Zero-ETL approach to analytics on Bigtable data using BigQuery

Modern businesses are increasingly relying on real-time insights to stay ahead of their competition. Whether it's to expedite human decision-making or fully automate decisions, such insights require the ability to run hybrid transactional analytical workloads that often involve multiple data sources. BigQuery is Google Cloud’s serverless, multi-cloud data warehouse that simplifies analytics by bringing together data from multiple sources. Cloud Bigtable is Google Cloud's fully-managed, NoSQL database for time-sensitive transactional and analytical workloads. Customers use Bigtable for a wide range of use cases such as real time fraud detection, recommendations, personalization and time series. Data generated by these use cases has significant business value.  Historically, while it has been possible to use ETL tools like Dataflow to copy data from Bigtable into BigQuery to unlock this value, this approach has several shortcomings, such as data freshness issues and paying twice for the