davical/dba/rrule_tests.sql
Andrew McMillan 3230f90541 Uglified to work with PostgreSQL 8.1, 8.2
If these show noticeable performance difference then we'll add
some version dependency checking and load different functions
for the older database.
2009-04-15 00:05:15 +12:00

458 lines
21 KiB
SQL

-- --------------------------------------------------------------------
-- This file is a set of tests for the RRULE sql functions taken from
-- the examples in RFC2445 section 4.8.5.4
-- --------------------------------------------------------------------
-- --------------------------------------------------------------------
-- Daily for 10 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=DAILY;COUNT=10
--
-- ==> (1997 9:00 AM EDT)September 2-11
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=DAILY;COUNT=10' );
--
-- --------------------------------------------------------------------
-- Daily until December 24, 1997:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=DAILY;UNTIL=19971224T000000Z
--
-- ==> (1997 9:00 AM EDT)September 2-30;October 1-25
-- (1997 9:00 AM EST)October 26-31;November 1-30;December 1-23
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=DAILY;UNTIL=19971224T000000' );
--
-- --------------------------------------------------------------------
-- Every other day - forever:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=DAILY;INTERVAL=2
-- ==> (1997 9:00 AM EDT)September2,4,6,8...24,26,28,30;
-- October 2,4,6...20,22,24
-- (1997 9:00 AM EST)October 26,28,30;November 1,3,5,7...25,27,29;
-- Dec 1,3,...
--
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=DAILY;INTERVAL=2' ) LIMIT 50;
-- --------------------------------------------------------------------
-- Every 10 days, 5 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=DAILY;INTERVAL=10;COUNT=5
--
-- ==> (1997 9:00 AM EDT)September 2,12,22;October 2,12
--
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=DAILY;INTERVAL=10;COUNT=5' );
-- --------------------------------------------------------------------
-- Everyday in January, for 3 years:
--
-- DTSTART;TZID=US-Eastern:19980101T090000
-- RRULE:FREQ=YEARLY;UNTIL=20000131T090000Z;
-- BYMONTH=1;BYDAY=SU,MO,TU,WE,TH,FR,SA
-- or
-- RRULE:FREQ=DAILY;UNTIL=20000131T090000Z;BYMONTH=1
--
-- ==> (1998 9:00 AM EDT)January 1-31
-- (1999 9:00 AM EDT)January 1-31
-- (2000 9:00 AM EDT)January 1-31
--
--- ? No instance on January 31, since 9:00am EDT is after 2000-01-31 09:00:00 UTC. I think that is correct.
--- ? SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19980101T090000', 'FREQ=YEARLY;UNTIL=20000131T090000Z;BYMONTH=1;BYDAY=SU,MO,TU,WE,TH,FR,SA' );
--- ? No instance on January 31, since 9:00am EDT is after 2000-01-31 09:00:00 UTC. I think that is correct.
--- ? SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19980101T090000', 'FREQ=DAILY;UNTIL=20000131T090000Z;BYMONTH=1' );
-- --------------------------------------------------------------------
-- Weekly for 10 occurrences
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=WEEKLY;COUNT=10
--
-- ==> (1997 9:00 AM EDT)September 2,9,16,23,30;October 7,14,21
-- (1997 9:00 AM EST)October 28;November 4
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=WEEKLY;COUNT=10' );
--
-- --------------------------------------------------------------------
-- Weekly until December 24, 1997
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=WEEKLY;UNTIL=19971224T000000Z
--
-- ==> (1997 9:00 AM EDT)September 2,9,16,23,30;October 7,14,21
-- (1997 9:00 AM EST)October 28;November 4,11,18,25;
-- December 2,9,16,23
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=WEEKLY;UNTIL=19971224T000000Z' );
--
-- --------------------------------------------------------------------
-- Every other week - forever:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=WEEKLY;INTERVAL=2;WKST=SU
--
-- ==> (1997 9:00 AM EDT)September 2,16,30;October 14
-- (1997 9:00 AM EST)October 28;November 11,25;December 9,23
-- (1998 9:00 AM EST)January 6,20;February 3, 17
-- ...
