make cached connection functions tests meaningful with debug_invalidate_system_caches_always

When Who What
2021-07-21 10:08:54 Bharath Rupireddy (bharathrupireddy) Closed in commitfest 2021-07 with status: Rejected
2021-07-15 12:16:35 vigneshwaran C (vignesh.postgres) New status: Waiting on Author
2021-05-11 04:11:29 Bharath Rupireddy (bharathrupireddy) Changed authors to Bharath Rupireddy (bharathrupireddy)
2021-05-11 04:11:20 Bharath Rupireddy (bharathrupireddy) Attached mail thread CALj2ACVM+7TwOS+yXOdZrAmy5gWkrmQf6qwmdHrPWrVhf9Wt_w@mail.gmail.com
2021-05-11 04:11:20 Bharath Rupireddy (bharathrupireddy) Created patch record