[mapguide-users] Spatial query fails: too many objects

[von Wartburg, Jan BKSD]

Thanks for your answer, Jackie!

- the length of my AGF byteReader is 1084294, so it's much smaller than the 16MB limit
- I had no luck with unioning the polygons together: The result is a multipolygon, similar to the mergedGeometry multipolygon from my first query

I tried the same query with MapGuide 2.4. There's still an internal error.
I "solved" the problem by splitting up the query into two parts and putting the results of the two queries into one selection.

Regards,
Jan

-----Original Message-----
From: mapguide-users-bounces at lists.osgeo.org [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Jackie Ng
Sent: Tuesday, November 06, 2012 5:40 PM
To: mapguide-users at lists.osgeo.org
Subject: Re: [mapguide-users] Spatial query fails: too many objects

Some things to try:

 - Getting the AGF MgByteReader of your mergedGeometries and inspecting the length. When applying the filters the spatial filter geometry the AGF is sunk into a MgByte which has a 16MB limit (lifted to 64MB post-2.2). If the MgByteReader length is greater than 16777216, this could be the problem.

 - Instead of filtering on a polygon collection, union the geometries together and filter on that geometry instead.

- Jackie



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