the TUniMetaData data-type field now returns different data for different databases - Example:
currently for MySql it returns a string e.g. 'float'
but for MS SQL server it returns a number: e.g. 5 (for float fields)

so the recommended improvement is to add a new field to the result that returns a string representing the native database type.

this feature is useful if you want to show a list of columns including data-types to the user - it can also be used to generate a create script, etc.