[fix](function) Add parameter restrictions for function random (#992)

master pr: apache/doris#39255

docs/sql-manual/sql-functions/numeric-functions/random.md

@@ -38,6 +38,8 @@ Returns a random number between a and b. a must be less than b.
 
 Alias: `rand`.
 
+Note: All parameters must be constants.
+
 ### example
 
 ```sql

i18n/zh-CN/docusaurus-plugin-content-docs/current/sql-manual/sql-functions/numeric-functions/random.md

@@ -38,6 +38,8 @@ under the License.
 
 别名：`rand`
 
+注意：所有参数必须为常量。
+
 ### example
 
 ```sql

i18n/zh-CN/docusaurus-plugin-content-docs/version-2.1/sql-manual/sql-functions/numeric-functions/random.md

@@ -38,6 +38,8 @@ under the License.
 
 别名：`rand`
 
+注意：所有参数必须为常量。
+
 ### example
 
 ```sql

i18n/zh-CN/docusaurus-plugin-content-docs/version-3.0/sql-manual/sql-functions/numeric-functions/random.md

@@ -38,6 +38,8 @@ under the License.
 
 别名：`rand`
 
+注意：所有参数必须为常量。
+
 ### example
 
 ```sql

versioned_docs/version-2.1/sql-manual/sql-functions/numeric-functions/random.md

@@ -38,6 +38,8 @@ Returns a random number between a and b. a must be less than b.
 
 Alias: `rand`.
 
+Note: All parameters must be constants.
+
 ### example
 
 ```sql

versioned_docs/version-3.0/sql-manual/sql-functions/numeric-functions/random.md

@@ -38,6 +38,8 @@ Returns a random number between a and b. a must be less than b.
 
 Alias: `rand`.
 
+Note: All parameters must be constants.
+
 ### example
 
 ```sql