It looks cool. I am reading this paper, but I am not sure if I have the ability to review this PR.
Maybe I can understand this paper in combination with PR. Best wishes, Cancai Cai Julian Hyde <[email protected]> 于2024年7月1日周一 04:30写道： > I've added a pull request that supports the AS MEASURE construct so > that you can define measures in a subquery or view (and then use them > in an enclosing query). > > Can people please review https://github.com/apache/calcite/pull/3837. > > Not everything works yet (I describe future changes in > https://issues.apache.org/jira/browse/CALCITE-4496) but a lot of > things do. I would be especially interested in a discussion of how to > implement the rewrites for measures - by means of planner rules, > metadata (RelMdMeasure), or some combination. > > You can find the theory in our paper, > https://dl.acm.org/doi/pdf/10.1145/3626246.3653374. > > Julian >
