Muliple PostgreSQL hosts as dataprovider

[JonBendtsen]

host, string. Database host. For postgresql and cockroachdb drivers
you can specify multiple hosts separated by commas. 

https://github.com/drakkan/sftpgo/blob/main/docs/full-configuration.md

What happens if I do this? Will SFTPgo keep the data syncronized or will I need to setup the database system to do that?