QSqlTableView does not respect ItemDelegate when used with QSqlTableModel

1. Have a QSqlTableView with some delegate that provides a sizeHint().
2. Add a QStandardItemModel
3. Edit items and resize colums/rows. Items will retain their size

4. change model to QSqlTableModel
5. edit items
6. after each edit, items will be resized to a size other than what user specified and other than what the itemDelegate specifies. More specifically, the row height will be reset to some default value, not the value required by the itemDelegate::sizeHint()

What should happen?

1. item delegate should provide the minimum size of a cell (height), at very least.
2. ideally, cell sizes should be retained even after items are changed.

#2 is not as simple to achieve as the QSqlTableModel seems to reload ALL records when item changes and sorting seems to be done in the DB. But #1 is the minimum that I would expect.