Queries and exports of data need to support access to the Salesforce archives. Some Salesforce objects have a "recency" component to their data and archive records older than X days. It would be useful to be able to access all the records in large objects ex: Tasks with an Export All (or similar) function.
https://help.salesforce.com/articleView?id=000325075&language=en_US&type=1&mode=1