> And if you're dealing with what would be an overly-large amount of repeated values, you just run multiple queries yourself instead of one.

It is a bit annoying to do this though. It would be nice if it was done for me automatically be some db driver.

> And if round-trip latency is some kind of issue with running queries sequentially, you can always issue queries in parallel instead.

Some languages or frameworks don’t provide great parallel ization features though.

I guess at the end of the day if it’s an extension to SQL that you can optionally use, then I would have some situations where I would use it.