if (fixedStmt == null) throw new FBSQLException("CallableStatement.getParameterMetaData() " + "can be used only after executing a statement.", FBSQLException.SQL_STATE_NO_RESULT_SET);
    public ParameterMetaData getParameterMetaData() throws SQLException {        return new FBParameterMetaData(fixedStmt.getInSqlda().sqlvar, c);    }