#
# Create a zero time event, should have zero time in Free/Busy
#
TYPE=PUT
HEADER=Content-Type: text/calendar
HEADER=User-Agent: RFC5545 Duration P0D
HEAD


BEGINDATA
BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//davical.org//NONSGML AWL Calendar//EN
CALSCALE:GREGORIAN
BEGIN:VTIMEZONE
TZID:Pacific/Auckland
BEGIN:STANDARD
TZOFFSETFROM:+1300
TZOFFSETTO:+1200
DTSTART:19900318T030000
RRULE:FREQ=YEARLY;UNTIL=20070317T140000Z;BYMONTH=3;BYDAY=3SU
TZNAME:NZST
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+1200
TZOFFSETTO:+1300
DTSTART:19901007T020000
RRULE:FREQ=YEARLY;UNTIL=20060930T140000Z;BYMONTH=10;BYDAY=1SU
TZNAME:NZDT
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:zero-duration-event
DTSTAMP:20210918T123000
SUMMARY:Zero duration event
DESCRIPTION:Zero duration event
CREATED:20210918T123000
DTSTART;TZID=Pacific/Auckland:20210919T013000
DTEND;TZID=Pacific/Auckland:20210919T013000
END:VEVENT
END:VCALENDAR
ENDDATA

URL=http://regression.host/caldav.php/user1/home/zero-duration-event.ics

QUERY
SELECT caldav_data.user_no, caldav_data.dav_etag, caldav_type, logged_user, 
       uid, dtstamp, dtstart at time zone olson_name as dtstart,
       dtend at time zone olson_name as dtend, due, summary, location,
       description, priority, class, transp, rrule, url,
       percent_complete, tz_id, status,
       caldav_data AS " CalDAV Data", calendar_item.last_modified,
      dtend - dtstart AS "~Duration"
FROM caldav_data JOIN calendar_item USING(dav_name) JOIN timezones ON (tz_id=tzid)
WHERE caldav_data.dav_name =
'/user1/home/zero-duration-event.ics';
ENDQUERY