saivarnik.hashnode.dev ELASTIC BLOGATHON 2026 Building a Simple RAG Pipeline with Elasticsearch as a Vector Database: A Practical Guide with Architecture, Code & Lessons LearnedBy Software Engineer (GenAI / Search) | Elastic Blogathon 2026 | Theme: Vectorized Thinking Abstract Retrieval-Augmented Generation (RAG) is reshaping how developers build AI-powered search and q1d ago·10 min read