MySQL (really) supports CHECK CONSTRAINT since version 8.0.16. In this article I will show you 2 things: - An elegant way to simulate check constraint in MySQL 5.7 & 8.0. - How easy & convenient it is to use CHECK constraints in 8.0.16.
MySQL 5.7 is GA and has over than 150 new features. One of them is a Native JSON Data Type and JSON Functions: "Allows for efficient and flexible storage, search and manipulation of schema-less data. Enhancements include a new internal binary format, support for easy integration within SQL, and index management on the JSON Documents using generated columns".