PARAM_USED
get_static_filter(call->fn->symbol), PARAM_USED, param, printed_name);
get_static_filter(call->fn->symbol), PARAM_USED, param, printed_name);
get_static_filter(call->fn->symbol), PARAM_USED);
select_return_implies_hook(PARAM_USED, &set_param_used);
sql_insert_return_implies(PARAM_USED, arg, name, "");