Enum CollectionIncludeStrategy 

pub enum CollectionIncludeStrategy {
    Join,
    SplitQuery,
}

Loading strategy for a has_many collection include.

Variants

Join

Load roots and related rows through one LEFT JOIN, then group joined rows by the root primary key.

SplitQuery

Planned split-query strategy for large collections.

The strategy is explicit in the public API, but execution returns a clear error until the split-query implementation lands.

Trait Implementations

impl Clone for CollectionIncludeStrategy

fn clone(&self) -> CollectionIncludeStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CollectionIncludeStrategy

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

Formats the value using the given formatter.

impl PartialEq for CollectionIncludeStrategy

fn eq(&self, other: &CollectionIncludeStrategy) -> 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 Copy for CollectionIncludeStrategy

impl Eq for CollectionIncludeStrategy

impl StructuralPartialEq for CollectionIncludeStrategy