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--
-- TINTERVAL
--
CREATE TABLE TINTERVAL_TBL (f1 tinterval);
-- Should accept any abstime,
-- so do not bother with extensive testing of values
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["-infinity" "infinity"]');
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["May 10, 1947 23:59:12" "Jan 14, 1973 03:14:21"]');
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["Sep 4, 1983 23:59:12" "Oct 4, 1983 23:59:12"]');
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["epoch" "Mon May 1 00:30:30 1995"]');
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["Feb 15 1990 12:15:03" "2001-09-23 11:12:13"]');
-- badly formatted tintervals
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["bad time specifications" ""]');
INSERT INTO TINTERVAL_TBL (f1)
VALUES ('["" "infinity"]');
-- test tinterval operators
SELECT '' AS five, * FROM TINTERVAL_TBL;
-- length ==
SELECT '' AS one, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #= '@ 1 months';
-- length <>
SELECT '' AS three, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #<> '@ 1 months';
-- length <
SELECT '' AS zero, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #< '@ 1 month';
-- length <=
SELECT '' AS one, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #<= '@ 1 month';
-- length >
SELECT '' AS three, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #> '@ 1 year';
-- length >=
SELECT '' AS three, t.*
FROM TINTERVAL_TBL t
WHERE t.f1 #>= '@ 3 years';
-- overlaps
SELECT '' AS three, t1.*
FROM TINTERVAL_TBL t1
WHERE t1.f1 &&
tinterval '["Aug 15 14:23:19 1983" "Sep 16 14:23:19 1983"]';
SELECT '' AS five, t1.f1, t2.f1
FROM TINTERVAL_TBL t1, TINTERVAL_TBL t2
WHERE t1.f1 && t2.f1 and
t1.f1 = t2.f1
ORDER BY t1.f1, t2.f1;
SELECT '' AS fourteen, t1.f1 AS interval1, t2.f1 AS interval2
FROM TINTERVAL_TBL t1, TINTERVAL_TBL t2
WHERE t1.f1 && t2.f1 and not t1.f1 = t2.f1
ORDER BY interval1, interval2;
-- contains
SELECT '' AS five, t1.f1
FROM TINTERVAL_TBL t1
WHERE not t1.f1 <<
tinterval '["Aug 15 14:23:19 1980" "Sep 16 14:23:19 1990"]'
ORDER BY t1.f1;
-- make time interval
SELECT '' AS three, t1.f1
FROM TINTERVAL_TBL t1
WHERE t1.f1 &&
(abstime 'Aug 15 14:23:19 1983' <#>
abstime 'Sep 16 14:23:19 1983')
ORDER BY t1.f1;
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