Clarification of Created and Updated At Columns section of the readme

[daniel-nelson]

I'm confused by the "Created and Updated At Columns" section of the readme. It states "Although you can use created_at and updated_at methods, you may still want the columns in SimpleDB to be created_at and updated_at.", which to me says that we could go ahead and set the columns to created_at and updated_at. But the example following this statement sets them to "created" and "updated", not "created_at" or "updated_at". The first part of the subsequent "note" seems to recommend setting the columns to "created_at" and "updated_at", but the example given in the note again uses "created" and "updated".

Is it okay to use created_at and updated_at so that we can use these in our queries just as we do in regular active_record queries?