Struct GroupChoice 

#[non_exhaustive]
pub struct GroupChoice {
    pub rows: usize,
    pub estimate: Option<GroupEstimate>,
}

What a replaced aggregate’s run-time choice was made from.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

rows: usize

Rows of the collected input.

estimate: Option<GroupEstimate>

The group-count probe’s answer (None when aggregate_choice forced the choice).

Trait Implementations

impl Clone for GroupChoice

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 GroupChoice

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

Formats the value using the given formatter.

impl PartialEq for GroupChoice

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for GroupChoice