Enum OrderTarget 

pub enum OrderTarget {
    Column(&'static str),
    RelationScalar {
        parent_table: &'static str,
        parent_column: &'static str,
        related_table: &'static str,
        related_column: &'static str,
        value_sql: String,
    },
    VectorDistance {
        column: &'static str,
        metric: VectorMetric,
        query_vector: Vec<f32>,
    },
}

Variants

Column(&'static str)

RelationScalar

Fields

parent_table: &'static str

parent_column: &'static str

related_table: &'static str

related_column: &'static str

value_sql: String

Owned rather than &'static str: the correlated-subquery chain is folded from the traversed relation path at call time (see crate::order_value_sql). It used to be baked in per path at macro-expansion time, which is exactly what made codegen exponential in relation-graph connectivity (cratestack#252).

VectorDistance

Order by distance to a query vector on a Vector(n) column (see docs/design/extensions.md §6/§7, cratestack#163). Built via FieldRef::distance_to(...).asc()/.desc() or the order_by_distance shorthand. PG-only (pgvector) — the embedded rusqlite backend doesn’t ship pgvector, so its renderer fails loud, mirroring how FilterExpr::Spatial is handled there.

Fields

column: &'static str

metric: VectorMetric

query_vector: Vec<f32>

Trait Implementations

impl Clone for OrderTarget

fn clone(&self) -> OrderTarget

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OrderTarget

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

Formats the value using the given formatter.

impl PartialEq for OrderTarget

fn eq(&self, other: &OrderTarget) -> 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 OrderTarget