在列表中数据项的数量会被冗余地存储在这，以便无需查询整个AllUserData数据表（所有的SharePoint列表项目都保存在这里）就可获得这个信息。

The number of items in the list is stored there redundantly in order to get this information without the need to query the entire AllUserData table where all SharePoint list items are stored.

youdao

在列表中数据项的数量会被冗余地存储在这，以便无需查询整个AllUserData数据表（所有的SharePoint列表项目都保存在这里）就可获得这个信息。

The number of items in the list is stored there redundantly in order to get this information without the need to query the entire AllUserData table where all SharePoint list items are stored.

youdao