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Bug #31758 inet_ntoa, oct crashes server with null+filesort

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Item_func_inet_ntoa and Item_func_conv inherit 'maybe_null' flag from an
argument, which is wrong.
Both can be NULL with notnull arguments, so that's fixed.


mysql-test/r/func_str.result:
  Bug #31758 inet_ntoa, oct crashes server with null+filesort
  
  test case
mysql-test/t/func_str.test:
  Bug #31758 inet_ntoa, oct crashes server with null+filesort
  
  test result
sql/item_strfunc.h:
  Bug #31758 inet_ntoa, oct crashes server with null+filesort
  
  missing maybe_null flags set for Item_func_inet_ntoa and Item_func_conv
This commit is contained in:
unknown 2007-10-30 12:35:03 +04:00
commit e722393f51
3 changed files with 30 additions and 4 deletions
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13
mysql-test/t/func_str.test
View file

@ -721,4 +721,17 @@ explain extended select encode(f1,'zxcv') as 'enc' from t1;
explain extended select decode(f1,'zxcv') as 'enc' from t1;
drop table t1;
#
# Bug #31758 inet_ntoa, oct, crashes server with null + filesort
#
create table t1 (a bigint not null)engine=myisam;
insert into t1 set a = 1024*1024*1024*4;
delete from t1 order by (inet_ntoa(a)) desc limit 10;
drop table t1;
create table t1 (a char(36) not null)engine=myisam;
insert ignore into t1 set a = ' ';
insert ignore into t1 set a = ' ';
select * from t1 order by (oct(a));
drop table t1;
--echo End of 4.1 tests