[Qgis-user] copy and paste very slow in qgis

[Michael.Dodd]

I am trying to copy points with their attributes from one layer to another (actually one geopackage file to another), the select is quick, couple of mins, bearing in mind there are 800,000 points but when pasting into the new empty geopackage file it is extremely slow. Less than 10% of the points need to be pasted but it was taking 40mins before I stopped it and I had no idea how much longer it would take. There was a hint that it may have done about 30,000 in 40mins.
Is there another way to do this, I have also tried switching the selection and deleting the other 90% but this too is very slow and don’t see the end.


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Dr Michael Dodd (iSpot Curator)

Faculty of Science Technology, Engineering and Mathematics (STEM),
The Open University, Walton Hall, Milton Keynes, MK7 6AA
+44 (0) 1908 652501 | Michael.Dodd at open.ac.uk<mailto:Michael.Dodd at open.ac.uk> | www.open.ac.uk<http://www.open.ac.uk/>

Research groups:
Citizen Science and AI: https://citsci.kmi.open.ac.uk/
Environment, Earth & Ecosystem Sciences: https://www.open.ac.uk/stem/environment-earth-ecosystem-sciences/research/ecosystems
Floodplain meadows partnership https://www.floodplainmeadows.org.uk/

Selected examples of public engagement / citizen science  / teaching activity / projects:
Article: iSpot’s 12 years old! Find out what we are doing to celebrate here: https://www.open.edu/openlearn/nature-environment/creative-climate/ispot-your-place-share-nature
Free Course: Citizen Science and Global Biodiversity: https://www.open.edu/openlearn/science-maths-technology/citizen-science-and-global-biodiversity/content-section-overview?active-tab=description-tab

Project Websites:
iSpot - your place to share nature: www.ispotnature.org<http://www.ispotnature.org/>
Treezilla – the Monster Map of trees: www.treezilla.org<http://www.treezilla.org/>

Cos4Cloud – Co-designed Citizen Observatories Services for the European Open Science Cloud): www.cos4cloud-eosc.eu/<http://www.cos4cloud-eosc.eu/>
DECIDE – Delivering Enhanced Biodiversity Information with Adaptive Citizen Science and Intelligent Digital Engagements: www.ceh.ac.uk/our-science/projects/decide<http://www.ceh.ac.uk/our-science/projects/decide>
X:Pollination – cross pollinating ideas, methods and technologies for pollinator citizen science: https://xpollination.org/about/

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