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kent@mysql.com 2005-10-13 12:23:50 +02:00
commit 2747a73857
3 changed files with 16 additions and 0 deletions
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3
mysql-test/r/cast.result
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@ -367,3 +367,6 @@ DROP TABLE t1;
select cast(NULL as decimal(6)) as t1;
t1
NULL
select cast(1.0e+300 as signed int);
cast(1.0e+300 as signed int)
9223372036854775807

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

@ -160,6 +160,11 @@ select cast(concat('184467440','73709551615') as signed);
select cast(repeat('1',20) as unsigned);
select cast(repeat('1',20) as signed);
#
# Bug #13344: cast of large decimal to signed int not handled correctly
#
select cast(1.0e+300 as signed int);
# End of 4.1 tests

8
sql/item.h
View File

@ -1331,6 +1331,14 @@ public:
longlong val_int()
{
DBUG_ASSERT(fixed == 1);
if (value <= (double) LONGLONG_MIN)
{
return LONGLONG_MIN;
}
else if (value >= (double) (ulonglong) LONGLONG_MAX)
{
return LONGLONG_MAX;
}
return (longlong) (value+(value > 0 ? 0.5 : -0.5));
}
String *val_str(String*);