private void closeOperationHandle(TOperationHandle stmtHandle) throws SQLException {
    try {
      if (stmtHandle != null) {
        TCloseOperationReq closeReq = new TCloseOperationReq(stmtHandle);
        TCloseOperationResp closeResp = client.CloseOperation(closeReq);
        Utils.verifySuccessWithInfo(closeResp.getStatus());
      }
    } catch (SQLException e) {
      throw e;
    } catch (Exception e) {
      throw new SQLException(e.toString(), "08S01", e);
    }
  }
Set the specified schema to the resultset
@param colNames
@param colTypes
jdbc/src/java/org/apache/hive/jdbc/HiveQueryResultSet.java