ac84879a71
Today we can use the soft-deletes feature from Lucene to maintain a history of a document. This change simply replaces hard-deletes by soft-deletes in Engine. Besides marking a document as deleted, we also index a tombstone associated with that delete operation. Storing delete tombstones allows us to have a history of sequence-based operations which can serve in recovery or rollback. Relates #29530 |
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