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Postgres FD Implementation
Commit 5e3eda41 authored by Bruce Momjian's avatar Bruce Momjian
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> Here is an extension of the regression test suite for Digital Unix 

(Alpha).
>
> Andreas Kardos
parent 27b3f7c4
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src/test/regress/expected/float8-fp-exception.out 0 → 100644
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--
-- FLOAT8
--
CREATE TABLE FLOAT8_TBL(f1 float8);
INSERT INTO FLOAT8_TBL(f1) VALUES ('0.0');
INSERT INTO FLOAT8_TBL(f1) VALUES ('1004.30');
INSERT INTO FLOAT8_TBL(f1) VALUES ('-34.84');
INSERT INTO FLOAT8_TBL(f1) VALUES ('1.2345678901234e+200');
INSERT INTO FLOAT8_TBL(f1) VALUES ('1.2345678901234e-200');
SELECT '' AS five, FLOAT8_TBL.*;
five | f1
------+----------------------
| 0
| 1004.3
| -34.84
| 1.2345678901234e+200
| 1.2345678901234e-200
(5 rows)
SELECT '' AS four, f.* FROM FLOAT8_TBL f WHERE f.f1 <> '1004.3';
four | f1
------+----------------------
| 0
| -34.84
| 1.2345678901234e+200
| 1.2345678901234e-200
(4 rows)
SELECT '' AS one, f.* FROM FLOAT8_TBL f WHERE f.f1 = '1004.3';
one | f1
-----+--------
| 1004.3
(1 row)
SELECT '' AS three, f.* FROM FLOAT8_TBL f WHERE '1004.3' > f.f1;
three | f1
-------+----------------------
| 0
| -34.84
| 1.2345678901234e-200
(3 rows)
SELECT '' AS three, f.* FROM FLOAT8_TBL f WHERE f.f1 < '1004.3';
three | f1
-------+----------------------
| 0
| -34.84
| 1.2345678901234e-200
(3 rows)
SELECT '' AS four, f.* FROM FLOAT8_TBL f WHERE '1004.3' >= f.f1;
four | f1
------+----------------------
| 0
| 1004.3
| -34.84
| 1.2345678901234e-200
(4 rows)
SELECT '' AS four, f.* FROM FLOAT8_TBL f WHERE f.f1 <= '1004.3';
four | f1
------+----------------------
| 0
| 1004.3
| -34.84
| 1.2345678901234e-200
(4 rows)
SELECT '' AS three, f.f1, f.f1 * '-10' AS x
FROM FLOAT8_TBL f
WHERE f.f1 > '0.0';
three | f1 | x
-------+----------------------+-----------------------
| 1004.3 | -10043
| 1.2345678901234e+200 | -1.2345678901234e+201
| 1.2345678901234e-200 | -1.2345678901234e-199
(3 rows)
SELECT '' AS three, f.f1, f.f1 + '-10' AS x
FROM FLOAT8_TBL f
WHERE f.f1 > '0.0';
three | f1 | x
-------+----------------------+----------------------
| 1004.3 | 994.3
| 1.2345678901234e+200 | 1.2345678901234e+200
| 1.2345678901234e-200 | -10
(3 rows)
SELECT '' AS three, f.f1, f.f1 / '-10' AS x
FROM FLOAT8_TBL f
WHERE f.f1 > '0.0';
three | f1 | x
-------+----------------------+-----------------------
| 1004.3 | -100.43
| 1.2345678901234e+200 | -1.2345678901234e+199
| 1.2345678901234e-200 | -1.2345678901234e-201
(3 rows)
SELECT '' AS three, f.f1, f.f1 - '-10' AS x
FROM FLOAT8_TBL f
WHERE f.f1 > '0.0';
three | f1 | x
-------+----------------------+----------------------
| 1004.3 | 1014.3
| 1.2345678901234e+200 | 1.2345678901234e+200
| 1.2345678901234e-200 | 10
(3 rows)
SELECT '' AS one, f.f1 ^ '2.0' AS square_f1
FROM FLOAT8_TBL f where f.f1 = '1004.3';
one | square_f1
-----+------------
| 1008618.49
(1 row)
-- absolute value
SELECT '' AS five, f.f1, @f.f1 AS abs_f1
FROM FLOAT8_TBL f;
five | f1 | abs_f1
------+----------------------+----------------------
| 0 | 0
| 1004.3 | 1004.3
| -34.84 | 34.84
| 1.2345678901234e+200 | 1.2345678901234e+200
| 1.2345678901234e-200 | 1.2345678901234e-200
(5 rows)
-- truncate
SELECT '' AS five, f.f1, %f.f1 AS trunc_f1
FROM FLOAT8_TBL f;
five | f1 | trunc_f1
