update

Author: BiteTheDDDDt

be/test/exec/runtime_filter/vruntimefilter_wrapper_sampling_test.cpp

@@ -154,15 +154,16 @@ TEST_F(VRuntimeFilterWrapperSamplingTest, sampling_frequency_survives_context_re
             wrapper->open(_runtime_states[0].get(), context1.get(), FunctionContext::FRAGMENT_LOCAL)
                     .ok());
 
-    // Simulate context recreation (what _append_rf_into_conjuncts does):
-    // Create a brand new VExprContext with the same VRuntimeFilterWrapper.
-    // The new context starts with default sampling_frequency = -1.
+    // Create a brand new non-clone VExprContext with the same
+    // VRuntimeFilterWrapper. The new context starts with default
+    // sampling_frequency = -1.
     auto context2 = std::make_shared<VExprContext>(wrapper);
     EXPECT_FALSE(context2->get_runtime_filter_selectivity().maybe_always_true_can_ignore());
 
-    // After open() on the new context, sampling_frequency should be propagated
+    // Open the recreated context with FRAGMENT_LOCAL to match the real
+    // _append_rf_into_conjuncts path for a freshly created VExprContext.
     ASSERT_TRUE(
-            wrapper->open(_runtime_states[0].get(), context2.get(), FunctionContext::THREAD_LOCAL)
+            wrapper->open(_runtime_states[0].get(), context2.get(), FunctionContext::FRAGMENT_LOCAL)
                     .ok());
     // Prepare/open the recreated context through VExprContext so the test matches
     // the production lifecycle and context-managed initialization.