406 lines
9.5 KiB
Plaintext
406 lines
9.5 KiB
Plaintext
--
|
|
-- INT4
|
|
--
|
|
CREATE TABLE INT4_TBL(f1 int4);
|
|
INSERT INTO INT4_TBL(f1) VALUES (' 0 ');
|
|
INSERT INTO INT4_TBL(f1) VALUES ('123456 ');
|
|
INSERT INTO INT4_TBL(f1) VALUES (' -123456');
|
|
INSERT INTO INT4_TBL(f1) VALUES ('34.5');
|
|
ERROR: invalid input syntax for type integer: "34.5"
|
|
LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('34.5');
|
|
^
|
|
-- largest and smallest values
|
|
INSERT INTO INT4_TBL(f1) VALUES ('2147483647');
|
|
INSERT INTO INT4_TBL(f1) VALUES ('-2147483647');
|
|
-- bad input values -- should give errors
|
|
INSERT INTO INT4_TBL(f1) VALUES ('1000000000000');
|
|
ERROR: value "1000000000000" is out of range for type integer
|
|
LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('1000000000000');
|
|
^
|
|
INSERT INTO INT4_TBL(f1) VALUES ('asdf');
|
|
ERROR: invalid input syntax for type integer: "asdf"
|
|
LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('asdf');
|
|
^
|
|
INSERT INTO INT4_TBL(f1) VALUES (' ');
|
|
ERROR: invalid input syntax for type integer: " "
|
|
LINE 1: INSERT INTO INT4_TBL(f1) VALUES (' ');
|
|
^
|
|
INSERT INTO INT4_TBL(f1) VALUES (' asdf ');
|
|
ERROR: invalid input syntax for type integer: " asdf "
|
|
LINE 1: INSERT INTO INT4_TBL(f1) VALUES (' asdf ');
|
|
^
|
|
INSERT INTO INT4_TBL(f1) VALUES ('- 1234');
|
|
ERROR: invalid input syntax for type integer: "- 1234"
|
|
LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('- 1234');
|
|
^
|
|
INSERT INTO INT4_TBL(f1) VALUES ('123 5');
|
|
ERROR: invalid input syntax for type integer: "123 5"
|
|
LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('123 5');
|
|
^
|
|
INSERT INTO INT4_TBL(f1) VALUES ('');
|
|
ERROR: invalid input syntax for type integer: ""
|
|
LINE 1: INSERT INTO INT4_TBL(f1) VALUES ('');
|
|
^
|
|
SELECT '' AS five, * FROM INT4_TBL;
|
|
five | f1
|
|
------+-------------
|
|
| 0
|
|
| 123456
|
|
| -123456
|
|
| 2147483647
|
|
| -2147483647
|
|
(5 rows)
|
|
|
|
SELECT '' AS four, i.* FROM INT4_TBL i WHERE i.f1 <> int2 '0';
|
|
four | f1
|
|
------+-------------
|
|
| 123456
|
|
| -123456
|
|
| 2147483647
|
|
| -2147483647
|
|
(4 rows)
|
|
|
|
SELECT '' AS four, i.* FROM INT4_TBL i WHERE i.f1 <> int4 '0';
|
|
four | f1
|
|
------+-------------
|
|
| 123456
|
|
| -123456
|
|
| 2147483647
|
|
| -2147483647
|
|
(4 rows)
|
|
|
|
SELECT '' AS one, i.* FROM INT4_TBL i WHERE i.f1 = int2 '0';
|
|
one | f1
|
|
-----+----
|
|
| 0
|
|
(1 row)
|
|
|
|
SELECT '' AS one, i.* FROM INT4_TBL i WHERE i.f1 = int4 '0';
|
|
one | f1
|
|
-----+----
|
|
| 0
|
|
(1 row)
|
|
|
|
SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 < int2 '0';
|
|
two | f1
|
|
-----+-------------
|
|
| -123456
|
|
| -2147483647
|
|
(2 rows)
|
|
|
|
SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 < int4 '0';
|
|
two | f1
|
|
-----+-------------
|
|
| -123456
|
|
| -2147483647
|
|
(2 rows)
|
|
|
|
SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 <= int2 '0';
|
|
three | f1
|
|
-------+-------------
|
|
| 0
|
|
| -123456
|
|
| -2147483647
|
|
(3 rows)
|
|
|
|
SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 <= int4 '0';
|
|
three | f1
|
|
