Matthieu, GetFeatureCount in postgres driver is implemented with the COUNT() function. ( http://trac.osgeo.org/gdal/browser/trunk/gdal/ogr/ogrsf_frmts/pg/ogrpgtablelayer.cpp#L1895 ) So it was never returning more than 500 features. IMHO, the number 500 looks like an intentional limitation, probably set on the server connection.
On Fri, Oct 9, 2009 at 4:11 PM, Matthieu Rigal <ri...@rapideye.de> wrote: > Hi people, > > I recently discovered a strange behaviour which was not happening before, I > think... > I'm using Python 2.5 with GDAL/OGR 1.6 and PGsql 8.3 on Linux. > > I am reading a table containing 858 features with several columns and > geometry. > I first do a SELECT on the table and the GetFeatureCount tells me 858 lines > are being readen. > Then I am looping on the OGR object Feature by feature, to make some > calculation and I send an UPDATE for this particular line through another OGR > object. > I have a counter after every UPDATE. > > Whereas it should go through all the 858 features, it stops after having gone > through 500 features, my counter at the end shows 500 and looking to the > database, it clearly stops after 500. > I've done a test on a second database and it also stopped at 500... > > Is there some recently introduced limitations on OGR side ? I have searched > all the website without finding something about it... May it come from some > Python memory limitation ( I doubt) ? Or from some PGSQL server limitation (I > doubt also because 858 features are returned at the beginning ? > > Thanks for your help, > Best Regards, > Matthieu Rigal > > RapidEye AG > Molkenmarkt 30 > 14776 Brandenburg an der Havel > Germany > > Follow us on Twitter! www.twitter.com/rapideye_ag > > Head Office/Sitz der Gesellschaft: Brandenburg an der Havel > Management Board/Vorstand: Wolfgang G. Biedermann > Chairman of Supervisory Board/Vorsitzender des Aufsichtsrates: > Juergen Breitkopf > Commercial Register/Handelsregister Potsdam HRB 17 796 > Tax Number/Steuernummer: 048/100/00053 > VAT-Ident-Number/Ust.-ID: DE 199331235 > DIN EN ISO 9001 certified > > ************************************************************************* > Diese E-Mail enthaelt vertrauliche und/oder rechtlich geschuetzte > Informationen. Wenn Sie nicht der richtige Adressat sind oder diese > E-Mail irrtuemlich erhalten haben, informieren Sie bitte sofort den > Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie > die unbefugte Weitergabe dieser E-Mail ist nicht gestattet. > > The information in this e-mail is intended for the named recipients > only. It may contain privileged and confidential information. If you > have received this communication in error, any use, copying or > dissemination of its contents is strictly prohibited. Please erase all > copies of the message along with any included attachments and notify > RapidEye AG or the sender immediately by telephone at the number > indicated on this page. > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev > Best regards, -- Chaitanya kumar CH. _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
