Stop Letting Naive Chunking Ruin Your RAG Pipelines
Part 1 of 7 — RAG Systems in Practice Stop Letting Naive Chunking Ruin Your RAG Pipelines When a RAG system answers a query with confidence and gets it totally wrong, the initial reaction is usually to blame the model's temperature or swap vector databases. Most of the time, the real bug happened hours earlier when you ingested the raw PDF. What actually breaks when you use fixed character splitting? Standard tutorials tell you to take your document and run a RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=50) . It works fine for demo apps, but here is what happens on enterprise data: Tables turn into nonsense: A 10-column financial or spec table gets chopped right in half. Row entries lose their column headers, turning structured data into random numbers. Headers detach from paragraphs: The section heading ### Rate Limits lands in Chunk A, while the actual rate l...