-------+-------------
|
|
| 0
|
|
| -123456
|
|
| -2147483647
|
|
(3 rows)
|
|
|
|
SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 > int2 '0';
|
|
two | f1
|
|
-----+------------
|
|
| 123456
|
|
| 2147483647
|
|
(2 rows)
|
|
|
|
SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 > int4 '0';
|
|
two | f1
|
|
-----+------------
|
|
| 123456
|
|
| 2147483647
|
|
(2 rows)
|
|
|
|
SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 >= int2 '0';
|
|
three | f1
|
|
-------+------------
|
|
| 0
|
|
| 123456
|
|
| 2147483647
|
|
(3 rows)
|
|
|
|
SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 >= int4 '0';
|
|
three | f1
|
|
-------+------------
|
|
| 0
|
|
| 123456
|
|
| 2147483647
|
|
(3 rows)
|
|
|
|
-- positive odds
|
|
SELECT '' AS one, i.* FROM INT4_TBL i WHERE (i.f1 % int2 '2') = int2 '1';
|
|
one | f1
|
|
-----+------------
|
|
| 2147483647
|
|
(1 row)
|
|
|
|
-- any evens
|
|
SELECT '' AS three, i.* FROM INT4_TBL i WHERE (i.f1 % int4 '2') = int2 '0';
|
|
three | f1
|
|
-------+---------
|
|
| 0
|
|
| 123456
|
|
| -123456
|
|
(3 rows)
|
|
|
|
SELECT '' AS five, i.f1, i.f1 * int2 '2' AS x FROM INT4_TBL i;
|
|
ERROR: integer out of range
|
|
SELECT '' AS five, i.f1, i.f1 * int2 '2' AS x FROM INT4_TBL i
|
|
WHERE abs(f1) < 1073741824;
|
|
five | f1 | x
|
|
------+---------+---------
|
|
| 0 | 0
|
|
| 123456 | 246912
|
|
| -123456 | -246912
|
|
(3 rows)
|
|
|
|
SELECT '' AS five, i.f1, i.f1 * int4 '2' AS x FROM INT4_TBL i;
|
|
ERROR: integer out of range
|
|
SELECT '' AS five, i.f1, i.f1 * int4 '2' AS x FROM INT4_TBL i
|
|
WHERE abs(f1) < 1073741824;
|
|
five | f1 | x
|
|
------+---------+---------
|
|
| 0 | 0
|
|
| 123456 | 246912
|
|
| -123456 | -246912
|
|
(3 rows)
|
|
|
|
SELECT '' AS five, i.f1, i.f1 + int2 '2' AS x FROM INT4_TBL i;
|
|
ERROR: integer out of range
|
|
SELECT '' AS five, i.f1, i.f1 + int2 '2' AS x FROM INT4_TBL i
|
|
WHERE f1 < 2147483646;
|
|
five | f1 | x
|
|
------+-------------+-------------
|
|
| 0 | 2
|
|
| 123456 | 123458
|
|
| -123456 | -123454
|
|
| -2147483647 | -2147483645
|
|
(4 rows)
|
|
|
|
SELECT '' AS five, i.f1, i.f1 + int4 '2' AS x FROM INT4_TBL i;
|
|
ERROR: integer out of range
|
|
SELECT '' AS five, i.f1, i.f1 + int4 '2' AS x FROM INT4_TBL i
|
|
WHERE f1 < 2147483646;
|
|
five | f1 | x
|
|
------+-------------+-------------
|
|
| 0 | 2
|
|
| 123456 | 123458
|
|
| -123456 | -123454
|
|
| -2147483647 | -2147483645
|
|
(4 rows)
|
|
|
|
SELECT '' AS five, i.f1, i.f1 - int2 '2' AS x FROM INT4_TBL i;
|
|
ERROR: integer out of range
|
|
SELECT '' AS five, i.f1, i.f1 - int2 '2' AS x FROM INT4_TBL i
|
|
WHERE f1 > -2147483647;
|
|
five | f1 | x
|
|
------+------------+------------
|
|
| 0 | -2
|
|
| 123456 | 123454
|
|
| -123456 | -123458
|
|
| 2147483647 | 2147483645
|
|
(4 rows)
|
|
|
|
SELECT '' AS five, i.f1, i.f1 - int4 '2' AS x FROM INT4_TBL i;
|
|
ERROR: integer out of range
|
|
SELECT '' AS five, i.f1, i.f1 - int4 '2' AS x FROM INT4_TBL i
|
|
WHERE f1 > -2147483647;
|
|
five | f1 | x
|
|
------+------------+------------
|
|
| 0 | -2
|
|
| 123456 | 123454
|
|
| -123456 | -123458
|
|
| 2147483647 | 2147483645
|
|
(4 rows)
|
|
|
|
SELECT '' AS five, i.f1, i.f1 / int2 '2' AS x FROM INT4_TBL i;
