Struct mz_transform::FuseAndCollapse

pub struct FuseAndCollapse {
    pub(crate) transforms: Vec<Box<dyn Transform>>,
}

A sequence of transformations that simplify the MirRelationExpr

Fields

transforms: Vec<Box<dyn Transform>>

Trait Implementations

impl Debug for FuseAndCollapse

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FuseAndCollapse

fn default() -> Self

Returns the “default value” for a type.

impl Transform for FuseAndCollapse

fn transform(
    &self,
    relation: &mut MirRelationExpr,
    args: TransformArgs<'_>
) -> Result<(), TransformError>

Transform a relation into a functionally equivalent relation.

fn debug(&self) -> String

A string describing the transform.

fn recursion_safe(&self) -> bool

Indicates if the transform can be safely applied to expressions containing LetRec AST nodes.