Current implement is very simply and conservative, because our query planner is error-prone. After we implement the new query planner, we could do this work by `Predicate Equivalence Class` and `PredicatePushDown` rule like presto.
Current implement is very simply and conservative, because our query planner is error-prone. After we implement the new query planner, we could do this work by `Predicate Equivalence Class` and `PredicatePushDown` rule like presto.