|
|
five | f1 | x
|
|
------+-------------+-------------
|
|
| 0 | 0
|
|
| 123456 | 61728
|
|
| -123456 | -61728
|
|
| 2147483647 | 1073741823
|
|
| -2147483647 | -1073741823
|
|
(5 rows)
|
|
|
|
SELECT '' AS five, i.f1, i.f1 / int4 '2' AS x FROM INT4_TBL i;
|
|
five | f1 | x
|
|
------+-------------+-------------
|
|
| 0 | 0
|
|
| 123456 | 61728
|
|
| -123456 | -61728
|
|
| 2147483647 | 1073741823
|
|
| -2147483647 | -1073741823
|
|
(5 rows)
|
|
|
|
--
|
|
-- more complex expressions
|
|
--
|
|
-- variations on unary minus parsing
|
|
SELECT -2+3 AS one;
|
|
one
|
|
-----
|
|
1
|
|
(1 row)
|
|
|
|
SELECT 4-2 AS two;
|
|
two
|
|
-----
|
|
2
|
|
(1 row)
|
|
|
|
SELECT 2- -1 AS three;
|
|
three
|
|
-------
|
|
3
|
|
(1 row)
|
|
|
|
SELECT 2 - -2 AS four;
|
|
four
|
|
------
|
|
4
|
|
(1 row)
|
|
|
|
SELECT int2 '2' * int2 '2' = int2 '16' / int2 '4' AS true;
|
|
true
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT int4 '2' * int2 '2' = int2 '16' / int4 '4' AS true;
|
|
true
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT int2 '2' * int4 '2' = int4 '16' / int2 '4' AS true;
|
|
true
|
|
------
|
|
t
|
|
(1 row)
|
|
|
|
SELECT int4 '1000' < int4 '999' AS false;
|
|
false
|
|
-------
|
|
f
|
|
(1 row)
|
|
|
|
SELECT 4! AS twenty_four;
|
|
twenty_four
|
|
-------------
|
|
24
|
|
(1 row)
|
|
|
|
SELECT !!3 AS six;
|
|
six
|
|
-----
|
|
6
|
|
(1 row)
|
|
|
|
SELECT 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 AS ten;
|
|
ten
|
|
-----
|
|
10
|
|
(1 row)
|
|
|
|
SELECT 2 + 2 / 2 AS three;
|
|
three
|
|
-------
|
|
3
|
|
(1 row)
|
|
|
|
SELECT (2 + 2) / 2 AS two;
|
|
two
|
|
-----
|
|
2
|
|
(1 row)
|
|
|
|
-- corner case
|
|
SELECT (-1::int4<<31)::text;
|
|
text
|
|
-------------
|
|
-2147483648
|
|
(1 row)
|
|
|
|
SELECT ((-1::int4<<31)+1)::text;
|
|
text
|
|
-------------
|
|
-2147483647
|
|
(1 row)
|
|
|
|
-- check sane handling of INT_MIN overflow cases
|
|
SELECT (-2147483648)::int4 * (-1)::int4;
|
|
ERROR: integer out of range
|
|
SELECT (-2147483648)::int4 / (-1)::int4;
|
|
ERROR: integer out of range
|
|
SELECT (-2147483648)::int4 % (-1)::int4;
|
|
?column?
|
|
----------
|
|
0
|
|
(1 row)
|
|
|
|
SELECT (-2147483648)::int4 * (-1)::int2;
|
|
ERROR: integer out of range
|
|
SELECT (-2147483648)::int4 / (-1)::int2;
|
|
ERROR: integer out of range
|
|
SELECT (-2147483648)::int4 % (-1)::int2;
|
|
?column?
|
|
----------
|
|
0
|
|
(1 row)
|
|
|
|
-- check rounding when casting from float
|
|
SELECT x, x::int4 AS int4_value
|
|
FROM (VALUES (-2.5::float8),
|
|
(-1.5::float8),
|
|
(-0.5::float8),
|
|
(0.0::float8),
|
|
(0.5::float8),
|
|
(1.5::float8),
|
|
(2.5::float8)) t(x);
|
|
x | int4_value
|
|
------+------------
|
|
-2.5 | -2
|
|
-1.5 | -2
|
|
-0.5 | 0
|
|
0 | 0
|
|
0.5 | 0
|
|
1.5 | 2
|
|
2.5 | 2
|
|
(7 rows)
|
|
|
|
-- check rounding when casting from numeric
|
|
SELECT x, x::int4 AS int4_value
|
|
FROM (VALUES (-2.5::numeric),
|
|
(-1.5::numeric),
|
|
(-0.5::numeric),
|
|
(0.0::numeric),
|
|
(0.5::numeric),
|
|
(1.5::numeric),
|
|
(2.5::numeric)) t(x);
|
|
x | int4_value
|
|
------+------------
|
|
-2.5 | -3
|
|
-1.5 | -2
|
|
-0.5 | -1
|
|
0.0 | 0
|
|
0.5 | 1
|
|
1.5 | 2
|
|
2.5 | 3
|
|
(7 rows)
|
|
|