Check Detail
Migration scenarios
Full + incremental migration. The version numbers of both the source instance and the target instance must be greater than or equal to 10.0.
When there is a version inconsistency between the source instance and the target instance, there will be some special compatibility issues, and the task will issue a warning. Please read the compatibility reports of each version on your own to confirm whether there is use of incompatible characteristics in your business.
Synchronization scenarios
Versions earlier than PostgreSQL 10 do not support synchronization. For data synchronization, the version of the target instance must be greater than or equal to that of the source instance.
When there is a version inconsistency, there will be some special compatibility issues, and the task will issue a warning. Please read the compatibility reports of each version on your own to confirm whether there is use of incompatible characteristics in your business.
Fix
Check the source and target databases according to the version requirement. If the source database or target database version is unsupported, upgrade the target instance version or use a higher version of the database instance.