--
-- apm_package__singleton_p/1
--
create or replace function apm_package__singleton_p(
  character varying
) returns int4 as $$

declare
	singleton_p__package_key        alias for $1;
        v_singleton_p                   integer;
begin
        select count(*) into v_singleton_p
	from apm_package_types
	where package_key = singleton_p__package_key
        and singleton_p = 't';

        return v_singleton_p;
end;$$ language plpgsql;