Transaction GetOrdersByUser
Authentication mode: Checked (known user, must have the privilege)
Database access mode: reading
returns all orders created by the a specified user
Inputs:
- oldest: int64
unix timestamp for the oldest order to be returned (compared with ordertime)
- includeall: bool
if true: include all orders that the user ever touched
- username: astring
the name of the user to look for
Outputs: