Thanks for this - 'pg_stat_statements' definitely looks like a similar feature, in particular because it reflects the count of disk-related operations (not just

Thanks for this - 'pg_stat_statements' definitely looks like a similar feature, in particular because it reflects the count of disk-related operations (not just I/O time). It took some brief configuration but I've been able to try it out locally and will refer to it when doing PostgreSQL query performance tuning in future.