spatialite: update more infinite where clauses (followup 371f9ba)

Author: jef-n

src/providers/spatialite/qgsspatialitefeatureiterator.cpp

@@ -221,9 +221,9 @@ QString QgsSpatiaLiteFeatureIterator::whereClauseRect()
     // handling a VirtualShape layer
     whereClause += QString( "MbrIntersects(%1, BuildMbr(%2))" ).arg( P->quotedIdentifier( P->mGeometryColumn ) ).arg( mbr( rect ) );
   }
-  else
+  else if ( rect.isFinite() )
   {
-    if ( P->spatialIndexRTree && rect.isFinite() )
+    if ( P->spatialIndexRTree )
     {
       // using the RTree spatial index
       QString mbrFilter = QString( "xmin <= %1 AND " ).arg( qgsDoubleToString( rect.xMaximum() ) );
@@ -251,6 +251,10 @@ QString QgsSpatiaLiteFeatureIterator::whereClauseRect()
       whereClause += QString( "MbrIntersects(%1, BuildMbr(%2))" ).arg( P->quotedIdentifier( P->mGeometryColumn ) ).arg( mbr( rect ) );
     }
   }
+  else
+  {
+    whereClause = "1";
+  }
   return whereClause;
 }