Re: BUG #17633: Define rule on views which do insert to another relation trigger cache lookup failed error.

Just execute as follow sql:

drop view v1;
drop table t1;
drop table t2;
create table t1(i int, j int);
create table t2(a int, b int, c int, d int);
create or replace rule t1_r as on insert to t1 do also insert into t2(c,d)
values (new.i, new.j);
insert into t1 values (1,default);
insert into t1 values (1,default),(2, default);
-- create rule on t1 directly no issue
drop rule t1_r on t1;
create view v1 as select * from t1;
— create rule on view query t1 will trigger this issue
create or replace rule v1_r as on insert to v1 do also insert into t2(c,d)
values (new.i, new.j);
insert into v1 values (1,default);
-- must multi values.
insert into v1 values (1,default),(2, default);
=> it will trigger cache lookup failed for type.