mirror of https://github.com/postgres/postgres
parent
8223f70e52
commit
41543b0618
@ -0,0 +1,234 @@ |
||||
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: floating point exception! The last floating point operation either exceeded legal ranges or was a divide by zero |
||||
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) |
||||
|
||||
@ -0,0 +1,206 @@ |
||||
QUERY: CREATE TABLE INT2_TBL(f1 int2); |
||||
QUERY: INSERT INTO INT2_TBL(f1) VALUES ('0'); |
||||
QUERY: INSERT INTO INT2_TBL(f1) VALUES ('1234'); |
||||
QUERY: INSERT INTO INT2_TBL(f1) VALUES ('-1234'); |
||||
QUERY: INSERT INTO INT2_TBL(f1) VALUES ('34.5'); |
||||
ERROR: pg_atoi: error in "34.5": can't parse ".5" |
||||
QUERY: INSERT INTO INT2_TBL(f1) VALUES ('32767'); |
||||
QUERY: INSERT INTO INT2_TBL(f1) VALUES ('-32767'); |
||||
QUERY: INSERT INTO INT2_TBL(f1) VALUES ('100000'); |
||||
ERROR: pg_atoi: error reading "100000": Result too large |
||||
QUERY: INSERT INTO INT2_TBL(f1) VALUES ('asdf'); |
||||
ERROR: pg_atoi: error in "asdf": can't parse "asdf" |
||||
QUERY: SELECT '' AS five, INT2_TBL.*; |
||||
five| f1 |
||||
----+------ |
||||
| 0 |
||||
| 1234 |
||||
| -1234 |
||||
| 32767 |
||||
|-32767 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS four, i.* FROM INT2_TBL i WHERE i.f1 <> '0'::int2; |
||||
four| f1 |
||||
----+------ |
||||
| 1234 |
||||
| -1234 |
||||
| 32767 |
||||
|-32767 |
||||
(4 rows) |
||||
|
||||
QUERY: SELECT '' AS four, i.* FROM INT2_TBL i WHERE i.f1 <> '0'::int4; |
||||
four| f1 |
||||
----+------ |
||||
| 1234 |
||||
| -1234 |
||||
| 32767 |
||||
|-32767 |
||||
(4 rows) |
||||
|
||||
QUERY: SELECT '' AS one, i.* FROM INT2_TBL i WHERE i.f1 = '0'::int2; |
||||
one|f1 |
||||
---+-- |
||||
| 0 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '' AS one, i.* FROM INT2_TBL i WHERE i.f1 = '0'::int4; |
||||
one|f1 |
||||
---+-- |
||||
| 0 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '' AS two, i.* FROM INT2_TBL i WHERE i.f1 < '0'::int2; |
||||
two| f1 |
||||
---+------ |
||||
| -1234 |
||||
|-32767 |
||||
(2 rows) |
||||
|
||||
QUERY: SELECT '' AS two, i.* FROM INT2_TBL i WHERE i.f1 < '0'::int4; |
||||
two| f1 |
||||
---+------ |
||||
| -1234 |
||||
|-32767 |
||||
(2 rows) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT2_TBL i WHERE i.f1 <= '0'::int2; |
||||
three| f1 |
||||
-----+------ |
||||
| 0 |
||||
| -1234 |
||||
|-32767 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT2_TBL i WHERE i.f1 <= '0'::int4; |
||||
three| f1 |
||||
-----+------ |
||||
| 0 |
||||
| -1234 |
||||
|-32767 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS two, i.* FROM INT2_TBL i WHERE i.f1 > '0'::int2; |
||||
two| f1 |
||||
---+----- |
||||
| 1234 |
||||
|32767 |
||||
(2 rows) |
||||
|
||||
QUERY: SELECT '' AS two, i.* FROM INT2_TBL i WHERE i.f1 > '0'::int4; |
||||
two| f1 |
||||
---+----- |
||||
| 1234 |
||||
|32767 |
||||
(2 rows) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT2_TBL i WHERE i.f1 >= '0'::int2; |
||||
three| f1 |
||||
-----+----- |
||||
| 0 |
||||
| 1234 |
||||
|32767 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT2_TBL i WHERE i.f1 >= '0'::int4; |
||||
three| f1 |
||||
-----+----- |
