System.out.println("retrieved blob_id: " + row[columnIndex - 1]);
    public Blob getBlob(int columnIndex) throws  SQLException {        if ((getXsqlvar(columnIndex).sqltype & ~1) != GDS.SQL_BLOB) {            throw new SQLException("Wrong type for column " + columnIndex + "type should be" + getXsqlvar(columnIndex).sqltype);        }        setWasNullColumnIndex(columnIndex);        if (row[columnIndex - 1] == null) {            return null;        }        System.out.println("retrieved blob_id: " + row[columnIndex - 1]);        return new FBBlob(mc, ((Long)row[columnIndex - 1]).longValue());    }