tablepersubclass
tablepersubclass is a mapping strategy in object-relational mapping (ORM) that is used to store the data for a class hierarchy in a relational database. In this approach, each concrete subclass of a mapped superclass is assigned its own separate table. The table for a subclass typically contains all the columns corresponding to the fields of that subclass, including those inherited from its superclass. This means that data for a subclass is fully contained within its own table, and no joins are generally required to retrieve an instance of a subclass.
This strategy can offer performance advantages when querying specific subclasses, as it avoids the need to