The two SQL files really can't be shared due to the differences in those database engines, and even less so if anyone wants to bother to add MySQL support (inevitable, I imagine).
We could write the database schema in some simplified intermediate form and generate the appropriate SQL. If we were using Django's ORM or SQLAlchemy, we would generate that directly from the model class definitions in code.
The two SQL files really can't be shared due to the differences in those database engines, and even less so if anyone wants to bother to add MySQL support (inevitable, I imagine).
We could write the database schema in some simplified intermediate form and generate the appropriate SQL. If we were using Django's ORM or SQLAlchemy, we would generate that directly from the model class definitions in code.