104 lines
2.4 KiB
MySQL
104 lines
2.4 KiB
MySQL
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-- *************testing built-in type float8 ****************
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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 over and under flow
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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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SELECT '' AS five, 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, %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, f.f1 % AS round_f1
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FROM FLOAT8_TBL f;
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-- square root
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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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-- take exp of ln(f.f1)
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SELECT '' AS three, f.f1, : ( ; 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 '' AS five, f.f1, ||/f.f1 AS cbrt_f1 FROM FLOAT8_TBL f;
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SELECT '' AS five, 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 '' AS bad, (; (f.f1)) from FLOAT8_TBL f where f.f1 = '0.0' ;
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SELECT '' AS bad, (; (f.f1)) from FLOAT8_TBL f where f.f1 < '0.0' ;
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SELECT '' AS bad, : (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, FLOAT8_TBL.*;
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