[QGIS-trac] Re: [Quantum GIS] #3453: Enable "Use estimated table metadata" by default

[Quantum GIS]

#3453: Enable "Use estimated table metadata" by default
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        Reporter:  arencambre                        |         Owner:  nobody       
            Type:  enhancement                       |        Status:  closed       
        Priority:  major: does not work as expected  |     Milestone:  Version 1.7.0
       Component:  Data Provider                     |       Version:  1.6.0        
      Resolution:  worksforme                        |      Keywords:               
Platform_version:  7                                 |      Platform:  Windows      
        Must_fix:  No                                |   Status_info:  0            
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Changes (by jef):

  * status:  reopened => closed
  * resolution:  => worksforme


Comment:

 Replying to [comment:6 arencambre]:
 > Better yet, is there any reason why '''Use estimated table metadata'''
 shouldn't be enabled by default? If it's likely that views will have a
 single geometry type in a geometry column, then this expensive query has a
 real cost and possibly no benefit for most users.

 Well, it produces unreliable results - we need unique geometry types and
 the estimations don't assure this.

 Judging from the user comments so far large datasets and views are
 uncommon.  So we don't know about save assumptions for views.

 I consider this an edge case and like to keep the defaults as is.

-- 
Ticket URL: <https://trac.osgeo.org/qgis/ticket/3453#comment:7>
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