An. IoT startup has hired you to review their Cloud Bigtable design. The database stores data generated by over 100,000 sensors that send data every 60 seconds. Each row contains all the data for one sensor sent during an hour. Hours always start at the top of the hour. The row-key is the sensor ID concatenated to the hour of the day followed by the date. What change, if any, would you recommend to this design?

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