docs: public int getAutoIncrementIncrement() throws SQLException {
      if (autoIncrementIncrement == 0) {
        lock.lock();
        try {
          Results results = new Results();
          executeQuery(true, results, "select @@auto_increment_increment");
          results.commandEnd();
          ResultSet rs = results.getResultSet();
          rs.next();
          autoIncrementIncrement = rs.getInt(1);
        } catch (SQLException e) {
          if (e.getSQLState().startsWith("08")) {
            throw e;
          }
          autoIncrementIncrement = 1;
        } finally {
          lock.unlock();
        }
      }
      return autoIncrementIncrement;
    }