4 ms·"non-blocking reads in the past" Sounds like google's finally invented time travel.by eluos 14y ago"non-blocking reads in the past" Sounds like google's finally invented time travel.vital_sol 14y agoActually, this is exactly how transactions in Oracle work. The difference is - one db server (Oracle) vs. distributed system (Google)pdog 14y agoOracle doesn't have to be one DB server. Check out Oracle RAC for instance.