Enum DatumColumnDecoder

Source

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§

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Array

Fields

§dim_offsets: OffsetBuffer<i32>

§dims: FixedSizeBinaryArray

§val_offsets: OffsetBuffer<i32>

§vals: Box<DatumColumnDecoder>

§nulls: Option<NullBuffer>

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List

Fields

§offsets: OffsetBuffer<i32>

§values: Box<DatumColumnDecoder>

§nulls: Option<NullBuffer>

§

Map

Fields

§offsets: OffsetBuffer<i32>

§keys: StringArray

§vals: Box<DatumColumnDecoder>

§nulls: Option<NullBuffer>

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RecordEmpty(BooleanArray)

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Record

Fields

§fields: Vec<Box<DatumColumnDecoder>>

§nulls: Option<NullBuffer>

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Range(BinaryArray)

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MzAclItem(BinaryArray)

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AclItem(FixedSizeBinaryArray)

Implementations§

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impl DatumColumnDecoder

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

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fn stats(&self) -> ColumnStatKinds

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fn goodbytes(&self) -> usize

Trait Implementations§

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impl Debug for DatumColumnDecoder

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for DatumColumnDecoder

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impl RefUnwindSafe for DatumColumnDecoder

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impl Send for DatumColumnDecoder

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impl Sync for DatumColumnDecoder

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impl Unpin for DatumColumnDecoder

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impl UnwindSafe for DatumColumnDecoder

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Enum DatumColumnDecoderCopy item path

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

List

Fields

Map

Fields

RecordEmpty(BooleanArray)

Record

Fields

Range(BinaryArray)

MzAclItem(BinaryArray)

AclItem(FixedSizeBinaryArray)

Implementations§

impl DatumColumnDecoder

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

fn stats(&self) -> ColumnStatKinds

fn goodbytes(&self) -> usize

Trait Implementations§

impl Debug for DatumColumnDecoder

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

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 Twhere T: 'static + ?Sized,

fn type_id(&self) -> TypeId

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

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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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Enum DatumColumnDecoder

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

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where T: ?Sized,

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where T: ?Sized,

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