On Thu, Oct 16, 2014 at 10:26 AM, Alvey,David (Chief Executives) <
david.al...@derbyshire.gov.uk> wrote:
> I am experiencing significant delays in rendering png8 tiles from
> geoserver when the data is stored in in SQL server opposed to a shapefile.
>
> There are almost 2 million polygon objects (Ordnance Survey Vector Map
> Local Buildings region).
>
>
>
> The SLD is configured only to render the buildings when zoomed right in.
> It can take a couple of minutes to load and sometimes needs the geoserver
> service to be restarted.
>
Even if the spatial index is there, sql server might decide not to use it
if parallel queries are enabled (because the query planner is just dumb,
I'm afraid).
We added the ability to specify query hints in the data store configuration
in recent versions to basically force sql server to use the spatial index
despite the sql server query planner bad judgement
Cheers
Andrea
--
==
GeoServer Professional Services from the experts! Visit
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==
Ing. Andrea Aime
@geowolf
Technical Lead
GeoSolutions S.A.S.
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