postgresql/src/test/regress/sql/int2.sql
Peter Eisentraut c06d6aa4c3 Clean up ancient test style
Many older tests where written in a style like

    SELECT '' AS two, i.* FROM INT2_TBL

where the first column indicated the number of expected result rows.
This has gotten increasingly out of date, as the test data fixtures
have expanded, so a lot of these were wrong and misleading.  Moreover,
this style isn't really necessary, since the psql output already shows
the number of result rows.

To clean this up, remove all those extra columns.

Discussion: https://www.postgresql.org/message-id/flat/1a25312b-2686-380d-3c67-7a69094a999f%40enterprisedb.com
2020-12-15 22:03:39 +01:00

114 lines
2.9 KiB
SQL

--
-- INT2
--
CREATE TABLE INT2_TBL(f1 int2);
INSERT INTO INT2_TBL(f1) VALUES ('0 ');
INSERT INTO INT2_TBL(f1) VALUES (' 1234 ');
INSERT INTO INT2_TBL(f1) VALUES (' -1234');
INSERT INTO INT2_TBL(f1) VALUES ('34.5');
-- largest and smallest values
INSERT INTO INT2_TBL(f1) VALUES ('32767');
INSERT INTO INT2_TBL(f1) VALUES ('-32767');
-- bad input values -- should give errors
INSERT INTO INT2_TBL(f1) VALUES ('100000');
INSERT INTO INT2_TBL(f1) VALUES ('asdf');
INSERT INTO INT2_TBL(f1) VALUES (' ');
INSERT INTO INT2_TBL(f1) VALUES ('- 1234');
INSERT INTO INT2_TBL(f1) VALUES ('4 444');
INSERT INTO INT2_TBL(f1) VALUES ('123 dt');
INSERT INTO INT2_TBL(f1) VALUES ('');
SELECT * FROM INT2_TBL;
SELECT i.* FROM INT2_TBL i WHERE i.f1 <> int2 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 <> int4 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 = int2 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 = int4 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 < int2 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 < int4 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 <= int2 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 <= int4 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 > int2 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 > int4 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 >= int2 '0';
SELECT i.* FROM INT2_TBL i WHERE i.f1 >= int4 '0';
-- positive odds
SELECT i.* FROM INT2_TBL i WHERE (i.f1 % int2 '2') = int2 '1';
-- any evens
SELECT i.* FROM INT2_TBL i WHERE (i.f1 % int4 '2') = int2 '0';
SELECT i.f1, i.f1 * int2 '2' AS x FROM INT2_TBL i;
SELECT i.f1, i.f1 * int2 '2' AS x FROM INT2_TBL i
WHERE abs(f1) < 16384;
SELECT i.f1, i.f1 * int4 '2' AS x FROM INT2_TBL i;
SELECT i.f1, i.f1 + int2 '2' AS x FROM INT2_TBL i;
SELECT i.f1, i.f1 + int2 '2' AS x FROM INT2_TBL i
WHERE f1 < 32766;
SELECT i.f1, i.f1 + int4 '2' AS x FROM INT2_TBL i;
SELECT i.f1, i.f1 - int2 '2' AS x FROM INT2_TBL i;
SELECT i.f1, i.f1 - int2 '2' AS x FROM INT2_TBL i
WHERE f1 > -32767;
SELECT i.f1, i.f1 - int4 '2' AS x FROM INT2_TBL i;
SELECT i.f1, i.f1 / int2 '2' AS x FROM INT2_TBL i;
SELECT i.f1, i.f1 / int4 '2' AS x FROM INT2_TBL i;
-- corner cases
SELECT (-1::int2<<15)::text;
SELECT ((-1::int2<<15)+1::int2)::text;
-- check sane handling of INT16_MIN overflow cases
SELECT (-32768)::int2 * (-1)::int2;
SELECT (-32768)::int2 / (-1)::int2;
SELECT (-32768)::int2 % (-1)::int2;
-- check rounding when casting from float
SELECT x, x::int2 AS int2_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);
-- check rounding when casting from numeric
SELECT x, x::int2 AS int2_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);