I am able to rename a view with more than 100 characters by following below steps:
* In Virtual DataPort Administration Tool, open VQL shell and execute the below command.
For Example: view name with 110 characters.(You can choose your desired character length)
`set 'com.denodo.vdb.catalog.Catalog.identifiersMaxLength' = '110'`
* Restart the Virtual DataPort Server.
* Now you will be able to rename the view up to 110 characters.
Hope this helps!