PeerDB has introduced an efficient solution for replicating data from Postgres to ClickHouse by utilizing MinIO as an open-source alternative to Amazon S3. This integration simplifies the setup process and eliminates the need for users to provide a separate bucket for PeerDB's ClickHouse integration. The method allows for efficient replication with latencies under 30 seconds and high throughput rates. Additionally, MinIO provides a sleek UI for managing internal Avro files created during the replication process.