How to get contact names from CallLog.Calls list?

Question

Android

It is necessary to match the numbers from the calllog with the names from the book. I tried to pull it out along with the CallLog.Calls.CACHED_NAME number, but it randomly happens to be empty for a saved contact.
It turns out that for each number from the list of calls I need to pull ContactsContract.Contacts.DISPLAY_NAME?
Or, when loading the application, copy the notebook somewhere to your hashmap and quickly get it from there?