Hi Martin,
it certainly looks similar, most likely same.

No new development, still not possible, people still welcome to chip in
with resources/funds:
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer

Cheers
Andrea

On Thu, Nov 19, 2015 at 6:32 AM, Martin Davis <[email protected]> wrote:

> I think this is the same issue discussed in this (lengthy) thread:
>
>
> http://osgeo-org.1560.x6.nabble.com/Reducing-query-data-size-in-Oracle-td5192620.html
>
> TLDR: not possible right now, apparently requires clever development to
> make it work.
>
> If there has been improvement on this front it would be great to know
> about it.  Or would be great to have someone implement a workaround!
>
> On Wed, Nov 18, 2015 at 12:08 PM, cheesybiscuits <
> [email protected]> wrote:
>
>> I've created a function within Oracle for on-the-fly clustering that I
>> hoped
>> to query via GeoServer using an SQL view layer.
>>
>> The function takes as its arguments the bounding box and the number of
>> grid
>> cells to use in a basic gridded clustering process (i.e. find the centre
>> of
>> mass for points within each grid cell). Please note I've tried the Point
>> Stacker extension and it isn't adequate for my needs. Executing the
>> following query within Oracle gives the list of sdo_geometry objects that
>> I
>> expect:
>>
>> select * from table(package_name.function_name(-180, -90, 180, 90, 3);
>>
>> My intention is to make WMS requests to GeoServer with the viewparams
>> parameter included that provides all required arguments. Because of the
>> way
>> the function works the returned sdo_geometry objects will only ever be
>> within the provided bounding box.
>>
>> I can successfully create an SQL view layer within GeoServer using this
>> syntax and everything seems OK while publishing. However when I access the
>> layer everything falls apart. GeoServer takes my query and wraps it as
>> follows:
>>
>> SELECT GEOMETRY as GEOMETRY FROM (select * from
>> table(package_name.function_name(-180, -90, 180, 90, 3))) VTABLE WHERE
>> SDO_FILTER(GEOMETRY, ?, 'mask=anyinteract querytype=WINDOW') = 'TRUE'
>>
>> Oracle then errors because the function's table return type doesn't have a
>> spatial index to use with SDO_FILTER. Although I did find a  somewhat
>> similar problem on GIS.SE
>> <
>> http://gis.stackexchange.com/questions/92554/can-i-create-an-oracle-spatial-view-from-a-non-spatial-table
>> >
>> the same solution does not apply as my function returns a table, not a
>> single object, and Oracle doesn't permit indexes on named table types.
>>
>> As things currently stand I don't think I can make this work, and the only
>> thing that could potentially help is to prevent GeoServer from appending
>> its
>> SDO_FILTER mask. However I'm guessing this just isn't possible without
>> digging into the source and creating a custom build (totally not an
>> option).
>>
>> Can anyone tell me if there's something I've missed here, or suggest a
>> different approach for solving the same problem? Any thoughts would be
>> very
>> much appreciated.
>>
>>
>>
>> --
>> View this message in context:
>> http://osgeo-org.1560.x6.nabble.com/GeoServer-s-spatial-filter-preventing-SQL-view-layer-from-working-tp5237269.html
>> Sent from the GeoServer - User mailing list archive at Nabble.com.
>>
>>
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