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- original mode -> deletion vectors mode: can be directly switched by perform a full compaction, then set `deletion-vectors.enabled` = `true`, and time travel to the snapshots before enabled will be prohibited.
- deletion vectors mode -> original mode, in theory, perform a full compaction, then clean up the old snapshot, and then set `deletion-vectors.enabled` = `false`, and time travel to the snapshots before enabled will be prohibited.
Future work
- Integrate deletion vectors with append table
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