Enum IvfflatIterativeScan 

pub enum IvfflatIterativeScan {
    Off,
    RelaxedOrder,
}

The same setting for pgvector’s IVFFlat index (#1116).

A separate type from HnswIterativeScan because pgvector accepts a different set of values here — measured against pgvector 0.8.6:

WARNING:  invalid value for parameter "ivfflat.iterative_scan": "strict_order"
HINT:  Available values: off, relaxed_order.

and the setting then falls back to off. One shared enum with a clamp would turn the operator’s choice into a value the server discards, which is the shape of the defect being fixed. Here it is simply not expressible.

Variants

Off

pgvector’s own default; see HnswIterativeScan::Off.

RelaxedOrder

Continue scanning until k rows survive the filter. The only continuation mode IVFFlat defines.

Implementations

impl IvfflatIterativeScan

pub const fn as_guc_value(self) -> &'static str

The value as pgvector spells it.

Trait Implementations

impl Clone for IvfflatIterativeScan

fn clone(&self) -> IvfflatIterativeScan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for IvfflatIterativeScan

impl Debug for IvfflatIterativeScan

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

Formats the value using the given formatter.

impl Default for IvfflatIterativeScan

fn default() -> IvfflatIterativeScan

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for IvfflatIterativeScan

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for IvfflatIterativeScan

impl PartialEq for IvfflatIterativeScan

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for IvfflatIterativeScan

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 IvfflatIterativeScan