copy_table

# File activerecord/lib/active_record/connection_adapters/sqlite_adapter.rb, line 492
        def copy_table(from, to, options = {}) #:nodoc:
          from_primary_key = primary_key(from)
          options[:primary_key] = from_primary_key if from_primary_key != 'id'
          unless options[:primary_key]
            options[:id] = !columns(from).detect{|c| c.name == 'id'}.nil? && 'id' == from_primary_key
          end
          create_table(to, options) do |definition|
            @definition = definition
            columns(from).each do |column|
              column_name = options[:rename] ?
                (options[:rename][column.name] ||
                 options[:rename][column.name.to_sym] ||
                 column.name) : column.name

              @definition.column(column_name, column.type,
                :limit => column.limit, :default => column.default,
                :precision => column.precision, :scale => column.scale,
                :null => column.null)
            end
            @definition.primary_key(from_primary_key) if from_primary_key
            yield @definition if block_given?
          end

          copy_table_indexes(from, to, options[:rename] || {})
          copy_table_contents(from, to,
            @definition.columns.map {|column| column.name},
            options[:rename] || {})
        end