[gdal-dev] OGR2OGR options -select and -where together

[Christy Nieman]

Hello,

You can indeed use both -select and -where together together.  For example

ogr2ogr -select field1,field2,field3 -where "field1 = value OR field2 = 
anotherValue" input.shp output.shp

Best regards,
Christy

On 03/25/2011 09:38 AM, Luiz Motta wrote:
> Devs,
>
> I would like have the subset of data, by filters of field (-select)
> and attributes(-where), using OGR2OGR.
>
> My enviroment is:
> - Windows XP
> - GDAL from OSGEO4W
> - Version: GDAL 1.8.0, released 2011/01/12
>
> At the moment, i can only make subset(field and attribute) by call
> separate of OGR2OGR.
>
> Has one manner to use options  "select" and "where" in the same call OGR2OGR  ?
>
> Next, my tests  to make subsets:
>
> 1) Source data:
> http://www.dpi.inpe.br/prodesdigital/dadosn/2009/PDigital2009_23367_shp.zip
>
> 2) Show info:
> 2.1) Summary
> ogrinfo -so Prodes2009_23367.shp Prodes2009_23367
> 2.2) Subset features (see -where)
> ogrinfo -q -geom=NO -where "ano = '2009' and class_name =
> 'DESFLORESTAMENTO'"  Prodes2009_23367.shp Prodes2009_23367 | more
>
> 3) Subset data
>
> 3.1) Filter by field(-select) and attribute(-where) ->  Empty data output
> ogr2ogr -f "ESRI Shapefile" -select "ano" -where "ano = '2009' and
> class_name = 'DESFLORESTAMENTO'" filter_select_where.shp
> Prodes2009_23367.shp
> ogrinfo -so filter_select_where.shp filter_select_where
> * Feature Count = 0
>
> 3.2) Filter by field(-select)
> ogr2ogr -f "ESRI Shapefile" -select "ano" filter_select.shp
> Prodes2009_23367.shp
> ogrinfo -so filter_select.shp filter_select
>
> 3.3) Filter by attribute(-where)
> ogr2ogr -f "ESRI Shapefile" -where "ano = '2009' and class_name =
> 'DESFLORESTAMENTO'" filter_where.shp Prodes2009_23367.shp
> ogrinfo -so filter_where.shp filter_where
>
> Regards,
> Luiz Motta
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