[Koha] Data migration: importing of anonymous checkout history

[Сычев Игорь Алексеевич]

Hello!

I have a checkout history over the past years. But some of the patrons have already been deleted.
What do I need to do to import anonymizing the checkout history?
In other words, if there is a user, then the story is personalized, if there is no user, then the story is impersonal.

Good Luck!

Igor A. Sychev
Tomsk Polytechnic University
https://lib.tpu.ru