Bingo! Saved me a ton of typing. I've been working with databases since 1975, can't say I've missed many since especially when I like to collect and learn about the new types. Given that Hive is explicitly scale-out by design, the only thing that'd be holding them back from such queries would be a lack of infrastructure. Well, guess what Facebook, you need to buy some more to meet the letter of the GDPR. I almost have sympathy for them. Almost.
Filing this one away for when/if we get the new law here in California up and running. I'm not exactly expecting that to happen without a fight.