Results 6 comments of HuSen

> I am sorry for the late review here -- it is on my list. Basically I am struggling to find time enough to sit down and convince myself that...

> @AssHero do you have some numbers, e.g. how much does it help q19? > > @alamb one thing we might consider is to apply the optimization whenever there is...

> I think this optimization might actually slow some plans down (if the filters that are pushed down don't actually filter many rows, they will just consume CPU). I don't...

add some comments about extract_or_clause.

@ryapandt Do you use this version [2.0.0-incubating-rc1](https://github.com/apache/cloudberry/releases/tag/2.0.0-incubating-rc1) ? I think this issue is fixed by this PR 55d2cacddbcfa1363a948e82fea3ded8fe247a86.