@Override
    public InputStream getInputStream(final int columnIndex, final String type) throws SQLException {
        return mergedResult.getInputStream(columnIndex, type);
    }
@Test
    void assertGetInputStream() throws SQLException {
        InputStream inputStream = mock(InputStream.class);
        when(mergedResult.getInputStream(1, "asc")).thenReturn(inputStream);
        assertThat(new MaskMergedResult(mock(MaskRule.class), mock(SelectStatementContext.class), mergedResult).getInputStream(1, "asc"), is(inputStream));
    }