How about querying the sqlite_master table to find the data type? And why not use the constraints found in this query to set up the qgis relations?
-Bob (aka cgs_bob on freenode) On May 27, 2014 6:04 AM, "Régis Haubourg" < [email protected]> wrote: > Hugo Mercier wrote > > Or > >> calculated fields in view can't be explicitly cast, so QGIS should have > >> to > >> guess data type based on a data scan (a major unadressed issue of > sqlite) > > > > Hmmm I wasn't aware of this limitation in SQLITE views :( > > Yes, SQLITE does dynamic typing, so user or provider has to scan values to > guess the right type. > Here is a sqlite topic on that [0] > And here my initial post in qgis list [1] > > [0] > > http://sqlite.1065341.n5.nabble.com/Computed-columns-in-VIEWs-return-NULL-but-should-be-able-to-be-typed-Any-ideas-td56769.html#a56770 > > [1] > > http://osgeo-org.1560.x6.nabble.com/Spatialite-can-t-type-fields-of-a-view-td5058436.html > > > > > -- > View this message in context: > http://osgeo-org.1560.x6.nabble.com/have-aggregate-window-expressions-ever-been-discussed-tp5142215p5142714.html > Sent from the Quantum GIS - Developer mailing list archive at Nabble.com. > _______________________________________________ > Qgis-developer mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-developer >
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