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

Merge mysql.com:/opt/local/work/mysql-4.1-root

Browse Source 
into mysql.com:/opt/local/work/mysql-4.1-9096-fresh


sql/item.h:
  Auto merged
sql/item_func.cc:
  Auto merged
This commit is contained in:
unknown
2005-05-03 12:49:22 +04:00
parent 9f5a4955d0 9fcda7fcc5
commit b883aebae0
5 changed files with 192 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
mysql-test/t/ps.test
View File

@ -496,3 +496,29 @@ SELECT FOUND_ROWS();
execute stmt;
SELECT FOUND_ROWS();
deallocate prepare stmt;
#
# Bug#9096 "select doesn't return all matched records if prepared statements
# is used"
# The bug was is bad co-operation of the optimizer's algorithm which determines
# which keys can be used to execute a query, constants propagation
# part of the optimizer and parameter markers used by prepared statements.
drop table if exists t1;
create table t1 (c1 int(11) not null, c2 int(11) not null,
primary key (c1,c2), key c2 (c2), key c1 (c1));
insert into t1 values (200887, 860);
insert into t1 values (200887, 200887);
select * from t1 where (c1=200887 and c2=200887) or c2=860;
prepare stmt from
"select * from t1 where (c1=200887 and c2=200887) or c2=860";
execute stmt;
prepare stmt from
"select * from t1 where (c1=200887 and c2=?) or c2=?";
set @a=200887, @b=860;
# this query did not return all matching rows
execute stmt using @a, @b;
deallocate prepare stmt;