Trait datafrog::JoinInput [−][src]
An input that can be used with from_join
; either a Variable
or a Relation
.
Associated Types
type RecentTuples: Deref<Target = [Tuple]>
[src]
If we are on iteration N of the loop, these are the tuples
added on iteration N-1. (For a Relation
, this is always an
empty slice.)
type StableTuples: Deref<Target = [Relation<Tuple>]>
[src]
If we are on iteration N of the loop, these are the tuples
added on iteration N - 2 or before. (For a Relation
, this is
just self
.)
Required methods
fn recent(self) -> Self::RecentTuples
[src]
Get the set of recent tuples.
fn stable(self) -> Self::StableTuples
[src]
Get the set of stable tuples.