1997-04-05 13:26:55 +02:00
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-- *************testing built-in type int4 ****************
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--
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-- WARNING: int4 operators never check for over/underflow!
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-- Some of these answers are consequently numerically incorrect.
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--
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CREATE TABLE INT4_TBL(f1 int4);
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INSERT INTO INT4_TBL(f1) VALUES ('0');
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INSERT INTO INT4_TBL(f1) VALUES ('123456');
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INSERT INTO INT4_TBL(f1) VALUES ('-123456');
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INSERT INTO INT4_TBL(f1) VALUES ('34.5');
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-- largest and smallest values
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INSERT INTO INT4_TBL(f1) VALUES ('2147483647');
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INSERT INTO INT4_TBL(f1) VALUES ('-2147483647');
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-- bad input values -- should give warnings
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INSERT INTO INT4_TBL(f1) VALUES ('1000000000000');
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INSERT INTO INT4_TBL(f1) VALUES ('asdf');
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SELECT '' AS five, INT4_TBL.*;
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SELECT '' AS four, i.* FROM INT4_TBL i WHERE i.f1 <> '0'::int2;
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SELECT '' AS four, i.* FROM INT4_TBL i WHERE i.f1 <> '0'::int4;
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SELECT '' AS one, i.* FROM INT4_TBL i WHERE i.f1 = '0'::int2;
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SELECT '' AS one, i.* FROM INT4_TBL i WHERE i.f1 = '0'::int4;
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SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 < '0'::int2;
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SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 < '0'::int4;
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SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 <= '0'::int2;
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SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 <= '0'::int4;
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SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 > '0'::int2;
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SELECT '' AS two, i.* FROM INT4_TBL i WHERE i.f1 > '0'::int4;
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SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 >= '0'::int2;
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SELECT '' AS three, i.* FROM INT4_TBL i WHERE i.f1 >= '0'::int4;
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-- positive odds
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SELECT '' AS one, i.* FROM INT4_TBL i WHERE (i.f1 % '2'::int2) = '1'::int2;
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-- any evens
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SELECT '' AS three, i.* FROM INT4_TBL i WHERE (i.f1 % '2'::int4) = '0'::int2;
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SELECT '' AS five, i.f1, i.f1 * '2'::int2 AS x FROM INT4_TBL i;
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SELECT '' AS five, i.f1, i.f1 * '2'::int4 AS x FROM INT4_TBL i;
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SELECT '' AS five, i.f1, i.f1 + '2'::int2 AS x FROM INT4_TBL i;
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SELECT '' AS five, i.f1, i.f1 + '2'::int4 AS x FROM INT4_TBL i;
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SELECT '' AS five, i.f1, i.f1 - '2'::int2 AS x FROM INT4_TBL i;
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SELECT '' AS five, i.f1, i.f1 - '2'::int4 AS x FROM INT4_TBL i;
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SELECT '' AS five, i.f1, i.f1 / '2'::int2 AS x FROM INT4_TBL i;
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SELECT '' AS five, i.f1, i.f1 / '2'::int4 AS x FROM INT4_TBL i;
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--
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-- more complex expressions
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--
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1997-09-13 05:16:53 +02:00
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-- variations on unary minus parsing
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SELECT -2+3 AS one;
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SELECT 4-2 AS two;
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SELECT 2- -1 AS three;
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SELECT 2 - -2 AS four;
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1997-04-05 13:26:55 +02:00
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SELECT '2'::int2 * '2'::int2 = '16'::int2 / '4'::int2 AS true;
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SELECT '2'::int4 * '2'::int2 = '16'::int2 / '4'::int4 AS true;
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SELECT '2'::int2 * '2'::int4 = '16'::int4 / '4'::int2 AS true;
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SELECT '1000'::int4 < '999'::int4 AS false;
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SELECT 4! AS twenty_four;
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SELECT !!3 AS six;
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SELECT 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 AS ten;
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SELECT 2 + 2 / 2 AS three;
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SELECT (2 + 2) / 2 AS two;
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SELECT dsqrt('64'::float8) AS eight;
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SELECT |/'64'::float8 AS eight;
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SELECT ||/'27'::float8 AS three;
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