Module logical_join

Structs

LogicalJoin

LogicalJoin combines two relations according to some condition.

LookupJoinPredicateRewriter 🔒

Rewrite the join predicate and all columns referred to the scan side need to rewrite.

LookupJoinScanPredicateRewriter 🔒

Rewrite the scan predicate so we can add it to the join predicate.

Functions

derive_predicate_from_eq_condition 🔒

We are trying to derive a predicate to apply to the other side of a join if all the InputRefs in the predicate are eq condition columns, and can hence be substituted with the corresponding eq condition columns of the other side.