What are the different methods of replication in PostgreSQL?

What are the different methods of replication in PostgreSQL?

PostgreSQL offers several replication methods, including streaming replication, logical replication, and physical replication. Would you like to know more about a specific method?

Can you explain streaming replication?

Streaming replication allows for real-time data replication from a primary server to one or more standby servers. It uses a continuous stream of WAL (Write Ahead Log) files to keep the standby servers updated.

What about logical replication?

Logical replication allows for more flexibility, enabling you to replicate specific tables or databases. It uses a publish-subscribe model, which is useful for selective data sharing.

Are there any downsides to using these methods?

Yes, each method has its trade-offs. For instance, streaming replication requires more resources and can be complex to set up, while logical replication may introduce latency.