BigQuery Full Table Scan: Why Your Date Filter Ignored Partitioning (And Scanned 5 Years of Data)
It is a quiet Friday afternoon. You need to pull a quick report on yesterday’s transactions to check a minor discrepancy in the sales dashboard. You know the company’s central analytics table holds five years of historical data and weighs roughly 50 Terabytes. But you are a smart data professional. You know that the table…
