QGIS » QGIS Application

The PostgreSQL provider is broken under Qt5 builds- it is impossible to select a single feature and the attribute table shows all repeating features.

I've tracked this down to QgsPostgresSharedData::lookupFid. Basically, what is happening is that the QMap<QVariant, QgsFeatureId> lookup does not work under Qt5, and in the block:

QMap<QVariant, QgsFeatureId>::const_iterator it = mKeyToFid.constFind( v );

if ( it != mKeyToFid.constEnd() ) {
return it.value();
}

it will never be constEnd, even when the key is NOT present in the map, it will instead just return the first item in the map. I believe this is due to a broken < operator for QVariant of list types under qt5.

Marking this as a blocker, but not for 2.16