PostgreSQL: Passing an array of record to a stored procedure

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create type my_type as (val1 int, val2 int);   create function my_function(arr my_type[]) returns text language plpgsql as $$ begin   return arr::text; end; $$;   select my_function(array[row(1,2)::my_type, row(3,4)::my_type]);       my_function -------------------  {"(1,2)","(3,4)"} (1 row)