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Bug#25123: ON DUPLICATE KEY clause allows fields not from the insert table.

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When inserting into a join-based view the update fields from the ON DUPLICATE
KEY UPDATE wasn't checked to be from the table being inserted into and were
silently ignored.

The new check_view_single_update() function is added to check that
insert/update fields are being from the same single table of the view.
This commit is contained in:
evgen@moonbone.local
2007-01-22 15:14:38 +03:00
parent b8d55cc449
commit e921ac7afc
3 changed files with 112 additions and 20 deletions
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21
mysql-test/r/insert.result
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@ -325,3 +325,24 @@ select row_count();
row_count()
1
drop table t1;
create table t1 (f1 int unique, f2 int);
create table t2 (f3 int, f4 int);
create view v1 as select * from t1, t2 where f1= f3;
insert into t1 values (1,11), (2,22);
insert into t2 values (1,12), (2,24);
insert into v1 (f1) values (3) on duplicate key update f3= f3 + 10;
ERROR HY000: Can not modify more than one base table through a join view 'test.v1'
insert into v1 (f1) values (3) on duplicate key update f1= f3 + 10;
select * from t1;
f1 f2
1 11
2 22
3 NULL
insert into v1 (f1) values (3) on duplicate key update f1= f3 + 10;
select * from t1;
f1 f2
1 11
2 22
12 NULL
drop view v1;
drop table t1,t2;