Azure & Cloud
June 8, 2026Azure HorizonDB vs PostgreSQL pgvector vs AI Search for RAG
Azure HorizonDB reached public preview at Build 2026: a PostgreSQL-compatible, scale-out engine with vector search built in, up to 128 TB of storage and Sweden Central among the five launch regions. For RAG embeddings on Azure the choice now runs three ways, decided by where the source data lives, how much retrieval quality matters and how close you are to Flexible Server's vertical-scaling ceiling.
Azure HorizonDB
PostgreSQL
pgvector
Azure AI Search
RAG
Vector Search
Microsoft Build 2026
Sweden Central
Data Residency
By Falak Mahmood
Database & Backend
May 17, 2026Vector Search 2026: Azure AI Search vs pgvector vs Pinecone
The vector-database market settled in 2025. The 2026 question is less "which novel DB do we adopt" and more "do we need a separate vector store at all." A decision framework across Azure AI Search, pgvector on managed Postgres, and the dedicated managed vector platforms, with the workloads each one handles well.
Vector Search
RAG
Azure AI Search
pgvector
Postgres
By Falak Mahmood