fix: enable multiple databases support for MotherDuck

MotherDuck supports multiple databases, so the explorer tree
needs to pass the database name through to build correct queries.

Author: Maxteabag

sqlit/domains/connections/providers/motherduck/adapter.py

@@ -22,6 +22,11 @@ def supports_process_worker(self) -> bool:
         """MotherDuck handles concurrency server-side."""
         return True
 
+    @property
+    def supports_multiple_databases(self) -> bool:
+        """MotherDuck supports multiple databases."""
+        return True
+
     def connect(self, config: ConnectionConfig) -> Any:
         """Connect to MotherDuck cloud database."""
         duckdb = self._import_driver_module(

tests/unit/test_motherduck_adapter.py

@@ -44,6 +44,14 @@ def test_motherduck_schema_uses_password_field():
     assert password_field.label == "Access Token"
 
 
+def test_motherduck_supports_multiple_databases():
+    """Test MotherDuck reports support for multiple databases."""
+    from sqlit.domains.connections.providers.motherduck.adapter import MotherDuckAdapter
+
+    adapter = MotherDuckAdapter()
+    assert adapter.supports_multiple_databases is True
+
+
 def test_motherduck_build_select_query_with_database():
     """Test MotherDuck uses three-part names (database.schema.table)."""
     from sqlit.domains.connections.providers.motherduck.adapter import MotherDuckAdapter