private static void handleSubQueries(Client client, Select select) throws SqlParseException {
   if (select.containsSubQueries()) {
     for (SubQueryExpression subQueryExpression : select.getSubQueries()) {
       QueryAction queryAction = handleSelect(client, subQueryExpression.getSelect());
       executeAndFillSubQuery(client, subQueryExpression, queryAction);
     }
   }
 }