pgvector with LlamaIndex: Build a RAG Pipeline on PostgreSQL

📰 Dev.to · Yasser B.

Learn to build a RAG pipeline on PostgreSQL using pgvector and LlamaIndex for efficient data retrieval and indexing

intermediate Published 20 May 2026
Action Steps
  1. Install pgvector on your PostgreSQL database to enable vector data type support
  2. Configure LlamaIndex for data ingestion and indexing
  3. Build a RAG pipeline using LlamaIndex and pgvector to enable efficient data retrieval
  4. Test the RAG pipeline with sample data to ensure correct functionality
  5. Optimize the pipeline for production use by fine-tuning parameters and indexing strategies
Who Needs to Know This

Data engineers and developers working with LLM applications can benefit from this pipeline to improve data ingestion, indexing, and retrieval

Key Insight

💡 Combining pgvector and LlamaIndex enables efficient data retrieval and indexing for LLM applications on PostgreSQL

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🚀 Build a RAG pipeline on PostgreSQL with pgvector and LlamaIndex for efficient LLM data retrieval! 🚀

Key Takeaways

Learn to build a RAG pipeline on PostgreSQL using pgvector and LlamaIndex for efficient data retrieval and indexing

Full Article

LlamaIndex is purpose-built for the data layer of LLM applications: ingestion, indexing, retrieval,...
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