Struct QuerySchema 

pub struct QuerySchema { /* private fields */ }

Column names shared by every row of one query result.

Implementations

impl QuerySchema

pub fn try_new(columns: impl IntoIterator<Item = String>) -> Result<Self>

pub fn empty() -> Self

pub fn columns(&self) -> &[String]

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

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

Trait Implementations

impl Clone for QuerySchema

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QuerySchema

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

Formats the value using the given formatter.

impl Eq for QuerySchema

impl PartialEq for QuerySchema

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for QuerySchema