Jul 28
How to turn a 5GB messy dataset into fast, trustworthy search. A practical guide by @ingoampt on canonical mapping, indexing, and why standard text search silently fails constructional queries. Master Checklist: ✅ Copy raw data into SQL exactly before changing anything. ✅ Give every source field a stable ID for provenance. ✅ Preserve order with an explicit position column. ✅ Write each item atomically with a savepoint. ✅ Baselining with lexical retrieval (BM25) before adding embeddings. ✅ Ranking: lower FTS5 score is better. ✅ Prefer abstention over a confident wrong answer. #SQLite #Python #FTS5 #BM25 #DataEngineering #SearchSystems #CodingTips
