diff --git a/ydb/core/tx/columnshard/engines/ut/helper.cpp b/ydb/core/tx/columnshard/engines/ut/helper.cpp
index eee9159edea7..f13c15ae36ed 100644
--- a/ydb/core/tx/columnshard/engines/ut/helper.cpp
+++ b/ydb/core/tx/columnshard/engines/ut/helper.cpp
@@ -1,10 +1,21 @@
 #include "helper.h"
+#include <ydb/core/formats/arrow/simple_arrays_cache.h>
 
 namespace  NKikimr::NOlap::NEngines::NTest {
 
 NKikimrTxColumnShard::TLogicalMetadata TLocalHelper::GetMetaProto() {
     NKikimrTxColumnShard::TLogicalMetadata result;
     result.SetDirtyWriteTimeSeconds(TInstant::Now().Seconds());
+
+    std::vector<std::shared_ptr<arrow::Array>> columns;
+    std::vector<std::shared_ptr<arrow::Field>> fields = { std::make_shared<arrow::Field>("1", arrow::uint64()) };
+    for (auto&& i : fields) {
+        columns.emplace_back(NArrow::TThreadSimpleArraysCache::Get(i->type(), NArrow::DefaultScalar(i->type()), 1));
+    }
+    auto batch = arrow::RecordBatch::Make(std::make_shared<arrow::Schema>(fields), 1, columns);
+
+    NArrow::TFirstLastSpecialKeys flKeys = NArrow::TFirstLastSpecialKeys(batch);
+    result.SetSpecialKeysRawData(flKeys.SerializeToString());
     return result;
 }