Checking Details
Migration scenarios
For the full + incremental migration, if the source database runs PostgreSQL 9.4, 9.5, or 9.6, it is necessary to refer to the guide to install the tencent_decoding plugin; if the plugin is not installed, the source instance version and target instance version must be 10.0 or later for the Full + incremental migration. When the source and target instance versions differ, certain compatibility issues may arise, and the task will issue a warning. Review the compatibility reports for each version to determine whether your business uses any incompatible features.
Synchronization scenarios
PostgreSQL versions earlier than 10 do not support synchronization. For data synchronization, the target instance version must be greater than or equal to the source instance version.
When the versions differ, certain compatibility issues may arise, and the task will issue a warning. Review the compatibility reports for each version to determine whether your business uses any incompatible features.
Fixing Methods
Check source and target database versions against the version requirements. If the versions are not supported, upgrade the target instance version or use a database instance with a higher version.