InputStream is =  getField(columnIndex).getUnicodeStream(); if (is==null) return null; else return new java.io.InputStreamReader(getField(columnIndex).getUnicodeStream());
return getField(columnIndex).getCharacterStream();
    public java.io.Reader getCharacterStream(int columnIndex) throws  SQLException {        InputStream is =  getField(columnIndex).getUnicodeStream();        if (is==null)            return null;        else            return new java.io.InputStreamReader(getField(columnIndex).getUnicodeStream());    }