Use when storing sparse or heterogeneous attributes inside a single column, comparing dynamic columns with JSON, migrating legacy MariaDB schemas that use dynamic columns, or porting data in or out of MariaDB. Prevents the common mistake of using dynamic columns where JSON would be simpler, the assu
Use when storing sparse or heterogeneous attributes inside a single column, comparing dynamic columns with JSON, migrating legacy MariaDB schemas that use dynamic columns, or porting data in or out of MariaDB. Prevents the common mistake of using dynamic columns where JSON would be simpler, the assumption that the feature is portable to MySQL (it is MariaDB-only), and the silent NULL return on a t