Enum ProjectionKind 

pub enum ProjectionKind {
    Select,
    WithColumns,
}

Logical plan nodes and projection kinds. How a projection node should be interpreted.

Variants

Select

Select columns/expressions, producing a new schema.

WithColumns

Add or overwrite columns, preserving existing columns.

Trait Implementations

impl Clone for ProjectionKind

fn clone(&self) -> ProjectionKind

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProjectionKind

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

Formats the value using the given formatter.