Struct HashIndex 

pub struct HashIndex {
    pub index: Index,
}

Available on crate feature database and non-WebAssembly only.

Hash index

Fields

index: Index

The index.

Implementations

impl HashIndex

pub fn new(name: impl Into<String>, fields: Vec<String>) -> HashIndex

Create a new Hash index for equality comparisons

Examples

use reinhardt_db::orm::indexes::HashIndex;

let hash = HashIndex::new("user_email_hash", vec!["email".to_string()]);
assert_eq!(hash.index.name, "user_email_hash");
// Hash indexes are fast for equality but don't support range queries

pub fn to_sql(&self, table: &str) -> String

Documentation for to_sql

Trait Implementations

impl Clone for HashIndex

fn clone(&self) -> HashIndex

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HashIndex

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for HashIndex

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for HashIndex

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.