[QGIS-trac] Re: [Quantum GIS] #3810: Join attributes by location crash

[Quantum GIS]

#3810: Join attributes by location crash
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   Reporter:  bderstine                                  |              Owner:  cfarmer      
       Type:  bug                                        |             Status:  new          
   Priority:  critical: causes crash or data corruption  |          Milestone:  Version 1.7.0
  Component:  fTools                                     |            Version:  Trunk        
   Keywords:                                             |   Platform_version:  7, 64-bit    
   Platform:  Windows                                    |           Must_fix:  No           
Status_info:  1                                          |  
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Comment(by cfarmer):

 A point of clarification:
 > Process ran very slowly up to 27% completeness and then QGIS stopped
 responding and crashed.
 Does this mean that QGIS stopped responding and you closed/terminated the
 application, or did it indeed crash on it's own? If crash, is there any
 output that you can report?

 Note: The Join by location tool is not particularly efficient (not
 optimized for large datasets), and for large datasets, you might be better
 off using postgis, or even a spatialite database, which are more
 appropriate for these types of operations. This is obviously not a
 'solution' to this problem, but rather a viable workaround. I would also
 recommend using the 'Check geometry validity' tool to ensure that your
 polygons are all properly defined and not causing problems themselves.

 Carson

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/3810#comment:3>
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