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e2ded829f6
any amount of leading or trailing whitespace (where "whitespace" is defined by isspace()). This is for SQL conformance, as well as consistency with other numeric types (e.g. oid, numeric). Also refactor pg_atoi() to avoid looking at errno where not necessary, and add a bunch of regression tests for the input to these types.
74 lines
2.1 KiB
SQL
74 lines
2.1 KiB
SQL
--
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-- FLOAT4
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--
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CREATE TABLE FLOAT4_TBL (f1 float4);
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INSERT INTO FLOAT4_TBL(f1) VALUES (' 0.0');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('1004.30 ');
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INSERT INTO FLOAT4_TBL(f1) VALUES (' -34.84 ');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('1.2345678901234e+20');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('1.2345678901234e-20');
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-- test for over and under flow
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INSERT INTO FLOAT4_TBL(f1) VALUES ('10e40');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('-10e40');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('10e-40');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('-10e-40');
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-- bad input
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INSERT INTO FLOAT4_TBL(f1) VALUES (' ');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('xyz');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('5.0.0');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('5 . 0');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('5. 0');
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INSERT INTO FLOAT4_TBL(f1) VALUES (' - 3.0');
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INSERT INTO FLOAT4_TBL(f1) VALUES ('123 5');
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-- special inputs
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SELECT 'NaN'::float4;
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SELECT 'nan'::float4;
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SELECT ' NAN '::float4;
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-- bad special inputs
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SELECT 'N A N'::float4;
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SELECT '' AS five, FLOAT4_TBL.*;
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SELECT '' AS four, f.* FROM FLOAT4_TBL f WHERE f.f1 <> '1004.3';
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SELECT '' AS one, f.* FROM FLOAT4_TBL f WHERE f.f1 = '1004.3';
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SELECT '' AS three, f.* FROM FLOAT4_TBL f WHERE '1004.3' > f.f1;
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SELECT '' AS three, f.* FROM FLOAT4_TBL f WHERE f.f1 < '1004.3';
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SELECT '' AS four, f.* FROM FLOAT4_TBL f WHERE '1004.3' >= f.f1;
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SELECT '' AS four, f.* FROM FLOAT4_TBL f WHERE f.f1 <= '1004.3';
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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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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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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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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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-- test divide by zero
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SELECT '' AS bad, f.f1 / '0.0' from FLOAT4_TBL f;
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SELECT '' AS five, FLOAT4_TBL.*;
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-- test the unary float4abs operator
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SELECT '' AS five, f.f1, @f.f1 AS abs_f1 FROM FLOAT4_TBL f;
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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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SELECT '' AS five, FLOAT4_TBL.*;
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