||||
| 0 |
||||
| 1234 |
||||
|32767 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS one, i.* FROM INT2_TBL i WHERE (i.f1 % '2'::int2) = '1'::int2; |
||||
one| f1 |
||||
---+----- |
||||
|32767 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT2_TBL i WHERE (i.f1 % '2'::int4) = '0'::int2; |
||||
three| f1 |
||||
-----+----- |
||||
| 0 |
||||
| 1234 |
||||
|-1234 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 * '2'::int2 AS x FROM INT2_TBL i; |
||||
five| f1| x |
||||
----+------+----- |
||||
| 0| 0 |
||||
| 1234| 2468 |
||||
| -1234|-2468 |
||||
| 32767| -2 |
||||
|-32767| 2 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 * '2'::int4 AS x FROM INT2_TBL i; |
||||
five| f1| x |
||||
----+------+------ |
||||
| 0| 0 |
||||
| 1234| 2468 |
||||
| -1234| -2468 |
||||
| 32767| 65534 |
||||
|-32767|-65534 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 + '2'::int2 AS x FROM INT2_TBL i; |
||||
five| f1| x |
||||
----+------+------ |
||||
| 0| 2 |
||||
| 1234| 1236 |
||||
| -1234| -1232 |
||||
| 32767|-32767 |
||||
|-32767|-32765 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 + '2'::int4 AS x FROM INT2_TBL i; |
||||
five| f1| x |
||||
----+------+------ |
||||
| 0| 2 |
||||
| 1234| 1236 |
||||
| -1234| -1232 |
||||
| 32767| 32769 |
||||
|-32767|-32765 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 - '2'::int2 AS x FROM INT2_TBL i; |
||||
five| f1| x |
||||
----+------+----- |
||||
| 0| -2 |
||||
| 1234| 1232 |
||||
| -1234|-1236 |
||||
| 32767|32765 |
||||
|-32767|32767 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 - '2'::int4 AS x FROM INT2_TBL i; |
||||
five| f1| x |
||||
----+------+------ |
||||
| 0| -2 |
||||
| 1234| 1232 |
||||
| -1234| -1236 |
||||
| 32767| 32765 |
||||
|-32767|-32769 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 / '2'::int2 AS x FROM INT2_TBL i; |
||||
five| f1| x |
||||
----+------+------ |
||||
| 0| 0 |
||||
| 1234| 617 |
||||
| -1234| -617 |
||||
| 32767| 16383 |
||||
|-32767|-16383 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 / '2'::int4 AS x FROM INT2_TBL i; |
||||
five| f1| x |
||||
----+------+------ |
||||
| 0| 0 |
||||
| 1234| 617 |
||||
| -1234| -617 |
||||
| 32767| 16383 |
||||
|-32767|-16383 |
||||
(5 rows) |
||||
|
||||
@ -0,0 +1,302 @@ |
||||
QUERY: CREATE TABLE INT4_TBL(f1 int4); |
||||
QUERY: INSERT INTO INT4_TBL(f1) VALUES ('0'); |
||||
QUERY: INSERT INTO INT4_TBL(f1) VALUES ('123456'); |
||||
QUERY: INSERT INTO INT4_TBL(f1) VALUES ('-123456'); |
||||
QUERY: INSERT INTO INT4_TBL(f1) VALUES ('34.5'); |
||||
ERROR: pg_atoi: error in "34.5": can't parse ".5" |
||||
QUERY: INSERT INTO INT4_TBL(f1) VALUES ('2147483647'); |
||||
QUERY: INSERT INTO INT4_TBL(f1) VALUES ('-2147483647'); |
||||
QUERY: INSERT INTO INT4_TBL(f1) VALUES ('1000000000000'); |
||||
ERROR: pg_atoi: error reading "1000000000000": Result too large |
||||
QUERY: INSERT INTO INT4_TBL(f1) VALUES ('asdf'); |
||||
ERROR: pg_atoi: error in "asdf": can't parse "asdf" |
||||
QUERY: SELECT '' AS five, INT4_TBL.*; |
||||
five| f1 |
||||
----+----------- |
||||
| 0 |
||||
| 123456 |
||||
| -123456 |
||||
| 2147483647 |
||||
