TechPlanetScaleover 2 years ago
The challenges of supporting foreign key constraints
37 min read
PlanetScale now supports foreign key constraints after a year of development. The feature required overcoming challenges across MySQL limitations, Online DDL, branching, and schema analysis. The company initially avoided the feature because it conflicted with branching and Online DDL.
Level
Hype check
Tap to vote and see what everyone thinks.