Azure Database for PostgreSQL and MySQL

Azure provides fully managed database services for the two most popular open-source relational database engines: PostgreSQL and MySQL. These services handle infrastructure management, patching, backups, and high availability while remaining compatible with the community editions of each engine.

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Azure Database for PostgreSQL

Deployment Options

Option	Status	Description
Flexible Server	Recommended	Full control over configuration, zone-redundant HA, and stop/start capability
Single Server	Retirement announced	Simpler model with fewer options; migrate to Flexible Server
Cosmos DB for PostgreSQL	Available	Distributed PostgreSQL (Citus) for multi-node, horizontally scaled workloads

Flexible Server is the recommended deployment for all new PostgreSQL workloads on Azure.

Flexible Server Architecture

Availability Zone 1              Availability Zone 2
┌──────────────────┐             ┌──────────────────┐
│  Primary Server  │  ────────>  │  Standby Server  │
│  (Compute + Data)│  synchronous│  (Compute + Data)│
└──────────────────┘  replication└──────────────────┘