[QGIS-Developer] QGIS 2.18.x Attribute Table Performance

Fri May 26 01:59:50 PDT 2017

Hi, know issue,

already lengthly analyzed and already fixed, just wait for the next
builds (2.18.9).

cheers

-- G --

>
> Hi,
>
> I'm facing a HIGHLY DEGRADED performance with attribute table opening with
> version 2.18.x (2.18.8 and 2.18.7) when we have more than 100K rows. (in
> this case 161K)
>
> I'm looking at an OLD application done 5 years back with a custom QGIS 1.7,
> PostgreSQL 9.0 and PostGIS.
>
> The performance at that time was high commendable and it worked very well.
> See the video here;
> https://www.youtube.com/watch?v=3rjeqgFK5GA
> (this video was taken on a Virtual Machine)
>
> Recently we stepped into upgrade the technology stack and to my surprise,
> the current version of QGIS 2.18.8 is way TOO slow and this goes all
> against the QGIS in the Government environment.
>
> While keeping the DB on the VM environment, we tested it on different
> platform and version;
>
> QGIS 2.18.8 (latest) ruining on Windows 10 environment
> https://www.youtube.com/watch?v=k19tEqSK-1Y&t=64s
> Took nearly 2 minutes to open !!!
>
> QGIS 2.18.7 ruining on MacOS environment
> https://www.youtube.com/watch?v=S1eg2K17Z1E&t=15s
> Again took more than 2 minutes to open !!!
>
> QGIS 2.14.14 (LTR) ruining on MacOS environment
> https://www.youtube.com/watch?v=Sv-qklLFCHA
> Took only 5 seconds to open :)
>
>
> So, it appears that something has gone SERIOUSLY WRONG between the version
> 2.14.x and 2.18.x
>
> Since 2.18.x is marked as LTR version, I really hope this issue is fixed
> since most of the government environments adopt only the LTR version and
> with such performance it goes against QGIS.
>
> The next LTR is 3.2 which is more than a year later. Can you please look
> into this issue?
>
> Thanks and Cheers !
>
>
> Ted
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20170526/b41efc13/attachment-0001.html>
>
> ------------------------------
>
> Message: 5
> Date: Fri, 26 May 2017 10:21:41 +0800
> From: Ganeshkumar Shanmugam <ganesh at geoicon.com>
> To: C Hamilton <adenaculture at gmail.com>
> Cc: qgis-developer <qgis-developer at lists.osgeo.org>, qgis-user
>         <qgis-user at lists.osgeo.org>
> Subject: Re: [QGIS-Developer] A Couple of Plugin Ideas
> Message-ID:
>         <CAAcg4Xwm1C+HO_iv3Yj3apBA8sMQnfF53ckckSYZEXVcN8PVyw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> hi
>
>
> Geospatial Animator
>> What I am thinking of is a plugin where you can define a series key
>> locations keeping track of the (X,Y) coordinate and zoom level.
>> Additionally there would be a step size and it would output either
>> rendered frames or a video.
>>
>>
> Have you looked at this plugin? some similarity...
>
> https://anitagraser.com/projects/time-manager/
>
>
> Ganesh
>
>
>
>
> On Fri, May 26, 2017 at 3:53 AM, C Hamilton <adenaculture at gmail.com> wrote:
>
>> I have been toying with writing a couple of QGIS plugins and wanted to
>> check to see if anyone else is doing something similar and to see if there
>> is interest.
>>
>>
>> 1. Geospatial Animator
>> What I am thinking of is a plugin where you can define a series key
>> locations keeping track of the (X,Y) coordinate and zoom level.
>> Additionally there would be a step size and it would output either rendered
>> frames or a video.
>>
>> 2. Another Measure Tool
>> As a preface I was looking at some old archaeological records and it was
>> giving site locations based off of the previous location with a distance
>> and bearing. As far as I can tell there is no tools that interactively
>> gives both of these values.
>>
>> I would like a measure tool that provides the distance between points A &
>> B, the bearing from point A to B, and the bearing from point B to A.
>>
>> I would appreciate any thoughts you have or whether someone is already
>> working on this.
>>
>> Thanks,
>>
>> Calvin
>>
>> _______________________________________________
>> QGIS-Developer mailing list
>> QGIS-Developer at lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
>>
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20170526/900fd128/attachment-0001.html>
>
> ------------------------------
>
> Message: 6
> Date: Fri, 26 May 2017 06:37:33 -0000
> From: noreply at qgis.org
> To: mboos at hsr.ch, qgis-developer at lists.osgeo.org
> Subject: [QGIS-Developer] Plugin [1230] Vector Tiles Reader approval
>         notification.
> Message-ID: <20170526063733.21141.4096 at 320558c5528b>
> Content-Type: text/plain; charset="utf-8"
>
>
> Plugin Vector Tiles Reader approval by pcav.
> The plugin version "[1230] Vector Tiles Reader 0.11.0 Experimental" is now approved
> Link: http://plugins.qgis.org/plugins/vector_tiles_reader/
>
>
> ------------------------------
>
> Message: 7
> Date: Fri, 26 May 2017 10:00:03 +0200
> From: Carlos López PSIG <carlos.lopez at psig.es>
> To: List QGIS developer <qgis-developer at lists.osgeo.org>
> Subject: [QGIS-Developer] Error: Select by expression not show fileds
> Message-ID:
>         <CAGvsbY5JfL8vMY8xJLF2a=5ChhicGgVLB0ryft30nKcNi7D_Yg at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi,
> I found a possible bug. I'm using 2.18.8.
>
> I can't see the fields in "Select by Expression"
> Field and values " is empty for all layers (I tested shapefiles, gml and
> geojson).
>
> I tested in Linux Mint 17 and Windows 7 and 10
>
> Is this a known bug?
>
> Regards,
>
>
> * <http://psig.es>*
> *PSIG*
> Implementació, gestió i formació SIG
>
> *Carlos López Quintanilla*
>
> www.psig.es
> carlos.lopez at psig.es
> +34 699.680.261
>
> Nota legal: Este mensaje y cualquier archivo adjunto está destinado
> únicamente a la
> persona a quien se dirige y es confidencial. Si usted ha recibido este
> mensaje por
> error, por favor, comuníqueselo al remitente y bórrelo inmediatamente. La
> utilización ,
> revelación y/o reproducción del mensaje puede constituir un delito.
>
> Protección de Datos: Le informamos que sus datos de contacto electrónico se
> hallan
> incorporados a un fichero titularidad de CARLOS LÓPEZ QUINTANILLA, al
> objeto de
> envío de información, respuesta a consultas y contactos genéricos.
> Puede ejercer los derechos de acceso, rectificación, cancelación y
> oposición que
> establece la LOPD en cualquier momento, mediante escrito, acompañado de
> copia de
> documento oficial que le identifique, dirigido a CARLOS LÓPEZ QUINTANILLA
> CL. P
> arellada, 8 E2 de Corbera de Llobregat, 08757-Barcelona.
>
> También podrá oponerse a nuestros envíos de comunicaciones comerciales
> (Art.21.2
> de la LSSI) a través de la siguiente dirección de correo electrónico:
> admin at psig.es
> -------------- next part --------------
> An HTML attachment was scrubbed...
> URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20170526/869d6529/attachment.html>
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> QGIS-Developer mailing list
> QGIS-Developer at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
>
> ------------------------------
>
> End of QGIS-Developer Digest, Vol 139, Issue 70
> ***********************************************