Similar to #978. https://latest-with-plugins.datasette.io/fixtures?sql=select%0D%0A++dateutil_rrule(%27FREQ%3DHOURLY%3BCOUNT%3D5%27)%2C%0D%0A++dateutil_rrule_date(%0D%0A++++%27FREQ%3DDAILY%3BCOUNT%3D3%27%2C%0D%0A++++%271st+jan+2020%27%0D%0A++)%3B <img width="452" alt="fixtures__select_dateutil_rrule__FREQ_HOURLY_COUNT_5____dateutil_rrule_date___FREQ_DAILY_COUNT_3____1st_jan_2020____" src="https://user-images.githubusercontent.com/9599/94523237-c0e05d00-01e5-11eb-880d-5535f43f07a5.png">
