Add clickstream-direct-to-lakehouse demo (Zerobus to Managed Delta, transformWithState)#248
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…ransformWithState) Part A of replacing the Spark Streaming - Advanced (streaming-sessionization) demo. Lands app clickstream events directly into a Unity Catalog managed Delta table via Zerobus, then sessionizes with Structured Streaming transformWithState and MERGE-upserts a sessions table. New demo; does not modify the existing streaming-sessionization demo. FEIP-7706 Co-authored-by: Isaac
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New product demo:
product_demos/clickstream-direct-to-lakehouse.Lands application clickstream events directly into a Unity Catalog managed Delta table via Zerobus (no Kafka, no message bus), then sessionizes with Structured Streaming
transformWithState(event-time timers, dedup for Zerobus at-least-once) and MERGE-upserts asessionstable read with plain SQL. Modernizes the streaming-sessionization story to Zerobus +transformWithState, replacing the legacyapplyInPandasWithState.Notebooks:
00-setup-table- define the events UC managed Delta table.01-zerobus-producer- stream synthetic clickstream events in via the Zerobus REST API (one-time Zerobus service principal + secret-scope setup is documented in the notebook).02-sessionize- dedupe, sessionize withtransformWithState, MERGE into a sessions table.New demo; does not modify the existing
streaming-sessionizationdemo. Images: databricks-demos/dbdemos-resources#58.