Fix ATTACH in test

Author: treysp

tests/core/engine_adapter/test_duckdb.py

@@ -115,7 +115,7 @@ def test_ducklake_partitioning(adapter: EngineAdapter, duck_conn, tmp_path):
 
     duck_conn.install_extension("ducklake")
     duck_conn.load_extension("ducklake")
-    duck_conn.execute(f"ATTACH 'ducklake:{catalog}';")
+    duck_conn.execute(f"ATTACH 'ducklake:{catalog}.ducklake' AS {catalog};")
 
     # no partitions on catalog creation
     partition_info = duck_conn.execute(