3
-- Test various combinations of numeric types and functions.
6
-- Test implicit type conversions
7
-- This fails for Postgres v6.1 (and earlier?)
8
-- so let's try explicit conversions for now - tgl 97/05/07
10
CREATE TABLE TEMP_FLOAT (f1 FLOAT8);
11
INSERT INTO TEMP_FLOAT (f1)
12
SELECT float8(f1) FROM INT4_TBL;
13
INSERT INTO TEMP_FLOAT (f1)
14
SELECT float8(f1) FROM INT2_TBL;
15
SELECT '' AS ten, f1 FROM TEMP_FLOAT
32
CREATE TABLE TEMP_INT4 (f1 INT4);
33
INSERT INTO TEMP_INT4 (f1)
34
SELECT int4(f1) FROM FLOAT8_TBL
35
WHERE (f1 > -2147483647) AND (f1 < 2147483647);
36
INSERT INTO TEMP_INT4 (f1)
37
SELECT int4(f1) FROM INT2_TBL;
38
SELECT '' AS nine, f1 FROM TEMP_INT4
54
CREATE TABLE TEMP_INT2 (f1 INT2);
55
INSERT INTO TEMP_INT2 (f1)
56
SELECT int2(f1) FROM FLOAT8_TBL
57
WHERE (f1 >= -32767) AND (f1 <= 32767);
58
INSERT INTO TEMP_INT2 (f1)
59
SELECT int2(f1) FROM INT4_TBL
60
WHERE (f1 >= -32767) AND (f1 <= 32767);
61
SELECT '' AS five, f1 FROM TEMP_INT2
73
-- Group-by combinations
75
CREATE TABLE TEMP_GROUP (f1 INT4, f2 INT4, f3 FLOAT8);
76
INSERT INTO TEMP_GROUP
77
SELECT 1, (- i.f1), (- f.f1)
78
FROM INT4_TBL i, FLOAT8_TBL f;
79
INSERT INTO TEMP_GROUP
81
FROM INT4_TBL i, FLOAT8_TBL f;
82
SELECT DISTINCT f1 AS two FROM TEMP_GROUP ORDER BY 1;
89
SELECT f1 AS two, max(f3) AS max_float, min(f3) as min_float
92
ORDER BY two, max_float, min_float;
93
two | max_float | min_float
94
-----+----------------------+-----------------------
95
1 | 1.2345678901234e+200 | -0
96
2 | 0 | -1.2345678901234e+200
99
-- GROUP BY a result column name is not legal per SQL92, but we accept it
100
-- anyway (if the name is not the name of any column exposed by FROM).
101
SELECT f1 AS two, max(f3) AS max_float, min(f3) AS min_float
104
ORDER BY two, max_float, min_float;
105
two | max_float | min_float
106
-----+----------------------+-----------------------
107
1 | 1.2345678901234e+200 | -0
108
2 | 0 | -1.2345678901234e+200
111
SELECT f1 AS two, (max(f3) + 1) AS max_plus_1, (min(f3) - 1) AS min_minus_1
114
ORDER BY two, min_minus_1;
115
two | max_plus_1 | min_minus_1
116
-----+----------------------+-----------------------
117
1 | 1.2345678901234e+200 | -1
118
2 | 1 | -1.2345678901234e+200
122
max(f2) + min(f2) AS max_plus_min,
123
min(f3) - 1 AS min_minus_1
126
ORDER BY two, min_minus_1;
127
two | max_plus_min | min_minus_1
128
-----+--------------+-----------------------
130
2 | 0 | -1.2345678901234e+200
133
DROP TABLE TEMP_INT2;
134
DROP TABLE TEMP_INT4;
135
DROP TABLE TEMP_FLOAT;
136
DROP TABLE TEMP_GROUP;