A 3-day bug hunt on a 3-person team costs up to €7,200 in lost engineering time. This workshop teaches you to prevent that — unit tests, data tests, and integration tests for PySpark and Databricks Lakeflow, including Spark Declarative Pipelines.
HyperLogLog algorithm described some weeks ago is not the single one approximate solution in the world of Big Data applications. Another one is Count-min sketch.
