Fixing the error regex to match numbers with the long suffix, like 1146L

lib/sqlalchemy/dialects/mysql/gaerdbms.py

@@ -74,7 +74,7 @@ class MySQLDialect_gaerdbms(MySQLDialect_mysqldb):
         return [], opts
 
     def _extract_error_code(self, exception):
-        match = re.compile(r"^(\d+):|^\((\d+),").match(str(exception))
+        match = re.compile(r"^(\d+)L?:|^\((\d+)L?,").match(str(exception))
         # The rdbms api will wrap then re-raise some types of errors
         # making this regex return no matches.
         code = match.group(1) or match.group(2) if match else None