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a57c087c89
Unlike atomic_cell_or_collection::equals, compare_atomic_cell_for_merge currently returns std::strong_ordering::equal if two cells are equal in every way except their ttl:s. The problem with that is that the cells' hashes are different and this will cause repair to keep trying to repair discrepancies caused by the ttl being different. This may be triggered by e.g. the spark migrator that computes the ttl based on the expiry time by subtracting the expiry time from the current time to produce a respective ttl. If the cell is migrated multiple times at different times, it will generate cells that the same expiry (by design) but have different ttl values. Fixes #10156 Test: mutation_test.test_cell_ordering, unit(dev) Signed-off-by: Benny Halevy <bhalevy@scylladb.com> Message-Id: <20220302154328.2400717-1-bhalevy@scylladb.com>