[gdal-dev] A CSW query that seems to me works badly

[Even Rouault]

Le 16/11/2022 à 14:07, andy a écrit :
> Hi Even,
>
> On Wed, 16 Nov 2022 at 14:00, Even Rouault 
> <even.rouault at spatialys.com> wrote:
>
>     No, that's not currently implemented in the driver. It hardcodes
>     "subject" to "dc:subject" and "title" to "dc:title", and doesn't
>     use SupportedISOQueryables.
>
> If I use `dc:title` in this XML query
>
> curl -X POST -H "Content-Type: application/xml; charset=UTF-8" -d 
> '<?xml version="1.0" encoding="UTF-8"?><csw:GetRecords 
> resultType="results" service="CSW" version="2.0.2" 
> xmlns:csw="http://www.opengis.net/cat/csw/2.0.2" 
> xmlns:gml="http://www.opengis.net/gml" 
> xmlns:dc="http://purl.org/dc/elements/1.1/" 
> xmlns:dct="http://purl.org/dc/terms/" 
> xmlns:ogc="http://www.opengis.net/ogc" 
> xmlns:ows="http://www.opengis.net/ows" 
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
> xsi:schemaLocation="http://www.opengis.net/cat/csw/2.0.2 
> http://schemas.opengis.net/csw/2.0.2/CSW-discovery.xsd"><csw:Query 
> typeNames="csw:Record"><csw:ElementSetName>full</csw:ElementSetName><csw:Constraint 
> version="1.1.0"><ogc:Filter><ogc:PropertyIsLike wildCard="*" 
> singleChar="_" 
> escapeChar="!"><ogc:PropertyName>dc:title</ogc:PropertyName><ogc:Literal>strutture</ogc:Literal></ogc:PropertyIsLike></ogc:Filter></csw:Constraint></csw:Query></csw:GetRecords>' 
> https://geodati.gov.it/RNDT/csw
>
> I have some results.
>
> If I use OGR
>
> ogrinfo --debug on -ro -al 
> "CSW:http://www.pcn.minambiente.it/geoportal/csw" -where "title LIKE 
> 'strutture'"
>
> I have this error:
>
> ERROR 1: "title" not recognised as an available field.
>
> as if title were not interpreted as `dc:title`.
>
> Is this a bug in the server?

No, title is not in the lists of hardcoded fields by the OGR CSW driver. 
Probably a fix/improvement to do in the driver.

If I recall well from git history, I coded the driver on a rainy sunday 
afternoon 7 years ago, and it didn't receive much love afterwards :-) 
There are certainly room for a lot of improvements.

>
> Than you
>
> -- 
> ___________________
>
> Andrea Borruso
> website: https://medium.com/tantotanto
> 38° 7' 48" N, 13° 21' 9" E, EPSG:4326
> ___________________
>
> "cercare e saper riconoscere chi e cosa,
>  in mezzo all’inferno, non è inferno,
> e farlo durare, e dargli spazio"
>
> Italo Calvino

-- 
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