A 3-day bug hunt on a 3-person team costs up to β¬7,200 in lost engineering time. This workshop teaches you to prevent that β unit tests, data tests, and integration tests for PySpark and Databricks Lakeflow, including Spark Declarative Pipelines.
updateStateByKey function, explained in the post about Stateful transformations in Spark Streaming, is not the single solution provided by Spark Streaming to deal with state. Another one, much more optimized, is mapWithState.
