Struct ExprProperties

pub struct ExprProperties {
    pub sort_properties: SortProperties,
    pub range: Interval,
    pub preserves_lex_ordering: bool,
}

Represents the properties of a PhysicalExpr, including its sorting, range, and whether it preserves lexicographical ordering.

Fields

sort_properties: SortProperties

Properties that describe the sorting behavior of the expression, such as whether it is ordered, unordered, or a singleton value.

range: Interval

A closed interval representing the range of possible values for the expression. Used to compute reliable bounds.

preserves_lex_ordering: bool

Indicates whether the expression preserves lexicographical ordering of its inputs. For example, string concatenation preserves ordering, while addition does not.

Implementations

impl ExprProperties

pub fn new_unknown() -> Self

Creates a new ExprProperties instance with unknown sort properties, unknown range, and unknown lexicographical ordering preservation.

pub fn with_order(self, order: SortProperties) -> Self

Sets the sorting properties of the expression and returns the modified instance.

pub fn with_range(self, range: Interval) -> Self

Sets the range of the expression and returns the modified instance.

pub fn with_preserves_lex_ordering(self, preserves_lex_ordering: bool) -> Self

Sets whether the expression maintains lexicographical ordering and returns the modified instance.

Trait Implementations

impl Clone for ExprProperties

fn clone(&self) -> ExprProperties

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExprProperties

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

Formats the value using the given formatter.