Hello,
Everyday a new file of the same name gets sent to my storage account with old and new data appended at the end. Columns may also be added during one of these file updates. This file does a complete overwrite of the previous file. Is it possible to configure autoloader so that it does a full scan of the changes and updates the delta table only where changes exist?
Below is an example of the file updates I am referring to
Day 1 file: A
Day 2 file: AB
Day 3 file: A'BC
*each letter represents new data and
**a letter followed by an apostrophe is altered data