Upgraded server to 7.2.0, but "Database history tables use primary key" = No

[DmitryDonskikh]

Hello.
I've upgraded my server from 7.0.6 to 7.2.0, it works OK (PostgreSQL 13), but then I've found in System information:
Database history tables use primary key No
I'm afraid it wasn't done earlier, when upgrading 5 to 6 or 6 to 7...

Is there a way to add primary keys to current 7.2 database? To which tables?
Docs mention 'history_upgrade_prepare.sql' script, but I do not have it within my installation.
Or at least give me a hint where can I find relevant installation sql scripts, to compare/recreate database structure manually.

[cyber]

https://cdn.zabbix.com/zabbix/sources/stable/7.2/zabbix-7.2.0.tar.gz

unpack it and you can find that script at ./zabbix-7.2.0/database/postgresql/option-patches/history_upgrade_prepare.sql '
it just renames your existing tables and recreates new ones, so you could do what that upgrade page says, selecting from old table and inster to new one...