Enum IndexMethod 

pub enum IndexMethod {
    BTree,
    Hash,
    Bitmap,
    Spatial,
    H3 {
        resolution: u8,
    },
}

Index type for CREATE INDEX … USING

Variants

BTree

Hash

Bitmap

Spatial

Generic spatial index request (USING SPATIAL) — the engine picks the default spatial backend. As of PRD #1574 slice 4 (#1578) that default is the disk-resident H3 index (RAM stays O(working set)), not the retired in-RAM R-tree.

H3

H3 hexagonal spatial index: the (lat, lon) geo column is encoded to a single H3 cell-id u64 (at resolution) and stored in the existing disk-paged B-tree (PRD #1574 slice 2, #1576).

Fields

resolution: u8

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 Debug for IndexMethod

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

Formats the value using the given formatter.

impl Display for IndexMethod

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

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