Beating “Lost in the Middle”: Unified Graph RAG on PostgreSQL

📰 Medium · RAG

Learn how to improve RAG performance by using unified graph RAG on PostgreSQL, boosting $F_1$ scores with relationally injected context

advanced Published 19 Jun 2026
Action Steps
  1. Implement unified graph RAG on PostgreSQL to leverage relational context
  2. Replace naive chunk-based vector lookups with relationally injected context
  3. Evaluate the model's performance using $F_1$ scores
  4. Optimize the model by fine-tuning hyperparameters
  5. Integrate the unified graph RAG with existing data pipelines
Who Needs to Know This

Data scientists and engineers working with RAG models can benefit from this approach to enhance their model's performance, especially when dealing with complex data relationships

Key Insight

💡 Relationally injected context can significantly improve RAG model performance

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Boost RAG performance with unified graph RAG on PostgreSQL!

Key Takeaways

Learn how to improve RAG performance by using unified graph RAG on PostgreSQL, boosting $F_1$ scores with relationally injected context

Full Article

Our evaluation shows that by substituting naive chunk-based vector lookups with relationally injected context, the model’s $F_1$… Continue reading on Medium »
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