What happens when properties are changed in the data model of a case?

When properties are changed in the data model of a case, the BLOB (Binary Large Object) maintains the flexibility without requiring schema changes. A BLOB allows for a dynamic storage structure that does not rigidly define the data model in the same way traditional database tables do. This means that when properties within the case are updated or modified, the BLOB can accommodate these changes without necessitating adjustments to the underlying database schema.

This flexibility is critical in maintaining performance and adaptability within the application as it evolves. It allows developers to introduce new features or data requirements without the overhead that comes with altering a conventional database structure, such as having to reindex tables or migrate existing data. The BLOB effectively abstracts away some of the complexities involved in managing changes to data models, making it easier to implement changes in a more agile manner.

In scenarios where traditional options might require significant planning and execution for migrations or schema updates, the use of BLOB fields suggests a more streamlined approach, aligning with the principles of flexibility and scalability central to Pega's data handling capabilities.