Module join

Structs

Join

Join combines two relations according to some condition.

Functions

can_push_left_from_filter

can_push_left_from_on

can_push_on_from_filter

can_push_right_from_filter

can_push_right_from_on

has_repeated_element 🔒

push_down_into_join

Try to split and pushdown predicate into a into a join condition and into the inputs of the join. Returns the pushed predicates. The pushed part will be removed from the original predicate.

push_down_join_condition

Try to pushes parts of the join condition to its inputs. Returns the pushed predicates. The pushed part will be removed from the original join predicate.

push_down_to_inputs 🔒

Try to split and pushdown predicate into a join’s left/right child. Returns the pushed predicates. The pushed part will be removed from the original predicate.