Adding upstream version 15.5.upstream/15.5

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 577 insertions, 0 deletions

diff --git a/src/test/regress/sql/interval.sql b/src/test/regress/sql/interval.sql
new file mode 100644
index 0000000..5b4944c
--- /dev/null
+++ b/src/test/regress/sql/interval.sql
@@ -0,0 +1,577 @@
+--
+-- INTERVAL
+--
+
+SET DATESTYLE = 'ISO';
+SET IntervalStyle to postgres;
+
+-- check acceptance of "time zone style"
+SELECT INTERVAL '01:00' AS "One hour";
+SELECT INTERVAL '+02:00' AS "Two hours";
+SELECT INTERVAL '-08:00' AS "Eight hours";
+SELECT INTERVAL '-1 +02:03' AS "22 hours ago...";
+SELECT INTERVAL '-1 days +02:03' AS "22 hours ago...";
+SELECT INTERVAL '1.5 weeks' AS "Ten days twelve hours";
+SELECT INTERVAL '1.5 months' AS "One month 15 days";
+SELECT INTERVAL '10 years -11 month -12 days +13:14' AS "9 years...";
+
+CREATE TABLE INTERVAL_TBL (f1 interval);
+
+INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 1 minute');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 5 hour');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 10 day');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 34 year');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 3 months');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 14 seconds ago');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('1 day 2 hours 3 minutes 4 seconds');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('6 years');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('5 months');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('5 months 12 hours');
+
+-- badly formatted interval
+INSERT INTO INTERVAL_TBL (f1) VALUES ('badly formatted interval');
+INSERT INTO INTERVAL_TBL (f1) VALUES ('@ 30 eons ago');
+
+-- test interval operators
+
+SELECT * FROM INTERVAL_TBL;
+
+SELECT * FROM INTERVAL_TBL
+   WHERE INTERVAL_TBL.f1 <> interval '@ 10 days';
+
+SELECT * FROM INTERVAL_TBL
+   WHERE INTERVAL_TBL.f1 <= interval '@ 5 hours';
+
+SELECT * FROM INTERVAL_TBL
+   WHERE INTERVAL_TBL.f1 < interval '@ 1 day';
+
+SELECT * FROM INTERVAL_TBL
+   WHERE INTERVAL_TBL.f1 = interval '@ 34 years';
+
+SELECT * FROM INTERVAL_TBL
+   WHERE INTERVAL_TBL.f1 >= interval '@ 1 month';
+
+SELECT * FROM INTERVAL_TBL
+   WHERE INTERVAL_TBL.f1 > interval '@ 3 seconds ago';
+
+SELECT r1.*, r2.*
+   FROM INTERVAL_TBL r1, INTERVAL_TBL r2
+   WHERE r1.f1 > r2.f1
+   ORDER BY r1.f1, r2.f1;
+
+-- Test intervals that are large enough to overflow 64 bits in comparisons
+CREATE TEMP TABLE INTERVAL_TBL_OF (f1 interval);
+INSERT INTO INTERVAL_TBL_OF (f1) VALUES
+  ('2147483647 days 2147483647 months'),
+  ('2147483647 days -2147483648 months'),
+  ('1 year'),
+  ('-2147483648 days 2147483647 months'),
+  ('-2147483648 days -2147483648 months');
+-- these should fail as out-of-range
+INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('2147483648 days');
+INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('-2147483649 days');
+INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('2147483647 years');
+INSERT INTO INTERVAL_TBL_OF (f1) VALUES ('-2147483648 years');
+
+-- Test edge-case overflow detection in interval multiplication
+select extract(epoch from '256 microseconds'::interval * (2^55)::float8);
+
+SELECT r1.*, r2.*
+   FROM INTERVAL_TBL_OF r1, INTERVAL_TBL_OF r2
+   WHERE r1.f1 > r2.f1
+   ORDER BY r1.f1, r2.f1;
+
+CREATE INDEX ON INTERVAL_TBL_OF USING btree (f1);
+SET enable_seqscan TO false;
+EXPLAIN (COSTS OFF)
+SELECT f1 FROM INTERVAL_TBL_OF r1 ORDER BY f1;
+SELECT f1 FROM INTERVAL_TBL_OF r1 ORDER BY f1;
+RESET enable_seqscan;
+
+DROP TABLE INTERVAL_TBL_OF;
+
+-- Test multiplication and division with intervals.
