Many times, we see PostgreSQL users getting confused about the query/statement duration reported in PostgreSQL logs. Other PostgreSQL tools like pgBadger present the same data based on the log file, which further increases the confusion. Knowing the full impact of network-related overhead and cursors is important not only to alleviate the confusion but also to [&]

https://www.percona.com/blog/impact-of-network-and-cursor-on-query-performance-of-postgresql/