Support simple transitivity on join predicate pushdown

[kangkaisen]

For #3452

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.

[xinghuayu007]

@kangkaisen ，Mysql has implemented an optimizer with Multiple Equivalence Predicate (MEP). For example, a
=b and b= c and c = 123 ===>> =(a,b,c,123), which implement transitivity of predicates. Does this algorithm solve your problem? Add my WeChat: xinghuayu520 to have a disscussion.