Python: Search() keeps a falsy value instead of treating it as Blank

python/packages/declarative/agent_framework_declarative/_workflows/_powerfx_functions.py

@@ -455,7 +455,9 @@ def search_table(table: Any, value: Any, column: str) -> list[Any]:
         return []
 
     results: list[Any] = []
-    search_value = str(value).lower() if value else ""
+    # Only Blank (None) and "" mean "no search value, return every row"; a
+    # falsy 0 or False is still the value the caller asked to match.
+    search_value = str(value).lower() if value is not None else ""
 
     for item in cast(list[Any], table):
         item_value: Any = None

python/packages/declarative/tests/test_powerfx_functions.py

@@ -680,3 +680,15 @@ def test_search_table_empty_value(self):
         result = search_table(items, "", "name")
         # Empty string matches everything
         assert len(result) == 2
+
+    def test_search_table_zero_is_a_value_not_a_blank(self):
+        """Test search_table with a numeric zero."""
+        items = [{"code": 0}, {"code": 10}, {"code": 2}]
+        assert [item["code"] for item in search_table(items, 0, "code")] == [0, 10]
+        # Blank still means "match everything".
+        assert [item["code"] for item in search_table(items, None, "code")] == [0, 10, 2]
+
+    def test_search_table_false_is_a_value_not_a_blank(self):
+        """Test search_table with a boolean False."""
+        items = [{"ok": True, "label": "yes"}, {"ok": False, "label": "no"}]
+        assert [item["label"] for item in search_table(items, False, "ok")] == ["no"]