A QCompleter with a popup does not display the items in the view properly if the view's headers are visible.

#include <QtGui> 
#include <QtSql> 

int main( int argc, char* argv[] ) 
{ 
 QApplication app( argc, argv ); 

 QTableView* view = new QTableView(); 

 QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE"); 
 db.setDatabaseName(":memory:"); 
 db.open(); 
 QSqlQuery query; 
 query.exec( "CREATE TABLE test (id INTEGER PRIMARY KEY AUTOINCREMENT, " 
   "number INTEGER, description VARCHAR(300))" ); 
 query.exec( "INSERT INTO test VALUES(1, 10, 'First')" ); 
 query.exec( "INSERT INTO test VALUES(2, 15, 'Second')" ); 
 query.exec( "INSERT INTO test VALUES(3, 20, 'Third')" ); 
 query.exec( "INSERT INTO test VALUES(4, 40, 'Forth')" ); 

 QSqlTableModel *model = new QSqlTableModel(); 
 model->setTable("test"); 
 model->select(); 
 view->setModel( model ); 

 QLineEdit *lineEdit = new QLineEdit();
 QCompleter *completer = new QCompleter(model);
 completer->setCompletionMode(QCompleter::PopupCompletion);
 completer->setPopup(view);
 lineEdit->setCompleter(completer);
 lineEdit->show();

 app.exec(); 
}