id": "pg-7eff3dcf68644c23bd89f2a2abe4fac6",
                      "keywords": [
                        "standby",
                        "高可用",
                        "流复制",
                        "wal"
                      ],
                      "children": []
                    }
                  },
                  {
                    "fdw": {
                      "node_id": "pg-20a433f6ae65429f9b1a7f17c751ac01",
                      "keywords": [
                        "外部数据连接",
                        "fdw"
                      ],
                      "children": []
                    }
                  }
                ]
              }
            },
            {
              "高级数据类型": {
                "node_id": "pg-f80410c703044bfea61b2f3a4fbc5705",
                "keywords": [],
                "children": [
                  {
                    "几何类型和GIS": {
                      "node_id": "pg-3bbe12c0a19d4cb7a61dc0a20624ed89",
                      "keywords": [
                        "gis",
                        "地理信息"
                      ],
                      "children": []
                    }
                  },
                  {
                    "JSON和JSONB": {
                      "node_id": "pg-69ad784e39c044d7a115cfd124e49ef1",
                      "keywords": [
                        "json",
                        "jsonb"
                      ],
                      "children": []
                    }
                  },
                  {
                    "函数": {
                      "node_id": "pg-6dbbb44b41d347b58075a9155dfb8356",
                      "keywords": [
                        "函数",
                        "过程",
                        "function",
                        "produce"
                      ],
                      "children": []
                    }
                  },
                  {
                    "视图": {
                      "node_id": "pg-532f8f84ea74493a9581e6bf720ebf78",
                      "keywords": [
                        "视图",
                        "view"
                      ],
                      "children": []
                    }
                  }
                ]
              }
            },
            {
              "SQL高级技巧": {
                "node_id": "pg-9e66230caa834cb99a2390c7f71fb582",
                "keywords": [],
                "children": [
                  {
                    "递归查询": {
                      "node_id": "pg-2e691ed3a847424eb887b40aca750c4e",
                      "keywords": [
                        "cte",
                        "递归查询",
                        "recursive"
                      ],
                      "children": []
                    }
                  },
                  {
                    "Window Function": {
                      "node_id": "pg-cab66a558cda467eabd9587b5a8257bd",
                      "keywords": [
                        "函数",
                        "function"
                      ],
                      "children": []
                    }
                  },
                  {
                    "透视表 ": {
                      "node_id": "pg-693a81467f444886a199bac681f238b8",
                      "keywords": [
                        "透视表",
                        "交叉透视表",
                        "pivot"
                      ],
                      "children": []
                    }
                  },
                  {
                    "写入和冲突": {
                      "node_id": "pg-6ce3520f7a67494a90378e7b194f8720",
                      "keywords": [
                        "conflict",
                        "冲突",
                        "唯一约束"
                      ],
                      "children": []
                    }
                  },
                  {
                    "事务": {
                      "node_id": "pg-2d547e778fc4453b84feb0a0c6341348",
                      "keywords": [
                        "事务",
                        "transaction"
                      ],
                      "children": []
                    }
                  },
                  {
                    "索引和优化": {
                      "node_id": "pg-79fe660f35f4469481db38509343c2b7",
                      "keywords": [
                        "索引",
                        "index",
                        "performance",
                        "优化"
                      ],
                      "children": []
                    }
                  }
                ]
              }
            }
          ]
        }
      }
    ]
  }
}