[fdo-trac] #237: SQLServer Spatial: optimize SELECT SpatialExtents() for performance

[FDO]

#237: SQLServer Spatial: optimize SELECT SpatialExtents() for performance
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   Reporter:  danstoica          |       Owner:  danstoica
       Type:  enhancement        |      Status:  new      
   Priority:  major              |   Milestone:  3.3.0    
  Component:  SQLServer Spatial  |     Version:  3.3.0    
   Severity:  3                  |    Keywords:           
External_id:                     |  
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 NOTE: SELECT COUNT(), SpatialExtents() is optimized.

 Found that "select <column>.STEnvelope().STAsBinary() as MBR from <table>"
 is 3 times slower than straithforward "select <column>.STAsBinary() as MBR
 from <table>"

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Ticket URL: <http://trac.osgeo.org/fdo/ticket/237>
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