database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

A fix (bug #5498 TRIM fails with LEADING or TRAILING if remstr = str).

Browse Source
This commit is contained in:
ram@gw.mysql.r18.ru
2004-09-13 14:25:43 +05:00
parent 4c7c2343c7
commit 2488b827de
3 changed files with 16 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
mysql-test/r/func_str.result
View File

@ -282,3 +282,9 @@ NULL NULL 1 1 n
two 'two' 0 0 'two'
four 'four' 0 0 'four'
drop table t1;
select trim(trailing 'foo' from 'foo');
trim(trailing 'foo' from 'foo')
select trim(leading 'foo' from 'foo');
trim(leading 'foo' from 'foo')

7
mysql-test/t/func_str.test
View File

@ -172,3 +172,10 @@ create table t1(a char(4));
insert into t1 values ('one'),(NULL),('two'),('four');
select a, quote(a), isnull(quote(a)), quote(a) is null, ifnull(quote(a), 'n') from t1;
drop table t1;
#
# Bug #5498: TRIM fails with LEADING or TRAILING if remstr = str
#
select trim(trailing 'foo' from 'foo');
select trim(leading 'foo' from 'foo');

6
sql/item_strfunc.cc
View File

@ -1135,7 +1135,7 @@ String *Item_func_ltrim::val_str(String *str)
{
const char *r_ptr=remove_str->ptr();
end-=remove_length;
while (ptr < end && !memcmp(ptr,r_ptr,remove_length))
while (ptr <= end && !memcmp(ptr, r_ptr, remove_length))
ptr+=remove_length;
end+=remove_length;
}
@ -1206,8 +1206,8 @@ String *Item_func_rtrim::val_str(String *str)
else
#endif /* USE_MB */
{
while (ptr + remove_length < end &&
!memcmp(end-remove_length,r_ptr,remove_length))
while (ptr + remove_length <= end &&
!memcmp(end-remove_length, r_ptr, remove_length))
end-=remove_length;
}
}