This graphic depicts the before and after of a partition exchange. The first box shows six partitions of the sales table populated in the IM column store. The box is labeled “Before sales_tmp_ld is populated.” The second box shows the same six partitions, with the object sales_tmp_id below and to the left of the bottom partition. The box is labeled “After sales_tmp_ld is populated.” The third box shows seven partitions. The box is labeled “After the partition exchange.”