Struct ScanChoice 

pub struct ScanChoice {
    pub order: IndexOrder,
    pub prefix_len: usize,
}

How a pattern scan is keyed.

Fields

order: IndexOrder

Chosen covering index.

prefix_len: usize

Number of leading components bound into the scan prefix.

Trait Implementations

impl Clone for ScanChoice

fn clone(&self) -> ScanChoice

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ScanChoice

impl Debug for ScanChoice

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

Formats the value using the given formatter.

impl Eq for ScanChoice

impl PartialEq for ScanChoice

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ScanChoice