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https://git.postgresql.org/git/postgresql.git
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145 lines
3.6 KiB
Plaintext
145 lines
3.6 KiB
Plaintext
QUERY: CREATE TABLE FLOAT4_TBL (f1 float4);
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QUERY: INSERT INTO FLOAT4_TBL(f1) VALUES ('0.0');
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QUERY: INSERT INTO FLOAT4_TBL(f1) VALUES ('1004.30');
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QUERY: INSERT INTO FLOAT4_TBL(f1) VALUES ('-34.84');
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QUERY: INSERT INTO FLOAT4_TBL(f1) VALUES ('1.2345678901234e+20');
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QUERY: INSERT INTO FLOAT4_TBL(f1) VALUES ('1.2345678901234e-20');
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QUERY: INSERT INTO FLOAT4_TBL(f1) VALUES ('10e40');
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ERROR: Bad float4 input format -- overflow
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QUERY: INSERT INTO FLOAT4_TBL(f1) VALUES ('-10e40');
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ERROR: Bad float4 input format -- overflow
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QUERY: INSERT INTO FLOAT4_TBL(f1) VALUES ('10e-40');
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ERROR: Bad float4 input format -- underflow
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QUERY: INSERT INTO FLOAT4_TBL(f1) VALUES ('-10e-40');
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ERROR: Bad float4 input format -- underflow
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QUERY: SELECT '' AS five, FLOAT4_TBL.*;
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five|f1
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----+-----------
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|0
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|1004.3
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|-34.84
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|1.23457e+20
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|1.23457e-20
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(5 rows)
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QUERY: SELECT '' AS four, f.* FROM FLOAT4_TBL f WHERE f.f1 <> '1004.3';
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four|f1
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----+-----------
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|0
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|-34.84
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|1.23457e+20
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|1.23457e-20
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(4 rows)
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QUERY: SELECT '' AS one, f.* FROM FLOAT4_TBL f WHERE f.f1 = '1004.3';
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one| f1
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---+------
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|1004.3
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(1 row)
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QUERY: SELECT '' AS three, f.* FROM FLOAT4_TBL f WHERE '1004.3' > f.f1;
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three| f1
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-----+-----------
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| 0
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| -34.84
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|1.23457e-20
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(3 rows)
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QUERY: SELECT '' AS three, f.* FROM FLOAT4_TBL f WHERE f.f1 < '1004.3';
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three| f1
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-----+-----------
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| 0
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| -34.84
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|1.23457e-20
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(3 rows)
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QUERY: SELECT '' AS four, f.* FROM FLOAT4_TBL f WHERE '1004.3' >= f.f1;
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four| f1
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----+-----------
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| 0
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| 1004.3
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| -34.84
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|1.23457e-20
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(4 rows)
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QUERY: SELECT '' AS four, f.* FROM FLOAT4_TBL f WHERE f.f1 <= '1004.3';
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four| f1
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----+-----------
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| 0
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| 1004.3
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| -34.84
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|1.23457e-20
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(4 rows)
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QUERY: SELECT '' AS three, f.f1, f.f1 * '-10' AS x FROM FLOAT4_TBL f
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WHERE f.f1 > '0.0';
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three|f1 |x
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-----+-----------+------------
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|1004.3 |-10043
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|1.23457e+20|-1.23457e+21
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|1.23457e-20|-1.23457e-19
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(3 rows)
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QUERY: SELECT '' AS three, f.f1, f.f1 + '-10' AS x FROM FLOAT4_TBL f
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WHERE f.f1 > '0.0';
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three|f1 |x
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-----+-----------+-----------
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|1004.3 |994.3
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|1.23457e+20|1.23457e+20
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|1.23457e-20|-10
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(3 rows)
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QUERY: SELECT '' AS three, f.f1, f.f1 / '-10' AS x FROM FLOAT4_TBL f
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WHERE f.f1 > '0.0';
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three|f1 |x
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-----+-----------+------------
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|1004.3 |-100.43
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|1.23457e+20|-1.23457e+19
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|1.23457e-20|-1.23457e-21
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(3 rows)
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QUERY: SELECT '' AS three, f.f1, f.f1 - '-10' AS x FROM FLOAT4_TBL f
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WHERE f.f1 > '0.0';
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three|f1 |x
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-----+-----------+-----------
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|1004.3 |1014.3
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|1.23457e+20|1.23457e+20
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|1.23457e-20|10
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(3 rows)
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QUERY: SELECT '' AS bad, f.f1 / '0.0' from FLOAT4_TBL f;
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ERROR: float4div: divide by zero error
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QUERY: SELECT '' AS five, FLOAT4_TBL.*;
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five|f1
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----+-----------
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|0
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|1004.3
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|-34.84
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|1.23457e+20
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|1.23457e-20
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(5 rows)
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QUERY: SELECT '' AS five, f.f1, @f.f1 AS abs_f1 FROM FLOAT4_TBL f;
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five|f1 |abs_f1
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----+-----------+-----------
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|0 |0
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|1004.3 |1004.3
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|-34.84 |34.84
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|1.23457e+20|1.23457e+20
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|1.23457e-20|1.23457e-20
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(5 rows)
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QUERY: UPDATE FLOAT4_TBL
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SET f1 = FLOAT4_TBL.f1 * '-1'
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WHERE FLOAT4_TBL.f1 > '0.0';
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QUERY: SELECT '' AS five, FLOAT4_TBL.*;
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five|f1
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----+------------
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|0
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|-34.84
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|-1004.3
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|-1.23457e+20
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|-1.23457e-20
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(5 rows)
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