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Fix for bug#1944 'Function RPad() sometimes produce unexpected result'

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unknown
2003-12-04 14:12:01 +04:00
parent d8e425c240
commit c2b60a6f59
4 changed files with 20 additions and 12 deletions
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18
mysql-test/r/func_str.result
View File

@ -119,12 +119,12 @@ montymontymontymontymonty * *
select reverse('abc'),reverse('abcd');
reverse('abc') reverse('abcd')
cba dcba
select rpad('a',4,'1'),rpad('a',4,'12'),rpad('abcd',3,'12');
rpad('a',4,'1') rpad('a',4,'12') rpad('abcd',3,'12')
a111 a121 abc
select lpad('a',4,'1'),lpad('a',4,'12'),lpad('abcd',3,'12');
lpad('a',4,'1') lpad('a',4,'12') lpad('abcd',3,'12')
111a 121a abc
select rpad('a',4,'1'),rpad('a',4,'12'),rpad('abcd',3,'12'), rpad(11, 10 , 22), rpad("ab", 10, 22);
rpad('a',4,'1') rpad('a',4,'12') rpad('abcd',3,'12') rpad(11, 10 , 22) rpad("ab", 10, 22)
a111 a121 abc 1122222222 ab22222222
select lpad('a',4,'1'),lpad('a',4,'12'),lpad('abcd',3,'12'), lpad(11, 10 , 22);
lpad('a',4,'1') lpad('a',4,'12') lpad('abcd',3,'12') lpad(11, 10 , 22)
111a 121a abc 2222222211
select rpad(741653838,17,'0'),lpad(741653838,17,'0');
rpad(741653838,17,'0') lpad(741653838,17,'0')
74165383800000000 00000000741653838
@ -134,6 +134,12 @@ abcdaba abaabcd
select rpad('abcd',1,'ab'),lpad('abcd',1,'ab');
rpad('abcd',1,'ab') lpad('abcd',1,'ab')
a a
select rpad('STRING', 20, CONCAT('p','a','d') );
rpad('STRING', 20, CONCAT('p','a','d') )
STRINGpadpadpadpadpa
select lpad('STRING', 20, CONCAT('p','a','d') );
lpad('STRING', 20, CONCAT('p','a','d') )
padpadpadpadpaSTRING
select LEAST(NULL,'HARRY','HARRIOT',NULL,'HAROLD'),GREATEST(NULL,'HARRY','HARRIOT',NULL,'HAROLD');
LEAST(NULL,'HARRY','HARRIOT',NULL,'HAROLD') GREATEST(NULL,'HARRY','HARRIOT',NULL,'HAROLD')
HAROLD HARRY

6
mysql-test/t/func_str.test
View File

@ -49,11 +49,13 @@ select aes_decrypt("a","a");
select aes_decrypt(aes_encrypt("","a"),"a");
select repeat('monty',5),concat('*',space(5),'*');
select reverse('abc'),reverse('abcd');
select rpad('a',4,'1'),rpad('a',4,'12'),rpad('abcd',3,'12');
select lpad('a',4,'1'),lpad('a',4,'12'),lpad('abcd',3,'12');
select rpad('a',4,'1'),rpad('a',4,'12'),rpad('abcd',3,'12'), rpad(11, 10 , 22), rpad("ab", 10, 22);
select lpad('a',4,'1'),lpad('a',4,'12'),lpad('abcd',3,'12'), lpad(11, 10 , 22);
select rpad(741653838,17,'0'),lpad(741653838,17,'0');
select rpad('abcd',7,'ab'),lpad('abcd',7,'ab');
select rpad('abcd',1,'ab'),lpad('abcd',1,'ab');
select rpad('STRING', 20, CONCAT('p','a','d') );
select lpad('STRING', 20, CONCAT('p','a','d') );
select LEAST(NULL,'HARRY','HARRIOT',NULL,'HAROLD'),GREATEST(NULL,'HARRY','HARRIOT',NULL,'HAROLD');
select least(1,2,3) | greatest(16,32,8), least(5,4)*1,greatest(-1.0,1.0)*1,least(3,2,1)*1.0,greatest(1,1.1,1.0),least("10",9),greatest("A","B","0");

4
sql/item_strfunc.cc
View File

@ -1806,7 +1806,7 @@ String *Item_func_rpad::val_str(String *str)
const char *ptr_pad;
int32 count= (int32) args[1]->val_int();
String *res =args[0]->val_str(str);
String *rpad = args[2]->val_str(str);
String *rpad = args[2]->val_str(&rpad_str);
if (!res || args[1]->null_value || !rpad || count < 0)
goto err;
@ -1866,7 +1866,7 @@ String *Item_func_lpad::val_str(String *str)
const char *ptr_pad;
ulong count= (long) args[1]->val_int();
String *res= args[0]->val_str(str);
String *lpad= args[2]->val_str(str);
String *lpad= args[2]->val_str(&lpad_str);
if (!res || args[1]->null_value || !lpad)
goto err;

4
sql/item_strfunc.h
View File

@ -436,7 +436,7 @@ public:
class Item_func_rpad :public Item_str_func
{
String tmp_value;
String tmp_value, rpad_str;
public:
Item_func_rpad(Item *arg1,Item *arg2,Item *arg3)
:Item_str_func(arg1,arg2,arg3) {}
@ -449,7 +449,7 @@ public:
class Item_func_lpad :public Item_str_func
{
String tmp_value;
String tmp_value, lpad_str;
public:
Item_func_lpad(Item *arg1,Item *arg2,Item *arg3)
:Item_str_func(arg1,arg2,arg3) {}