Hi,
This thread came from another thread about wal_level [1]. Mainly from backup management tools perspective such as pgBackRest, EDB's BART and pg_probackup, it seems worth talking about a way comprehensively to trace and recognize wal_level changes for various purposes and values like necessity of invalidating old backups for example. In the thread [1], I talk about wal_level='none' but these kind of topic applies changing wal_level to 'minimal' from higher level too. Accordingly, I made this topic as a new independent thread. Currently, these backup management tools described above work when wal_level is higher than minimal because these use physical online backup or wal archiving but giving any useful ideas for backup management related to wal_level changes is welcomed. [1] - https://www.postgresql.org/message-id/TYAPR01MB29901EBE5A3ACCE55BA99186FE320%40TYAPR01MB2990.jpnprd01.prod.outlook.com Best Regards, Takamichi Osumi
