Added minor description for Drizzle being subject to same table constraint limitations as underlying PowerSync schema. (#45)

Author: Chriztiaan

client-sdk-references/javascript-web/javascript-orm/drizzle.mdx

@@ -219,4 +219,11 @@ For watched queries with Drizzle it's recommended to use the `watch()` function
   // 'James Smith'
 
   ```
-</CodeGroup>
+</CodeGroup>
+
+## Developer Notes
+
+### Table Constraint Restrictions
+
+The Drizzle ORM relies on the underlyng PowerSync table definitions which are subject to certain limitations.
+This means that most Drizzle [constraint features](https://orm.drizzle.team/docs/indexes-constraints) (such as cascading deletes, foreign checks, unique) are currently not supported.