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=WEEKLY;INTERVAL=2;WKST=SU' ) LIMIT 13;
--
-- --------------------------------------------------------------------
-- Weekly on Tuesday and Thursday for 5 weeks:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=WEEKLY;UNTIL=19971007T000000Z;WKST=SU;BYDAY=TU,TH
-- or
-- RRULE:FREQ=WEEKLY;COUNT=10;WKST=SU;BYDAY=TU,TH
--
-- ==> (1997 9:00 AM EDT)September 2,4,9,11,16,18,23,25,30;October 2
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=WEEKLY;UNTIL=19971007T000000Z;WKST=SU;BYDAY=TU,TH' );
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=WEEKLY;COUNT=10;WKST=SU;BYDAY=TU,TH' );
--
-- --------------------------------------------------------------------
-- Every other week on Monday, Wednesday and Friday until December 24,
-- 1997, but starting on Tuesday, September 2, 1997:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=WEEKLY;INTERVAL=2;UNTIL=19971224T000000Z;WKST=SU;
-- BYDAY=MO,WE,FR
-- ==> (1997 9:00 AM EDT)September 2,3,5,15,17,19,29;October
-- 1,3,13,15,17
-- (1997 9:00 AM EST)October 27,29,31;November 10,12,14,24,26,28;
-- December 8,10,12,22
-- !!! This is challenging, because it starts on DTSTART even though DTSTART fails the repeat criteria. In fact no known provide a UI that allows data like this to be created.
--- !!! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=WEEKLY;INTERVAL=2;UNTIL=19971224T000000Z;WKST=SU;BYDAY=MO,WE,FR' );
--
-- --------------------------------------------------------------------
-- Every other week on Tuesday and Thursday, for 8 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=8;WKST=SU;BYDAY=TU,TH
--
-- ==> (1997 9:00 AM EDT)September 2,4,16,18,30;October 2,14,16
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=WEEKLY;INTERVAL=2;COUNT=8;WKST=SU;BYDAY=TU,TH' );
--
-- --------------------------------------------------------------------
-- Monthly on the 1st Friday for ten occurrences:
--
-- DTSTART;TZID=US-Eastern:19970905T090000
-- RRULE:FREQ=MONTHLY;COUNT=10;BYDAY=1FR
--
-- ==> (1997 9:00 AM EDT)September 5;October 3
-- (1997 9:00 AM EST)November 7;Dec 5
-- (1998 9:00 AM EST)January 2;February 6;March 6;April 3
-- (1998 9:00 AM EDT)May 1;June 5
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970905T090000', 'FREQ=MONTHLY;COUNT=10;BYDAY=1FR' );
--
-- --------------------------------------------------------------------
-- Monthly on the 1st Friday until December 24, 1997:
--
-- DTSTART;TZID=US-Eastern:19970905T090000
-- RRULE:FREQ=MONTHLY;UNTIL=19971224T000000Z;BYDAY=1FR
--
-- ==> (1997 9:00 AM EDT)September 5;October 3
-- (1997 9:00 AM EST)November 7;December 5
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970905T090000', 'FREQ=MONTHLY;UNTIL=19971224T000000Z;BYDAY=1FR' );
--
-- --------------------------------------------------------------------
-- Every other month on the 1st and last Sunday of the month for 10
-- occurrences:
--
-- DTSTART;TZID=US-Eastern:19970907T090000
-- RRULE:FREQ=MONTHLY;INTERVAL=2;COUNT=10;BYDAY=1SU,-1SU
--
-- ==> (1997 9:00 AM EDT)September 7,28
-- (1997 9:00 AM EST)November 2,30
-- (1998 9:00 AM EST)January 4,25;March 1,29
-- (1998 9:00 AM EDT)May 3,31
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970907T090000', 'FREQ=MONTHLY;INTERVAL=2;COUNT=10;BYDAY=1SU,-1SU' );
--
-- --------------------------------------------------------------------
-- Monthly on the second to last Monday of the month for 6 months:
--
-- DTSTART;TZID=US-Eastern:19970922T090000
-- RRULE:FREQ=MONTHLY;COUNT=6;BYDAY=-2MO
--
-- ==> (1997 9:00 AM EDT)September 22;October 20
-- (1997 9:00 AM EST)November 17;December 22
-- (1998 9:00 AM EST)January 19;February 16
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=MONTHLY;COUNT=6;BYDAY=-2MO' );
--
-- --------------------------------------------------------------------
-- Monthly on the third to the last day of the month, forever:
--
-- DTSTART;TZID=US-Eastern:19970928T090000
-- RRULE:FREQ=MONTHLY;BYMONTHDAY=-3
--
-- ==> (1997 9:00 AM EDT)September 28
-- (1997 9:00 AM EST)October 29;November 28;December 29
-- (1998 9:00 AM EST)January 29;February 26
-- ...
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=MONTHLY;BYMONTHDAY=-3' ) LIMIT 6;
--
-- --------------------------------------------------------------------
-- Monthly on the 2nd and 15th of the month for 10 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=MONTHLY;COUNT=10;BYMONTHDAY=2,15
--
-- ==> (1997 9:00 AM EDT)September 2,15;October 2,15
-- (1997 9:00 AM EST)November 2,15;December 2,15
-- (1998 9:00 AM EST)January 2,15
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=MONTHLY;COUNT=10;BYMONTHDAY=2,15' );
--
-- --------------------------------------------------------------------
-- Monthly on the first and last day of the month for 10 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970930T090000
-- RRULE:FREQ=MONTHLY;COUNT=10;BYMONTHDAY=1,-1
--
-- ==> (1997 9:00 AM EDT)September 30;October 1
-- (1997 9:00 AM EST)October 31;November 1,30;December 1,31
-- (1998 9:00 AM EST)January 1,31;February 1
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970930T090000', 'FREQ=MONTHLY;COUNT=10;BYMONTHDAY=1,-1' );
--
-- --------------------------------------------------------------------
-- Every 18 months on the 10th thru 15th of the month for 10
-- occurrences:
--
-- DTSTART;TZID=US-Eastern:19970910T090000
-- RRULE:FREQ=MONTHLY;INTERVAL=18;COUNT=10;BYMONTHDAY=10,11,12,13,14,
-- 15
--
-- ==> (1997 9:00 AM EDT)September 10,11,12,13,14,15
-- (1999 9:00 AM EST)March 10,11,12,13
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970910T090000', 'FREQ=MONTHLY;INTERVAL=18;COUNT=10;BYMONTHDAY=10,11,12,13,14,15' );
--
-- --------------------------------------------------------------------
-- Every Tuesday, every other month:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=MONTHLY;INTERVAL=2;BYDAY=TU
--
-- ==> (1997 9:00 AM EDT)September 2,9,16,23,30
-- (1997 9:00 AM EST)November 4,11,18,25
-- (1998 9:00 AM EST)January 6,13,20,27;March 3,10,17,24,31
-- ...
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=MONTHLY;INTERVAL=2;BYDAY=TU' ) LIMIT 18;
--
-- --------------------------------------------------------------------
-- Yearly in June and July for 10 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970610T090000
-- RRULE:FREQ=YEARLY;COUNT=10;BYMONTH=6,7
-- ==> (1997 9:00 AM EDT)June 10;July 10
-- (1998 9:00 AM EDT)June 10;July 10
-- (1999 9:00 AM EDT)June 10;July 10
-- (2000 9:00 AM EDT)June 10;July 10
-- (2001 9:00 AM EDT)June 10;July 10
-- Note: Since none of the BYDAY, BYMONTHDAY or BYYEARDAY components
-- are specified, the day is gotten from DTSTART
--- !!! We miss the first instance in June. Busted.
--- !!! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970610T090000', 'FREQ=YEARLY;COUNT=10;BYMONTH=6,7' );
--
-- --------------------------------------------------------------------
-- Every other year on January, February, and March for 10 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970310T090000
-- RRULE:FREQ=YEARLY;INTERVAL=2;COUNT=10;BYMONTH=1,2,3
--
-- ==> (1997 9:00 AM EST)March 10
-- (1999 9:00 AM EST)January 10;February 10;March 10
-- (2001 9:00 AM EST)January 10;February 10;March 10
-- (2003 9:00 AM EST)January 10;February 10;March 10
--- !!! We miss the first instance in March. Busted.
--- !!! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970310T090000', 'FREQ=YEARLY;INTERVAL=2;COUNT=10;BYMONTH=1,2,3' );
--
-- --------------------------------------------------------------------
-- Every 3rd year on the 1st, 100th and 200th day for 10 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970101T090000
-- RRULE:FREQ=YEARLY;INTERVAL=3;COUNT=10;BYYEARDAY=1,100,200
--
-- ==> (1997 9:00 AM EST)January 1
-- (1997 9:00 AM EDT)April 10;July 19
-- (2000 9:00 AM EST)January 1
-- (2000 9:00 AM EDT)April 9;July 18
-- (2003 9:00 AM EST)January 1
-- (2003 9:00 AM EDT)April 10;July 19
-- (2006 9:00 AM EST)January 1
--- ! We don't support BYYEARDAY yet.
--- ! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970101T090000', 'FREQ=YEARLY;INTERVAL=3;COUNT=10;BYYEARDAY=1,100,200' );
--
-- --------------------------------------------------------------------
-- Every 20th Monday of the year, forever:
-- DTSTART;TZID=US-Eastern:19970519T090000
-- RRULE:FREQ=YEARLY;BYDAY=20MO
--
-- ==> (1997 9:00 AM EDT)May 19
-- (1998 9:00 AM EDT)May 18
-- (1999 9:00 AM EDT)May 17
-- ...
--- ! We don't support BYDAY for yearly events. We don't support YEARLY at all well, TBH
--- ! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970519T090000', 'FREQ=YEARLY;BYDAY=20MO' ) LIMIT 3;
--
-- --------------------------------------------------------------------
-- Monday of week number 20 (where the default start of the week is
-- Monday), forever:
--
-- DTSTART;TZID=US-Eastern:19970512T090000
-- RRULE:FREQ=YEARLY;BYWEEKNO=20;BYDAY=MO
--
-- ==> (1997 9:00 AM EDT)May 12
-- (1998 9:00 AM EDT)May 11
-- (1999 9:00 AM EDT)May 17
-- ...
--- ! We don't support BYWEEKNO at all yet.
--- ! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970512T090000', 'FREQ=YEARLY;BYWEEKNO=20;BYDAY=MO' ) LIMIT 3;
--
-- --------------------------------------------------------------------
-- Every Thursday in March, forever:
--
-- DTSTART;TZID=US-Eastern:19970313T090000
-- RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=TH
--
-- ==> (1997 9:00 AM EST)March 13,20,27
-- (1998 9:00 AM EST)March 5,12,19,26
-- (1999 9:00 AM EST)March 4,11,18,25
-- ...
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970313T090000', 'FREQ=YEARLY;BYMONTH=3;BYDAY=TH' ) LIMIT 11;
--
-- --------------------------------------------------------------------
-- Every Thursday, but only during June, July, and August, forever:
--
-- DTSTART;TZID=US-Eastern:19970605T090000
-- RRULE:FREQ=YEARLY;BYDAY=TH;BYMONTH=6,7,8
--
-- ==> (1997 9:00 AM EDT)June 5,12,19,26;July 3,10,17,24,31;
-- August 7,14,21,28
-- (1998 9:00 AM EDT)June 4,11,18,25;July 2,9,16,23,30;
-- August 6,13,20,27
-- (1999 9:00 AM EDT)June 3,10,17,24;July 1,8,15,22,29;
-- August 5,12,19,26
-- ...
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970605T090000', 'FREQ=YEARLY;BYDAY=TH;BYMONTH=6,7,8' ) LIMIT 39;
--
-- --------------------------------------------------------------------
-- Every Friday the 13th, forever:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- EXDATE;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=MONTHLY;BYDAY=FR;BYMONTHDAY=13
--
-- ==> (1998 9:00 AM EST)February 13;March 13;November 13
-- (1999 9:00 AM EDT)August 13
-- (2000 9:00 AM EDT)October 13
-- ...
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=MONTHLY;BYDAY=FR;BYMONTHDAY=13' ) LIMIT 35;
--
-- --------------------------------------------------------------------
-- The first Saturday that follows the first Sunday of the month,
-- forever:
--
-- DTSTART;TZID=US-Eastern:19970913T090000
-- RRULE:FREQ=MONTHLY;BYDAY=SA;BYMONTHDAY=7,8,9,10,11,12,13
--
-- ==> (1997 9:00 AM EDT)September 13;October 11
-- (1997 9:00 AM EST)November 8;December 13
-- (1998 9:00 AM EST)January 10;February 7;March 7
-- (1998 9:00 AM EDT)April 11;May 9;June 13...
-- ...
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970913T090000', 'FREQ=MONTHLY;BYDAY=SA;BYMONTHDAY=7,8,9,10,11,12,13' ) LIMIT 10;
--
-- --------------------------------------------------------------------
-- Every four years, the first Tuesday after a Monday in November,
-- forever (U.S. Presidential Election day):
--
-- DTSTART;TZID=US-Eastern:19961105T090000
-- RRULE:FREQ=YEARLY;INTERVAL=4;BYMONTH=11;BYDAY=TU;BYMONTHDAY=2,3,4,
-- 5,6,7,8
--
-- ==> (1996 9:00 AM EST)November 5
-- (2000 9:00 AM EST)November 7
-- (2004 9:00 AM EST)November 2
-- ...
