Using the plugin "RT SQL Layer" is possible to add to qgis a query sql .<br>It call directly posgres without use a memory provider, without save temporary data on datafile and without creating temporary tables.<br>
But again qgis need to have a field with unique integers.<br><br>I don't sure but perhaps to avoid this needed you can use the "generate_series" to add a sequence number to your query sql.<br><br><br>-- <br>
-----------------<br>Andrea Peri<br>. . . . . . . . . <br>qwerty אטלעש<br>-----------------<br><br>