Exact same output - pg_stat_statements

Hi, Whenever I am running the below query on one of my Azure PostgreSQL
PaaS instances I am getting exact same output. I feel it shows old
information but as far as i know pg_stat_statements only shows current
information and not past right ? It may be a bug?

SELECT dbid,queryid,substring(query, 1, 50) AS short_query,
round(total_time::numeric, 2) AS total_time,
calls,
round(mean_time::numeric, 2) AS mean,
round((100 * total_time / sum(total_time::numeric) OVER
())::numeric, 2) AS percentage_cpu
FROM pg_stat_statements
ORDER BY total_time DESC
LIMIT 20;

I have erased the query text from the screenshot below. but Please look at
the rest of the columns which are exactly the same. How it is possible ?

[image: image.png]

Thanks.