Enum mz_repr::row::encode::DatumColumnDecoder

enum DatumColumnDecoder {
Show 29 variants
    Bool(BooleanArray),
    U8(UInt8Array),
    U16(UInt16Array),
    U32(UInt32Array),
    U64(UInt64Array),
    I16(Int16Array),
    I32(Int32Array),
    I64(Int64Array),
    F32(Float32Array),
    F64(Float64Array),
    Numeric(BinaryArray),
    Bytes(BinaryArray),
    String(StringArray),
    Date(Int32Array),
    Time(FixedSizeBinaryArray),
    Timestamp(FixedSizeBinaryArray),
    TimestampTz(FixedSizeBinaryArray),
    MzTimestamp(UInt64Array),
    Interval(FixedSizeBinaryArray),
    Uuid(FixedSizeBinaryArray),
    Json(StringArray),
    Array {
        dim_offsets: OffsetBuffer<i32>,
        dims: FixedSizeBinaryArray,
        val_offsets: OffsetBuffer<i32>,
        vals: Box<DatumColumnDecoder>,
        nulls: Option<NullBuffer>,
    },
    List {
        offsets: OffsetBuffer<i32>,
        values: Box<DatumColumnDecoder>,
        nulls: Option<NullBuffer>,
    },
    Map {
        offsets: OffsetBuffer<i32>,
        keys: StringArray,
        vals: Box<DatumColumnDecoder>,
        nulls: Option<NullBuffer>,
    },
    RecordEmpty(BooleanArray),
    Record {
        fields: Vec<Box<DatumColumnDecoder>>,
        nulls: Option<NullBuffer>,
    },
    Range(BinaryArray),
    MzAclItem(BinaryArray),
    AclItem(FixedSizeBinaryArray),
}

Expand description

A decoder for a column of Datums.

Note: We specifically structure the decoder as an enum instead of using trait objects because Datum decoding is an extremely hot path and downcasting objects is relatively slow.

Variants§

Bool(BooleanArray)

U8(UInt8Array)

U16(UInt16Array)

U32(UInt32Array)

U64(UInt64Array)

I16(Int16Array)

I32(Int32Array)

I64(Int64Array)

F32(Float32Array)

F64(Float64Array)

Numeric(BinaryArray)

Bytes(BinaryArray)

String(StringArray)

Date(Int32Array)

Time(FixedSizeBinaryArray)

Timestamp(FixedSizeBinaryArray)

TimestampTz(FixedSizeBinaryArray)

MzTimestamp(UInt64Array)

Interval(FixedSizeBinaryArray)

Uuid(FixedSizeBinaryArray)

Json(StringArray)

Array

Fields

§dim_offsets: OffsetBuffer<i32>

§dims: FixedSizeBinaryArray

§val_offsets: OffsetBuffer<i32>

§vals: Box<DatumColumnDecoder>

§nulls: Option<NullBuffer>

List

Fields

§offsets: OffsetBuffer<i32>

§values: Box<DatumColumnDecoder>

§nulls: Option<NullBuffer>

Map

Fields

§offsets: OffsetBuffer<i32>

§keys: StringArray

§vals: Box<DatumColumnDecoder>

§nulls: Option<NullBuffer>

RecordEmpty(BooleanArray)

Record

Fields

§fields: Vec<Box<DatumColumnDecoder>>

§nulls: Option<NullBuffer>

Range(BinaryArray)

MzAclItem(BinaryArray)

AclItem(FixedSizeBinaryArray)

Implementations§

impl DatumColumnDecoder

fn get<'a>(&'a self, idx: usize, packer: &'a mut RowPacker<'_>)

fn stats(&self) -> ColumnStatKinds

Trait Implementations§

impl Debug for DatumColumnDecoder

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl Freeze for DatumColumnDecoder

impl RefUnwindSafe for DatumColumnDecoder

impl Send for DatumColumnDecoder

impl Sync for DatumColumnDecoder

impl Unpin for DatumColumnDecoder

impl UnwindSafe for DatumColumnDecoder

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T, U> CastInto<U> for T
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fn cast_into(self) -> U

Performs the cast.

impl<T> CopyAs<T> for T

fn copy_as(self) -> T

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Returns the argument unchanged.

impl<T> FutureExt for T

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Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Override the configuration represented by Self with values from the given layer.

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const ALIGN: usize = _

The alignment of pointer.

type Init = T

The type for initializers.

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

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Drops the object pointed to by the given pointer. Read more

impl<P, R> ProtoType<R> for P
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fn into_rust(self) -> Result<R, TryFromProtoError>

See RustType::from_proto.

fn from_rust(rust: &R) -> P

See RustType::into_proto.

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type Output = T

Should always be Self

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fn plus_equals(&mut self, rhs: &&'a S)

The method of std::ops::AddAssign, for types that do not implement AddAssign.

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where U: Into<T>,

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The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

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impl<V, T> VZip<V> for T
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fn vzip(self) -> V

impl<T> WithSubscriber for T

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