Enum FastPathPlan

pub enum FastPathPlan {
    Constant(Result<Vec<(Row, Diff)>, EvalError>, RelationType),
    PeekExisting(GlobalId, GlobalId, Option<Vec<Row>>, SafeMfpPlan),
    PeekPersist(GlobalId, Option<Row>, SafeMfpPlan),
}

Variants

Constant(Result<Vec<(Row, Diff)>, EvalError>, RelationType)

The view evaluates to a constant result that can be returned.

The RelationType is unnecessary for evaluating the constant result but may be helpful when printing out an explanation.

PeekExisting(GlobalId, GlobalId, Option<Vec<Row>>, SafeMfpPlan)

The view can be read out of an existing arrangement. (coll_id, idx_id, values to look up, mfp to apply)

PeekPersist(GlobalId, Option<Row>, SafeMfpPlan)

The view can be read directly out of Persist.

Implementations

impl FastPathPlan

pub fn fmt_default_text<'a, T>( &self, f: &mut Formatter<'_>, ctx: &mut PlanRenderingContext<'a, T>, ) -> Result

pub fn fmt_verbose_text<'a, T>( &self, f: &mut Formatter<'_>, ctx: &mut PlanRenderingContext<'a, T>, ) -> Result

impl FastPathPlan

pub fn used_indexes(&self, finishing: Option<&RowSetFinishing>) -> UsedIndexes

Trait Implementations

impl Clone for FastPathPlan

fn clone(&self) -> FastPathPlan

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FastPathPlan

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FastPathPlan

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<'a, T: 'a> DisplayText<PlanRenderingContext<'a, T>> for FastPathPlan

fn fmt_text( &self, f: &mut Formatter<'_>, ctx: &mut PlanRenderingContext<'a, T>, ) -> Result

impl Ord for FastPathPlan

fn cmp(&self, other: &FastPathPlan) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for FastPathPlan

fn eq(&self, other: &FastPathPlan) -> 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 PartialOrd for FastPathPlan

fn partial_cmp(&self, other: &FastPathPlan) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for FastPathPlan

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for FastPathPlan

impl StructuralPartialEq for FastPathPlan