@Deprecated
    public InputStream getUnicodeStream(String columnName) throws SQLException {
        return getUnicodeStream(findColumn(columnName));
    }
Gets the value of the designated column in the current row
of this rowset's <code>ResultSet</code> object as a stream of
Unicode characters. The value can then be read in chunks from the
stream. This method is particularly
suitable for retrieving large <code>LONGVARCHAR</code> values.
The JDBC driver will
do any necessary conversion from the database format into Unicode.
The byte format of the Unicode stream must be Java UTF-8,
as defined in the Java virtual machine specification.

<P><B>Note:</B> All the data in the returned stream must be
read prior to getting the value of any other column. The next
call to a <code>getXXX</code> method implicitly closes the stream. Also, a
stream may return <code>0</code> when the method <code>available</code>
is called whether there is data available or not.

@param columnName the SQL name of the column
@return a Java input stream that delivers the database column value
as a stream of two-byte Unicode characters.
If the value is SQL <code>NULL</code>,
the value returned is <code>null</code>.
@throws SQLException if (1) a database access error occurs
           or (2) this rowset does not have a currently valid connection,
           prepared statement, and result set
@deprecated
src/main/java/org/replicadb/rowset/sun/rowset/JdbcRowSetImpl.java