[GRASS-dev] Re: [GRASS GIS] #831: v.category options sum, del, and add do nothing

[GRASS GIS]

#831: v.category options sum, del, and add do nothing
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  Reporter:  isaacullah   |       Owner:  martinl         
      Type:  enhancement  |      Status:  new             
  Priority:  major        |   Milestone:  7.0.0           
 Component:  Vector       |     Version:  svn-develbranch6
Resolution:               |    Keywords:  v.category      
  Platform:  All          |         Cpu:  All             
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Comment (by martinl):

 Replying to [comment:7 cmbarton]:
 > v.to.db won't work for this. If a cat value was originally 3 and has
 been changed to 5, the link with the corresponding attribute record will
 be lost, because the attribute record still has cat=3. With this link
 gone, there is no way for v.to.db to know which is the correct recor

 I this case use {{{db.execute}}} and UPDATE statement.

 Martin

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Ticket URL: <http://trac.osgeo.org/grass/ticket/831#comment:9>
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