In a geodatabase, a mechanism for optimizing access to data based on the spatial column of the business table.
17
votes
2answers
1k views
Acquiring ArcGIS-like speed in Postgis
I have been using Postgis 2.0 for 3/4 of a year now and while I really enjoy using it, excessive query processing time has rendered it basically unusable for my use case.
I tend to do heavy ...
2
votes
2answers
343 views
Is ArcMap 10.0 Query Layer passing invalid SQL to Oracle 11gR2?
In two different environments I'm having trouble using ArcMap 10.0 Query Layers to view SDO_GEOMETRY (point) data in Oracle 11.2. This suggests I'm doing something wrong...
Points are in Oracle ...
4
votes
2answers
524 views
How does a quad-tree cope with very large objects?
If I use a quad-tree to index my map data, how does it cope with a road that goes from one end of the map to the other?
What other sort of indexes should I consider to get round this problem?
1
vote
3answers
184 views
how to create RTree index on LineString geometry
I'm working with NTS(NetTopologySuite), then I get some geometries with type of LineString, and I want to create the IntervalRTree Index on them.
Here are some codes:
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