Struct TypedExpr

pub struct TypedExpr {
    pub expr: ScalarExpr,
    pub typ: ColumnType,
}

A scalar expression with a known type.

Fields

expr: ScalarExpr

The expression.

typ: ColumnType

The type of the expression.

Implementations

impl TypedExpr

pub fn new(expr: ScalarExpr, typ: ColumnType) -> Self

impl TypedExpr

async fn from_substrait_agg_grouping( ctx: &mut FlownodeContext, grouping_expressions: &[Expression], groupings: &[Grouping], typ: &RelationDesc, extensions: &FunctionExtensions, ) -> Result<Vec<TypedExpr>, Error>

Allow deprecated due to the usage of deprecated grouping_expressions on datafusion to substrait side

impl TypedExpr

pub async fn from_substrait_to_datafusion_scalar_func( f: &ScalarFunction, arg_typed_exprs: Vec<TypedExpr>, extensions: &FunctionExtensions, ) -> Result<TypedExpr, Error>

pub async fn from_substrait_scalar_func( f: &ScalarFunction, input_schema: &RelationDesc, extensions: &FunctionExtensions, ) -> Result<TypedExpr, Error>

Convert ScalarFunction into Flow’s ScalarExpr

pub async fn from_substrait_ifthen_rex( if_then: &IfThen, input_schema: &RelationDesc, extensions: &FunctionExtensions, ) -> Result<TypedExpr, Error>

Convert IfThen into Flow’s ScalarExpr

pub fn from_substrait_rex<'life0, 'life1, 'life2, 'async_recursion>( e: &'life0 Expression, input_schema: &'life1 RelationDesc, extensions: &'life2 FunctionExtensions, ) -> Pin<Box<dyn Future<Output = Result<TypedExpr, Error>> + Send + 'async_recursion>>

where 'life0: 'async_recursion, 'life1: 'async_recursion, 'life2: 'async_recursion,

Convert Substrait Rex into Flow’s ScalarExpr

Trait Implementations

impl Clone for TypedExpr

fn clone(&self) -> TypedExpr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TypedExpr

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

Formats the value using the given formatter.

impl Hash for TypedExpr

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for TypedExpr

fn cmp(&self, other: &TypedExpr) -> 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 TypedExpr

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

fn partial_cmp(&self, other: &TypedExpr) -> 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 Eq for TypedExpr

impl StructuralPartialEq for TypedExpr