|-2147483647 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS four, i.* FROM INT4_TBL i WHERE i.f1 <> '0'::int2; |
||||
four| f1 |
||||
----+----------- |
||||
| 123456 |
||||
| -123456 |
||||
| 2147483647 |
||||
|-2147483647 |
||||
(4 rows) |
||||
|
||||
QUERY: SELECT '' AS four, i.* FROM INT4_TBL i WHERE i.f1 <> '0'::int4; |
||||
four| f1 |
||||
----+----------- |
||||
| 123456 |
||||
| -123456 |
||||
| 2147483647 |
||||
|-2147483647 |
||||
(4 rows) |
||||
|
||||
QUERY: SELECT '' AS one, i.* FROM INT4_TBL i WHERE i.f1 = '0'::int2; |
||||
one|f1 |
||||
---+-- |
||||
| 0 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '' AS one, i.* FROM INT4_TBL i WHERE i.f1 = '0'::int4; |
||||
one|f1 |
||||
---+-- |
||||
| 0 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 < '0'::int2; |
||||
two| f1 |
||||
---+----------- |
||||
| -123456 |
||||
|-2147483647 |
||||
(2 rows) |
||||
|
||||
QUERY: SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 < '0'::int4; |
||||
two| f1 |
||||
---+----------- |
||||
| -123456 |
||||
|-2147483647 |
||||
(2 rows) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 <= '0'::int2; |
||||
three| f1 |
||||
-----+----------- |
||||
| 0 |
||||
| -123456 |
||||
|-2147483647 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 <= '0'::int4; |
||||
three| f1 |
||||
-----+----------- |
||||
| 0 |
||||
| -123456 |
||||
|-2147483647 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 > '0'::int2; |
||||
two| f1 |
||||
---+---------- |
||||
| 123456 |
||||
|2147483647 |
||||
(2 rows) |
||||
|
||||
QUERY: SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 > '0'::int4; |
||||
two| f1 |
||||
---+---------- |
||||
| 123456 |
||||
|2147483647 |
||||
(2 rows) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 >= '0'::int2; |
||||
three| f1 |
||||
-----+---------- |
||||
| 0 |
||||
| 123456 |
||||
|2147483647 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 >= '0'::int4; |
||||
three| f1 |
||||
-----+---------- |
||||
| 0 |
||||
| 123456 |
||||
|2147483647 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS one, i.* FROM INT4_TBL i WHERE (i.f1 % '2'::int2) = '1'::int2; |
||||
one| f1 |
||||
---+---------- |
||||
|2147483647 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '' AS three, i.* FROM INT4_TBL i WHERE (i.f1 % '2'::int4) = '0'::int2; |
||||
three| f1 |
||||
-----+------- |
||||
| 0 |
||||
| 123456 |
||||
|-123456 |
||||
(3 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 * '2'::int2 AS x FROM INT4_TBL i; |
||||
five| f1| x |
||||
----+-----------+------- |
||||
| 0| 0 |
||||
| 123456| 246912 |
||||
| -123456|-246912 |
||||
| 2147483647| -2 |
||||
|-2147483647| 2 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 * '2'::int4 AS x FROM INT4_TBL i; |
||||
five| f1| x |
||||
----+-----------+------- |
||||
| 0| 0 |
||||
| 123456| 246912 |
||||
| -123456|-246912 |
||||
| 2147483647| -2 |
||||
|-2147483647| 2 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 + '2'::int2 AS x FROM INT4_TBL i; |
||||
five| f1| x |
||||
----+-----------+----------- |
||||
| 0| 2 |
||||
| 123456| 123458 |
||||
| -123456| -123454 |
||||
| 2147483647|-2147483647 |
||||
|-2147483647|-2147483645 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 + '2'::int4 AS x FROM INT4_TBL i; |