------+----------------------+----------------------
| 0 | 0
| 1004.3 | 1004
| -34.84 | -34
| 1.2345678901234e+200 | 1.2345678901234e+200
| 1.2345678901234e-200 | 0
(5 rows)
-- round
SELECT '' AS five, f.f1, f.f1 % AS round_f1
FROM FLOAT8_TBL f;
five | f1 | round_f1
------+----------------------+----------------------
| 0 | 0
| 1004.3 | 1004
| -34.84 | -35
| 1.2345678901234e+200 | 1.2345678901234e+200
| 1.2345678901234e-200 | 0
(5 rows)
-- square root
SELECT '' AS three, f.f1, |/f.f1 AS sqrt_f1
FROM FLOAT8_TBL f
WHERE f.f1 > '0.0';
three | f1 | sqrt_f1
-------+----------------------+-----------------------
| 1004.3 | 31.6906926399535
| 1.2345678901234e+200 | 1.11111110611109e+100
| 1.2345678901234e-200 | 1.11111110611109e-100
(3 rows)
-- take exp of ln(f.f1)
SELECT '' AS three, f.f1, : ( ; f.f1) AS exp_ln_f1
FROM FLOAT8_TBL f
WHERE f.f1 > '0.0';
three | f1 | exp_ln_f1
-------+----------------------+-----------------------
| 1004.3 | 1004.3
| 1.2345678901234e+200 | 1.23456789012338e+200
| 1.2345678901234e-200 | 1.23456789012339e-200
(3 rows)
-- cube root
SELECT '' AS five, f.f1, ||/f.f1 AS cbrt_f1 FROM FLOAT8_TBL f;
five | f1 | cbrt_f1
------+----------------------+----------------------
| 0 | 0
| 1004.3 | 10.014312837827
| -34.84 | -3.26607421344208
| 1.2345678901234e+200 | 4.97933859234765e+66
| 1.2345678901234e-200 | 2.3112042409018e-67
(5 rows)
SELECT '' AS five, FLOAT8_TBL.*;
five | f1
------+----------------------
| 0
| 1004.3
| -34.84
| 1.2345678901234e+200
| 1.2345678901234e-200
(5 rows)
UPDATE FLOAT8_TBL
SET f1 = FLOAT8_TBL.f1 * '-1'
WHERE FLOAT8_TBL.f1 > '0.0';
SELECT '' AS bad, f.f1 * '1e200' from FLOAT8_TBL f;
ERROR: floating point exception! The last floating point operation either exceeded legal ranges or was a divide by zero
SELECT '' AS bad, f.f1 ^ '1e200' from FLOAT8_TBL f;
ERROR: pow() result is out of range
SELECT '' AS bad, (; (f.f1)) from FLOAT8_TBL f where f.f1 = '0.0' ;
ERROR: can't take log of zero
SELECT '' AS bad, (; (f.f1)) from FLOAT8_TBL f where f.f1 < '0.0' ;
ERROR: can't take log of a negative number
SELECT '' AS bad, : (f.f1) from FLOAT8_TBL f;
ERROR: exp() result is out of range
SELECT '' AS bad, f.f1 / '0.0' from FLOAT8_TBL f;
ERROR: float8div: divide by zero error
SELECT '' AS five, FLOAT8_TBL.*;
five | f1
------+-----------------------
| 0
| -34.84
| -1004.3
| -1.2345678901234e+200
| -1.2345678901234e-200
(5 rows)
-- test for over and under flow
INSERT INTO FLOAT8_TBL(f1) VALUES ('10e400');
ERROR: Input '10e400' is out of range for float8
INSERT INTO FLOAT8_TBL(f1) VALUES ('-10e400');
ERROR: Input '-10e400' is out of range for float8
INSERT INTO FLOAT8_TBL(f1) VALUES ('10e-400');
ERROR: Input '10e-400' is out of range for float8
INSERT INTO FLOAT8_TBL(f1) VALUES ('-10e-400');
ERROR: Input '-10e-400' is out of range for float8
-- maintain external table consistency across platforms
-- delete all values and reinsert well-behaved ones
DELETE FROM FLOAT8_TBL;
INSERT INTO FLOAT8_TBL(f1) VALUES ('0.0');
INSERT INTO FLOAT8_TBL(f1) VALUES ('-34.84');
INSERT INTO FLOAT8_TBL(f1) VALUES ('-1004.30');
INSERT INTO FLOAT8_TBL(f1) VALUES ('-1.2345678901234e+200');
INSERT INTO FLOAT8_TBL(f1) VALUES ('-1.2345678901234e-200');
SELECT '' AS five, FLOAT8_TBL.*;
five | f1
------+-----------------------
| 0
| -34.84
| -1004.3
| -1.2345678901234e+200
| -1.2345678901234e-200
(5 rows)
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