The constraints on a RelSubset should be the union of the constraints of all of the RelNodes in that subset. (I haven’t tested it, or read the code. But if it doesn’t do that, you’re probably seeing a bug, or you haven’r configured your metadata providers correctly.)
> On Aug 3, 2023, at 9:33 AM, Nick Riasanovsky <n...@bodo.ai> wrote: > > Hello everyone, > > I am attempting to use AggregateProjectPullUpConstantsRule within an > optimizer that is using the VolcanoPlanner. When doing so I encounter > issues with what should be valid constants on the line > `mq.getPulledUpPredicates()` because aggregate.getInput() is a RelSubset. > As a result, the predicates list is always empty. If I replace the uses of > aggregate.getInput() with input then everything works as expected. > > I am happy to submit a PR upstream with this fix, but I first want to > confirm that my interpretation is correct as I am relatively new to using > the volcano planner and could have missed a configuration step. > > Thanks everyone, > Nick Riasanovsky
