Type Alias datafusion::physical_expr::equivalence::EquivalenceClass

pub type EquivalenceClass = Vec<Arc<dyn PhysicalExpr>>;

An EquivalenceClass is a set of Arc<dyn PhysicalExpr>s that are known to have the same value for all tuples in a relation. These are generated by equality predicates, typically equi-join conditions and equality conditions in filters.

Aliased Type

struct EquivalenceClass { /* private fields */ }