[fdo-trac] #689: SDF crashes on unknown ordering field

[FDO]

#689: SDF crashes on unknown ordering field
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   Reporter:  haris     |       Owner:  gregboone
       Type:  defect    |      Status:  new      
   Priority:  critical  |   Milestone:  3.5.0    
  Component:  FDO API   |     Version:  3.4.0    
   Severity:  2         |    Keywords:           
External_id:            |  
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 Using unknown name for order field will cause SDF to crash (uses zero
 pointer).

 Zero pointer access will happen in SdfImpExtendedSelect.cpp in line 519
 'reader->GetComputedIdentifierValue(..)'.

 Reason is that after not finding property name in class provider will
 assume it is computed field and will try to use 'reader' to get value for
 it. But reader is not initialized

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Ticket URL: <http://trac.osgeo.org/fdo/ticket/689>
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