Enum IndexMethod 

pub enum IndexMethod {
    BTree,
    Hnsw,
    Brin,
    Gin,
}

Variants

BTree

Default — B-tree over IndexKey. Used for equality / range lookups on scalar columns.

Hnsw

USING hnsw — NSW graph for kNN over a vector column.

Brin

v6.7.1 — USING brin — Block Range INdex. Per-segment metadata that records (min_key, max_key) for each page in a cold-tier segment, on the indexed column. The optimizer can use these summaries to skip pages whose range does NOT overlap a query’s WHERE predicate. BRIN indexes carry no in-memory data — the summaries live in the segment v2 envelope’s sidecar. Created via the standard CREATE INDEX … USING brin (col) syntax.

Gin

v7.12.3 — USING gin — inverted index over a tsvector column. Posting lists map lexeme word → row locators; the planner uses them to narrow WHERE col @@ tsquery to the candidate rows whose vectors contain a matching term, then re-evaluates the full @@ semantics on each candidate. Replaces the v7.9.26b USING gin → BTree fallback that silently degraded to a full scan at query time.

Trait Implementations

impl Clone for IndexMethod

fn clone(&self) -> IndexMethod

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for IndexMethod

impl Debug for IndexMethod

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

Formats the value using the given formatter.

impl Eq for IndexMethod

impl PartialEq for IndexMethod

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for IndexMethod