Update error code documentation (#17669)

content/en/docs/22.0/reference/errors/query-serving.md

@@ -85,6 +85,7 @@ These error messages are internal to Vitess. If you are getting other errors fro
 | VT09029 |  | In recursive query block of Recursive Common Table Expression %s, the recursive table must be referenced only once, and not in any subquery | 3577 | HY000 |
 | VT09030 |  | Recursive query aborted after 1000 iterations. | 3636 | HY000 |
 | VT09031 |  | Primary demotion is stalled | 0 |  |
+| VT09032 | This error occurs after a VT15001 error was sent to the client. Later queries in the same session will continue to fail until the client sends a ROLLBACK. | previous transaction failed. Issue a ROLLBACK to resolve the failure. | 0 |  |
 | VT10001 | Foreign key constraints are not allowed, see https://vitess.io/blog/2021-06-15-online-ddl-why-no-fk/. | foreign key constraints are not allowed | 0 |  |
 | VT10002 | The distributed transaction cannot be committed. A rollback decision is taken. | atomic distributed transaction not allowed: %s | 0 |  |
 | VT12001 | This statement is unsupported by Vitess. Please rewrite your query to use supported syntax. | unsupported: %s | 0 |  |
@@ -96,6 +97,7 @@ These error messages are internal to Vitess. If you are getting other errors fro
 | VT14003 | No connection for the given tablet. | no connection for tablet %v | 0 |  |
 | VT14004 | The specified keyspace could not be found. | cannot find keyspace for: %s | 0 |  |
 | VT14005 | Failed to read sidecar database identifier. | cannot lookup sidecar database for keyspace: %s | 0 |  |
+| VT15001 | Transaction must be rolled back by the application and re-tried. | transaction error, issue ROLLBACK and retry the transaction: %s |  |  |
 <!-- end -->
 
 ## Old Errors