SQL Tables
The Astro D2 integration can be used to create diagrams representing SQL tables:
```d2Cloud: { events: { shape: sql_table id: int {constraint: primary_key} }
pages: { shape: sql_table id: int {constraint: primary_key} event: int {constraint: foreign_key} content: blob } pages.event -> events.id
Queue -> events}```
The above code block will be rendered as the following diagram: