docs: add document for max_execution_time and statement_timeout

docs/user-guide/protocols/mysql.md

@@ -80,3 +80,13 @@ SELECT @@system_time_zone, @@time_zone;
 ```
 
 For information on how the time zone affects data inserts and queries, please refer to the SQL documents in the [Ingest Data](/user-guide/ingest-data/for-iot/sql.md#time-zone) and [Query Data](/user-guide/query-data/sql.md#time-zone) sections.
+
+## Query Timeout
+
+You can set the `max_execution_time` variable for the current session using SQL statement `SET max_execution_time = <value>` or `SET MAX_EXECUTION_TIME = <value>`, which specifies the maximum time in milliseconds for a **read-only statement** to execute. The server will terminate the query if it exceeds the specified time.
+
+For example, to set the maximum query execution time to 10 seconds:
+
+```SQL
+SET max_execution_time=10000;
+```

docs/user-guide/protocols/postgresql.md

@@ -176,3 +176,13 @@ SELECT
     count(latency)
 FROM ft_grpc_latencies GROUP BY host, t;
 ```
+
+## Statement Timeout
+
+You can set the `statement_timeout` variable for the current session using SQL statement `SET statement_timeout = <value>` or `SET STATEMENT_TIMEOUT = <value>`, which specifies the maximum time in milliseconds for a statement to execute. The server will terminate the statement if it exceeds the specified time.
+
+For example, to set the maximum execution time to 10 seconds:
+
+```SQL
+SET statement_timeout=10000;
+```

i18n/zh/docusaurus-plugin-content-docs/current/user-guide/protocols/mysql.md

@@ -76,3 +76,13 @@ SELECT @@system_time_zone, @@time_zone;
 ```
 
 有关时区如何影响数据的插入和查询，请参考 [写入数据](/user-guide/ingest-data/for-iot/sql.md#时区) 和 [查询数据](/user-guide/query-data/sql.md#时区) 中的 SQL 文档。
+
+## 查询超时
+
+可以通过 SQL 语句 `SET max_execution_time = <value>` 或 `SET MAX_EXECUTION_TIME = <value>` 为当前会话设置 `max_execution_time` 变量，该变量指定**只读语句**执行的最大时间（以毫秒为单位）。如果查询的执行时间超过指定时间，服务器将终止该查询。
+
+例如，将最大执行时间设置为 10 秒：
+
+```SQL
+SET max_execution_time=10000;
+```

i18n/zh/docusaurus-plugin-content-docs/current/user-guide/protocols/postgresql.md

@@ -171,3 +171,13 @@ SELECT
     count(latency)
 FROM ft_grpc_latencies GROUP BY host, t;
 ```
+
+## 语句执行超时
+
+你可以通过 SQL 语句 `SET statement_timeout = <value>` 或 `SET STATEMENT_TIMEOUT = <value>` 为当前会话设置 `statement_timeout` 变量，该变量指定语句执行的最大时间（以毫秒为单位）。如果语句的执行时间超过指定时间，服务器将终止该语句。
+
+例如，将最大执行时间设置为 10 秒：
+
+```SQL
+SET statement_timeout=10000;
+```

i18n/zh/docusaurus-plugin-content-docs/version-0.15/user-guide/protocols/mysql.md

@@ -76,3 +76,13 @@ SELECT @@system_time_zone, @@time_zone;
 ```
 
 有关时区如何影响数据的插入和查询，请参考 [写入数据](/user-guide/ingest-data/for-iot/sql.md#时区) 和 [查询数据](/user-guide/query-data/sql.md#时区) 中的 SQL 文档。
+
+## 查询超时
+
+可以通过 SQL 语句 `SET max_execution_time = <value>` 或 `SET MAX_EXECUTION_TIME = <value>` 为当前会话设置 `max_execution_time` 变量，该变量指定**只读语句**执行的最大时间（以毫秒为单位）。如果查询的执行时间超过指定时间，服务器将终止该查询。
+
+例如，将最大执行时间设置为 10 秒：
+
+```SQL
+SET max_execution_time=10000;
+```

i18n/zh/docusaurus-plugin-content-docs/version-0.15/user-guide/protocols/postgresql.md

@@ -171,3 +171,13 @@ SELECT
     count(latency)
 FROM ft_grpc_latencies GROUP BY host, t;
 ```
+
+## 语句执行超时
+
+你可以通过 SQL 语句 `SET statement_timeout = <value>` 或 `SET STATEMENT_TIMEOUT = <value>` 为当前会话设置 `statement_timeout` 变量，该变量指定语句执行的最大时间（以毫秒为单位）。如果语句的执行时间超过指定时间，服务器将终止该语句。
+
+例如，将最大执行时间设置为 10 秒：
+
+```SQL
+SET statement_timeout=10000;
+```

versioned_docs/version-0.15/user-guide/protocols/mysql.md

@@ -80,3 +80,13 @@ SELECT @@system_time_zone, @@time_zone;
 ```
 
 For information on how the time zone affects data inserts and queries, please refer to the SQL documents in the [Ingest Data](/user-guide/ingest-data/for-iot/sql.md#time-zone) and [Query Data](/user-guide/query-data/sql.md#time-zone) sections.
+
+## Query Timeout
+
+You can set the `max_execution_time` variable for the current session using SQL statement `SET max_execution_time = <value>` or `SET MAX_EXECUTION_TIME = <value>`, which specifies the maximum time in milliseconds for a **read-only statement** to execute. The server will terminate the query if it exceeds the specified time.
+
+For example, to set the maximum query execution time to 10 seconds:
+
+```SQL
+SET max_execution_time=10000;
+```

versioned_docs/version-0.15/user-guide/protocols/postgresql.md

@@ -176,3 +176,13 @@ SELECT
     count(latency)
 FROM ft_grpc_latencies GROUP BY host, t;
 ```
+
+## Statement Timeout
+
+You can set the `statement_timeout` variable for the current session using SQL statement `SET statement_timeout = <value>` or `SET STATEMENT_TIMEOUT = <value>`, which specifies the maximum time in milliseconds for a statement to execute. The server will terminate the statement if it exceeds the specified time.
+
+For example, to set the maximum execution time to 10 seconds:
+
+```SQL
+SET statement_timeout=10000;
+```