Struct QueryMaterializationSummary 

pub struct QueryMaterializationSummary { /* private fields */ }

Materialization facts relevant to read admission.

Implementations

impl QueryMaterializationSummary

pub const fn none() -> Self

Build a summary for a plan that does not materialize rows for sorting.

pub const fn sort( materialized_rows: Option<u32>, row_bound_kind: QueryBoundKind, ) -> Self

Build a summary for a plan that materializes rows for sorting.

pub const fn materialized_sort(&self) -> bool

Return whether the plan materializes rows for sorting.

pub const fn materialized_rows(&self) -> Option<u32>

Return the row materialization bound, if known.

pub const fn row_bound_kind(&self) -> QueryBoundKind

Return the quality of the materialization row bound.

Trait Implementations

impl Clone for QueryMaterializationSummary

fn clone(&self) -> QueryMaterializationSummary

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for QueryMaterializationSummary

impl Debug for QueryMaterializationSummary

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

Formats the value using the given formatter.

impl Eq for QueryMaterializationSummary

impl PartialEq for QueryMaterializationSummary

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