From c23fcad4495b06cab8a486e4db000a38526f7e66 Mon Sep 17 00:00:00 2001
From: R-Palazzo <romainpalazzo@gmail.com>
Date: Thu, 3 Sep 2026 17:48:22 +0100
Subject: [PATCH 1/4] def 2956

---
 sdv/datasets/demo.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sdv/datasets/demo.py b/sdv/datasets/demo.py
index 0589541f8..1512d1f5c 100644
--- a/sdv/datasets/demo.py
+++ b/sdv/datasets/demo.py
@@ -224,6 +224,12 @@ def is_direct_json_under_prefix(key):
                 raw = _get_data_from_bucket(key, bucket=bucket, client=client)
                 metadict = json.loads(raw)
                 if isinstance(metadict, dict) and metadict.get('METADATA_SPEC_VERSION') == version:
+                    if version != 'V2':
+                        warnings.warn(
+                            'An updated metadata V2 is not available for this dataset so the V1 '
+                            'metadata was returned.\nYou should be able to model and sample with'
+                            ' the V1 metadata, but please report this issue to the DataCebo.'
+                        )
                     return raw
 
             except Exception:

From 48a4d7d172c83b16f2f3ed3c0d1008f434c45260 Mon Sep 17 00:00:00 2001
From: R-Palazzo <romainpalazzo@gmail.com>
Date: Thu, 3 Sep 2026 17:48:35 +0100
Subject: [PATCH 2/4] unit test

---
 tests/unit/datasets/test_demo.py | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/tests/unit/datasets/test_demo.py b/tests/unit/datasets/test_demo.py
index ab1c93c54..1fdcd68de 100644
--- a/tests/unit/datasets/test_demo.py
+++ b/tests/unit/datasets/test_demo.py
@@ -417,6 +417,11 @@ def test__get_first_v2_metadata_bytes_falls_back_to_v1(mock_get):
     v2 = json.dumps({'METADATA_SPEC_VERSION': 'V1'}).encode()
     bad = b'not-json'
     v1 = json.dumps({'METADATA_SPEC_VERSION': 'V1'}).encode()
+    expected_warning = re.escape(
+        'An updated metadata V2 is not available for this dataset so the V1 '
+        'metadata was returned.\nYou should be able to model and sample with'
+        ' the V1 metadata, but please report this issue to the DataCebo.'
+    )
 
     def side_effect(key, bucket, client):
         return {
@@ -433,9 +438,10 @@ def side_effect(key, bucket, client):
     ]
 
     # Run
-    got = _get_first_v2_metadata_bytes(
-        contents, 'single_table/dataset/', bucket='test_bucket', client=None
-    )
+    with pytest.warns(UserWarning, match=expected_warning):
+        got = _get_first_v2_metadata_bytes(
+            contents, 'single_table/dataset/', bucket='test_bucket', client=None
+        )
 
     # Assert
     assert got == v1

From 089381165b83c74cb5e6b1102e0d42782fb12fb4 Mon Sep 17 00:00:00 2001
From: R-Palazzo <romainpalazzo@gmail.com>
Date: Thu, 3 Sep 2026 17:48:42 +0100
Subject: [PATCH 3/4] integration test

---
 tests/integration/datasets/test_demo.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tests/integration/datasets/test_demo.py b/tests/integration/datasets/test_demo.py
index 8799bc298..d1c347367 100644
--- a/tests/integration/datasets/test_demo.py
+++ b/tests/integration/datasets/test_demo.py
@@ -137,6 +137,20 @@ def test_download_demo_adventure_works_raises_warning(preprocess_mock):
         download_demo(modality='multi_table', dataset_name='adventure-works')
 
 
+def test_download_demo_raise_warning_v2_metadata():
+    """Test that a warning is raised if the V2 metadata is not available."""
+    # Setup
+    expected_warning = re.escape(
+        'An updated metadata V2 is not available for this dataset so the V1 '
+        'metadata was returned.\nYou should be able to model and sample with'
+        ' the V1 metadata, but please report this issue to the DataCebo.'
+    )
+
+    # Run and Assert
+    with pytest.warns(UserWarning, match=expected_warning):
+        download_demo(modality='single_table', dataset_name='fake_hotel_guests')
+
+
 def test_save_resource(tmp_path):
     """Test saving an arbitary demo resource."""
     # Setup

From d92ef8f457b01fd71fef8488a7a1cf1e7e60bb7c Mon Sep 17 00:00:00 2001
From: R-Palazzo <romainpalazzo@gmail.com>
Date: Fri, 4 Sep 2026 17:51:45 +0100
Subject: [PATCH 4/4] update message

---
 sdv/datasets/demo.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sdv/datasets/demo.py b/sdv/datasets/demo.py
index 1512d1f5c..c6220af4f 100644
--- a/sdv/datasets/demo.py
+++ b/sdv/datasets/demo.py
@@ -227,8 +227,8 @@ def is_direct_json_under_prefix(key):
                     if version != 'V2':
                         warnings.warn(
                             'An updated metadata V2 is not available for this dataset so the V1 '
-                            'metadata was returned.\nYou should be able to model and sample with'
-                            ' the V1 metadata, but please report this issue to the DataCebo.'
+                            'metadata was returned.\nYou should be able to model and sample with '
+                            'the V1 metadata, but please report this issue to the DataCebo.'
                         )
                     return raw