+-- Floating point arithmetic rounding errors can lead to unexpected results,
+-- though the code attempts to do the right thing and round up to days and
+-- minutes to avoid results such as '3 days 24:00 hours' or '14:20:60'.
+-- Note that it is expected for some day components to be greater than 29 and
+-- some time components be greater than 23:59:59 due to how intervals are
+-- stored internally.
+
+CREATE TABLE INTERVAL_MULDIV_TBL (span interval);
+COPY INTERVAL_MULDIV_TBL FROM STDIN;
+41 mon 12 days 360:00
+-41 mon -12 days +360:00
+-12 days
+9 mon -27 days 12:34:56
+-3 years 482 days 76:54:32.189
+4 mon
+14 mon
+999 mon 999 days
+\.
+
+SELECT span * 0.3 AS product
+FROM INTERVAL_MULDIV_TBL;
+
+SELECT span * 8.2 AS product
+FROM INTERVAL_MULDIV_TBL;
+
+SELECT span / 10 AS quotient
+FROM INTERVAL_MULDIV_TBL;
+
+SELECT span / 100 AS quotient
+FROM INTERVAL_MULDIV_TBL;
+
+DROP TABLE INTERVAL_MULDIV_TBL;
+
+SET DATESTYLE = 'postgres';
+SET IntervalStyle to postgres_verbose;
+
+SELECT * FROM INTERVAL_TBL;
+
+-- test avg(interval), which is somewhat fragile since people have been
+-- known to change the allowed input syntax for type interval without
+-- updating pg_aggregate.agginitval
+
+select avg(f1) from interval_tbl;
+
+-- test long interval input
+select '4 millenniums 5 centuries 4 decades 1 year 4 months 4 days 17 minutes 31 seconds'::interval;
+
+-- test long interval output
+-- Note: the actual maximum length of the interval output is longer,
+-- but we need the test to work for both integer and floating-point
+-- timestamps.
+select '100000000y 10mon -1000000000d -100000h -10min -10.000001s ago'::interval;
+
+-- test justify_hours() and justify_days()
+
+SELECT justify_hours(interval '6 months 3 days 52 hours 3 minutes 2 seconds') as "6 mons 5 days 4 hours 3 mins 2 seconds";
+SELECT justify_days(interval '6 months 36 days 5 hours 4 minutes 3 seconds') as "7 mons 6 days 5 hours 4 mins 3 seconds";
+
+SELECT justify_hours(interval '2147483647 days 24 hrs');
+SELECT justify_days(interval '2147483647 months 30 days');
+
+-- test justify_interval()
+
+SELECT justify_interval(interval '1 month -1 hour') as "1 month -1 hour";
+
+SELECT justify_interval(interval '2147483647 days 24 hrs');
+SELECT justify_interval(interval '-2147483648 days -24 hrs');
+SELECT justify_interval(interval '2147483647 months 30 days');
+SELECT justify_interval(interval '-2147483648 months -30 days');
+SELECT justify_interval(interval '2147483647 months 30 days -24 hrs');
+SELECT justify_interval(interval '-2147483648 months -30 days 24 hrs');
+SELECT justify_interval(interval '2147483647 months -30 days 1440 hrs');
+SELECT justify_interval(interval '-2147483648 months 30 days -1440 hrs');
+
+-- test fractional second input, and detection of duplicate units
+SET DATESTYLE = 'ISO';
+SET IntervalStyle TO postgres;
+
+SELECT '1 millisecond'::interval, '1 microsecond'::interval,
+       '500 seconds 99 milliseconds 51 microseconds'::interval;
+SELECT '3 days 5 milliseconds'::interval;
+
+SELECT '1 second 2 seconds'::interval;              -- error
+SELECT '10 milliseconds 20 milliseconds'::interval; -- error
+SELECT '5.5 seconds 3 milliseconds'::interval;      -- error
