Function mz_dataflow_types::plan::linear_to_mfp
source · [−]pub fn linear_to_mfp(
linear: LinearOperator,
typ: &RelationType
) -> MapFilterProject
Expand description
Helper method to convert linear operators to MapFilterProject instances.
This method produces a MapFilterProject
instance that first applies any predicates,
and then introduces Datum::Dummy
literals in columns that are not demanded.
The RelationType
is required so that we can fill in the correct type of Datum::Dummy
.