automatically fetch column names from ActiveRecord::Base.connection.columns(@table_name).  Also auto-generate #base_copy_query and #on_duplicate_update_map based on the suggested defaults.
automatically fetch column names from ActiveRecord::Base.connection.columns(@table_name).  Also auto-generate #base_copy_query and #on_duplicate_update_map based on the suggested defaults.
freels/table_migrator,vitalsource/table_migrator