Enum mz_expr::relation::func::TableFunc

pub enum TableFunc {
    JsonbEach {
        stringify: bool,
    },
    JsonbObjectKeys,
    JsonbArrayElements {
        stringify: bool,
    },
    RegexpExtract(AnalyzedRegex),
    CsvExtract(usize),
    GenerateSeriesInt32,
    GenerateSeriesInt64,
    GenerateSeriesTimestamp,
    GenerateSeriesTimestampTz,
    Repeat,
    UnnestArray {
        el_typ: ScalarType,
    },
    UnnestList {
        el_typ: ScalarType,
    },
    Wrap {
        types: Vec<ColumnType>,
        width: usize,
    },
    GenerateSubscriptsArray,
}

Variants

JsonbEach

Fields

stringify: bool

JsonbObjectKeys

JsonbArrayElements

Fields

stringify: bool

RegexpExtract(AnalyzedRegex)

CsvExtract(usize)

GenerateSeriesInt32

GenerateSeriesInt64

GenerateSeriesTimestamp

GenerateSeriesTimestampTz

Repeat

UnnestArray

Fields

el_typ: ScalarType

UnnestList

Fields

el_typ: ScalarType

Wrap

Fields

types: Vec<ColumnType>

width: usize

Given n input expressions, wraps them into n / width rows, each of width columns.

This function is not intended to be called directly by end users, but is useful in the planning of e.g. VALUES clauses.

GenerateSubscriptsArray

Implementations

impl TableFunc

pub fn eval<'a>(
    &'a self,
    datums: &'a [Datum<'a>],
    temp_storage: &'a RowArena
) -> Result<Box<dyn Iterator<Item = (Row, Diff)> + 'a>, EvalError>

pub fn output_type(&self) -> RelationType

pub fn output_arity(&self) -> usize

pub fn empty_on_null_input(&self) -> bool

pub fn preserves_monotonicity(&self) -> bool

True iff the table function preserves the append-only property of its input.

Trait Implementations

impl Arbitrary for TableFunc

type Parameters = (<bool as Arbitrary>::Parameters, <bool as Arbitrary>::Parameters, <AnalyzedRegex as Arbitrary>::Parameters, <usize as Arbitrary>::Parameters, <ScalarType as Arbitrary>::Parameters, <ScalarType as Arbitrary>::Parameters, (<Vec<ColumnType, Global> as Arbitrary>::Parameters, <usize as Arbitrary>::Parameters))

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

type Strategy = Union<BoxedStrategy<TableFunc>>

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 TableFunc

fn clone(&self) -> TableFunc

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TableFunc

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TableFunc

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
    __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for TableFunc

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

Formats the value using the given formatter.

impl Hash for TableFunc

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 MzReflect for TableFunc

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 TableFunc

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere
    Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<TableFunc> for TableFunc

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

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl RustType<ProtoTableFunc> for TableFunc

fn into_proto(&self) -> ProtoTableFunc

Convert a Self into a Proto value.

fn from_proto(proto: ProtoTableFunc) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

impl Serialize for TableFunc

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 TableFunc

impl StructuralEq for TableFunc

impl StructuralPartialEq for TableFunc