+SELECT '1:20:05 5 microseconds'::interval;          -- error
+SELECT '1 day 1 day'::interval;                     -- error
+SELECT interval '1-2';  -- SQL year-month literal
+SELECT interval '999' second;  -- oversize leading field is ok
+SELECT interval '999' minute;
+SELECT interval '999' hour;
+SELECT interval '999' day;
+SELECT interval '999' month;
+
+-- test SQL-spec syntaxes for restricted field sets
+SELECT interval '1' year;
+SELECT interval '2' month;
+SELECT interval '3' day;
+SELECT interval '4' hour;
+SELECT interval '5' minute;
+SELECT interval '6' second;
+SELECT interval '1' year to month;
+SELECT interval '1-2' year to month;
+SELECT interval '1 2' day to hour;
+SELECT interval '1 2:03' day to hour;
+SELECT interval '1 2:03:04' day to hour;
+SELECT interval '1 2' day to minute;
+SELECT interval '1 2:03' day to minute;
+SELECT interval '1 2:03:04' day to minute;
+SELECT interval '1 2' day to second;
+SELECT interval '1 2:03' day to second;
+SELECT interval '1 2:03:04' day to second;
+SELECT interval '1 2' hour to minute;
+SELECT interval '1 2:03' hour to minute;
+SELECT interval '1 2:03:04' hour to minute;
+SELECT interval '1 2' hour to second;
+SELECT interval '1 2:03' hour to second;
+SELECT interval '1 2:03:04' hour to second;
+SELECT interval '1 2' minute to second;
+SELECT interval '1 2:03' minute to second;
+SELECT interval '1 2:03:04' minute to second;
+SELECT interval '1 +2:03' minute to second;
+SELECT interval '1 +2:03:04' minute to second;
+SELECT interval '1 -2:03' minute to second;
+SELECT interval '1 -2:03:04' minute to second;
+SELECT interval '123 11' day to hour; -- ok
+SELECT interval '123 11' day; -- not ok
+SELECT interval '123 11'; -- not ok, too ambiguous
+SELECT interval '123 2:03 -2:04'; -- not ok, redundant hh:mm fields
+
+-- test syntaxes for restricted precision
+SELECT interval(0) '1 day 01:23:45.6789';
+SELECT interval(2) '1 day 01:23:45.6789';
+SELECT interval '12:34.5678' minute to second(2);  -- per SQL spec
+SELECT interval '1.234' second;
+SELECT interval '1.234' second(2);
+SELECT interval '1 2.345' day to second(2);
+SELECT interval '1 2:03' day to second(2);
+SELECT interval '1 2:03.4567' day to second(2);
+SELECT interval '1 2:03:04.5678' day to second(2);
+SELECT interval '1 2.345' hour to second(2);
+SELECT interval '1 2:03.45678' hour to second(2);
+SELECT interval '1 2:03:04.5678' hour to second(2);
+SELECT interval '1 2.3456' minute to second(2);
+SELECT interval '1 2:03.5678' minute to second(2);
+SELECT interval '1 2:03:04.5678' minute to second(2);
+
+-- test casting to restricted precision (bug #14479)
+SELECT f1, f1::INTERVAL DAY TO MINUTE AS "minutes",
+  (f1 + INTERVAL '1 month')::INTERVAL MONTH::INTERVAL YEAR AS "years"
+  FROM interval_tbl;
+
+-- test inputting and outputting SQL standard interval literals
+SET IntervalStyle TO sql_standard;
+SELECT  interval '0'                       AS "zero",
+        interval '1-2' year to month       AS "year-month",
+        interval '1 2:03:04' day to second AS "day-time",
+        - interval '1-2'                   AS "negative year-month",
+        - interval '1 2:03:04'             AS "negative day-time";
+
+-- test input of some not-quite-standard interval values in the sql style
