@Override
    public Reader getCharacterStream(final int columnIndex) throws SQLException {
        return queryResult.getCharacterStream(columnIndex);
    }
@Test
    void assertGetCharacterStream() throws SQLException {
        QueryResult queryResult = mock(QueryResult.class);
        Reader value = mock(Reader.class);
        when(queryResult.getCharacterStream(1)).thenReturn(value);
        TransparentMergedResult actual = new TransparentMergedResult(queryResult);
        assertThat(actual.getCharacterStream(1), is(value));
    }