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Fix for bug #26788 "mysqld (debug) aborts when inserting specific

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numbers into char fields" and bug #12860 "Difference in zero padding of
exponent between Unix and Windows"

Rewrote the code that determines what 'precision' argument should be
passed to sprintf() to fit the string representation of the input number
into the field.
We get finer control over conversion by pre-calculating the exponent, so
we are able to determine which conversion format, 'e' or 'f', will be
used by sprintf().
We also remove the leading zero from the exponent on Windows to make it
compatible with the sprintf() output on other platforms.
This commit is contained in:
kaa@polly.(none)
2007-12-01 10:05:59 +03:00
parent 80a2d47b22
commit 7fd9135bb8
6 changed files with 261 additions and 23 deletions
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120
mysql-test/r/insert.result
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@ -461,4 +461,124 @@ i
2
2
DROP TABLE t1, t2;
CREATE TABLE t1 (
a char(20) NOT NULL,
b char(7) DEFAULT NULL,
c char(4) DEFAULT NULL
);
INSERT INTO t1(a,b,c) VALUES (9.999999e+0, 9.999999e+0, 9.999e+0);
INSERT INTO t1(a,b,c) VALUES (1.225e-05, 1.225e-05, 1.225e-05);
Warnings:
Warning 1265 Data truncated for column 'c' at row 1
INSERT INTO t1(a,b) VALUES (1.225e-04, 1.225e-04);
INSERT INTO t1(a,b) VALUES (1.225e-01, 1.225e-01);
INSERT INTO t1(a,b) VALUES (1.225877e-01, 1.225877e-01);
INSERT INTO t1(a,b) VALUES (1.225e+01, 1.225e+01);
INSERT INTO t1(a,b,c) VALUES (1.225e+01, 1.225e+01, 1.225e+01);
INSERT INTO t1(a,b) VALUES (1.225e+05, 1.225e+05);
INSERT INTO t1(a,b) VALUES (1.225e+10, 1.225e+10);
INSERT INTO t1(a,b) VALUES (1.225e+15, 1.225e+15);
INSERT INTO t1(a,b) VALUES (5000000e+0, 5000000e+0);
INSERT INTO t1(a,b) VALUES (1.25e+78, 1.25e+78);
INSERT INTO t1(a,b) VALUES (1.25e-94, 1.25e-94);
INSERT INTO t1(a,b) VALUES (1.25e+203, 1.25e+203);
INSERT INTO t1(a,b) VALUES (1.25e-175, 1.25e-175);
INSERT INTO t1(a,c) VALUES (1.225e+0, 1.225e+0);
INSERT INTO t1(a,c) VALUES (1.37e+0, 1.37e+0);
INSERT INTO t1(a,c) VALUES (-1.37e+0, -1.37e+0);
Warnings:
Warning 1265 Data truncated for column 'c' at row 1
INSERT INTO t1(a,c) VALUES (1.87e-3, 1.87e-3);
Warnings:
Warning 1265 Data truncated for column 'c' at row 1
INSERT INTO t1(a,c) VALUES (-1.87e-2, -1.87e-2);
Warnings:
Warning 1265 Data truncated for column 'c' at row 1
INSERT INTO t1(a,c) VALUES (5000e+0, 5000e+0);
INSERT INTO t1(a,c) VALUES (-5000e+0, -5000e+0);
Warnings:
Warning 1265 Data truncated for column 'c' at row 1
SELECT * FROM t1;
a b c
9.999999000000000748 10 10
1.225e-05 1.2e-05 1e-0
0.0001225 0.00012 NULL
0.122499999999999998 0.1225 NULL
0.122587699999999994 0.12259 NULL
12.25 12.25 NULL
12.25 12.25 12.2
122500 122500 NULL
12250000000 1.2e+10 NULL
1225000000000000 1.2e+15 NULL
5000000 5000000 NULL
1.25e+78 1.2e+78 NULL
1.25e-94 1.2e-94 NULL
1.25e+203 1e+203 NULL
1.25e-175 1e-175 NULL
1.225000000000000089 NULL 1.23
1.370000000000000107 NULL 1.37
-1.37 NULL -1.3
0.00187 NULL 0.00
-0.0187 NULL -0.0
5000 NULL 5000
-5000 NULL -500
DROP TABLE t1;
CREATE TABLE t1 (
a char(20) NOT NULL,
b char(7) DEFAULT NULL,
c char(5)
);
INSERT INTO t1(a,b,c) VALUES (9.999999e+0, 9.999999e+0, 9.999e+0);
INSERT INTO t1(a,b,c) VALUES (1.225e-05, 1.225e-05, 1.225e-05);
INSERT INTO t1(a,b) VALUES (1.225e-04, 1.225e-04);
INSERT INTO t1(a,b) VALUES (1.225e-01, 1.225e-01);
INSERT INTO t1(a,b) VALUES (1.225877e-01, 1.225877e-01);
INSERT INTO t1(a,b) VALUES (1.225e+01, 1.225e+01);
INSERT INTO t1(a,b,c) VALUES (1.225e+01, 1.225e+01, 1.225e+01);
INSERT INTO t1(a,b) VALUES (1.225e+05, 1.225e+05);
INSERT INTO t1(a,b) VALUES (1.225e+10, 1.225e+10);
INSERT INTO t1(a,b) VALUES (1.225e+15, 1.225e+15);
INSERT INTO t1(a,b) VALUES (5000000e+0, 5000000e+0);
INSERT INTO t1(a,b) VALUES (1.25e+78, 1.25e+78);
INSERT INTO t1(a,b) VALUES (1.25e-94, 1.25e-94);
INSERT INTO t1(a,b) VALUES (1.25e+203, 1.25e+203);
INSERT INTO t1(a,b) VALUES (1.25e-175, 1.25e-175);
INSERT INTO t1(a,c) VALUES (1.225e+0, 1.225e+0);
INSERT INTO t1(a,c) VALUES (1.37e+0, 1.37e+0);
INSERT INTO t1(a,c) VALUES (-1.37e+0, -1.37e+0);
INSERT INTO t1(a,c) VALUES (1.87e-3, 1.87e-3);
INSERT INTO t1(a,c) VALUES (-1.87e-2, -1.87e-2);
Warnings:
Warning 1265 Data truncated for column 'c' at row 1
INSERT INTO t1(a,c) VALUES (5000e+0, 5000e+0);
INSERT INTO t1(a,c) VALUES (-5000e+0, -5000e+0);
SELECT * FROM t1;
a b c
9.999999000000000748 10 9.999
1.225e-05 1.2e-05 1e-05
0.0001225 0.00012 NULL
0.122499999999999998 0.1225 NULL
0.122587699999999994 0.12259 NULL
12.25 12.25 NULL
12.25 12.25 12.25
122500 122500 NULL
12250000000 1.2e+10 NULL
1225000000000000 1.2e+15 NULL
5000000 5000000 NULL
1.25e+78 1.2e+78 NULL
1.25e-94 1.2e-94 NULL
1.25e+203 1e+203 NULL
1.25e-175 1e-175 NULL
1.225000000000000089 NULL 1.225
1.370000000000000107 NULL 1.37
-1.37 NULL -1.37
0.00187 NULL 0.002
-0.0187 NULL -0.01
5000 NULL 5000
-5000 NULL -5000
DROP TABLE t1;
CREATE TABLE t (a CHAR(10),b INT);
INSERT INTO t VALUES (),(),();
INSERT INTO t(a) SELECT rand() FROM t;
DROP TABLE t;
End of 5.0 tests.