Commit 9f40b1da authored by holyfoot/hf@hfmain.(none)'s avatar holyfoot/hf@hfmain.(none)
Browse files

Merge mysql.com:/home/hf/work/31758/my41-31758 

into  mysql.com:/home/hf/work/31758/my50-31758
parents 6b92ec4a e93574e9

mysql-test/r/func_str.result

+12 −0
Original line number Diff line number Diff line
@@ -1095,6 +1095,18 @@ id select_type table type possible_keys key key_len ref rows Extra 
1	SIMPLE	t1	system	NULL	NULL	NULL	NULL	0	const row not found

Warnings:

Note	1003	select decode('','zxcv') AS `enc` from `test`.`t1`

drop table t1;

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));

a





drop table t1;

End of 4.1 tests

create table t1 (d decimal default null);

mysql-test/t/func_str.test

+13 −0
Original line number Diff line number Diff line
@@ -738,6 +738,19 @@ 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



#

sql/item_strfunc.h

+3 −2
Original line number Diff line number Diff line
@@ -585,6 +585,7 @@ class Item_func_conv :public Item_str_func 
  {

    collation.set(default_charset());

    max_length=64;

    maybe_null= 1;

  }

};
@@ -682,7 +683,7 @@ class Item_func_inet_ntoa : public Item_str_func 
    }

  String* val_str(String* str);

  const char *func_name() const { return "inet_ntoa"; }

  void fix_length_and_dec() { decimals = 0; max_length=3*8+7; }

  void fix_length_and_dec() { decimals = 0; max_length=3*8+7; maybe_null=1;}

};



class Item_func_quote :public Item_str_func