Bug report #21236
Crash running queries in DB Manager
|Affected QGIS version:||3.5(master)||Regression?:||Yes|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||fixed/implemented|
|Crashes QGIS or corrupts data:||Yes||Copied to github as #:||29054|
affected 3.4.4 and master, tested on Windows for now.
open db manager and open sql console (tested on small postgis layer and a virtual layer as well (shapefile))
write a simple query like
select * from mylayer
click execute -->
if you click "execute" a second time shortly after the first time, then QGIS immediately crashes.
Replicating the above on master is a little harder (sometime you have to click "execute" more than twice), but still easy.