What happens if you disable copy protection [Android Market]

Question

Android

When publishing an application in the Android market, there is an option - copy protection [on / off], which, judging by the description, should prevent the user from pulling the application apk file from the phone.
Naturally, when publishing, I included it (and why not, let it protect). But it turned out that because of this option, some phones do not detect my application in the market. That's why I want to disable this option.
Question: Will the data of my application be erased from users (SQLite), because the location of the database will be replaced. Who tried, advise please. I don’t want to do trickery to users, but also to lose some potential buyers too.

Answer 1

Also interested in this question. Did the author manage to find an answer to it?