Hi João, Which Calcite version are you using?
Did you implement your own Convention (and the method getInterface)? Best, Stamatis On Tue, Mar 24, 2020 at 4:12 PM João Silva <[email protected]> wrote: > I keep getting a NPE exception using the method setRoot() even though my > RelNode is not null. Does anyone have any idea about what could be the > problem? > > java.lang.NullPointerException > > at > > > org.apache.calcite.plan.volcano.VolcanoPlanner.registerImpl(VolcanoPlanner.java:1654) > > at > > > org.apache.calcite.plan.volcano.VolcanoPlanner.setRoot(VolcanoPlanner.java:296) > > at optimizer.VolcanoTest.main(VolcanoTest.java:134) > > > > Thank you. >
