float8.out
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:8k
- 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.*;
- five|f1
- ----+--------------------
- |0
- |1004.3
- |-34.84
- |1.2345678901234e+200
- |1.2345678901234e-200
- (5 rows)
- QUERY: 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';
- one| f1
- ---+------
- |1004.3
- (1 row)
- QUERY: 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';
- three| f1
- -----+--------------------
- | 0
- | -34.84
- |1.2345678901234e-200
- (3 rows)
- QUERY: 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';
- four| f1
- ----+--------------------
- | 0
- | 1004.3
- | -34.84
- |1.2345678901234e-200
- (4 rows)
- QUERY: 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
- 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
- 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
- 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
- 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
- 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)
- QUERY: 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)
- QUERY: 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)
- QUERY: 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
- 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;
- 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)
- QUERY: SELECT '' AS five, FLOAT8_TBL.*;
- five|f1
- ----+--------------------
- |0
- |1004.3
- |-34.84
- |1.2345678901234e+200
- |1.2345678901234e-200
- (5 rows)
- QUERY: 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;
- ERROR: Bad float8 input format -- overflow
- QUERY: 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' ;
- ERROR: can't take log of zero
- QUERY: 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;
- ERROR: exp() result is out of range
- QUERY: SELECT '' AS bad, f.f1 / '0.0' from FLOAT8_TBL f;
- ERROR: float8div: divide by zero error
- QUERY: SELECT '' AS five, FLOAT8_TBL.*;
- five|f1
- ----+---------------------
- |0
- |-34.84
- |-1004.3
- |-1.2345678901234e+200
- |-1.2345678901234e-200
- (5 rows)
- QUERY: INSERT INTO FLOAT8_TBL(f1) VALUES ('10e400');
- ERROR: Input '10e400' is out of range for float8
- QUERY: 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');
- ERROR: Input '10e-400' is out of range for float8
- QUERY: 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.*;
- five|f1
- ----+---------------------
- |0
- |-34.84
- |-1004.3
- |-1.2345678901234e+200
- |-1.2345678901234e-200
- (5 rows)