diff --git a/src/Interpreters/TableJoin.cpp b/src/Interpreters/TableJoin.cpp
index 6622ea2dcd6..2d3bffa8234 100644
--- a/src/Interpreters/TableJoin.cpp
+++ b/src/Interpreters/TableJoin.cpp
@@ -230,16 +230,8 @@ void TableJoin::addJoinedColumn(const NameAndTypePair & joined_column)
 void TableJoin::addJoinedColumnsAndCorrectNullability(ColumnsWithTypeAndName & columns) const
 {
     for (auto & col : columns)
-    {
-        /// Materialize column.
-        /// Column is not empty if it is constant, but after Join all constants will be materialized.
-        /// So, we need remove constants from header.
-        // if (col.column)
-        //     col.column = nullptr;
-
         if (leftBecomeNullable(col.type))
             col.type = makeNullable(col.type);
-    }
 
     for (const auto & col : columns_added_by_join)
     {