[gdal-dev] RFC 29: OGR Set Desired Fields

[Jez Walters]

Martin,


When I convert Ordnance Survey MasterMap GML to ESRI Shapefiles using ogr2ogr, I'm getting different field numbers for the same field name in different GML chunk files.  Apologies if I have the wrong end of the stick, but wouldn't your proposed interface therefore require me to invoke ogr2ogr differently for each different GML chunk file, in order to accommodate the different field ordering?

Assuming I'm right, wouldn't it be more useable for the interface to use field names rather than numbers?


Regards,


Jez


-----Original Message-----
From: gdal-dev-bounces at lists.osgeo.org [mailto:gdal-dev-bounces at lists.osgeo.org] On Behalf Of Martin Dobias
Sent: Wednesday 21 July 2010 09:11
To: gdal-dev at lists.osgeo.org
Subject: [gdal-dev] RFC 29: OGR Set Desired Fields

Hi,

based on the discussion about optimizing the performance of reading features in OGR few days ago, I've prepared an RFC that proposes API
for limiting which fields will be fetched when reading features:

http://trac.osgeo.org/gdal/wiki/rfc29_desired_fields

Any comments or suggestions are highly welcome.

Regards
Martin
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