+SET IntervalStyle TO postgres;
+SELECT  interval '+1 -1:00:00',
+        interval '-1 +1:00:00',
+        interval '+1-2 -3 +4:05:06.789',
+        interval '-1-2 +3 -4:05:06.789';
+
+-- cases that trigger sign-matching rules in the sql style
+SELECT  interval '-23 hours 45 min 12.34 sec',
+        interval '-1 day 23 hours 45 min 12.34 sec',
+        interval '-1 year 2 months 1 day 23 hours 45 min 12.34 sec',
+        interval '-1 year 2 months 1 day 23 hours 45 min +12.34 sec';
+
+-- test output of couple non-standard interval values in the sql style
+SET IntervalStyle TO sql_standard;
+SELECT  interval '1 day -1 hours',
+        interval '-1 days +1 hours',
+        interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds',
+        - interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds';
+
+-- cases that trigger sign-matching rules in the sql style
+SELECT  interval '-23 hours 45 min 12.34 sec',
+        interval '-1 day 23 hours 45 min 12.34 sec',
+        interval '-1 year 2 months 1 day 23 hours 45 min 12.34 sec',
+        interval '-1 year 2 months 1 day 23 hours 45 min +12.34 sec';
+
+-- edge case for sign-matching rules
+SELECT  interval '';  -- error
+
+-- test outputting iso8601 intervals
+SET IntervalStyle to iso_8601;
+select  interval '0'                                AS "zero",
+        interval '1-2'                              AS "a year 2 months",
+        interval '1 2:03:04'                        AS "a bit over a day",
+        interval '2:03:04.45679'                    AS "a bit over 2 hours",
+        (interval '1-2' + interval '3 4:05:06.7')   AS "all fields",
+        (interval '1-2' - interval '3 4:05:06.7')   AS "mixed sign",
+        (- interval '1-2' + interval '3 4:05:06.7') AS "negative";
+
+-- test inputting ISO 8601 4.4.2.1 "Format With Time Unit Designators"
+SET IntervalStyle to sql_standard;
+select  interval 'P0Y'                    AS "zero",
+        interval 'P1Y2M'                  AS "a year 2 months",
+        interval 'P1W'                    AS "a week",
+        interval 'P1DT2H3M4S'             AS "a bit over a day",
+        interval 'P1Y2M3DT4H5M6.7S'       AS "all fields",
+        interval 'P-1Y-2M-3DT-4H-5M-6.7S' AS "negative",
+        interval 'PT-0.1S'                AS "fractional second";
+
+-- test inputting ISO 8601 4.4.2.2 "Alternative Format"
+SET IntervalStyle to postgres;
+select  interval 'P00021015T103020'       AS "ISO8601 Basic Format",
+        interval 'P0002-10-15T10:30:20'   AS "ISO8601 Extended Format";
+
+-- Make sure optional ISO8601 alternative format fields are optional.
+select  interval 'P0002'                  AS "year only",
+        interval 'P0002-10'               AS "year month",
+        interval 'P0002-10-15'            AS "year month day",
+        interval 'P0002T1S'               AS "year only plus time",
+        interval 'P0002-10T1S'            AS "year month plus time",
+        interval 'P0002-10-15T1S'         AS "year month day plus time",
+        interval 'PT10'                   AS "hour only",
+        interval 'PT10:30'                AS "hour minute";
+
+-- Check handling of fractional fields in ISO8601 format.
