Recently Amazon Redshift launched a new console interface, which is pretty nice. It actually gives some valuable optimisation tips. A data warehouse is like a sword, you need to constantly sharpen it so it won’t lose its edge.
Recently I was working on the deployment of a predictive model built by my dear friend valued ex-colleague. Here I will share some thoughts and challenges I have encountered during its production deployment.
In linear algebra, an idempotent matrix is a matrix which, when multiplied by itself, yields itself.
This article briefly records the step to reschedule a DAG on Apache Airflow
