diff --git a/adbc_drivers_validation/model.py b/adbc_drivers_validation/model.py
index 9c81743..ea62810 100644
--- a/adbc_drivers_validation/model.py
+++ b/adbc_drivers_validation/model.py
@@ -151,6 +151,8 @@ class DriverFeatures(BaseModel):
     quirk_get_objects_constraints_foreign_normalized: bool = Field(default=False)
     quirk_get_objects_constraints_primary_normalized: bool = Field(default=False)
     quirk_get_objects_constraints_unique_normalized: bool = Field(default=False)
+    # Some backends report zero for every ordinary DML statement (ex: Databend)
+    quirk_statement_rows_affected_dml_returns_zero: bool = Field(default=False)
 
     def __init__(self, **data: typing.Any) -> None:
         super().__init__(**data)
diff --git a/adbc_drivers_validation/tests/connection.py b/adbc_drivers_validation/tests/connection.py
index 7cf7835..53276cd 100644
--- a/adbc_drivers_validation/tests/connection.py
+++ b/adbc_drivers_validation/tests/connection.py
@@ -103,7 +103,7 @@ def generate_tests(
         elif not f.get_objects and metafunc.definition.name.startswith(
             "test_get_objects_"
         ):
-            marks.append(pytest.mark.xfail(reason="not implemented"))
+            marks.append(pytest.mark.skip(reason="not implemented"))
 
         combinations.append(pytest.param(driver_param, id=driver_param, marks=marks))
     metafunc.parametrize(
diff --git a/adbc_drivers_validation/tests/statement.py b/adbc_drivers_validation/tests/statement.py
index 01fe590..8e3e07f 100644
--- a/adbc_drivers_validation/tests/statement.py
+++ b/adbc_drivers_validation/tests/statement.py
@@ -249,7 +249,10 @@ def test_rows_affected(
             )
             rows_affected = cursor.adbc_statement.execute_update()
             if driver.features.statement_rows_affected:
-                assert rows_affected == 1
+                if driver.features.quirk_statement_rows_affected_dml_returns_zero:
+                    assert rows_affected == 0
+                else:
+                    assert rows_affected == 1
             else:
                 assert rows_affected == -1
 
@@ -258,7 +261,10 @@ def test_rows_affected(
             )
             rows_affected = cursor.adbc_statement.execute_update()
             if driver.features.statement_rows_affected:
-                assert rows_affected == 1
+                if driver.features.quirk_statement_rows_affected_dml_returns_zero:
+                    assert rows_affected == 0
+                else:
+                    assert rows_affected == 1
             else:
                 assert rows_affected == -1
 
@@ -267,7 +273,10 @@ def test_rows_affected(
             )
             rows_affected = cursor.adbc_statement.execute_update()
             if driver.features.statement_rows_affected:
-                assert rows_affected == 1
+                if driver.features.quirk_statement_rows_affected_dml_returns_zero:
+                    assert rows_affected == 0
+                else:
+                    assert rows_affected == 1
             else:
                 assert rows_affected == -1