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Fix Bug#11333 "Stored Procedure: Memory blow up on repeated SELECT ... INTO query"

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mysql-test/r/sp.result:
  update result
mysql-test/t/sp.test:
  Add test for Bug #11333 "Stored Procedure: Memory blow up on repeated SELECT ... INTO query"
sql/item.cc:
  we should call destructors for Items before reuse
sql/item.h:
  Add new method and constructor for Item_string.
sql/sp_head.cc:
  String allocation should be done on the system heap for now.
This commit is contained in:
unknown
2005-08-25 15:34:14 +04:00
parent 141a36c31b
commit d29df5645b
5 changed files with 91 additions and 4 deletions
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19
mysql-test/r/sp.result
View File

@ -3166,4 +3166,23 @@ a
4
truncate t2|
drop procedure if exists bug12168|
drop table if exists t3|
drop procedure if exists bug11333|
create table t3 (c1 char(128))|
insert into t3 values
('AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA')|
create procedure bug11333(i int)
begin
declare tmp varchar(128);
set @x = 0;
repeat
select c1 into tmp from t3
where c1 = 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA';
set @x = @x + 1;
until @x >= i
end repeat;
end|
call bug11333(10)|
drop procedure bug11333|
drop table t3|
drop table t1,t2;

34
mysql-test/t/sp.test
View File

@ -3995,6 +3995,40 @@ select * from t2|
truncate t2|
drop procedure if exists bug12168|
#
# Bug #11333 "Stored Procedure: Memory blow up on repeated SELECT ... INTO
# query"
# One more memleak bug. Use the test to check memory consumption.
#
--disable_warnings
drop table if exists t3|
drop procedure if exists bug11333|
--enable_warnings
create table t3 (c1 char(128))|
insert into t3 values
('AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA')|
create procedure bug11333(i int)
begin
declare tmp varchar(128);
set @x = 0;
repeat
select c1 into tmp from t3
where c1 = 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA';
set @x = @x + 1;
until @x >= i
end repeat;
end|
call bug11333(10)|
drop procedure bug11333|
drop table t3|
#
# BUG#NNNN: New bug synopsis
#