[GRASS5] [bug #3141] (grass) v.out.ascii: support for outputting attribute columns

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this bug's URL: http://intevation.de/rt/webrt?serial_num=3141
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Subject: v.out.ascii: support for outputting attribute columns

see  http://grass.itc.it/pipermail/grass5/2005-April/017933.html

Radim:
> The possibility to export attributes should be added to v.out.ascii,
> but  it must be done better than in v.out.ogr. All attributes must be 
> selected by one query and read points using category index and keep an
> array of flags if the point was printed. At the end output points 
> without attributes.


agreed, best solution.

option
 key: columns  ("where="??  "sql="??)
 type: string
 description: attribute columns to export
 required : no
 multiple: yes


cats= can be done with the above option too, right?


Hamish


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