\set ECHO 0 BEGIN; -- disable the notices for the create script (shell types etc.) SET client_min_messages = 'WARNING'; \i sql/adaptive_counter--1.3.2.sql SET client_min_messages = 'NOTICE'; \set ECHO all SELECT adaptive_distinct(id) BETWEEN 99000 AND 110000 val FROM generate_series(1,100000) s(id); SELECT adaptive_distinct(id::text) BETWEEN 99000 AND 110000 val FROM generate_series(1,100000) s(id); DO LANGUAGE plpgsql $$ DECLARE v_counter adaptive_estimator := adaptive_init(0.01,10000); v_counter2 adaptive_estimator := adaptive_init(0.01,10000); v_estimate real; v_tmp real; BEGIN FOR i IN 1..10000 LOOP PERFORM adaptive_add_item(v_counter, i); PERFORM adaptive_add_item(v_counter2, 10000 + i); END LOOP; SELECT adaptive_get_estimate(v_counter) INTO v_estimate; SELECT adaptive_get_error(v_counter) INTO v_tmp; RAISE NOTICE 'error = %',v_tmp; SELECT adaptive_get_ndistinct(v_counter) INTO v_tmp; RAISE NOTICE 'ndistinct = %',v_tmp; SELECT adaptive_get_item_size(v_counter) INTO v_tmp; RAISE NOTICE 'item size = %',v_tmp; IF (v_estimate BETWEEN 9900 AND 10100) THEN RAISE NOTICE 'estimate OK'; ELSE RAISE NOTICE 'estimate ERROR'; END IF; v_counter := adaptive_merge(v_counter, v_counter2); SELECT adaptive_get_estimate(v_counter) INTO v_estimate; SELECT adaptive_get_error(v_counter) INTO v_tmp; RAISE NOTICE 'error = %',v_tmp; SELECT adaptive_get_ndistinct(v_counter) INTO v_tmp; RAISE NOTICE 'ndistinct = %',v_tmp; SELECT adaptive_get_item_size(v_counter) INTO v_tmp; RAISE NOTICE 'item size = %',v_tmp; IF (v_estimate BETWEEN 2*9900 AND 2*10100) THEN RAISE NOTICE 'estimate OK'; ELSE RAISE NOTICE 'estimate ERROR'; END IF; END$$; ROLLBACK;