[QGIS-trac] [Quantum GIS] #2533: Attribute Table advanced search doesn't distinguish between 0 and NULL

[Quantum GIS]

#2533: Attribute Table advanced search doesn't distinguish between 0 and NULL
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   Reporter:  hdus                              |              Owner:  nobody       
       Type:  bug                               |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.5.0
  Component:  Vectors                           |            Version:  HEAD         
   Keywords:                                    |   Platform_version:               
   Platform:  RedHat                            |           Must_fix:  Yes          
Status_info:  0                                 |  
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 1. open the attached shape
 2. open attribute table
 3. open Advanced search
 4. select attribute Hoehenbest = 0
 5. => all records with value 0 and NULL are selected

 With Hoehenbest = 1 records with value NULL are not selected. This
 behaviour only appears with Advances search in attribute table. All other
 search methods are working correct.

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/2533>
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