I noticed a message in
Promotions -> Catalog Price Rules:
"There are rules that have been changed but were not applied. Please, click Apply Rules in order to see immediate effect in the catalog."
But I couldn't see any rule at all. Not in backend, not in database. All these tables were empty:
catalogrule catalogrule_affected_product catalogrule_customer_group catalogrule_group_website catalogrule_product catalogrule_product_price catalogrule_website
I cleared cache and ran a full reindex but the message still showed up. Only hitting the "Apply" button made the message disappear. Now I'm wondering where Magento pulls this information (that rules still need to get applied) if it does not pulling it from catalogrule* table. Do anyone know ?