On Friday, 20 Jan 2017 at 22:29, John Hendy wrote:
> On Fri, Jan 20, 2017 at 3:56 PM, William Denton <wtd@pobox.com> wrote:
>> I have a long and wide table of text I'd like to have sideways (landscape
>> orientation) and stretch over multiple pages.  I can do either one but not
>> both together.

[...]

> I'm not sure what version of org I was using at the time (2014), but
> knew I'd done this. This might not be exactly what you wanted, but I
> just used landscape instead of sideways table and know it worked:
>
> #+LATEX_HEADER: \usepackage{lscape}
>
> #+latex: \begin{landscape}
> #+latex: \tiny
>
> #+attr_latex: :align llll|llllll|lllllll|lll :env longtable
> | table | goes | here |
>
> #+latex: \end{landscape}

This still works.  I use exactly this and it works with latest org.

-- 
: Eric S Fraga (0xFFFCF67D), Emacs 26.0.50.1, Org release_9.0.3-241-gc3d67b