The Read Model, also known as the Query Model, is a pure denormalized data model lifted from Domain concerns. In fact, with CQRS, all the read concerns are treated as reporting processes, an infrastructure concern. In general, when using CQRS, the Read Model is subject to the needs of the UI and how complex the views compounding the UI are. In a situation where the Read Model is defined in terms of relational databases, the simplest approach would be to set one-to-one relationships between database tables and UI views. These database tables and UI views will be updated using Write Model projections triggered from the Domain Events published by the write side:
-- Definition of a UI view of a single post with its commentsCREATE ...
