[Qgis-user] QGIS big fail in deleting Shapes!!

[Matthias Kuhn]

On 01/20/2016 11:14 AM, Jürgen E. Fischer wrote:
> Hi Andreas,
>
> On Wed, 20. Jan 2016 at 09:04:52 +0100, Neumann, Andreas wrote:
>> I also remember that Marco Hugentobler (Sourcepole) was contracted to
>> fix these Shapefile issues for the province of Vorarlberg - though I may
>> be wrong. So there is already someone investing to fix this bug. Marco -
>> correct me if I am wrong. 
> Yes, please.  I thought this was a fact - and didn't look at all into
> the problem.
>
> Not sure if QGIS always does a REPACK (it used to after each delete - but that
> changes feature ids and interferes with internal stuff).  I'm also not sure
> that GDAL 2 fixes the problem - the comments to the ticket are not conclusive
> in that regard (GRASS is probably not a good test as it also uses GDAL and
> hence also should follow it's interpretation of what's deleted; see also
> https://lists.osgeo.org/pipermail/gdal-dev/2016-January/043483.html).

This behavior is restored since 2.10 (internally there's a
`dataChanged()` signal sent around to notify interested parties that all
feature id caches need to be cleared).

GDAL 2.0 should fix an issue with repack and changed geometries IIRC.

Matthias

>
>
> Jürgen
>
>
> PS: @Saber may your GDAL 2.0.0dev come from experiments with this?  OSGeo4W has
> 1.11.3 (or 2.0.0 as experimental - which QGIS doesn't use - but no *dev).
>
>
>
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-- 
Matthias Kuhn
OPENGIS.ch - https://www.opengis.ch
Spatial • (Q)GIS • PostGIS • Open Source

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