Lean Data Pipelines: How PostgreSQL Replication and DuckDB Replace Kafka and Spark

Organizations often over-engineer data pipelines with Kafka, Spark, and cloud warehouses when simpler solutions suffice. pg-warehouse demonstrates that PostgreSQL's native replication and DuckDB's analytical engine can eliminate these entire systems while maintaining scale and consistency. This shift challenges the industry default architecture and offers a practical alternative for teams focused on delivering features rather than managing infrastructure.