Check for integer in string array

Question

I am trying to check a string array for existence of a converted integer number. This sits inside of a procedure where:

nc_ecosite is an integer

Answer 1

I found the following to provide the desired result:

IF nc_ecosite in 
(select (unnest(string_to_array(current_consite, ',')))::integer 
from current_site_record 
where current_ecosite_nc::integer = nc_ecosite) THEN
   ecosite := nc_ecosite::integer;