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Merge abotchkov@bk-internal.mysql.com:/home/bk/mysql-5.1-opt

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into  mysql.com:/home/hf/work/27984/my51-27984


BitKeeper/deleted/.del-ps_6bdb.result:
  Auto merged
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unknown
2007-05-21 23:10:40 +05:00
parent fca620e685 d50de104e3
commit 1004132dc2
3 changed files with 10 additions and 1 deletions
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3
mysql-test/r/type_newdecimal.result
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@@ -1478,6 +1478,9 @@ Error 1264 Out of range value for column 'cast(a as DECIMAL(3,2))' at row 1
create table t1 (s varchar(100));
insert into t1 values (0.00000000010000000000000000364321973154977415791655470655996396089904010295867919921875);
drop table t1;
SELECT 1.000000000000 * 99.999999999998 / 100 a,1.000000000000 * (99.999999999998 / 100) b;
a b
0.9999999999999800000000000000 0.9999999999999800000000000000
End of 5.0 tests
select cast(143.481 as decimal(4,1));
cast(143.481 as decimal(4,1))

5
mysql-test/t/type_newdecimal.test
View File

@@ -1167,6 +1167,11 @@ create table t1 (s varchar(100));
insert into t1 values (0.00000000010000000000000000364321973154977415791655470655996396089904010295867919921875);
drop table t1;
#
# Bug #27984 Long Decimal Maths produces truncated results
#
SELECT 1.000000000000 * 99.999999999998 / 100 a,1.000000000000 * (99.999999999998 / 100) b;
--echo End of 5.0 tests
#

3
strings/decimal.c
View File

@@ -1523,9 +1523,10 @@ decimal_round(decimal_t *from, decimal_t *to, int scale,
dec1 *p0= buf0+intg0+max(frac1, frac0);
dec1 *p1= buf1+intg1+max(frac1, frac0);
to->buf[0]= 0;
while (buf0 < p0)
*(--p1) = *(--p0);
if (unlikely(intg1 > intg0))
to->buf[0]= 0;
intg0= intg1;
buf0=to->buf;