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342b83fdca
This reverts commit 500cf66d55. As was
more or less expected, a small minority of platforms won't accept
denormalized input even with the recent changes. It doesn't seem
especially helpful to test this if we're going to have to provide an
alternate expected-file to allow failure.
169 lines
4.2 KiB
SQL
169 lines
4.2 KiB
SQL
--
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-- FLOAT8
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--
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CREATE TABLE FLOAT8_TBL(f1 float8);
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INSERT INTO FLOAT8_TBL(f1) VALUES (' 0.0 ');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('1004.30 ');
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INSERT INTO FLOAT8_TBL(f1) VALUES (' -34.84');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('1.2345678901234e+200');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('1.2345678901234e-200');
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-- test for underflow and overflow handling
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SELECT '10e400'::float8;
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SELECT '-10e400'::float8;
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SELECT '10e-400'::float8;
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SELECT '-10e-400'::float8;
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-- bad input
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INSERT INTO FLOAT8_TBL(f1) VALUES ('');
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INSERT INTO FLOAT8_TBL(f1) VALUES (' ');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('xyz');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('5.0.0');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('5 . 0');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('5. 0');
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INSERT INTO FLOAT8_TBL(f1) VALUES (' - 3');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('123 5');
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-- special inputs
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SELECT 'NaN'::float8;
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SELECT 'nan'::float8;
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SELECT ' NAN '::float8;
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SELECT 'infinity'::float8;
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SELECT ' -INFINiTY '::float8;
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-- bad special inputs
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SELECT 'N A N'::float8;
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SELECT 'NaN x'::float8;
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SELECT ' INFINITY x'::float8;
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SELECT 'Infinity'::float8 + 100.0;
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SELECT 'Infinity'::float8 / 'Infinity'::float8;
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SELECT 'nan'::float8 / 'nan'::float8;
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SELECT 'nan'::numeric::float8;
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SELECT '' AS five, * FROM FLOAT8_TBL;
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SELECT '' AS four, f.* FROM FLOAT8_TBL f WHERE f.f1 <> '1004.3';
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SELECT '' AS one, f.* FROM FLOAT8_TBL f WHERE f.f1 = '1004.3';
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SELECT '' AS three, f.* FROM FLOAT8_TBL f WHERE '1004.3' > f.f1;
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SELECT '' AS three, f.* FROM FLOAT8_TBL f WHERE f.f1 < '1004.3';
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SELECT '' AS four, f.* FROM FLOAT8_TBL f WHERE '1004.3' >= f.f1;
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SELECT '' AS four, f.* FROM FLOAT8_TBL f WHERE f.f1 <= '1004.3';
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SELECT '' AS three, f.f1, f.f1 * '-10' AS x
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FROM FLOAT8_TBL f
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WHERE f.f1 > '0.0';
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SELECT '' AS three, f.f1, f.f1 + '-10' AS x
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FROM FLOAT8_TBL f
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WHERE f.f1 > '0.0';
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SELECT '' AS three, f.f1, f.f1 / '-10' AS x
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FROM FLOAT8_TBL f
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WHERE f.f1 > '0.0';
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SELECT '' AS three, f.f1, f.f1 - '-10' AS x
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FROM FLOAT8_TBL f
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WHERE f.f1 > '0.0';
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SELECT '' AS one, f.f1 ^ '2.0' AS square_f1
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FROM FLOAT8_TBL f where f.f1 = '1004.3';
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-- absolute value
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SELECT '' AS five, f.f1, @f.f1 AS abs_f1
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FROM FLOAT8_TBL f;
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-- truncate
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SELECT '' AS five, f.f1, trunc(f.f1) AS trunc_f1
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FROM FLOAT8_TBL f;
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-- round
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SELECT '' AS five, f.f1, round(f.f1) AS round_f1
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FROM FLOAT8_TBL f;
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-- ceil / ceiling
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select ceil(f1) as ceil_f1 from float8_tbl f;
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select ceiling(f1) as ceiling_f1 from float8_tbl f;
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-- floor
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select floor(f1) as floor_f1 from float8_tbl f;
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-- sign
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select sign(f1) as sign_f1 from float8_tbl f;
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-- square root
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SELECT sqrt(float8 '64') AS eight;
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SELECT |/ float8 '64' AS eight;
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SELECT '' AS three, f.f1, |/f.f1 AS sqrt_f1
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FROM FLOAT8_TBL f
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WHERE f.f1 > '0.0';
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-- power
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SELECT power(float8 '144', float8 '0.5');
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-- take exp of ln(f.f1)
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SELECT '' AS three, f.f1, exp(ln(f.f1)) AS exp_ln_f1
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FROM FLOAT8_TBL f
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WHERE f.f1 > '0.0';
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-- cube root
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SELECT ||/ float8 '27' AS three;
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SELECT '' AS five, f.f1, ||/f.f1 AS cbrt_f1 FROM FLOAT8_TBL f;
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SELECT '' AS five, * FROM FLOAT8_TBL;
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UPDATE FLOAT8_TBL
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SET f1 = FLOAT8_TBL.f1 * '-1'
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WHERE FLOAT8_TBL.f1 > '0.0';
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SELECT '' AS bad, f.f1 * '1e200' from FLOAT8_TBL f;
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SELECT '' AS bad, f.f1 ^ '1e200' from FLOAT8_TBL f;
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SELECT 0 ^ 0 + 0 ^ 1 + 0 ^ 0.0 + 0 ^ 0.5;
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SELECT '' AS bad, ln(f.f1) from FLOAT8_TBL f where f.f1 = '0.0' ;
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SELECT '' AS bad, ln(f.f1) from FLOAT8_TBL f where f.f1 < '0.0' ;
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SELECT '' AS bad, exp(f.f1) from FLOAT8_TBL f;
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SELECT '' AS bad, f.f1 / '0.0' from FLOAT8_TBL f;
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SELECT '' AS five, * FROM FLOAT8_TBL;
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-- test for over- and underflow
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INSERT INTO FLOAT8_TBL(f1) VALUES ('10e400');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('-10e400');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('10e-400');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('-10e-400');
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-- maintain external table consistency across platforms
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-- delete all values and reinsert well-behaved ones
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DELETE FROM FLOAT8_TBL;
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INSERT INTO FLOAT8_TBL(f1) VALUES ('0.0');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('-34.84');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('-1004.30');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('-1.2345678901234e+200');
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INSERT INTO FLOAT8_TBL(f1) VALUES ('-1.2345678901234e-200');
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SELECT '' AS five, * FROM FLOAT8_TBL;
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