+select interval 'P1Y0M3DT4H5M6S';
+select interval 'P1.0Y0M3DT4H5M6S';
+select interval 'P1.1Y0M3DT4H5M6S';
+select interval 'P1.Y0M3DT4H5M6S';
+select interval 'P.1Y0M3DT4H5M6S';
+select interval 'P10.5e4Y';  -- not per spec, but we've historically taken it
+select interval 'P.Y0M3DT4H5M6S';  -- error
+
+-- test a couple rounding cases that changed since 8.3 w/ HAVE_INT64_TIMESTAMP.
+SET IntervalStyle to postgres_verbose;
+select interval '-10 mons -3 days +03:55:06.70';
+select interval '1 year 2 mons 3 days 04:05:06.699999';
+select interval '0:0:0.7', interval '@ 0.70 secs', interval '0.7 seconds';
+
+-- test time fields using entire 64 bit microseconds range
+select interval '2562047788.01521550194 hours';
+select interval '-2562047788.01521550222 hours';
+select interval '153722867280.912930117 minutes';
+select interval '-153722867280.912930133 minutes';
+select interval '9223372036854.775807 seconds';
+select interval '-9223372036854.775808 seconds';
+select interval '9223372036854775.807 milliseconds';
+select interval '-9223372036854775.808 milliseconds';
+select interval '9223372036854775807 microseconds';
+select interval '-9223372036854775808 microseconds';
+
+select interval 'PT2562047788H54.775807S';
+select interval 'PT-2562047788H-54.775808S';
+
+select interval 'PT2562047788:00:54.775807';
+
+select interval 'PT2562047788.0152155019444';
+select interval 'PT-2562047788.0152155022222';
+
+-- overflow each date/time field
+select interval '2147483648 years';
+select interval '-2147483649 years';
+select interval '2147483648 months';
+select interval '-2147483649 months';
+select interval '2147483648 days';
+select interval '-2147483649 days';
+select interval '2562047789 hours';
+select interval '-2562047789 hours';
+select interval '153722867281 minutes';
+select interval '-153722867281 minutes';
+select interval '9223372036855 seconds';
+select interval '-9223372036855 seconds';
+select interval '9223372036854777 millisecond';
+select interval '-9223372036854777 millisecond';
+select interval '9223372036854775808 microsecond';
+select interval '-9223372036854775809 microsecond';
+
+select interval 'P2147483648';
+select interval 'P-2147483649';
+select interval 'P1-2147483647-2147483647';
+select interval 'PT2562047789';
+select interval 'PT-2562047789';
+
+-- overflow with date/time unit aliases
+select interval '2147483647 weeks';
+select interval '-2147483648 weeks';
+select interval '2147483647 decades';
+select interval '-2147483648 decades';
+select interval '2147483647 centuries';
+select interval '-2147483648 centuries';
+select interval '2147483647 millennium';
+select interval '-2147483648 millennium';
+
+select interval '1 week 2147483647 days';
+select interval '-1 week -2147483648 days';
+select interval '2147483647 days 1 week';
+select interval '-2147483648 days -1 week';
+
+select interval 'P1W2147483647D';
+select interval 'P-1W-2147483648D';
+select interval 'P2147483647D1W';
+select interval 'P-2147483648D-1W';
+
+select interval '1 decade 2147483647 years';
+select interval '1 century 2147483647 years';
+select interval '1 millennium 2147483647 years';
+select interval '-1 decade -2147483648 years';
+select interval '-1 century -2147483648 years';
+select interval '-1 millennium -2147483648 years';
+
+select interval '2147483647 years 1 decade';
+select interval '2147483647 years 1 century';
+select interval '2147483647 years 1 millennium';
