Postgres-based backend used throughout the cluster as the vector store (via pgvector) for n8n RAG pipelines. Metadata columns on the documents table are the primary mechanism for updating and deleting stale chunks via filename match. Also used for tabular SQL-query RAG examples.

Source references

  • [src-006] Nate Herk cluster — Nate Herk — RAG and data ingestion cluster (5 videos)

– Videos referenced: 5uw1wE6niGc, kOKavHnlPik

Robin Cartier perspective

This page is part of Robin Cartier's working AI knowledge graph: a practical research layer for production AI, recommendation systems, experimentation, GEO, and agentic web readiness.

The useful next step is to connect this concept back to applied product leadership and operating models.

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