Apologize first because I am not familiar with database. So I probably did not
find the right doc before posting my question.
I received a chart which is plotted by X - date, and Y - throughput (M/ sec).
It shows that recently (after N Jan) the read/ write throughput was increased
drastically.
So I lookup on the internet, finding doc like [1] points out that some pg_XXXXX
tables, such as pg_stat_user_tables, looks like can be used to check such
stats. For instance,
SELECT schemaname, relname, idx_tup_fetch + seq_tup_read as total_read
FROM pg_stat_user_tables
WHERE idx_tup_fetch is not NULL and idx_tup_fetch + seq_tup_read != 0
ORDER BY total_read desc
LIMIT 10;
Is this a correct way to find tables frequently being read? If not what's a
better way to achieve this? And how about write? Or any other docs that I
should read as well?
I appreciate any suggestions, thanks.
[1]. https://www.postgresql.org/docs/current/monitoring-stats.html