+select interval '-2147483648 years -1 decade';
+select interval '-2147483648 years -1 century';
+select interval '-2147483648 years -1 millennium';
+
+-- overflowing with fractional fields - postgres format
+select interval '0.1 millennium 2147483647 months';
+select interval '0.1 centuries 2147483647 months';
+select interval '0.1 decades 2147483647 months';
+select interval '0.1 yrs 2147483647 months';
+select interval '-0.1 millennium -2147483648 months';
+select interval '-0.1 centuries -2147483648 months';
+select interval '-0.1 decades -2147483648 months';
+select interval '-0.1 yrs -2147483648 months';
+
+select interval '2147483647 months 0.1 millennium';
+select interval '2147483647 months 0.1 centuries';
+select interval '2147483647 months 0.1 decades';
+select interval '2147483647 months 0.1 yrs';
+select interval '-2147483648 months -0.1 millennium';
+select interval '-2147483648 months -0.1 centuries';
+select interval '-2147483648 months -0.1 decades';
+select interval '-2147483648 months -0.1 yrs';
+
+select interval '0.1 months 2147483647 days';
+select interval '-0.1 months -2147483648 days';
+select interval '2147483647 days 0.1 months';
+select interval '-2147483648 days -0.1 months';
+
+select interval '0.5 weeks 2147483647 days';
+select interval '-0.5 weeks -2147483648 days';
+select interval '2147483647 days 0.5 weeks';
+select interval '-2147483648 days -0.5 weeks';
+
+select interval '0.01 months 9223372036854775807 microseconds';
+select interval '-0.01 months -9223372036854775808 microseconds';
+select interval '9223372036854775807 microseconds 0.01 months';
+select interval '-9223372036854775808 microseconds -0.01 months';
+
+select interval '0.1 weeks 9223372036854775807 microseconds';
+select interval '-0.1 weeks -9223372036854775808 microseconds';
+select interval '9223372036854775807 microseconds 0.1 weeks';
+select interval '-9223372036854775808 microseconds -0.1 weeks';
+
+select interval '0.1 days 9223372036854775807 microseconds';
+select interval '-0.1 days -9223372036854775808 microseconds';
+select interval '9223372036854775807 microseconds 0.1 days';
+select interval '-9223372036854775808 microseconds -0.1 days';
+
+-- overflowing with fractional fields - ISO8601 format
+select interval 'P0.1Y2147483647M';
+select interval 'P-0.1Y-2147483648M';
+select interval 'P2147483647M0.1Y';
+select interval 'P-2147483648M-0.1Y';
+
+select interval 'P0.1M2147483647D';
+select interval 'P-0.1M-2147483648D';
+select interval 'P2147483647D0.1M';
+select interval 'P-2147483648D-0.1M';
+
+select interval 'P0.5W2147483647D';
+select interval 'P-0.5W-2147483648D';
+select interval 'P2147483647D0.5W';
+select interval 'P-2147483648D-0.5W';
+
+select interval 'P0.01MT2562047788H54.775807S';
+select interval 'P-0.01MT-2562047788H-54.775808S';
+
+select interval 'P0.1DT2562047788H54.775807S';
+select interval 'P-0.1DT-2562047788H-54.775808S';
+
+select interval 'PT2562047788.1H54.775807S';
+select interval 'PT-2562047788.1H-54.775808S';
+
+select interval 'PT2562047788H0.1M54.775807S';
+select interval 'PT-2562047788H-0.1M-54.775808S';
+
+-- overflowing with fractional fields - ISO8601 alternative format
+select interval 'P0.1-2147483647-00';
+select interval 'P00-0.1-2147483647';
+select interval 'P00-0.01-00T2562047788:00:54.775807';
+select interval 'P00-00-0.1T2562047788:00:54.775807';
+select interval 'PT2562047788.1:00:54.775807';
+select interval 'PT2562047788:01.:54.775807';
+
