For instance, the purchaseOrders table is partitioned by po_date and has a local index on po_customer, the query below will need a sort after the index scan.

例如，表purchaseorders通过po_date进行了分区，并具有本地索引po_customer，以下查询在完成索引扫描后还需要进行排序。

youdao

For instance, the purchaseOrders table is partitioned by po_date and has a local index on po_customer, the query below will need a sort after the index scan.

例如，表purchaseorders通过po_date进行了分区，并具有本地索引po_customer，以下查询在完成索引扫描后还需要进行排序。

youdao