polars_io::csv::read::buffer

Enum Buffer

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pub enum Buffer {

Show 17 variants    Boolean(BooleanChunkedBuilder),
    Int8(PrimitiveChunkedBuilder<Int8Type>),
    Int16(PrimitiveChunkedBuilder<Int16Type>),
    Int32(PrimitiveChunkedBuilder<Int32Type>),
    Int64(PrimitiveChunkedBuilder<Int64Type>),
    UInt8(PrimitiveChunkedBuilder<UInt8Type>),
    UInt16(PrimitiveChunkedBuilder<UInt16Type>),
    UInt32(PrimitiveChunkedBuilder<UInt32Type>),
    UInt64(PrimitiveChunkedBuilder<UInt64Type>),
    Float32(PrimitiveChunkedBuilder<Float32Type>),
    Float64(PrimitiveChunkedBuilder<Float64Type>),
    Utf8(Utf8Field),
    Datetime {
        buf: DatetimeField<Int64Type>,
        time_unit: TimeUnit,
        time_zone: Option<TimeZone>,
    },
    Date(DatetimeField<Int32Type>),
    Categorical(CategoricalField),
    DecimalFloat32(PrimitiveChunkedBuilder<Float32Type>, Vec<u8>),
    DecimalFloat64(PrimitiveChunkedBuilder<Float64Type>, Vec<u8>),

}
Available on crate features csv or json only.

Variants§

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Boolean(BooleanChunkedBuilder)

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Int8(PrimitiveChunkedBuilder<Int8Type>)

Available on crate feature dtype-i8 only.
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Int16(PrimitiveChunkedBuilder<Int16Type>)

Available on crate feature dtype-i16 only.
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Int32(PrimitiveChunkedBuilder<Int32Type>)

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Int64(PrimitiveChunkedBuilder<Int64Type>)

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UInt8(PrimitiveChunkedBuilder<UInt8Type>)

Available on crate feature dtype-u8 only.
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UInt16(PrimitiveChunkedBuilder<UInt16Type>)

Available on crate feature dtype-u16 only.
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UInt32(PrimitiveChunkedBuilder<UInt32Type>)

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UInt64(PrimitiveChunkedBuilder<UInt64Type>)

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Float32(PrimitiveChunkedBuilder<Float32Type>)

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Float64(PrimitiveChunkedBuilder<Float64Type>)

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Utf8(Utf8Field)

Stores the Utf8 fields and the total string length seen for that column

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Datetime

Available on crate feature dtype-datetime only.

Fields

§buf: DatetimeField<Int64Type>
§time_unit: TimeUnit
§time_zone: Option<TimeZone>
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Date(DatetimeField<Int32Type>)

Available on crate feature dtype-date only.
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Categorical(CategoricalField)

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DecimalFloat32(PrimitiveChunkedBuilder<Float32Type>, Vec<u8>)

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DecimalFloat64(PrimitiveChunkedBuilder<Float64Type>, Vec<u8>)

Implementations§

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impl Buffer

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pub fn into_series(self) -> PolarsResult<Series>

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pub fn add_null(&mut self, valid: bool)

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pub fn dtype(&self) -> DataType

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pub fn add( &mut self, bytes: &[u8], ignore_errors: bool, needs_escaping: bool, missing_is_null: bool, ) -> PolarsResult<()>

Auto Trait Implementations§

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impl Freeze for Buffer

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impl !RefUnwindSafe for Buffer

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impl Send for Buffer

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impl Sync for Buffer

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impl Unpin for Buffer

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impl !UnwindSafe for Buffer

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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type Output = T

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type Error = Infallible

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Performs the conversion.
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type Error = <U as TryFrom<T>>::Error

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

Performs the conversion.
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fn vzip(self) -> V

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Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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