Hi Nils,
are you working against raster or vector data?
Cheers
Andrea
On Mon, Mar 20, 2017 at 11:22 AM, Nils Bühner <bueh...@terrestris.de> wrote:
> Hi all,
>
> i have a question regarding the handling of null values in WMS-Time
> requests for the following scenario:
>
> GeoServer 2.10.2
> Datastore: PostgreSQL 9.5.6/PostGIS 2.2.1
>
> The requested layer is configured with the following start/end
> attributes in its dimensions tab to support the TIME parameter in GetMap
> requests:
>
> Attribute: start_date
> End Attribute (optional): end_date
>
> When requesting a GetMap with the TIME value
> "2016-03-19T00:00:00.000Z/2017-03-20T23:59:59.999Z", the GeoServer
> generates the following condition in the WHERE clause:
>
> WHERE ("start_date" <= '2017-03-21' AND "start_date" IS NOT NULL AND
> "end_date" >= '2016-03-19' AND "end_date" IS NOT NULL)
>
>
> Problem/Question:
>
> In the database of our customer, many entries of "end_date" are NULL.
> The semantic of a null value is something like "not yet defined" and the
> desired behavior would be to handle these null values as "PRESENT" (or
> something in the future). The problem is that the condition above
> contains "IS NOT NULL", so these entries are never fetched from the
> database (and therefore never rendered on a map). It is not possible
> (for our customer) to change the data (for example to set the null
> values to a value in the far future). So the main question is:
>
> Is there a way/trick to achieve the described behavior?
>
> If not: Is it conceivable to write some lines of code to make such a
> behavior configurable in some way (e.g. in the dimensions tab of a
> layer)? Or would this disagree with the standard in some way?
>
> Best regards,
> Nils
>
>
>
>
> --
> Dipl.-Inf. Nils Bühner
> — Anwendungsentwickler —
> terrestris GmbH & Co. KG
> Kölnstr. 99
> 53111 Bonn
>
> Tel: +49 (0)228 / 96 28 99 -54
> Fax: +49 (0)228 / 96 28 99 -57
>
> Email: bueh...@terrestris.de
> Web: http://www.terrestris.de
>
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> Komplementärin: terrestris Verwaltungsgesellschaft mbH
> vertreten durch: Hinrich Paulsen, Till Adams
>
>
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Ing. Andrea Aime
@geowolf
Technical Lead
GeoSolutions S.A.S.
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