How do Exception, do nothing and carry on - Mailing list pgsql-sql

The function in the following block code may fail.

How to make it to carry on by ignoring exception?

Something like Python's try catch.

for i in (select distinct id from id_table) 

  loop

         raise notice '%', i;

           insert into my_table(id, last, arr, count) SELECT i, * from my_function(i) f(last int, arr int[], count int);

           commit;

  end loop;