+-- overflowing with fractional fields - SQL standard format
+select interval '0.1 2562047788:0:54.775807';
+select interval '0.1 2562047788:0:54.775808 ago';
+
+select interval '2562047788.1:0:54.775807';
+select interval '2562047788.1:0:54.775808 ago';
+
+select interval '2562047788:0.1:54.775807';
+select interval '2562047788:0.1:54.775808 ago';
+
+-- overflowing using AGO with INT_MIN
+select interval '-2147483648 months ago';
+select interval '-2147483648 days ago';
+select interval '-9223372036854775808 microseconds ago';
+select interval '-2147483648 months -2147483648 days -9223372036854775808 microseconds ago';
+
+-- test that INT_MIN number is formatted properly
+SET IntervalStyle to postgres;
+select interval '-2147483648 months -2147483648 days -9223372036854775808 us';
+SET IntervalStyle to sql_standard;
+select interval '-2147483648 months -2147483648 days -9223372036854775808 us';
+SET IntervalStyle to iso_8601;
+select interval '-2147483648 months -2147483648 days -9223372036854775808 us';
+SET IntervalStyle to postgres_verbose;
+select interval '-2147483648 months -2147483648 days -9223372036854775808 us';
+
+-- check that '30 days' equals '1 month' according to the hash function
+select '30 days'::interval = '1 month'::interval as t;
+select interval_hash('30 days'::interval) = interval_hash('1 month'::interval) as t;
+
+-- numeric constructor
+select make_interval(years := 2);
+select make_interval(years := 1, months := 6);
+select make_interval(years := 1, months := -1, weeks := 5, days := -7, hours := 25, mins := -180);
+
+select make_interval() = make_interval(years := 0, months := 0, weeks := 0, days := 0, mins := 0, secs := 0.0);
+select make_interval(hours := -2, mins := -10, secs := -25.3);
+
+select make_interval(years := 'inf'::float::int);
+select make_interval(months := 'NaN'::float::int);
+select make_interval(secs := 'inf');
+select make_interval(secs := 'NaN');
+select make_interval(secs := 7e12);
+
+--
+-- test EXTRACT
+--
+SELECT f1,
+    EXTRACT(MICROSECOND FROM f1) AS MICROSECOND,
+    EXTRACT(MILLISECOND FROM f1) AS MILLISECOND,
+    EXTRACT(SECOND FROM f1) AS SECOND,
+    EXTRACT(MINUTE FROM f1) AS MINUTE,
+    EXTRACT(HOUR FROM f1) AS HOUR,
+    EXTRACT(DAY FROM f1) AS DAY,
+    EXTRACT(MONTH FROM f1) AS MONTH,
+    EXTRACT(QUARTER FROM f1) AS QUARTER,
+    EXTRACT(YEAR FROM f1) AS YEAR,
+    EXTRACT(DECADE FROM f1) AS DECADE,
+    EXTRACT(CENTURY FROM f1) AS CENTURY,
+    EXTRACT(MILLENNIUM FROM f1) AS MILLENNIUM,
+    EXTRACT(EPOCH FROM f1) AS EPOCH
+    FROM INTERVAL_TBL;
+
+SELECT EXTRACT(FORTNIGHT FROM INTERVAL '2 days');  -- error
+SELECT EXTRACT(TIMEZONE FROM INTERVAL '2 days');  -- error
+
+SELECT EXTRACT(DECADE FROM INTERVAL '100 y');
+SELECT EXTRACT(DECADE FROM INTERVAL '99 y');
+SELECT EXTRACT(DECADE FROM INTERVAL '-99 y');
+SELECT EXTRACT(DECADE FROM INTERVAL '-100 y');
+
+SELECT EXTRACT(CENTURY FROM INTERVAL '100 y');
+SELECT EXTRACT(CENTURY FROM INTERVAL '99 y');
+SELECT EXTRACT(CENTURY FROM INTERVAL '-99 y');
+SELECT EXTRACT(CENTURY FROM INTERVAL '-100 y');
+
+-- date_part implementation is mostly the same as extract, so only
+-- test a few cases for additional coverage.
+SELECT f1,
+    date_part('microsecond', f1) AS microsecond,
+    date_part('millisecond', f1) AS millisecond,
+    date_part('second', f1) AS second,
+    date_part('epoch', f1) AS epoch
+    FROM INTERVAL_TBL;
+
+-- internal overflow test case
+SELECT extract(epoch from interval '1000000000 days');