[hbrn]

To be fair, I skimmed through your docs and did misread them initially: I thought you don't allow foreign keys, but you actually don't allow foreign key constraints.

If you are still allowing JOINs within a shard, then I need to apologize.

[derekperkins]

And Vitess supports shard local foreign key constraints, even if Planetscale disallows them. They don't work with all the cool online ddl tech.

[samlambert]

We do allow joins within shard.