Struct datafusion::rel::Schema

pub struct Schema {
    pub columns: Vec<Field>,
}

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

Fields

columns: Vec<Field>

Methods

impl Schema

pub fn empty() -> Self

create an empty schema

pub fn new(columns: Vec<Field>) -> Self

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

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

pub fn to_string(&self) -> String

Trait Implementations

impl Debug for Schema

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

Formats the value using the given formatter.

impl Clone for Schema

fn clone(&self) -> Schema

Returns a copy of the value.

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

Performs copy-assignment from source.