Update generated code (#1770)

update generated code

CHANGELOG.md

@@ -5,6 +5,7 @@
 ### Changed
 
 - Enable compiler optimization for the `sprintf` function.
+- AWS enhancement: Documentation updates.
 
 ## 2.1.2
 

src/RdsDataServiceClient.php

@@ -114,8 +114,8 @@ public function batchExecuteStatement($input): BatchExecuteStatementResponse
      * > A transaction times out if no calls use its transaction ID in three minutes. If a transaction times out before it's
      * > committed, it's rolled back automatically.
      * >
-     * > DDL statements inside a transaction cause an implicit commit. We recommend that you run each DDL statement in a
-     * > separate `ExecuteStatement` call with `continueAfterTimeout` enabled.
+     * > For Aurora MySQL, DDL statements inside a transaction cause an implicit commit. We recommend that you run each
+     * > MySQL DDL statement in a separate `ExecuteStatement` call with `continueAfterTimeout` enabled.
      *
      * @see https://docs.aws.amazon.com/rdsdataservice/latest/APIReference/API_BeginTransaction.html
      * @see https://docs.aws.amazon.com/aws-sdk-php/v3/api/api-rds-data-2018-08-01.html#begintransaction