ruby script which migrates data from a MySQL database to PostgreSQL
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composite_primary_keys
LICENSE
README.md
mysql_to_postgresql

README.md

Mysql to PostgreSQL

This is a ruby script which migrates data from a MySQL database to PostgreSQL. It can be run as a one off migration, or as a delta script to copy newly modified data.

Prerequisites

  • Designed to work on a Rails 2.x application
  • Majority of tables should have:
    • primary key column (usually called id, but can be changed)
    • updated_at column
    • index on updated_at

Steps

  • Edit mysql_to_postgresql
    • Put in database credentials
    • Add any tables without an updated_at to TABLES_WITHOUT_UPDATED_AT
  • Update database.yml in your application to point to PostgreSQL
  • Create database tables by running: rake db:create db:migrate
  • Run ./mysql_to_postgresql

License

See the LICENSE file.