ISSUES-14235 change string.rfind to stringstarts_with

src/Core/MySQL/MySQLReplication.cpp

@@ -103,17 +103,17 @@ namespace MySQLReplication
             = header.event_size - EVENT_HEADER_LENGTH - 4 - 4 - 1 - 2 - 2 - status_len - schema_len - 1 - CHECKSUM_CRC32_SIGNATURE_LENGTH;
         query.resize(len);
         payload.readStrict(reinterpret_cast<char *>(query.data()), len);
-        if (query.rfind("BEGIN", 0) == 0 || query.rfind("COMMIT") == 0)
+        if (query.starts_with("BEGIN") || query.starts_with("COMMIT"))
         {
             typ = QUERY_EVENT_MULTI_TXN_FLAG;
         }
-        else if (query.rfind("XA", 0) == 0)
+        else if (query.starts_with("XA"))
         {
-            if (query.rfind("XA ROLLBACK", 0) == 0)
+            if (query.starts_with("XA ROLLBACK"))
                 throw ReplicationError("ParseQueryEvent: Unsupported query event:" + query, ErrorCodes::UNKNOWN_EXCEPTION);
             typ = QUERY_EVENT_XA;
         }
-        else if (query.rfind("SAVEPOINT", 0) == 0)
+        else if (query.starts_with("SAVEPOINT"))
         {
             throw ReplicationError("ParseQueryEvent: Unsupported query event:" + query, ErrorCodes::UNKNOWN_EXCEPTION);
         }