diff --git a/dbms/src/Columns/ColumnVector.cpp b/dbms/src/Columns/ColumnVector.cpp
index 1e275f4ec13..99f9d1b91e4 100644
--- a/dbms/src/Columns/ColumnVector.cpp
+++ b/dbms/src/Columns/ColumnVector.cpp
@@ -346,18 +346,14 @@ ColumnPtr ColumnVector<T>::replicate(const IColumn::Offsets & offsets) const
     if (0 == size)
         return this->create();
 
-    auto res = this->create();
-    typename Self::Container & res_data = res->getData();
-    res_data.reserve(offsets.back());
+    auto res = this->create(offsets.back());
 
-    IColumn::Offset prev_offset = 0;
+    auto it = res->getData().begin();
     for (size_t i = 0; i < size; ++i)
     {
-        size_t size_to_replicate = offsets[i] - prev_offset;
-        prev_offset = offsets[i];
-
-        for (size_t j = 0; j < size_to_replicate; ++j)
-            res_data.push_back(data[i]);
+        const auto span_end = res->getData().begin() + offsets[i];
+        for (; it < span_end; ++it)
+            *it = data[i];
     }
 
     return res;