DoorDash's AI chatbot is a lesson in conversational search
DoorDash's new AI chatbot , called Ask DoorDash , lets you type what you want in plain words and get a cart instead of scrolling through restaurant me…
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Building Hybrid Search with PostgreSQL, pgvector, and Citus
Search looks simple from the outside. A user types something like: short-range copper module and expects the system to return the right product, maybe…
From Elasticsearch Bottlenecks to Weaviate: How We Built Fast Hybrid Search in Production
For years, Elasticsearch was one of those tools I would almost automatically reach for whenever a system needed search. And honestly, for many use cas…
One Question, Five AI Search Engines, Five Different Answers
I asked five AI search engines the same question: "What's the best CI/CD tool for a small team?" Google AI Overviews recommended GitHub Actions. ChatG…
Hister: The Most Privacy-Respecting Search Engine
Privacy and web search are in constant tension. Every time you type a query into a search engine you are handing over something valuable: a window int…
OpenSearch isn't trying to be a better Elasticsearch anymore
If you inherited an OpenSearch deployment and you're now being asked to run agents on it, Q1 2026 has been unusually good news. OpenSearch 3.5 (Februa…
Vector Search Benchmark: FAISS 1.9 vs. Chroma 0.6 vs. Pinecone 1.6 for 100M Embedding Datasets
At 100 million 768-dimensional embeddings, the gap between top-tier vector search tools isn't just measurable—it's existential. In our 6-month benchma…