Jinzhong Li created FLINK-32955:
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             Summary: Support state compatibility between enabling TTL and 
disabling TTL
                 Key: FLINK-32955
                 URL: https://issues.apache.org/jira/browse/FLINK-32955
             Project: Flink
          Issue Type: Improvement
          Components: Runtime / State Backends
            Reporter: Jinzhong Li


Currently, trying to restore state, which was previously configured without 
TTL, using TTL enabled descriptor or vice versa will lead to compatibility 
failure and StateMigrationException.

In some scenario, user may enable state ttl and restore from old state which 
was previously configured without TTL;  or vice versa.

It would be useful for users if we support state compatibility between enabling 
TTL and disabling TTL.



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