[fix](doc) add GROUP_CONCAT ORDER BY examples to 2.1/3.x group-concat docs

i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/aggregate-functions/group-concat.md

@@ -1,4 +1,4 @@
 ---
 {
     "title": "GROUP_CONCAT",
     "language": "zh-CN",
@@ -9,7 +9,7 @@
 ## 描述
 
 GROUP_CONCAT 函数将结果集中的多行结果连接成一个字符串
 
 ## 语法
 
 ```sql
@@ -18,7 +18,7 @@
 
 ## 参数
 
 | 参数 | 说明 |
 | -- | -- |
 | `<str>` | 必选。需要连接值的表达式 |
 | `<sep>` | 可选。字符串之间的连接符号 |
@@ -70,6 +70,34 @@
 +-----------------------+
 ```
 
+```sql
+select GROUP_CONCAT(value ORDER BY value DESC) from test;
+```
+
+```text
++-----------------------+
+| GROUP_CONCAT(`value`) |
++-----------------------+
+| c, c, b, a            |
++-----------------------+
+```
+
+:::note
+`GROUP_CONCAT` 中 `DISTINCT` 与 `ORDER BY` 组合自 2.1.6 起支持。
+:::
+
+```sql
+select GROUP_CONCAT(DISTINCT value ORDER BY value DESC) from test;
+```
+
+```text
++-----------------------+
+| GROUP_CONCAT(`value`) |
++-----------------------+
+| c, b, a               |
++-----------------------+
+```
+
 ```sql 
 select GROUP_CONCAT(value, " ") from test;
 ```

i18n/zh-CN/docusaurus-plugin-content-docs/version-3.x/sql-manual/sql-functions/aggregate-functions/group-concat.md

@@ -1,4 +1,4 @@
 ---
 {
     "title": "GROUP_CONCAT",
     "language": "zh-CN",
@@ -9,7 +9,7 @@
 ## 描述
 
 GROUP_CONCAT 函数将结果集中的多行结果连接成一个字符串
 
 ## 语法
 
 ```sql
@@ -70,6 +70,34 @@
 +-----------------------+
 ```
 
+```sql
+select GROUP_CONCAT(value ORDER BY value DESC) from test;
+```
+
+```text
++-----------------------+
+| GROUP_CONCAT(`value`) |
++-----------------------+
+| c, c, b, a            |
++-----------------------+
+```
+
+:::note
+`GROUP_CONCAT` 中 `DISTINCT` 与 `ORDER BY` 组合自 3.0.2 起支持。
+:::
+
+```sql
+select GROUP_CONCAT(DISTINCT value ORDER BY value DESC) from test;
+```
+
+```text
++-----------------------+
+| GROUP_CONCAT(`value`) |
++-----------------------+
+| c, b, a               |
++-----------------------+
+```
+
 ```sql 
 select GROUP_CONCAT(value, " ") from test;
 ```

versioned_docs/version-2.1/sql-manual/sql-functions/aggregate-functions/group-concat.md

@@ -1,4 +1,4 @@
 ---
 {
     "title": "GROUP_CONCAT",
     "language": "en",
@@ -9,7 +9,7 @@
 ## Description
 
 The GROUP_CONCAT function concatenates multiple rows of results in the result set into a string.
 
 ## Syntax
 
 ```sql
@@ -18,7 +18,7 @@
 
 ## Parameters
 
 | Parameters | Description |
 | ------------ | ---------------------- |
 | `<str>`      | Required. The expression of the value to be concatenated. |
 | `<sep>`      | Optional. The separator between strings. |
@@ -70,6 +70,34 @@
 +-----------------------+
 ```
 
+```sql
+select GROUP_CONCAT(value ORDER BY value DESC) from test;
+```
+
+```text
++-----------------------+
+| GROUP_CONCAT(`value`) |
++-----------------------+
+| c, c, b, a            |
++-----------------------+
+```
+
+:::note
+Combining `DISTINCT` with `ORDER BY` inside `GROUP_CONCAT` is supported since 2.1.6.
+:::
+
+```sql
+select GROUP_CONCAT(DISTINCT value ORDER BY value DESC) from test;
+```
+
+```text
++-----------------------+
+| GROUP_CONCAT(`value`) |
++-----------------------+
+| c, b, a               |
++-----------------------+
+```
+
 ```sql 
 select GROUP_CONCAT(value, " ") from test;
 ```

versioned_docs/version-3.x/sql-manual/sql-functions/aggregate-functions/group-concat.md

@@ -1,4 +1,4 @@
 ---
 {
     "title": "GROUP_CONCAT",
     "language": "en",
@@ -70,6 +70,34 @@
 +-----------------------+
 ```
 
+```sql
+select GROUP_CONCAT(value ORDER BY value DESC) from test;
+```
+
+```text
++-----------------------+
+| GROUP_CONCAT(`value`) |
++-----------------------+
+| c, c, b, a            |
++-----------------------+
+```
+
+:::note
+Combining `DISTINCT` with `ORDER BY` inside `GROUP_CONCAT` is supported since 3.0.2.
+:::
+
+```sql
+select GROUP_CONCAT(DISTINCT value ORDER BY value DESC) from test;
+```
+
+```text
++-----------------------+
+| GROUP_CONCAT(`value`) |
++-----------------------+
+| c, b, a               |
++-----------------------+
+```
+
 ```sql 
 select GROUP_CONCAT(value, " ") from test;
 ```