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

The simplest way to remove last value:

array1 = array[1,2,3]
array1 = ( select array1[1:array_upper(array1, 1) - 1] )