Add system tables in table model (#689)

* add system tables in table model

* add system tables in table model

* adjust sidebar and path

* adjust sidebar

Author: leto-b

Diff for: src/.vuepress/sidebar/V2.0.x/en-Table.ts

@@ -193,6 +193,7 @@ export const enSidebar = {
         { text: 'Sample Data', link: 'Sample-Data' },
         { text: 'Config Manual', link: 'System-Config-Manual' },
         { text: 'Status Codes', link: 'Status-Codes' },
+        { text: 'System Tables', link: 'System-Tables' },
       ],
     },
   ],

Diff for: src/.vuepress/sidebar/V2.0.x/zh-Table.ts

@@ -183,6 +183,7 @@ export const zhSidebar = {
         { text: '示例数据', link: 'Sample-Data' },
         { text: '配置参数', link: 'System-Config-Manual' },
         { text: '状态码', link: 'Status-Codes' },
+        { text: '系统表', link: 'System-Tables' },
       ],
     },
   ],

Diff for: src/.vuepress/sidebar_timecho/V2.0.x/en-Table.ts

@@ -198,6 +198,7 @@ export const enSidebar = {
         { text: 'Sample Data', link: 'Sample-Data' },
         { text: 'Config Manual', link: 'System-Config-Manual' },
         { text: 'Status Codes', link: 'Status-Codes' },
+        { text: 'System Tables', link: 'System-Tables' },
       ],
     },
   ],

Diff for: src/.vuepress/sidebar_timecho/V2.0.x/zh-Table.ts

@@ -187,6 +187,7 @@ export const zhSidebar = {
         { text: '示例数据', link: 'Sample-Data' },
         { text: '配置参数', link: 'System-Config-Manual' },
         { text: '状态码', link: 'Status-Codes' },
+        { text: '系统表', link: 'System-Tables' },
       ],
     },
   ],

Diff for: src/UserGuide/Master/Table/Reference/System-Tables.md

@@ -261,6 +261,8 @@ IoTDB> SHOW CURRENT_TIMESTAMP;
 
 **Description**: Displays information about all currently executing queries.
 
+> For more details on how to use system tables, please refer to [System Tables](../Reference/System-Tables.md)
+
 **Syntax**:
 
 ```SQL

Diff for: src/UserGuide/Master/Table/User-Manual/Maintenance-commands.md

@@ -261,6 +261,8 @@ IoTDB> SHOW CURRENT_TIMESTAMP;
 
 **Description**: Displays information about all currently executing queries.
 
+> For more details on how to use system tables, please refer to [System Tables](../Reference/System-Tables.md)
+
 **Syntax**:
 
 ```SQL

Diff for: src/UserGuide/latest-Table/Reference/System-Tables.md

@@ -262,6 +262,8 @@ IoTDB> SHOW CURRENT_TIMESTAMP
 
 **含义**：用于显示所有正在执行的查询信息。
 
+> 更多系统表使用方法请参考[系统表](../Reference/System-Tables.md)
+
 #### 语法：
 
 ```SQL

Diff for: src/UserGuide/latest-Table/User-Manual/Maintenance-commands.md

@@ -262,6 +262,8 @@ IoTDB> SHOW CURRENT_TIMESTAMP
 
 **含义**：用于显示所有正在执行的查询信息。
 
+> 更多系统表使用方法请参考[系统表](../Reference/System-Tables.md)
+
 #### 语法：
 
 ```SQL