Struct datafusion::rel::TupleType

pub struct TupleType {
    pub columns: Vec<ColumnMeta>,
}

Definition of a relation (data set) consisting of one or more columns.

Fields

columns: Vec<ColumnMeta>

Methods

impl TupleType

fn empty() -> Self

create an empty tuple

fn new(columns: Vec<ColumnMeta>) -> Self

fn column(&self, name: &str) -> Option<(usize, &ColumnMeta)>

look up a column by name and return a reference to the column along with it's index

Trait Implementations

impl Debug for TupleType

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

Formats the value using the given formatter.

impl Clone for TupleType

fn clone(&self) -> TupleType

Returns a copy of the value.

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

Performs copy-assignment from source.