diff --git a/src/series/mod.rs b/src/series/mod.rs
index 8db9640593..7fc85449d6 100644
--- a/src/series/mod.rs
+++ b/src/series/mod.rs
@@ -44,7 +44,7 @@ impl Series {
     }
     pub fn as_physical(&self) -> DaftResult<Series> {
         let physical_dtype = self.data_type().to_physical();
-        if &physical_dtype == self.data_type() || self.data_type().is_extension() {
+        if &physical_dtype == self.data_type() {
             Ok(self.clone())
         } else {
             self.inner.cast(&physical_dtype)
diff --git a/tests/table/test_from_py.py b/tests/table/test_from_py.py
index 5f90c0736a..3b0396fffa 100644
--- a/tests/table/test_from_py.py
+++ b/tests/table/test_from_py.py
@@ -120,7 +120,7 @@
     "timestamp": pa.timestamp("us"),
 }
 
-if ARROW_VERSION >= (12, 0, 0) and get_context().runner_config.name == "ray":
+if ARROW_VERSION >= (12, 0, 0) and get_context().runner_config.name != "ray":
     ARROW_ROUNDTRIP_TYPES["canonical_tensor"] = pa.fixed_shape_tensor(pa.int64(), (2, 2))
     ARROW_TYPE_ARRAYS["canonical_tensor"] = pa.FixedShapeTensorArray.from_numpy_ndarray(
         np.array(PYTHON_TYPE_ARRAYS["tensor"])
@@ -158,6 +158,7 @@ def test_from_pydict_roundtrip() -> None:
 
 def test_from_pydict_arrow_roundtrip(uuid_ext_type) -> None:
     arrow_roundtrip_types, arrow_type_arrays = _with_uuid_ext_type(uuid_ext_type)
+    print(arrow_roundtrip_types)
     table = Table.from_pydict(arrow_type_arrays)
     assert len(table) == 2
     assert set(table.column_names()) == set(arrow_type_arrays.keys())