Making large Postgres migrations practical: 1TB in 2 hours with PeerDB

PeerDB offers a robust solution for large-scale Postgres to Postgres migrations, emphasizing minimal downtime and high-speed data transfer, as demonstrated in its comparison with pg_dump/pg_restore and native logical replication. This tool is particularly effective for online migrations, offering high initial load throughput and continuous change data capture (CDC) while supporting complex PostgreSQL workloads, including large TOAST columns and schema evolution. PeerDB's architecture enables parallel processing for data transfers, significantly reducing initial load times compared to traditional methods. By leveraging PostgreSQL’s binary format and logical partitioning, PeerDB ensures efficient data migration with preserved data fidelity, even for complex data types, while providing enhanced observability and automatic failure retries to mitigate risks during migrations. Its open-source nature allows for flexibility across different setups, including self-hosted and cloud environments, positioning PeerDB as a versatile tool for teams requiring seamless and reliable database migration solutions.