Oracle FORALL & PostgreSQL ? op any|all (ARRAY)

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On my laptop running Oracle Database 11g Release 2, it took 4.94 seconds to insert 100,000 rows, one at a time. With FORALL, those 100,000 were inserted in 0.12 seconds. Wow!

Instead of doing that, I can simply remove all ineligible IDs from the l_employee_ids collection, as follows: 
   FOR indx IN 1 .. l_employee_ids.COUNT
   LOOP
      check_eligibility (l_employee_ids (indx),
                         increase_pct_in,
                         l_eligible);

      IF NOT l_eligible
      THEN
         l_employee_ids.delete (indx);
      END IF;
   END LOOP;
 
But now my l_employee_ids collection may have gaps in it: index values that are undefined between 1 and the highest index value populated by the BULK COLLECT.
No worries. I will simply change my FORALL statement to the following: 
FORALL indx IN INDICES OF l_employee_ids
   UPDATE employees emp
      SET emp.salary =
               emp.salary
             + emp.salary * 
                increase_salary.increase_pct_in
    WHERE emp.employee_id = 
      l_employee_ids (indx);
Now I am telling the PL/SQL engine to use only those index values that are defined in l_employee_ids, rather than specifying a fixed range of values. Oracle Database will simply skip any undefined index values, and
the ORA-22160 error will not be raised.

On PostgreSQL
postgres=# do language plpgsql $$
declare
begin
for i in 1..100000 loop
  update test set info='test' where id=i;
end loop;
end;
$$;
DO
Time: 3509.395 ms

postgres=# do language plpgsql $$
declare 
  i int[];
begin
  select array_agg(x) into i from generate_series(1,100000) t(x); 
  update test set info='test' where id = any(i);
end;                                   
$$;
DO
Time: 1504.004 ms

[参考]
http://docs.oracle.com/cd/B19306_01/appdev.102/b14261/tuning.htm#i48876
http://docs.oracle.com/cd/B19306_01/appdev.102/b14261/forall_statement.htm
http://www.postgresql.org/docs/9.4/static/arrays.html
http://www.oracle.com/technetwork/issue-archive/2012/12-sep/o52plsql-1709862.html