[gdal-dev] Python ogr DataSource.ExecuteSQL syntax?

[Even Rouault]

Selon David Verbyla <dlverbyla at alaska.edu>:

> I am trying to figure out the syntax for .ExecuteSQL using Python ogr.
>
> For example:
> fireLayer.SetAttributeFilter(None) #returns all 2623 polygons
> fireLayer.SetAttributeFilter(" FIREID < 75 ") #returns 4 polygons
>
> I am trying to get the same results using the ExecuteSQL:
> testLayer = dataSource.ExecuteSQL("select * from fireLayer")
> type(testLayer) #retuns NoneType
> testLayer = dataSource.ExecuteSQL("select * from fireLayer where FIREID <
> 75")
> type(testLayer) #retuns NoneType

Is the layer name reported by OGR really "fireLayer" ? (in case you made a
confusion between the OGR layer name and the Python layer object)