Hi,
I think that such check should be optional. The bounding box that gets saved
when the layer is created may not stay valid if the data are updated and new
features are added with WFS-T or just directly to the data source. And
obviously the check should only stop the queries if BBOX is totally outside the
data extents.
I do not know how expensive the out-of-range requests are but I guess that
bounding box filter could only make things faster but not any slower. But if
you decide to go that way, why to do the test with an inaccurate bounding box?
About 50% of the BBOX of Finland is actually Sweden, Russia, Norway, or empty
sea. How about making an additional configuration option "Bounding Polygon" and
use that? A further development step would be to make the integrated GWC to
utilize this Bounding Polygon as well.
-Jukka Rahkonen-
________________________________
Lingbo Jiang wrote:
Hi Geoserver community,
For every WMS layer that has latLongBoundingBox set up in the config, GeoServer
may restrict the request to the configured latLongBoundingBox. At the moment,
it doesn't, and this results in unnecessary query and wastes connections and
cursors (for Oracle).
Thus I propose to add an option in the code for latLongBoundingBox range
checking. the option will allow to filter the none result query which is out of
latLongBoundingBox range and improve the performance.
If community reckon that it is the right way, I am willing to submit a code
patch to implement it if necessary.
Thanks first,
Lingbo
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