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SQL: respect signed in set_max(), is_max()

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This commit is contained in:
Aleksey Midenkov 2016-10-03 07:03:04 +00:00
commit 78c5d1d79c
1 changed files with 10 additions and 4 deletions
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14
sql/field.cc
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@ -4359,16 +4359,22 @@ void Field_longlong::sql_type(String &res) const
bool Field_longlong::set_max()
{
ASSERT_COLUMN_MARKED_FOR_WRITE_OR_COMPUTED;
int8store(ptr, ULONGLONG_MAX);
int8store(ptr, unsigned_flag ? ULONGLONG_MAX : LONGLONG_MAX);
return FALSE;
}
bool Field_longlong::is_max()
{
ASSERT_COLUMN_MARKED_FOR_READ;
ulonglong j;
j = sint8korr(ptr);
return j == ULONGLONG_MAX;
if (unsigned_flag)
{
ulonglong j;
j= uint8korr(ptr);
return j == ULONGLONG_MAX;
}
longlong j;
j= sint8korr(ptr);
return j == LONGLONG_MAX;
}
/*