Ability to create filtered indexes

Both SQL Server and Postgres allow indexes to be filtered by a condition.

Same behavior can be emulated in MySQL as described here: https://stackoverflow.com/questions/7804565/workaround-in-mysql-for-partial-index-or-filtered-index

I consider this to be an important addition, have had many use cases where a backend check needed to be applied instead of relying on DB checks, which are prone to user error and take longer to execute. DBDiagram has proven to be quite a useful tool and I’d be glad if they could support this feature as well.