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Merge mysql.com:/home/timka/mysql/src/5.0-virgin

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into  mysql.com:/home/timka/mysql/src/5.1-dbg
This commit is contained in:
timour@mysql.com
2005-12-01 12:12:24 +02:00
parent fb057f13fb d80feb9e21
commit aa864660d7
6 changed files with 112 additions and 12 deletions
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31
mysql-test/r/group_min_max.result
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@ -2012,3 +2012,34 @@ explain select distinct f1, f2 from t1;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range NULL PRIMARY 5 NULL 3 Using index for group-by; Using temporary
drop table t1;
create table t1 (c1 int not null,c2 int not null, primary key(c1,c2));
insert into t1 (c1,c2) values
(10,1),(10,2),(10,3),(20,4),(20,5),(20,6),(30,7),(30,8),(30,9);
select distinct c1, c2 from t1 order by c2;
c1 c2
10 1
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select c1,min(c2) as c2 from t1 group by c1 order by c2;
c1 c2
10 1
20 4
30 7
select c1,c2 from t1 group by c1,c2 order by c2;
c1 c2
10 1
10 2
10 3
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30 9
drop table t1;

12
mysql-test/t/group_min_max.test
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@ -703,3 +703,15 @@ alter table t1 drop primary key, add primary key (f2, f1);
explain select distinct f1 a, f1 b from t1;
explain select distinct f1, f2 from t1;
drop table t1;
#
# Bug #14920 Ordering aggregated result sets with composite primary keys
# corrupts resultset
#
create table t1 (c1 int not null,c2 int not null, primary key(c1,c2));
insert into t1 (c1,c2) values
(10,1),(10,2),(10,3),(20,4),(20,5),(20,6),(30,7),(30,8),(30,9);
select distinct c1, c2 from t1 order by c2;
select c1,min(c2) as c2 from t1 group by c1 order by c2;
select c1,c2 from t1 group by c1,c2 order by c2;
drop table t1;