I’m encountering an issue on backups using pg_basebackup. I’ve noticed that the size of the pg_basebackup is consistently more than 10GB larger compared to the backup size on our standby server. What could be the reason? Both servers are same in configuration. What settings do you recommend to optimize the backup size?

I’d appreciate any insights or suggestions you have on managing and reducing the size of pg_basebackup. Thanks in advance for your help!