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9b9609c65b
Merged patch set by Piotr Dulikowski: This change corrects condition on which a row was considered expired by its TTL. The logic that decides when a row becomes expired was inconsistent with the logic that decides if a single cell is expired. A single cell becomes expired when expiry_timestamp <= now, while a row became expired when expiry_timestamp < now (notice the strict inequality). For rows inserted with TTL, this caused non-key cells to expire (change their values to null) one second before the row disappeared. Now, row expiry logic uses non-strict inequality. Fixes #4263, Fixes #5290. Tests: unit(dev) python test described in issue #5290