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--
-- NUMEROLOGY
-- Test various combinations of numeric types and functions.
--
--
-- Test implicit type conversions
-- This fails for Postgres v6.1 (and earlier?)
-- so let's try explicit conversions for now - tgl 97/05/07
--
CREATE TABLE TEMP_FLOAT (f1 FLOAT8);
INSERT INTO TEMP_FLOAT (f1)
SELECT float8(f1) FROM INT4_TBL;
INSERT INTO TEMP_FLOAT (f1)
SELECT float8(f1) FROM INT2_TBL;
SELECT f1 FROM TEMP_FLOAT
ORDER BY f1;
-- int4
CREATE TABLE TEMP_INT4 (f1 INT4);
INSERT INTO TEMP_INT4 (f1)
SELECT int4(f1) FROM FLOAT8_TBL
WHERE (f1 > -2147483647) AND (f1 < 2147483647);
INSERT INTO TEMP_INT4 (f1)
SELECT int4(f1) FROM INT2_TBL;
SELECT f1 FROM TEMP_INT4
ORDER BY f1;
-- int2
CREATE TABLE TEMP_INT2 (f1 INT2);
INSERT INTO TEMP_INT2 (f1)
SELECT int2(f1) FROM FLOAT8_TBL
WHERE (f1 >= -32767) AND (f1 <= 32767);
INSERT INTO TEMP_INT2 (f1)
SELECT int2(f1) FROM INT4_TBL
WHERE (f1 >= -32767) AND (f1 <= 32767);
SELECT f1 FROM TEMP_INT2
ORDER BY f1;
--
-- Group-by combinations
--
CREATE TABLE TEMP_GROUP (f1 INT4, f2 INT4, f3 FLOAT8);
INSERT INTO TEMP_GROUP
SELECT 1, (- i.f1), (- f.f1)
FROM INT4_TBL i, FLOAT8_TBL f;
INSERT INTO TEMP_GROUP
SELECT 2, i.f1, f.f1
FROM INT4_TBL i, FLOAT8_TBL f;
SELECT DISTINCT f1 AS two FROM TEMP_GROUP ORDER BY 1;
SELECT f1 AS two, max(f3) AS max_float, min(f3) as min_float
FROM TEMP_GROUP
GROUP BY f1
ORDER BY two, max_float, min_float;
-- GROUP BY a result column name is not legal per SQL92, but we accept it
-- anyway (if the name is not the name of any column exposed by FROM).
SELECT f1 AS two, max(f3) AS max_float, min(f3) AS min_float
FROM TEMP_GROUP
GROUP BY two
ORDER BY two, max_float, min_float;
SELECT f1 AS two, (max(f3) + 1) AS max_plus_1, (min(f3) - 1) AS min_minus_1
FROM TEMP_GROUP
GROUP BY f1
ORDER BY two, min_minus_1;
SELECT f1 AS two,
max(f2) + min(f2) AS max_plus_min,
min(f3) - 1 AS min_minus_1
FROM TEMP_GROUP
GROUP BY f1
ORDER BY two, min_minus_1;
DROP TABLE TEMP_INT2;
DROP TABLE TEMP_INT4;
DROP TABLE TEMP_FLOAT;
DROP TABLE TEMP_GROUP;
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