Ticket #3828 (new enhancement)

Opened 2 years ago

dissolve tool very inefficient (with large datasets?)

Reported by: lutra Owned by: cfarmer
Priority: major: does not work as expected Milestone: Version 1.7.0
Component: Python plugins and bindings Version: Trunk
Keywords: Cc:
Platform Version: Platform: All
Must Fix for Release: No Awaiting user input: no

Description

Download the following shape (175MB)

 http://www.igeo.pt/gdr/Downloads/ProdutosCLC/CLC06_PT.zip

and try dissolving using one of the fields, for example CODE_06. The tool will take hours (in my core2duo pc) to reach the 50%.

GRASS take under a minute to complete the operation. One/two minutes it is also the required time to complete the same operation with gvSIG.

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