From 0010f732ce7793f21f0e9f5200156ddf83f60fa2 Mon Sep 17 00:00:00 2001
From: Ivan Lykov <becalm@ydb.tech>
Date: Fri, 12 Sep 2025 16:35:16 +0000
Subject: [PATCH] specific option to not lose keys

---
 ydb/core/kqp/tools/combiner_perf/construct_join_graph.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ydb/core/kqp/tools/combiner_perf/construct_join_graph.cpp b/ydb/core/kqp/tools/combiner_perf/construct_join_graph.cpp
index 34141e3250bc..f5a3dd6c1999 100644
--- a/ydb/core/kqp/tools/combiner_perf/construct_join_graph.cpp
+++ b/ydb/core/kqp/tools/combiner_perf/construct_join_graph.cpp
@@ -129,7 +129,7 @@ THolder<IComputationGraph> ConstructInnerJoinGraphStream(ETestedJoinAlgo algo, T
                    "composite key types are not supported yet for ScalarMapJoin "
                    "benchmark");
         TRuntimeNode rightDict = pb.ToSortedDict(
-            args.Right, false, [&](TRuntimeNode tuple) { return pb.Nth(tuple, descr.RightSource.KeyColumnIndexes[0]); },
+            args.Right, true, [&](TRuntimeNode tuple) { return pb.Nth(tuple, descr.RightSource.KeyColumnIndexes[0]); },
             [&](TRuntimeNode tuple) {
                 auto types = AS_TYPE(TTupleType, tuple.GetStaticType())->GetElements();
                 TVector<TRuntimeNode> valueTupleElements;