Questions about setting an array element value outside of the update

[Maxim Boguk <maxim.boguk@xxxxxxxxx>]

Lets say i have subquery which produce array[], position and new_value

Is here less clumsy way to set  array[position] to the new_value (not update but just change an element inside an array) than:

SELECT

        _array[1:pos-1]
        ||newval
        ||_array[_pos+1:array_length(_array, 1)]
FROM 
(
    SELECT _array,
                   pos,
                   newval
     FROM
                   some_colmplicated_logic

);

The: 
        _array[1:pos-1]
        ||newval
        ||_array[_pos+1:array_length(_array, 1)]
part is very clumsy for my eyes.

PS: that is just small part of the complicated WITH RECURSIVE iterator in real task.

-- 
Maxim Boguk
Senior Postgresql DBA.