Trait ColumnIndex 

pub trait ColumnIndex {
    // Required method
    fn idx(&self, columns: &[Column]) -> Option<usize>;
}

Things that may be used as an index of a row column.

Required Methods

fn idx(&self, columns: &[Column]) -> Option<usize>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ColumnIndex for &str

fn idx(&self, columns: &[Column]) -> Option<usize>

impl ColumnIndex for usize

fn idx(&self, columns: &[Column]) -> Option<usize>

Implementors