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How to Replicate PostgreSQL to MySQL with NineData

In application consolidation, cloud migration, and standardization projects, teams often need to keep PostgreSQL data synchronized into MySQL. The real challenge is not exporting rows. It is turning schema migration, incremental catch-up, result verification, and final cutover into one controlled workflow.

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

Common scenarios​

  • Syncing PostgreSQL business data into a MySQL-based downstream system.
  • Building continuously updated copies for reporting, testing, or compatibility.
  • Running source and target side by side before final switchover.

What NineData helps you do​

  • Schema replication to initialize target objects.
  • Full replication for historical data loading.
  • Incremental replication to keep the target current while the source is still changing.
  • Data comparison to support pre-cutover verification.

Key preparation items​

  • 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​