https://dataengai.com/ AI for data engineers. No hype, just what works in production. en-us https://dataengai.com/posts/jev-ep1-judge-all-rows/ https://dataengai.com/posts/jev-ep1-judge-all-rows/ Thu, 24 Sep 2026 00:00:00 GMT MotherDuck ran the numbers on judging all 100,000 rows: 89% accuracy, 40 seconds, fifty cents. The blocker was never accuracy. It was price. https://dataengai.com/posts/airflow-332-one-way-door/ https://dataengai.com/posts/airflow-332-one-way-door/ Wed, 23 Sep 2026 00:00:00 GMT pandas 3 renames the DataFrame class path and XComs record the old one. Upgrade Airflow on every worker first, or the error message will send you chasing your config. https://dataengai.com/posts/dbt-ai-default-on/ https://dataengai.com/posts/dbt-ai-default-on/ Tue, 22 Sep 2026 00:00:00 GMT From September 1, Wizard and Copilot ship enabled and every future dbt AI feature auto-enables. The meter is running, and the pool is shared. https://dataengai.com/posts/demo-worked-product-wont/ https://dataengai.com/posts/demo-worked-product-wont/ Mon, 21 Sep 2026 00:00:00 GMT Your demo ran on ten hand-picked examples. Production is the long tail of real inputs. Four things break, and none of them are the model. https://dataengai.com/posts/long-context-rot/ https://dataengai.com/posts/long-context-rot/ Mon, 21 Sep 2026 00:00:00 GMT 2:14 AM. The bot is inventing refund policies. The retriever is fine and the prompt is fine. The problem is the fourteen thousand tokens of dumpster you fed it. https://dataengai.com/posts/rag-is-just-a-data-pipeline/ https://dataengai.com/posts/rag-is-just-a-data-pipeline/ Sun, 20 Sep 2026 00:00:00 GMT Ingest, chunk, embed, index, retrieve, generate. The model is the last box in the diagram, and everything before it is your world.