diff --git a/dbms/src/Columns/ColumnVector.h b/dbms/src/Columns/ColumnVector.h
index a90f1bdb6e8..a157a184974 100644
--- a/dbms/src/Columns/ColumnVector.h
+++ b/dbms/src/Columns/ColumnVector.h
@@ -212,21 +212,23 @@ public:
     Float64 getFloat64(size_t n) const override;
     Float32 getFloat32(size_t n) const override;
 
-    UInt64 getUInt(size_t n) const override
+    /// Out of range conversion is permitted.
+    UInt64 NO_SANITIZE_UNDEFINED getUInt(size_t n) const override
     {
         return UInt64(data[n]);
     }
 
+    /// Out of range conversion is permitted.
+    Int64 NO_SANITIZE_UNDEFINED getInt(size_t n) const override
+    {
+        return Int64(data[n]);
+    }
+
     bool getBool(size_t n) const override
     {
         return bool(data[n]);
     }
 
-    Int64 getInt(size_t n) const override
-    {
-        return Int64(data[n]);
-    }
-
     void insert(const Field & x) override
     {
         data.push_back(DB::get<NearestFieldType<T>>(x));