Remove array values in pgSQL

Question

Is there a way to remove a value from an array in pgSQL? Or to be more precise, to pop the last value? Judging by this list the answer seems to be no. I can get the result I wan

Answer 1

There IS a SIMPLE way to remove a value from an array in PLAIN SQL:

SELECT unnest('{5,NULL,6}'::INT[]) EXCEPT SELECT NULL

it will remove all NULL values from array. Result will be:

#| integer |
------------
1|    5    |
2|    6    |