Struct datafusion_physical_expr::AnalysisContext

pub struct AnalysisContext {
    pub column_boundaries: Vec<Option<ExprBoundaries>>,
    pub boundaries: Option<ExprBoundaries>,
}

The shared context used during the analysis of an expression. Includes the boundaries for all known columns.

Fields

column_boundaries: Vec<Option<ExprBoundaries>>

A list of known column boundaries, ordered by the index of the column in the current schema.

boundaries: Option<ExprBoundaries>

Implementations

impl AnalysisContext

pub fn new( input_schema: &Schema, column_boundaries: Vec<Option<ExprBoundaries>> ) -> Self

pub fn from_statistics(input_schema: &Schema, statistics: &Statistics) -> Self

Create a new analysis context from column statistics.

pub fn boundaries(&self) -> Option<&ExprBoundaries>

pub fn with_boundaries(self, result: Option<ExprBoundaries>) -> Self

Set the result of the current analysis.

pub fn with_column_update( self, column: usize, boundaries: ExprBoundaries ) -> Self

Update the boundaries of a column.

Trait Implementations

impl Clone for AnalysisContext

fn clone(&self) -> AnalysisContext

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for AnalysisContext

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

Formats the value using the given formatter.

impl PartialEq<AnalysisContext> for AnalysisContext

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for AnalysisContext