[gdal-dev] Executing a query getting null layer

[Even Rouault]

On mercredi 22 mars 2017 13:58:52 CET Ahmed Tolba wrote:
> My data is in mapserver database which is PostGres PostGIS. What's the
> equivalent function for st_linefrommultipoint ?

Ah ok just put NULL for the dialect argument in that case. This will evaluate the query on 
Postgres side.

 
> -----Original Message-----
> From: gdal-dev [mailto:gdal-dev-bounces at lists.osgeo.org] On Behalf Of
> jratike80
 Sent: Wednesday, March 22, 2017 2:40 PM
> To: gdal-dev at lists.osgeo.org
> Subject: Re: [gdal-dev] Executing a query getting null layer
> 
> andreahmed wrote
> 
> > I replaced OGRSQL with SQLite, It says now
> > 
> > No such function: st_linefrommultipoint
> 
> 
> That's no wonder because SpatiaLite does not have such function
> https://www.gaia-gis.it/gaia-sins/spatialite-sql-latest.html.
 
> Where do you have your data? Are they in PostGIS which has a native support
> for http://postgis.net/docs/ST_LineFromMultiPoint.html?
 
> -Jukka Rahkonen.-
> 
> 
> 
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