Summary:
- This article discusses how to perform zero-downtime PostgreSQL upgrades using logical replication. Logical replication allows you to replicate data from one PostgreSQL database to another, even if they are running different versions of the software.
- The article explains the steps involved in setting up logical replication, including creating a standby server, configuring the replication, and performing the upgrade. This process ensures that your application can continue to run without interruption during the upgrade.
- The article also covers some of the potential challenges and limitations of using logical replication for PostgreSQL upgrades, such as the need to handle schema changes and the potential for data loss if the replication process is not properly configured.