Mi INSERT tardaba 25 minutos y no era culpa de los datos: construyendo un Data Warehouse de e-commerce con PostgreSQL

The article dives into the challenges faced while building a data warehouse for e-commerce using PostgreSQL. Despite having clean data and correct SQL queries, loading 112,647 rows took over 25 minutes, baffling the author. The real issue was elsewhere, and uncovering this took center stage in the project, providing valuable insights into optimizing data processing. This journey underscores the complexities of creating a functional and efficient data warehouse, highlighting the importance of performance tuning beyond just data quality and query optimization.