> Pgbench is a simple benchmark tool by design, and I wonder if adding > a multiconnect feature will cause pgbench to be used incorrectly.
Maybe, but I do not see how it would be worse that what pgbench already allows.
I agree that pgbench is simple; perhaps really too simple when it comes to being able to measure much more than basic query flows. What pgbench does have in its favor is being distributed with the core distribution.
I think there is definitely space for a more complicated benchmarking tool that exercises more scenarios and more realistic query patterns and scenarios. Whether that is distributed with the core is another question.