Has anyone used virtual columns with MySQL for a direct json-index substitute? http://mysqlserverteam.com/indexing-json-documents-via-virtual-columns/ http://m

Has anyone used virtual columns with MySQL for a direct json-index substitute? http://mysqlserverteam.com/indexing-json-documents-via-virtual-columns/ http://mysqlserverteam.com/indexing-json-documents-via-virtu...