[Qgis-user] Very Slow Table Operations in QGIS 3.2.3

[Alessandro Pasotti]

On Tue, Oct 16, 2018 at 1:06 PM Antongeo76 <antoviscomi at gmail.com> wrote:

> Alessandro Pasotti-2 wrote
> > May be related to https://issues.qgis.org/issues/20094
> >
> > See also: https://github.com/qgis/QGIS/pull/8200
> >
> > On Tue, Oct 16, 2018 at 12:50 PM Antongeo76 <
>
> > antoviscomi@
>
> > > wrote:
> >
> >> Hi,
> >>
> >> This slowness is also present in QGIS 2.18 as well as in QGIS 3.2.3
> >> and also occurs with fewer features in shapefiles (15000-16000 are
> >> enough),
> >> slowness increases as the number of unsaved editing operations
> increases.
> >>
> >> With the "attribute table" opened, even "merge elements" or "split
> >> feature"
> >> operations,
> >> cause some problems (i.e. the counting of the records and the selection
> >> of
> >> the same does not seem synchronized with these editing operations)
> >> and sometimes this cause freeze of QGIS
> >>
> >>
> >>
> >>
> >>
> >> -----
> >> Antonio
> >> --
> >> Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html
> >> _______________________________________________
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> >>
>
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> >
> >
> > --
> > Alessandro Pasotti
> > w3:   www.itopen.it
> >
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>
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>
> Yes, it can be related but it does not happen only when the "field
> calculator" is used
> it happens even if you perform several 'manual' editing operations and save
> them after about an hour.
>
>
The bug I pointed to is not related to field calculator (the title is
misleading): field calculator just triggers it because it does a lot of
changes.



> It gives me the feeling that there is a buffer overflow
>

Buffer overflow would most probably lead to a crash, and this is not the
case.


-- 
Alessandro Pasotti
w3:   www.itopen.it
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