Structsยง
LogicalJoin
combines two relations according to some condition.- Rewrite the join predicate and all columns referred to the scan side need to rewrite.
- Rewrite the scan predicate so we can add it to the join predicate.
Functionsยง
- We are trying to derive a predicate to apply to the other side of a join if all the
InputRef
s in the predicate are eq condition columns, and can hence be substituted with the corresponding eq condition columns of the other side.