QGIS crashes with aggregate virtual column and linked tables

[immoblecher]

What is the bug or the crash?

User Feedback

I have a parent table with a virtual column that calculates the number of "kandidates" that belong to the same id, which is one of the columns: count( "kandidat_id" , group_by:= "sk_id")

Then I have a join with another table in a one-to-one relationship, which allows editing of the child table values. It seems, that when the child table has values in some or all of the columns I can edit values in the parent table and can accept these e.g. in the Identify form with . But if I have no values in the child table, w.o.w. the record would be created as soon as I add a value in one of the fields (cascade on), QGIS crashes on . But this is not cast in stone and occurs randomly. If I remove the virtual column all works as expected. I use a drag-and-drop form to edit the data.

The layers are loaded over ArcGIS REST, but I have also tried with direct PostGIS layers...same result.

Report Details

Python Stack Trace

Windows fatal exception: access violation

Current thread 0x0000362c (most recent call first):
<no Python frame>

Stack Trace

QgsBasicNumericFormat::showThousandsSeparator :
QgsVectorLayer::getFeatures :
QgsVectorLayerJoinBuffer::joinedFeatureOf :
QgsVectorLayerJoinBuffer::changeAttributeValue :
QgsVectorLayerJoinBuffer::changeAttributeValues :
QgsVectorLayer::changeAttributeValues :
QgsAttributeForm::saveEdits :
QgsAttributeForm::saveWithDetails :
QgsAttributeDialog::accept :
QObject::qt_static_metacall :
QDialogButtonBox::qt_static_metacall :
QObject::qt_static_metacall :
QAbstractButton::clicked :
QAbstractButton::click :
QAbstractButton::mouseReleaseEvent :
QWidget::event :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QApplicationPrivate::sendMouseEvent :
QSizePolicy::QSizePolicy :
QSizePolicy::QSizePolicy :
QApplicationPrivate::notify_helper :
QApplication::notify :
QgsApplication::notify :
QCoreApplication::notifyInternal2 :
QGuiApplicationPrivate::processMouseEvent :
QWindowSystemInterface::sendWindowSystemEvents :
QEventDispatcherWin32::processEvents :
qt_plugin_query_metadata :
QEventLoop::exec :
QCoreApplication::exec :
main :
BaseThreadInitThunk :
RtlUserThreadStart :

QGIS Info
QGIS Version: 3.28.10-Firenze
QGIS code revision: e2edb9c
Compiled against Qt: 5.15.3
Running against Qt: 5.15.3
Compiled against GDAL: 3.7.1
Running against GDAL: 3.7.1

System Info
CPU Type: x86_64
Kernel Type: winnt
Kernel Version: 10.0.19045

Steps to reproduce the issue

Versions

QGIS-Version	3.28.10-Firenze	QGIS-Codeversion	e2edb9c
Qt-Version	5.15.3
Python-Version	3.9.5
GDAL-Version	3.7.1
PROJ-Version	9.2.1
EPSG-Registraturdatenbankversion	v10.088 (2023-05-13)
GEOS-Version	3.12.0-CAPI-1.18.0
SQLite-Version	3.41.1
PDAL-Version	2.5.5
PostgreSQL-Client-Version	unknown
SpatiaLite-Version	5.1.0
QWT-Version	6.1.6
QScintilla2-Version	2.13.1
BS-Version	Windows 10 Version 2009
Aktive Python-Erweiterungen
AppendFeaturesToLayer	1.5.0
nominatim	1.4.5
quick_map_services	0.19.33
SpreadsheetLayers	2.1.0
db_manager	0.1.20
processing	2.12.99

QGIS-Version 3.28.10-Firenze QGIS-Codeversion [e2edb9c](https://github.com/qgis/QGIS/commit/e2edb9c468) Qt-Version 5.15.3 Python-Version 3.9.5 GDAL-Version 3.7.1 PROJ-Version 9.2.1 EPSG-Registraturdatenbankversion v10.088 (2023-05-13) GEOS-Version 3.12.0-CAPI-1.18.0 SQLite-Version 3.41.1 PDAL-Version 2.5.5 PostgreSQL-Client-Version unknown SpatiaLite-Version 5.1.0 QWT-Version 6.1.6 QScintilla2-Version 2.13.1 BS-Version Windows 10 Version 2009

Aktive Python-Erweiterungen
AppendFeaturesToLayer
1.5.0
nominatim
1.4.5
quick_map_services
0.19.33
SpreadsheetLayers
2.1.0
db_manager
0.1.20
processing
2.12.99

Supported QGIS version

• I'm running a supported QGIS version according to the roadmap.

New profile

• I tried with a new QGIS profile

Additional context

Also tried on 3.32 Lima...same problem

[agiudiceandrea]

@immoblecher, thanks for reporting. Could you please actually try if the issue does occur also using a new QGIS user profile without any external plugin installed?

[github-actions]

The QGIS project highly values your report and would love to see it addressed. However, this issue has been left in feedback mode for the last 14 days and is being automatically marked as "stale".
If you would like to continue with this issue, please provide any missing information or answer any open questions. If you could resolve the issue yourself meanwhile, please leave a note for future readers with the same problem and close the issue.
In case you should have any uncertainty, please leave a comment and we will be happy to help you proceed with this issue.
If there is no further activity on this issue, it will be closed in a week.

[github-actions]

While we hate to see this happen, this issue has been automatically closed because it has not had any activity in the last 42 days despite being marked as feedback. If this issue should be reconsidered, please follow the guidelines in the previous comment and reopen this issue.
Or, if you have any further questions, there are also further support channels that can help you.

[agiudiceandrea]

@immoblecher, could you please actually try if the issue does occur also using a new QGIS user profile without any external plugin installed?

[github-actions]

The QGIS project highly values your report and would love to see it addressed. However, this issue has been left in feedback mode for the last 14 days and is being automatically marked as "stale".
If you would like to continue with this issue, please provide any missing information or answer any open questions. If you could resolve the issue yourself meanwhile, please leave a note for future readers with the same problem and close the issue.
In case you should have any uncertainty, please leave a comment and we will be happy to help you proceed with this issue.
If there is no further activity on this issue, it will be closed in a week.