Postgresql: 概述架构图

wiki/database-system/PostgreSQL/概述.md

@@ -36,6 +36,116 @@ PostgreSQL 的发展历程反映了其对技术创新和社区驱动的承诺：
 
 与其他关系数据库相比，**PostgreSQL 一直强调其对开放性、扩展性和标准的遵循**。与 MySQL、Oracle 和 SQL Server 等数据库相比，它被视为一个功能丰富但需要一定学习投入的选择。
 
+## 架构
+
+```mermaid
+graph LR;
+    A[PostgreSQL 数据库服务] --> B1[数据库集簇 A];
+    A[PostgreSQL 数据库服务] --> B2[数据库集簇 B];
+    B1 --> C1[单一实例];
+    B2 --> C2[单一实例];
+    C1 --> D1[数据库 A];
+    C1 --> D2[数据库 B];
+    C2 --> D3[数据库 C];
+    D1 --> E1[数据表1];
+    D1 --> E2[数据表2];
+    D1 --> F1[视图];
+    D1 --> F2[函数];
+    D1 --> F3[触发器];
+    E1 --> G1[列];
+    E1 --> G2[索引];
+    E1 --> G3[主键];
+    E1 --> G4[外键];
+    E1 --> G9[约束];
+    E2 --> G5[列];
+    E2 --> G6[索引];
+    E2 --> G7[主键];
+    E2 --> G8[外键];
+    E2 --> G10[约束];
+    A --> H1[事务和并发控制];
+    A --> H2[备份和恢复];
+    A --> H3[安全性和权限管理];
+    
+    A --> I[进程管理器];
+    A --> J[SQL 解析器];
+    A --> K[查询优化器];
+    A --> L[查询执行器];
+    
+    I --> M[后台进程];
+    I --> N[自动清理进程];
+    I --> O[后台工作进程];
+    
+    L --> P[存储管理器];
+    P --> Q[缓冲区管理];
+    P --> R[磁盘空间管理];
+    P --> S[事务管理];
+    P --> X[日志管理];
+    
+    Q --> T[共享缓冲区];
+    Q --> U[WAL 预写日志];
+    
+    S --> V[事务日志];
+    S --> W[多版本并发控制 MVCC];
+    
+    H1 --> Y[锁管理];
+    H2 --> Z1[物理备份];
+    H2 --> Z2[逻辑备份];
+    H3 --> Z3[角色和权限管理];
+    H3 --> Z4[加密和认证];
+    
+    K --> Z5[统计信息];
+    
+    style A fill:#f9d,stroke:#333,stroke-width:2px;
+    style B1 fill:#fc9,stroke:#333,stroke-width:2px;
+    style B2 fill:#fc9,stroke:#333,stroke-width:2px;
+    style C1 fill:#9cf,stroke:#333,stroke-width:2px;
+    style C2 fill:#9cf,stroke:#333,stroke-width:2px;
+    style D1 fill:#9fc,stroke:#333,stroke-width:2px;
+    style D2 fill:#9fc,stroke:#333,stroke-width:2px;
+    style D3 fill:#9fc,stroke:#333,stroke-width:2px;
+    style E1 fill:#c9f,stroke:#333,stroke-width:2px;
+    style E2 fill:#c9f,stroke:#333,stroke-width:2px;
+    style F1 fill:#ccf,stroke:#333,stroke-width:2px;
+    style F2 fill:#ccf,stroke:#333,stroke-width:2px;
+    style F3 fill:#ccf,stroke:#333,stroke-width:2px;
+    style G1 fill:#fcc,stroke:#333,stroke-width:2px;
+    style G2 fill:#fcc,stroke:#333,stroke-width:2px;
+    style G3 fill:#fcc,stroke:#333,stroke-width:2px;
+    style G4 fill:#fcc,stroke:#333,stroke-width:2px;
+    style G5 fill:#fcc,stroke:#333,stroke-width:2px;
+    style G6 fill:#fcc,stroke:#333,stroke-width:2px;
+    style G7 fill:#fcc,stroke:#333,stroke-width:2px;
+    style G8 fill:#fcc,stroke:#333,stroke-width:2px;
+    style G9 fill:#fcc,stroke:#333,stroke-width:2px;
+    style G10 fill:#fcc,stroke:#333,stroke-width:2px;
+    style H1 fill:#ccc,stroke:#333,stroke-width:2px;
+    style H2 fill:#ccc,stroke:#333,stroke-width:2px;
+    style H3 fill:#ccc,stroke:#333,stroke-width:2px;
+    style I fill:#9cf,stroke:#333,stroke-width:2px;
+    style J fill:#9cf,stroke:#333,stroke-width:2px;
+    style K fill:#9cf,stroke:#333,stroke-width:2px;
+    style L fill:#9cf,stroke:#333,stroke-width:2px;
+    style M fill:#cfc,stroke:#333,stroke-width:2px;
+    style N fill:#cfc,stroke:#333,stroke-width:2px;
+    style O fill:#cfc,stroke:#333,stroke-width:2px;
+    style P fill:#ccf,stroke:#333,stroke-width:2px;
+    style Q fill:#ccf,stroke:#333,stroke-width:2px;
+    style R fill:#ccf,stroke:#333,stroke-width:2px;
+    style S fill:#ccf,stroke:#333,stroke-width:2px;
+    style T fill:#fcc,stroke:#333,stroke-width:2px;
+    style U fill:#fcc,stroke:#333,stroke-width:2px;
+    style V fill:#fcc,stroke:#333,stroke-width:2px;
+    style W fill:#fcc,stroke:#333,stroke-width:2px;
+    style X fill:#ccf,stroke:#333,stroke-width:2px;
+    style Y fill:#ccc,stroke:#333,stroke-width:2px;
+    style Z1 fill:#ccc,stroke:#333,stroke-width:2px;
+    style Z2 fill:#ccc,stroke:#333,stroke-width:2px;
+    style Z3 fill:#ccc,stroke:#333,stroke-width:2px;
+    style Z4 fill:#ccc,stroke:#333,stroke-width:2px;
+    style Z5 fill:#9cf,stroke:#333,stroke-width:2px;
+
+```
+
 ## 特点
 
