Vector Database

🐘 Installing and Deploying PostgreSQL + pgvector in Docker # This article shows how to quickly deploy a PostgreSQL database with the pgvector extension in a Docker Compose environment, so your local or development setup can support vector retrieval and AI applications (LangChain, RAG, semantic search, and the like). 📦 1. Prepare the Environment # Make sure your system has:

Building a Local RAG with LangChain + Ollama + pgvector: A Complete Hands-On Walkthrough from 0 to 1 (with uv Dependency Management and an Interview Guide) # This post is a directly actionable document. Follow it top to bottom and you will build a local RAG (retrieval-augmented generation) system from scratch and understand the key concepts and code. All core scripts come with comments to make learning and interview review easier.