[gdal-dev] reload of layer definition without closing dataset

[Even Rouault]

You can't. By doing OGR_DS_ExecuteSQL, you by-pass OGR and it cannot know that 
you have altered the definition. Reloading is the only safe solution.

Proper fix : add support for a DeleteField() method at the OGR Layer level. 
See http://trac.osgeo.org/gdal/ticket/2671. It would require someone pushing 
a RFC on that.

Le Thursday 04 June 2009 23:34:09 godofredo contreras, vous avez écrit :
> Hi:
>
>
>
> I'm trying to implement a reestructure layer routine for database
> datasources. I'm using OGR_DS_ExecuteSQL to send a drop column statement to
> mysql dataset and it works correctly, it drops the column but the problem
> is that the layer definition stays the same, how can I force the reload of
> layer definition without closing and opening the dataset?
>
>
>
> Regards
>
>
>
> Godofredo Contreras
>
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