Do I need to use InnoDB tables with MySQL?
No. We defaulted to InnoDB table types in early Propel release just because these table types offer true foreign key constraints and transaction support. Obviously supporting transactions and fkey constraints has its advantages for Propel, but you are able to use MySQL’s native (and faster) MyISAM table types. This is probably a good idea if your application is primarily using Propel for reading data. To change the table type, specify propel.mysql.tableType=[MyISAM|InnoDB] (case-sensitive) property in your build.properties file.
