fix incorrect message

Author: themisvaltinos

sqlmesh/core/console.py

@@ -1990,7 +1990,8 @@ def show_table_diff_details(
         """Display information about which tables are identical and which are diffed"""
 
         if (
-            len(models_no_diff) < self.TABLE_DIFF_MODELS_DISPLAY_THRESHOLD
+            models_no_diff
+            and len(models_no_diff) < self.TABLE_DIFF_MODELS_DISPLAY_THRESHOLD
             or self.verbosity == Verbosity.VERY_VERBOSE
         ):
             m_tree = Tree("\n[b]Models without changes:")

sqlmesh/core/context.py

@@ -1660,12 +1660,11 @@ def table_diff(
                     else:
                         models_no_diff.append(model_fqn)
 
-            self.console.show_table_diff_details(
-                models_no_diff,
-                [model[0].name for model in models_to_diff],
-            )
-
             if models_to_diff:
+                self.console.show_table_diff_details(
+                    models_no_diff,
+                    [model[0].name for model in models_to_diff],
+                )
                 if models_without_grain:
                     model_names = "\n".join(
                         f"─ {model.name} \n  at '{model._path}'" for model in models_without_grain