||||
five| f1| x |
||||
----+-----------+----------- |
||||
| 0| 2 |
||||
| 123456| 123458 |
||||
| -123456| -123454 |
||||
| 2147483647|-2147483647 |
||||
|-2147483647|-2147483645 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 - '2'::int2 AS x FROM INT4_TBL i; |
||||
five| f1| x |
||||
----+-----------+---------- |
||||
| 0| -2 |
||||
| 123456| 123454 |
||||
| -123456| -123458 |
||||
| 2147483647|2147483645 |
||||
|-2147483647|2147483647 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 - '2'::int4 AS x FROM INT4_TBL i; |
||||
five| f1| x |
||||
----+-----------+---------- |
||||
| 0| -2 |
||||
| 123456| 123454 |
||||
| -123456| -123458 |
||||
| 2147483647|2147483645 |
||||
|-2147483647|2147483647 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 / '2'::int2 AS x FROM INT4_TBL i; |
||||
five| f1| x |
||||
----+-----------+----------- |
||||
| 0| 0 |
||||
| 123456| 61728 |
||||
| -123456| -61728 |
||||
| 2147483647| 1073741823 |
||||
|-2147483647|-1073741823 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT '' AS five, i.f1, i.f1 / '2'::int4 AS x FROM INT4_TBL i; |
||||
five| f1| x |
||||
----+-----------+----------- |
||||
| 0| 0 |
||||
| 123456| 61728 |
||||
| -123456| -61728 |
||||
| 2147483647| 1073741823 |
||||
|-2147483647|-1073741823 |
||||
(5 rows) |
||||
|
||||
QUERY: SELECT -2+3 AS one; |
||||
one |
||||
--- |
||||
1 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT 4-2 AS two; |
||||
two |
||||
--- |
||||
2 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT 2- -1 AS three; |
||||
three |
||||
----- |
||||
3 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT 2 - -2 AS four; |
||||
four |
||||
---- |
||||
4 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '2'::int2 * '2'::int2 = '16'::int2 / '4'::int2 AS true; |
||||
true |
||||
---- |
||||
t |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '2'::int4 * '2'::int2 = '16'::int2 / '4'::int4 AS true; |
||||
true |
||||
---- |
||||
t |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '2'::int2 * '2'::int4 = '16'::int4 / '4'::int2 AS true; |
||||
true |
||||
---- |
||||
t |
||||
(1 row) |
||||
|
||||
QUERY: SELECT '1000'::int4 < '999'::int4 AS false; |
||||
false |
||||
----- |
||||
f |
||||
(1 row) |
||||
|
||||
QUERY: SELECT 4! AS twenty_four; |
||||
twenty_four |
||||
----------- |
||||
24 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT !!3 AS six; |
||||
six |
||||
--- |
||||
6 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 AS ten; |
||||
ten |
||||
--- |
||||
10 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT 2 + 2 / 2 AS three; |
||||
three |
||||
----- |
||||
3 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT (2 + 2) / 2 AS two; |
||||
two |
||||
--- |
||||
2 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT dsqrt('64'::float8) AS eight; |
||||
eight |
||||
----- |
||||
8 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT |/'64'::float8 AS eight; |
||||
eight |
||||
----- |
||||
8 |
||||
(1 row) |
||||
|
||||
QUERY: SELECT ||/'27'::float8 AS three; |
||||
three |
||||
----- |
||||
3 |
||||
(1 row) |
||||
|
||||
Loading…
Reference in new issue