diff --git a/tests/queries/0_stateless/02232_non_negative_derivative.sql b/tests/queries/0_stateless/02232_non_negative_derivative.sql
index f90793c222b..39dc1f83666 100644
--- a/tests/queries/0_stateless/02232_non_negative_derivative.sql
+++ b/tests/queries/0_stateless/02232_non_negative_derivative.sql
@@ -12,22 +12,32 @@ truncate table nnd;
 system stop merges nnd;
 
 INSERT INTO nnd VALUES (1, toDateTime64('1979-12-12 21:21:21.123', 3, 'UTC'), 1.1), (2, toDateTime64('1979-12-12 21:21:21.124', 3, 'UTC'), 2.34), (3, toDateTime64('1979-12-12 21:21:21.127', 3, 'UTC'), 3.7);
-
 INSERT INTO nnd VALUES (4, toDateTime64('1979-12-12 21:21:21.129', 3, 'UTC'), 2.1), (5, toDateTime('1979-12-12 21:21:22', 'UTC'), 1.3345), (6, toDateTime('1979-12-12 21:21:23', 'UTC'), 1.54);
 
 -- shall work for precise intervals
+-- Nanosecond
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 3 NANOSECOND) OVER (PARTITION BY metric ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd;
+-- Microsecond
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 4 MICROSECOND) OVER (PARTITION BY metric ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd;
+-- Millisecond
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 5 MILLISECOND) OVER (PARTITION BY metric ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd;
+-- Second
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 6 SECOND) OVER (PARTITION BY metric ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd;
+-- Minute
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 7 MINUTE) OVER (PARTITION BY metric ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd;
+-- Hour
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 8 HOUR) OVER (ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd;
+-- Day
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 9 DAY) OVER (ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd;
+-- Week
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 10 WEEK) OVER (ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd;
 
 -- shall not work for month, quarter, year (intervals with floating number of seconds)
+-- Month
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 11 MONTH) OVER (PARTITION BY metric ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd; -- { serverError ILLEGAL_TYPE_OF_ARGUMENT }
+-- Quarter
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 12 QUARTER) OVER (PARTITION BY metric ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd; -- { serverError ILLEGAL_TYPE_OF_ARGUMENT }
+-- Year
 SELECT ts, metric, nonNegativeDerivative(metric, ts, INTERVAL 13 YEAR) OVER (PARTITION BY metric ORDER BY ts ASC Rows BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS deriv FROM nnd; -- { serverError ILLEGAL_TYPE_OF_ARGUMENT }
 
 DROP TABLE IF EXISTS nnd;