Enum AggOutputSlot 

pub enum AggOutputSlot {
    GroupKey(usize),
    Aggregate(usize),
}

Records SELECT-list interleaving of GROUP BY keys and aggregate expressions so the output-schema builder emits columns in the user’s SELECT order instead of a hardcoded group-keys-first order. GroupKey(i) indexes Aggregate::group_by[i]; Aggregate(j) indexes Aggregate::aggregates[j]. Empty = no projection was in scope when the plan was built (engine-rules base plan); output_schema falls back to group-keys-first, matching pre-fix behavior.

Variants

GroupKey(usize)

Aggregate(usize)

Trait Implementations

impl Clone for AggOutputSlot

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AggOutputSlot

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

Formats the value using the given formatter.

impl Eq for AggOutputSlot

impl PartialEq for AggOutputSlot

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for AggOutputSlot