Dear Team,
I've reviewed the change log for release 8 so far and do not think that
this question is version specific.
I'm coding to support an incremental process for loading a large spatial
database from a set of distribution objects. I have noted that my present
approach results in the OGR_FID column values restarting at 1 for each append.
This is clearly an error! However, there does not appear to be a method for
initialising the 'nextfidtowrite' value in the API. What is the best strategy
to adopt?
So far as I can see, there appear to be two options. One is to read every
feature until there are no more to read: I'd rather not do that. The other
would involve opening the layer, reading the featurecount and then requesting
the featurecount'th feature - featurecount'th + 1 should give an error. Both
methods should leave the current feature being the last existing feature, but is
this sufficient to effectively initialise the value at which the next FID will
start?
Thanks and best wishes,
Peter
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Peter J Halls, GIS Advisor, University of York
Telephone: 01904 323806 Fax: 01904 323740
Snail mail: IT Services, University of York, Heslington, York YO10 5DD
This message has the status of a private and personal communication
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