[gdal-dev] Why have I got SRS 900914 in my PostGIS table after ogr2ogr alimentation ?

[Even Rouault]

Le mercredi 24 octobre 2012 08:48:54, SAEZ Laurent - 
SG/SPSSI/CPII/DOM/ETER/PNE IG a écrit :
> Thanks Even for your answer.
> 
> In fact I add EPSG code 4467 in my spatial_ref_sys with the definition I
> took in PostGIS 2.0.
> So this code is present in the table spatial_ref_sys and I do not
> understand why the code 900914 is added.

ok, I see no reason why this should not work. In order to debug this, you can 
just try to run the following SQL request, which is exactly what the PG driver 
will do to determine if the SRS already exists in spatial_ref_sys or if it 
must add another entry.

SELECT srid FROM spatial_ref_sys WHERE auth_name = 'EPSG' AND auth_srid = 4467

If it doesn't return anything, then a new entry (900914) will be added, 
otherwise it will reuse the returned SRID.

(in order to that query is done, ogr2ogr must know the EPSG code of the source 
datasource. Otherwise you need to force it with -a_srs EPSG:4467 )

Even