Fixed unit test

Author: GrigoriyPA

ydb/core/kqp/ut/federated_query/common/common.cpp

@@ -110,10 +110,11 @@ namespace NKikimr::NKqp::NFederatedQueryTest {
             nullptr,
             driver);
 
+        const auto& kqpSettings = appConfig->GetKQPConfig().GetSettings();
         settings
             .SetFeatureFlags(featureFlags)
             .SetFederatedQuerySetupFactory(federatedQuerySetupFactory)
-            .SetKqpSettings({})
+            .SetKqpSettings({kqpSettings.begin(), kqpSettings.end()})
             .SetS3ActorsFactory(std::move(s3ActorsFactory))
             .SetWithSampleTables(false)
             .SetDomainRoot(options.DomainRoot)

ydb/core/kqp/ut/federated_query/datastreams/datastreams_ut.cpp

@@ -1487,6 +1487,11 @@ Y_UNIT_TEST_SUITE(KqpStreamingQueriesDdl) {
     }
 
     Y_UNIT_TEST_F(StreamingQueryWithS3Join, TStreamingTestFixture) {
+        // Test that defaults are overridden for streaming queries
+        auto& setting = *SetupAppConfig().MutableKQPConfig()->AddSettings();
+        setting.SetName("HashJoinMode");
+        setting.SetValue("grace");
+
         const auto pqGateway = SetupMockPqGateway();
 
         constexpr char sourceBucket[] = "test_streaming_query_with_s3_join";