[GRASS5] [bug #1566] (grass) vector data select by attribute

Radim Blazek blazek at itc.it
Mon Feb 3 04:48:27 EST 2003

On Monday 03 February 2003 05:37 am, Request Tracker wrote:
> this bug's URL: http://intevation.de/rt/webrt?serial_num=1566
> -------------------------------------------------------------------------
> Subject: vector data select by attribute
> grass binary for platform: Compiled from Sources
> GRASS Version: 5.0.0 (Aug 2002)
> Improved support for selecting vector data by attribute (eg: 200m contours
> from a vector map of contour data) and to select from multiple maps to
> create a new map (or ideally to create a virtual map with pointers to the
> data, which may optionally be saved as a new map).
> I'm not sure if the 5.1 data management in PostGreSQL/PostGIS will permit
> this through the use of db views, if GRASS 5.1 can access such views as
> maps. If so, then the wish is coming true :-)
> Thanks,
>    Brent Wood

Standard way to do this in 5.1 (format and db driver independent) is:
v.extract where=

It is true that you can use views, but it is not intended for
normal usage.


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