jef 4ed28f36b8 wider support for vector layer queries:
- add query support for OGR and spatialite layers (additional to postgres)
- QgsDataProvider::setSubsetString() now returns if the query is successful.
- add optional parameter to limit number of values returned from QgsVectorDataProvider::uniqueValues() 
- rename QgsDbSourceSelect to QgsPgSourceSelect, use QgsVectorLayer for layer queries and make it wider
- QgsDataSourceURI: improve quoting
- fix relative path support for SpatiaLite on windows
- rename QgsPgQueryBuilder to QgsQueryBuilder and use QgsVectorLayer for
  queries instead of postgres

cleanups:
- rename QgsServerSourceSelect to QgsWMSSourceSelect



git-svn-id: http://svn.osgeo.org/qgis/trunk@11762 c8812cc2-4d05-0410-92ff-de0c093fc19c
2009-10-06 22:05:52 +00:00
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2009-07-23 10:59:59 +00:00
2009-09-05 19:49:10 +00:00
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