|
|
|
|
@ -1,12 +1,15 @@ |
|
|
|
|
QUERY: CREATE TABLE FLOAT8_TBL(f1 float8); |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('0.0'); |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('1004.30'); |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('-34.84'); |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('1.2345678901234e+200'); |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('1.2345678901234e-200'); |
|
|
|
|
QUERY: SELECT '' AS five, FLOAT8_TBL.*; |
|
|
|
|
-- |
|
|
|
|
-- 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 |
|
|
|
|
@ -14,106 +17,107 @@ five|f1 |
|
|
|
|
| 1.2345678901234e-200 |
|
|
|
|
(5 rows) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS four, f.* FROM FLOAT8_TBL f WHERE f.f1 <> '1004.3'; |
|
|
|
|
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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS one, f.* FROM FLOAT8_TBL f WHERE f.f1 = '1004.3'; |
|
|
|
|
SELECT '' AS one, f.* FROM FLOAT8_TBL f WHERE f.f1 = '1004.3'; |
|
|
|
|
one | f1 |
|
|
|
|
---+------ |
|
|
|
|
-----+-------- |
|
|
|
|
| 1004.3 |
|
|
|
|
(1 row) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS three, f.* FROM FLOAT8_TBL f WHERE '1004.3' > f.f1; |
|
|
|
|
SELECT '' AS three, f.* FROM FLOAT8_TBL f WHERE '1004.3' > f.f1; |
|
|
|
|
three | f1 |
|
|
|
|
-----+-------------------- |
|
|
|
|
-------+---------------------- |
|
|
|
|
| 0 |
|
|
|
|
| -34.84 |
|
|
|
|
| 1.2345678901234e-200 |
|
|
|
|
(3 rows) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS three, f.* FROM FLOAT8_TBL f WHERE f.f1 < '1004.3'; |
|
|
|
|
SELECT '' AS three, f.* FROM FLOAT8_TBL f WHERE f.f1 < '1004.3'; |
|
|
|
|
three | f1 |
|
|
|
|
-----+-------------------- |
|
|
|
|
-------+---------------------- |
|
|
|
|
| 0 |
|
|
|
|
| -34.84 |
|
|
|
|
| 1.2345678901234e-200 |
|
|
|
|
(3 rows) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS four, f.* FROM FLOAT8_TBL f WHERE '1004.3' >= f.f1; |
|
|
|
|
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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS four, f.* FROM FLOAT8_TBL f WHERE f.f1 <= '1004.3'; |
|
|
|
|
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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS three, f.f1, f.f1 * '-10' AS x |
|
|
|
|
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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS three, f.f1, f.f1 + '-10' AS x |
|
|
|
|
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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS three, f.f1, f.f1 / '-10' AS x |
|
|
|
|
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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS three, f.f1, f.f1 - '-10' AS x |
|
|
|
|
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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS one, f.f1 ^ '2.0' AS square_f1 |
|
|
|
|
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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS five, f.f1, @f.f1 AS abs_f1 |
|
|
|
|
-- 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 |
|
|
|
|
@ -121,10 +125,11 @@ five|f1 |abs_f1 |
|
|
|
|
| 1.2345678901234e-200 | 1.2345678901234e-200 |
|
|
|
|
(5 rows) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS five, f.f1, %f.f1 AS trunc_f1 |
|
|
|
|
-- 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 |
|
|
|
|
@ -132,10 +137,11 @@ five|f1 |trunc_f1 |
|
|
|
|
| 1.2345678901234e-200 | 0 |
|
|
|
|
(5 rows) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS five, f.f1, f.f1 % AS round_f1 |
|
|
|
|
-- 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 |
|
|
|
|
@ -143,29 +149,32 @@ five|f1 |round_f1 |
|
|
|
|
| 1.2345678901234e-200 | 0 |
|
|
|
|
(5 rows) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS three, f.f1, |/f.f1 AS sqrt_f1 |
|
