Submitted by: @dyemanov

Is related to QA548

Test case:

create table t1 (col int);
set term ^;
create procedure p1 returns (res int) as begin suspend; end^
set term ;^

create view v as select 1 as num from t1, t1 as t2, p1, p1 as p2;

select * from v;
-- PLAN JOIN (P1 NATURAL, P1 NATURAL, V T1 NATURAL, V T2 NATURAL)

but it should be:
-- PLAN JOIN (V P1 NATURAL, V P2 NATURAL, V T1 NATURAL, V T2 NATURAL)

Commits: d09fba5 5e787a2