When try to select all the rows of QSqlTableModel with mouse press and drag while holding ctrl key pressed, only alternate rows gets selected.

How to reproduce:

Run Qt Demo's Sql Browser example:
connect it with db to have some data in table view.

select entire first row by clicking on the first row.
hold ctrl key pressed
now click on vertical header with label "1"
now press Left mouse button and drag down the mouse.

See the effect all rows are not selected only alternate rows are slelected.

This can be reproduce with qt4.4