Steps to reproduce:

zabbix-server 7.0.5 7.0.6 7.0.9

Result:

**

I made changes to the source code to see the entire value cache.
{}I also looked at how many results there are in the database for such items. It turns out that the entire available history is loaded into the cache{*}
log_valuecache
zabbix_items.csv{*}

Expected:
See screenshot....
See attached patch file...