revise logic so that info is provided for small number of models

Author: themisvaltinos

docs/guides/tablediff.md

@@ -135,8 +135,8 @@ sqlmesh table_diff prod:dev --select-model "sqlmesh_example.*"
 
 When diffing multiple models, SQLMesh will:
 
-1. Show the models returned by the selector that exist in both environments, but have no differences
-2. Compare the models that have differences and display the data diff of each model
+1. Show the models returned by the selector that exist in both environments and have differences
+2. Compare these models and display the data diff of each model
 
 > Note: Models will only be data diffed if there's a breaking change that impacts them.
 

sqlmesh/core/console.py

@@ -318,6 +318,7 @@ class Console(
     with them when their input is needed."""
 
     INDIRECTLY_MODIFIED_DISPLAY_THRESHOLD = 10
+    TABLE_DIFF_MODELS_DISPLAY_THRESHOLD = 5
 
     @abc.abstractmethod
     def start_plan_evaluation(self, plan: EvaluatablePlan) -> None:
@@ -1988,7 +1989,10 @@ def show_table_diff_details(
     ) -> None:
         """Display information about which tables are identical and which are diffed"""
 
-        if models_no_diff:
+        if (
+            len(models_no_diff) < self.TABLE_DIFF_MODELS_DISPLAY_THRESHOLD
+            or self.verbosity == Verbosity.VERY_VERBOSE
+        ):
             m_tree = Tree("\n[b]Models without changes:")
             for m in models_no_diff:
                 m_tree.add(f"[{self.TABLE_DIFF_SOURCE_BLUE}]{m}[/{self.TABLE_DIFF_SOURCE_BLUE}]")