|
|
|
-- 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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS three, f.f1, : ( ; f.f1) AS exp_ln_f1 |
|
|
|
|
-- 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) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS five, f.f1, ||/f.f1 AS cbrt_f1 FROM FLOAT8_TBL f; |
|
|
|
|
-- 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 |
|
|
|
|
@ -173,9 +182,9 @@ five|f1 |cbrt_f1 |
|
|
|
|
| 1.2345678901234e-200 | 2.3112042409018e-67 |
|
|
|
|
(5 rows) |
|
|
|
|
|
|
|
|
|
QUERY: SELECT '' AS five, FLOAT8_TBL.*; |
|
|
|
|
SELECT '' AS five, FLOAT8_TBL.*; |
|
|
|
|
five | f1 |
|
|
|
|
----+-------------------- |
|
|
|
|
------+---------------------- |
|
|
|
|
| 0 |
|
|
|
|
| 1004.3 |
|
|
|
|
| -34.84 |
|
|
|
|
@ -183,24 +192,24 @@ five|f1 |
|
|
|
|
| 1.2345678901234e-200 |
|
|
|
|
(5 rows) |
|
|
|
|
|
|
|
|
|
QUERY: UPDATE FLOAT8_TBL |
|
|
|
|
UPDATE FLOAT8_TBL |
|
|
|
|
SET f1 = FLOAT8_TBL.f1 * '-1' |
|
|
|
|
WHERE FLOAT8_TBL.f1 > '0.0'; |
|
|
|
|
QUERY: SELECT '' AS bad, f.f1 * '1e200' from FLOAT8_TBL f; |
|
|
|
|
SELECT '' AS bad, f.f1 * '1e200' from FLOAT8_TBL f; |
|
|
|
|
ERROR: Bad float8 input format -- overflow |
|
|
|
|
QUERY: SELECT '' AS bad, f.f1 ^ '1e200' from FLOAT8_TBL f; |
|
|
|
|
SELECT '' AS bad, f.f1 ^ '1e200' from FLOAT8_TBL f; |
|
|
|
|
ERROR: pow() result is out of range |
|
|
|
|
QUERY: SELECT '' AS bad, (; (f.f1)) from FLOAT8_TBL f where f.f1 = '0.0' ; |
|
|
|
|
SELECT '' AS bad, (; (f.f1)) from FLOAT8_TBL f where f.f1 = '0.0' ; |
|
|
|
|
ERROR: can't take log of zero |
|
|
|
|
QUERY: SELECT '' AS bad, (; (f.f1)) from FLOAT8_TBL f where f.f1 < '0.0' ; |
|
|
|
|
SELECT '' AS bad, (; (f.f1)) from FLOAT8_TBL f where f.f1 < '0.0' ; |
|
|
|
|
ERROR: can't take log of a negative number |
|
|
|
|
QUERY: SELECT '' AS bad, : (f.f1) from FLOAT8_TBL f; |
|
|
|
|
SELECT '' AS bad, : (f.f1) from FLOAT8_TBL f; |
|
|
|
|
ERROR: exp() result is out of range |
|
|
|
|
QUERY: SELECT '' AS bad, f.f1 / '0.0' from FLOAT8_TBL f; |
|
|
|
|
SELECT '' AS bad, f.f1 / '0.0' from FLOAT8_TBL f; |
|
|
|
|
ERROR: float8div: divide by zero error |
|
|
|
|
QUERY: SELECT '' AS five, FLOAT8_TBL.*; |
|
|
|
|
SELECT '' AS five, FLOAT8_TBL.*; |
|
|
|
|
five | f1 |
|
|
|
|
----+--------------------- |
|
|
|
|
------+----------------------- |
|
|
|
|
| 0 |
|
|
|
|
| -34.84 |
|
|
|
|
| -1004.3 |
|
|
|
|
@ -208,23 +217,26 @@ five|f1 |
|
|
|
|
| -1.2345678901234e-200 |
|
|
|
|
(5 rows) |
|
|
|
|
|
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('10e400'); |
|
|
|
|
-- test for over and under flow |
|
|
|
|
INSERT INTO FLOAT8_TBL(f1) VALUES ('10e400'); |
|
|
|
|
ERROR: Input '10e400' is out of range for float8 |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('-10e400'); |
|
|
|
|
INSERT INTO FLOAT8_TBL(f1) VALUES ('-10e400'); |
|
|
|
|
ERROR: Input '-10e400' is out of range for float8 |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('10e-400'); |
|
|
|
|
INSERT INTO FLOAT8_TBL(f1) VALUES ('10e-400'); |
|
|
|
|
ERROR: Input '10e-400' is out of range for float8 |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('-10e-400'); |
|
|
|
|
INSERT INTO FLOAT8_TBL(f1) VALUES ('-10e-400'); |
|
|
|
|
ERROR: Input '-10e-400' is out of range for float8 |
|
|
|
|
QUERY: DELETE FROM FLOAT8_TBL; |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('0.0'); |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('-34.84'); |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('-1004.30'); |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('-1.2345678901234e+200'); |
|
|
|
|
QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('-1.2345678901234e-200'); |
|
|
|
|
QUERY: SELECT '' AS five, FLOAT8_TBL.*; |
|
|
|
|
-- 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 |
|
|
|
|
|