Struct mz_expr::func::CastArrayToArray

pub struct CastArrayToArray {
    pub return_ty: ScalarType,
    pub cast_expr: Box<MirScalarExpr>,
}

Casts an array of one type to an array of another type. Does so by casting each element of the first array to the desired inner type and collecting the results into a new array.

Fields

return_ty: ScalarType

cast_expr: Box<MirScalarExpr>

Trait Implementations

impl Arbitrary for CastArrayToArray

type Parameters = (<ScalarType as Arbitrary>::Parameters, <Box<MirScalarExpr> as Arbitrary>::Parameters)

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.

type Strategy = Map<(<ScalarType as Arbitrary>::Strategy, <Box<MirScalarExpr> as Arbitrary>::Strategy), fn(_: (ScalarType, Box<MirScalarExpr>)) -> CastArrayToArray>

The type of Strategy used to generate values of type Self.

fn arbitrary_with(_top: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args.

fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self).

impl Clone for CastArrayToArray

fn clone(&self) -> CastArrayToArray

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CastArrayToArray

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CastArrayToArray

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for CastArrayToArray

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

Formats the value using the given formatter.

impl From<CastArrayToArray> for UnaryFunc

fn from(variant: CastArrayToArray) -> Self

Converts to this type from the input type.

impl Hash for CastArrayToArray

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 LazyUnaryFunc for CastArrayToArray

fn eval<'a>( &'a self, datums: &[Datum<'a>], temp_storage: &'a RowArena, a: &'a MirScalarExpr, ) -> Result<Datum<'a>, EvalError>

fn output_type(&self, _input_type: ColumnType) -> ColumnType

The output ColumnType of this function.

fn propagates_nulls(&self) -> bool

Whether this function will produce NULL on NULL input.

fn introduces_nulls(&self) -> bool

Whether this function will produce NULL on non-NULL input.

fn preserves_uniqueness(&self) -> bool

Whether this function preserves uniqueness.

fn inverse(&self) -> Option<UnaryFunc>

The inverse of this function, if it has one and we have determined it.

fn is_monotone(&self) -> bool

Returns true if the function is monotone. (Non-strict; either increasing or decreasing.) Monotone functions map ranges to ranges: ie. given a range of possible inputs, we can determine the range of possible outputs just by mapping the endpoints.

fn could_error(&self) -> bool

Whether this function might error on non-error input.

impl MzReflect for CastArrayToArray

fn add_to_reflected_type_info(rti: &mut ReflectedTypeInfo)

Adds names and types of the fields of the struct or enum to rti.

impl Ord for CastArrayToArray

fn cmp(&self, other: &CastArrayToArray) -> 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 + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for CastArrayToArray

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

fn partial_cmp(&self, other: &CastArrayToArray) -> 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 CastArrayToArray

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 CastArrayToArray

impl StructuralPartialEq for CastArrayToArray