Enum datafusion::rel::Rel

pub enum Rel {
    Projection {
        expr: Vec<Expr>,
        input: Box<Rel>,
        schema: Schema,
    },
    Selection {
        expr: Expr,
        input: Box<Rel>,
        schema: Schema,
    },
    TableScan {
        schema_name: String,
        table_name: String,
        schema: Schema,
    },
    CsvFile {
        filename: String,
        schema: Schema,
    },
    EmptyRelation,
}

Relations

Variants

Projection

Fields of Projection

expr: Vec<Expr>
input: Box<Rel>
schema: Schema

Selection

Fields of Selection

expr: Expr
input: Box<Rel>
schema: Schema

TableScan

Fields of TableScan

schema_name: String
table_name: String
schema: Schema

CsvFile

Fields of CsvFile

filename: String
schema: Schema

EmptyRelation

Methods

impl Rel

fn schema(&self) -> Schema

Trait Implementations

impl Debug for Rel

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for Rel

fn clone(&self) -> Rel

Returns a copy of the value.

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

Performs copy-assignment from source.