How convert array elements to rows?

[sigra]

I need to convert array elements to rows. Suppose that I have the array {5,77,39,19}. I need it as a table with the index in one column and the element in the other column:

index | element
------+--------
    1 |       5
    2 |      77
    3 |      39
    4 |      19

Which command does this?

[rski]

Maybe like that

rski=> select i, (ARRAY[11,22,33])[i] from generate_series(1,array_upper(ARRAY[11,22,33],1)) i;
 i | array
---+-------
 1 |    11
 2 |    22
 3 |    33
(3 rows)
 

If you know the dimension of a table you can replace array_upper with it.