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19961105T090000', 'FREQ=YEARLY;INTERVAL=4;BYMONTH=11;BYDAY=TU;BYMONTHDAY=2,3,4,5,6,7,8' ) LIMIT 6;
--
-- --------------------------------------------------------------------
-- The 3rd instance into the month of one of Tuesday, Wednesday or
-- Thursday, for the next 3 months:
--
-- DTSTART;TZID=US-Eastern:19970904T090000
-- RRULE:FREQ=MONTHLY;COUNT=3;BYDAY=TU,WE,TH;BYSETPOS=3
--
-- ==> (1997 9:00 AM EDT)September 4;October 7
-- (1997 9:00 AM EST)November 6
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970904T090000', 'FREQ=MONTHLY;COUNT=3;BYDAY=TU,WE,TH;BYSETPOS=3' );
--
-- --------------------------------------------------------------------
-- The 2nd to last weekday of the month:
--
-- DTSTART;TZID=US-Eastern:19970929T090000
-- RRULE:FREQ=MONTHLY;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=-2
--
-- ==> (1997 9:00 AM EDT)September 29
-- (1997 9:00 AM EST)October 30;November 27;December 30
-- (1998 9:00 AM EST)January 29;February 26;March 30
-- ...
--- SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970929T090000', 'FREQ=MONTHLY;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=-2' ) LIMIT 8;
--
-- --------------------------------------------------------------------
-- Every 3 hours from 9:00 AM to 5:00 PM on a specific day:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=HOURLY;INTERVAL=3;UNTIL=19970902T170000Z
--
-- ==> (September 2, 1997 EDT)09:00,12:00,15:00
--- !! FREQ=HOURLY Not implemented
--- !! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=HOURLY;INTERVAL=3;UNTIL=19970902T170000Z' );
--
-- --------------------------------------------------------------------
-- Every 15 minutes for 6 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=MINUTELY;INTERVAL=15;COUNT=6
--
-- ==> (September 2, 1997 EDT)09:00,09:15,09:30,09:45,10:00,10:15
--- !! FREQ=MINUTELY Not implemented
--- !! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('', '' );
--
-- --------------------------------------------------------------------
-- Every hour and a half for 4 occurrences:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=MINUTELY;INTERVAL=90;COUNT=4
--
-- ==> (September 2, 1997 EDT)09:00,10:30;12:00;13:30
--- !! FREQ=HOURLY Not implemented
--- !! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('', '' );
--
-- --------------------------------------------------------------------
-- Every 20 minutes from 9:00 AM to 4:40 PM every day:
--
-- DTSTART;TZID=US-Eastern:19970902T090000
-- RRULE:FREQ=DAILY;BYHOUR=9,10,11,12,13,14,15,16;BYMINUTE=0,20,40
-- or
-- RRULE:FREQ=MINUTELY;INTERVAL=20;BYHOUR=9,10,11,12,13,14,15,16
--
-- ==> (September 2, 1997 EDT)9:00,9:20,9:40,10:00,10:20,
-- ... 16:00,16:20,16:40
-- (September 3, 1997 EDT)9:00,9:20,9:40,10:00,10:20,
-- ...16:00,16:20,16:40
-- ...
--- !! FREQ=MINUTELY and/or BYHOUR Not implemented
--- !! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970902T090000', 'FREQ=DAILY;BYHOUR=9,10,11,12,13,14,15,16;BYMINUTE=0,20,40' ) LIMIT 500;
--
-- --------------------------------------------------------------------
-- An example where the days generated makes a difference because of
-- WKST:
--
-- DTSTART;TZID=US-Eastern:19970805T090000
-- RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=4;BYDAY=TU,SU;WKST=MO
--
-- ==> (1997 EDT)Aug 5,10,19,24
--
-- changing only WKST from MO to SU, yields different results...
--
-- DTSTART;TZID=US-Eastern:19970805T090000
-- RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=4;BYDAY=TU,SU;WKST=SU
-- ==> (1997 EDT)August 5,17,19,31
--
--- !! WKST Not implemented. The second one works fine because WKST == SU in all our code.
--- !! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970805T090000', 'FREQ=WEEKLY;INTERVAL=2;COUNT=4;BYDAY=TU,SU;WKST=MO' );
--- !! SET timezone TO 'US/Eastern'; SELECT * FROM event_instances('19970805T090000', 'FREQ=WEEKLY;INTERVAL=2;COUNT=4;BYDAY=TU,SU;WKST=SU' );
--