The main reason I can think of would be when you have hundreds of workers access...

Exuma on July 24, 2020 | parent | context | favorite | on: GoodJob – a Postgres-based ActiveJob back end for ...

The main reason I can think of would be when you have hundreds of workers accessing a DB but the DB only has a small connection limit, say 200 or something. You can have the workers access the connection through pgBouncer to bring that up into the thousands.

sideofbacon on July 24, 2020 [–]

Thanks! That's really helpful context.