The #substitute_at gets an ActiveRecord::ConnectionAdapters::Column in #insert...

The #substitute_at gets an ActiveRecord::ConnectionAdapters::Column in #insert to match replacement in #exec_query.

activerecord/lib/active_record/relation.rb

@@ -56,7 +56,7 @@ def insert(values)
       end
 
       substitutes.each_with_index do |tuple, i|
-        tuple[1] = conn.substitute_at(tuple.first, i)
+        tuple[1] = conn.substitute_at(binds[i][0], i)
       end
 
       if values.empty? # empty insert