[gdal-dev] Python-OGR not looping over more than 500 PGSQL features
Matthieu Rigal
rigal at rapideye.de
Fri Oct 9 06:41:28 EDT 2009
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
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