How does Propel handle id generation (like auto-increment)?
Propel supports only native id generation. That means that for MySQL Propel will use AUTO_INCREMENT, IDENTITY() for MS SQL Server, CREATE SEQUENCE … for PostgreSQL, etc. For those familiar with how Torque does things, it’s worth noting that we abandoned the Turbine ID-BROKER system because sequence/auto-increment support exists natively in the db backends we plan to support.