Blog · Category

RAG

3 posts in this category.

MAY 2026
RAG · 12 · 8 min

RAG without a second database

When your vectors live on the same row as the document they describe, the entire CDC-and-backfill layer of a RAG pipeline disappears — and a class of stale-retrieval bugs goes with it.
APR 2026
RAG · 27 · 6 min

The drift window: why your RAG retrieves stale chunks

A customer-visible failure mode unique to two-store RAG — source updates, queue lag, retrievals against the old embedding. Anatomy of one outage and how same-transaction writes eliminate the window.
RAG · 26 · 7 min

Building an agent memory layer on RedDB

A copy-pasteable schema for episodic, semantic, and procedural memory in a single database — with the queries that retrieve them and the bookkeeping that keeps them honest.