The current version of the patch does not apply, so I could not test it.
Here are some comments I have.
Pgbench is a simple benchmark tool by design, and I wonder if adding
a multiconnect feature will cause pgbench to be used incorrectly.
A real world use-case will be helpful for this thread.
For the current patch, Should the report also cover per-database statistics (tps/latency/etc.) ?
Regards,
Sami Imseih
Amazon Web Services