You probably know about two MariaDB great features: Dynamic Columns and Virtual Colums. I don’t think that we already found all possible use cases for them: more ideas will come in the future, and hopefully someone will write about them. Here, I will describe a use case which involves both Virtual Columns and Dynamic Columns.
Now, suppose that we have relational data in MariaDB, and we want to periodically export them in JSON, so we can export them to a variety of other data sources. For most data format, the best exporting solution is generally the CONNECT storage engine; but …[Read more]