Extremely slower time to open attribute table in 2.18.7 compared to 2.14.14

[qgib]

Author Name: Giovanni Manghi (@gioman)
Original Redmine Issue: 16577
Affected QGIS version: 2.18.7
Redmine category:attribute_table

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This could be related to #24149 and/or #23674

I have tested a 758719 polygon features on 2.18.7 (no debug output) and to open the table it takes over 6 minutes!
The same table on 2.14.14 (no debug output) open in a few seconds.

Can provide the dataset.

Rendering time is very similar.

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Related issue(s): #23674 (relates), #24149 (relates)
Redmine related issue(s): 15752, 16239

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[qgib]

Author Name: Alessandro Pasotti (@elpaso)

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Is that a point release build or a particular commit?

[qgib]

Author Name: Jürgen Fischer (@jef-n)

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• description was changed from This could be related to

https://issues.qgis.org/issues/16239

and/or

https://issues.qgis.org/issues/15752

I have tested a 758719 polygon features on 2.18.7 (no debug output) and to open the table it takes over 6 minutes!
The same table on 2.14.14 (no debug output) open in a few seconds.

Can provide the dataset.

Rendering time is very similar.

to This could be related to #24149 and/or #23674

I have tested a 758719 polygon features on 2.18.7 (no debug output) and to open the table it takes over 6 minutes!
The same table on 2.14.14 (no debug output) open in a few seconds.

Can provide the dataset.

Rendering time is very similar.

[qgib]

Author Name: Jürgen Fischer (@jef-n)

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• relates was configured as master: (much) slower rendering (and attribute table opening) time compared to 2.18.4 #24149

[qgib]

Author Name: Jürgen Fischer (@jef-n)

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• relates was configured as Degradation of rendering performances in MSSQL provider #23674

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Alessandro Pasotti wrote:

Is that a point release build or a particular commit?

qgis 2.14.14 and 2.18.7 as installed by a normal user from osgeo4w under a clean Windows 7 environment.

Same observation on Ubuntu Linux from qgis repositories (the ones using also ubuntugis).

[qgib]

Author Name: Giovanni Manghi (@gioman)

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see also:

https://lists.osgeo.org/pipermail/qgis-psc/2017-May/005258.html

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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A bunch of fixes have been implemented in master and 2.18 which restore the performance to 2.14.0 levels

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• resolution was changed from to fixed/implemented
• status_id was changed from Open to Closed