Thank you for the links Moritz, VB
Le mercredi 04 mars 2009 à 14:32 +0100, Moritz Lennert a écrit : > On 03/03/09 22:17, Wouter Boasson wrote: > > In reply to Vincent's remarks on database interfaces: > > I don't know how the db.* modules are implemented, but I can't imagine that > > they process the data themselves. > > No, they use the underlying engine of the backend. But connection is > costly. This is why scripts which had a loop calling [v.]db.* statements > in each run of the loop should be rewritten to collect SQL statements in > a temp file and then call db.execute once at the end. See [1] for the > example of v.rast.stats. > > See also some comments of Radim in [2] under "Attributes". > > Moritz > > [1]http://trac.osgeo.org/grass/changeset/20358 > [2]http://freegis.org/cgi-bin/viewcvs.cgi/grass6/doc/vector/TODO?rev=HEAD&content-type=text/vnd.viewcvs-markup > _______________________________________________ > grass-dev mailing list > grass-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-dev > _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