 作为世界上最先进的开源关系数据库，PostgreSQL 具有以下显著特点：
@@ -70,6 +180,14 @@ PostgreSQL 通常每年发布一次主要版本，并根据需要发布小的补
 
 ```mermaid
 graph LR
+    style A fill:#f9d,stroke:#333,stroke-width:2px;
+    style B fill:#9cf,stroke:#333,stroke-width:2px;
+    style C fill:#9cf,stroke:#333,stroke-width:2px;
+    style D fill:#ccf,stroke:#333,stroke-width:2px;
+    style E fill:#ccf,stroke:#333,stroke-width:2px;
+    style F fill:#ccf,stroke:#333,stroke-width:2px;
+    style G fill:#ccf,stroke:#333,stroke-width:2px;
+    
     A[PostgreSQL 发布规则]
     B[小版本发布]
     C[主要版本发布]
@@ -87,10 +205,11 @@ graph LR
     C --> H
     
     D[每个季度至少发布一次小版本]
-    F[目标日期：每年的 2 月、5 月、8 月和 11 月的第二个星期四]
+    F[目标日期: 每年的 2 月, 5 月, 8 月和 11 月的第二个星期四]
     E[每年一次发布一次主要版本]
     G[计划在 2023 年第三季度发布 16 版本]
     H[主要版本提供 5 年技术支持]
+
 ```
 
 ## 文化

wiki/database-system/基础/_category_.json

@@ -1,8 +1,8 @@
 {
-    "label": "基础理论",
+    "label": "基础",
     "position": 1,
     "link": {
       "type": "generated-index",
-      "title": "基础理论"
+      "title": "基础"
     }
 }