Enum Tier 

pub enum Tier {
    Card,
    Summary,
    Index,
}

Which tier of the three-tier exploration model can answer a query cheapest: Card (precomputed in this metadata section, index-free), Summary (the pyramid superedge totals, index-free), or Index (needs the triple index).

Variants

Card

Summary

Index

Trait Implementations

impl Clone for Tier

fn clone(&self) -> Tier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Tier

impl Debug for Tier

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Tier

fn deserialize<__D>( __deserializer: __D, ) -> Result<Tier, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Tier

impl PartialEq for Tier

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Tier

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Tier