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Builder

polars_io::csv::read::builder

Enum Builder 

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pub enum Builder {

Show 24 variants    Boolean(BooleanChunkedBuilder),
    Int8(PrimitiveChunkedBuilder<Int8Type>),
    Int16(PrimitiveChunkedBuilder<Int16Type>),
    Int32(PrimitiveChunkedBuilder<Int32Type>),
    Int64(PrimitiveChunkedBuilder<Int64Type>),
    Int128(PrimitiveChunkedBuilder<Int128Type>),
    UInt8(PrimitiveChunkedBuilder<UInt8Type>),
    UInt16(PrimitiveChunkedBuilder<UInt16Type>),
    UInt32(PrimitiveChunkedBuilder<UInt32Type>),
    UInt64(PrimitiveChunkedBuilder<UInt64Type>),
    UInt128(PrimitiveChunkedBuilder<UInt128Type>),
    Float16(PrimitiveChunkedBuilder<Float16Type>),
    Float32(PrimitiveChunkedBuilder<Float32Type>),
    Float64(PrimitiveChunkedBuilder<Float64Type>),
    Decimal(DecimalField),
    Utf8(Utf8Field),
    Datetime {
        buf: DatetimeField<Int64Type>,
        time_unit: TimeUnit,
        time_zone: Option<TimeZone>,
    },
    Date(DatetimeField<Int32Type>),
    Categorical8(CategoricalField<Categorical8Type>),
    Categorical16(CategoricalField<Categorical16Type>),
    Categorical32(CategoricalField<Categorical32Type>),
    DecimalFloat16(PrimitiveChunkedBuilder<Float16Type>, Vec<u8>),
    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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Int128(PrimitiveChunkedBuilder<Int128Type>)

Available on crate feature dtype-i128 only.
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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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UInt128(PrimitiveChunkedBuilder<UInt128Type>)

Available on crate feature dtype-u128 only.
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Float16(PrimitiveChunkedBuilder<Float16Type>)

Available on crate feature dtype-f16 only.
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Float32(PrimitiveChunkedBuilder<Float32Type>)

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Float64(PrimitiveChunkedBuilder<Float64Type>)

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Decimal(DecimalField)

Available on crate feature dtype-decimal only.
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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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Categorical8(CategoricalField<Categorical8Type>)

Available on crate feature dtype-categorical only.
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Categorical16(CategoricalField<Categorical16Type>)

Available on crate feature dtype-categorical only.
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Categorical32(CategoricalField<Categorical32Type>)

Available on crate feature dtype-categorical only.
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DecimalFloat16(PrimitiveChunkedBuilder<Float16Type>, Vec<u8>)

Available on crate feature dtype-f16 only.
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DecimalFloat32(PrimitiveChunkedBuilder<Float32Type>, Vec<u8>)

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

Implementations§

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impl Builder

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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<()>

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Calls U::from(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

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Initializes a with the given initializer. Read more
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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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where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
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