Live migrations is a battle-tested, almost zero downtime migration strategy for Timescale that simplifies the transition process to Timescale, even for large PostgreSQL databases. It leverages logical decoding using pgcopydb to ensure changes made to the source database are applied to the target database in real-time without significant downtime. The process involves creating a replication slot, buffering historical data and live changes into disk, and then applying these changes to the target database. To achieve seamless migration, it is essential to set up environment variables, configure pgcopydb correctly, and perform thorough validation of the migrated data. With live migrations, users can migrate their terabyte-scale PostgreSQL databases to Timescale without significant downtime, ensuring minimal disruption to their applications. The solution is designed for heavy workloads and provides best-in-class performance and reliability for future migrations.