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How to Migrate PostgreSQL to TiDB with NineData

As PostgreSQL workloads continue to grow, many teams start evaluating database architectures that can scale out more naturally. TiDB is often part of that discussion because it combines distributed capabilities with a MySQL-compatible ecosystem.

According to the latest NineData replication matrix, PostgreSQL -> TiDB supports schema replication, full replication, incremental replication, and data comparison.

  • Moving PostgreSQL business databases into TiDB for scale-out scenarios.
  • Running source and target in parallel before final cutover.
  • Verifying migration results with data comparison before production switchover.

What NineData helps you do​

  • Schema replication for object initialization.
  • Full replication for historical data loading.
  • Incremental replication to keep target data up to date during migration.
  • Data comparison to support acceptance and cutover decisions.

Key source-side preparation​

  • PostgreSQL must enable logical replication parameters.
  • Set wal_level to logical.
  • Make sure max_replication_slots and max_wal_senders are greater than 1.
  • Set wal_sender_timeout to 0.

Learn more​