A DLT pipeline includes the following streaming tables:
• raw_iot ingests raw device measurement data from a heart rate tracking device.
• bpm_stats incrementally computes user statistics based on BPM measurements from raw_iot.
How can the data engineer configure this pipeline to be able to retain manually deleted or updated records in the raw_iot table, while recomputing the downstream table bpm_stats table when a pipeline update is run?