Extract Upgrade Considerations

If you are upgrading multiple Extract processes that operate in a consolidated configuration (many sources to one target), upgrade one Extract at a time.

The output trail file is automatically rolled over when the Extract restarts and the Extract version is upgraded.

Because the TIMEZONE datatype is managed differently with Oracle GoldenGate 21c and higher releases, you may need to run the ALTER REPLICAT extseqno command to synchronize with newer trail files after consuming the old trail file written by Extract version 1.

When a database is upgraded to a higher binary version and then downgraded to a lower binary version, any existing captures cannot continue mining. The captures have to be dropped and new Extracts have to be created to continue.