datafusion_python::datafusion_expr

Struct ScalarFunctionArgs

pub struct ScalarFunctionArgs {
    pub args: Vec<ColumnarValue>,
    pub arg_fields: Vec<Arc<Field>>,
    pub number_rows: usize,
    pub return_field: Arc<Field>,
}

Expand description

Arguments passed to ScalarUDFImpl::invoke_with_args when invoking a scalar function.

Fields§

§args: Vec<ColumnarValue>

The evaluated arguments to the function

§arg_fields: Vec<Arc<Field>>

Field associated with each arg, if it exists

§number_rows: usize

The number of rows in record batch being evaluated

§return_field: Arc<Field>

The return field of the scalar function returned (from return_type or return_field_from_args) when creating the physical expression from the logical expression

Implementations§

impl ScalarFunctionArgs

pub fn return_type(&self) -> &DataType

The return type of the function. See Self::return_field for more details.

Auto Trait Implementations§

impl Freeze for ScalarFunctionArgs

impl !RefUnwindSafe for ScalarFunctionArgs

impl Send for ScalarFunctionArgs

impl Sync for ScalarFunctionArgs

impl Unpin for ScalarFunctionArgs

impl !UnwindSafe for ScalarFunctionArgs

Blanket Implementations§

impl<T> AlignerFor<1> for T

type Aligner = AlignTo1<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<1024> for T

type Aligner = AlignTo1024<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<128> for T

type Aligner = AlignTo128<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<16> for T

type Aligner = AlignTo16<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<16384> for T

type Aligner = AlignTo16384<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<2> for T

type Aligner = AlignTo2<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<2048> for T

type Aligner = AlignTo2048<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<256> for T

type Aligner = AlignTo256<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<32> for T

type Aligner = AlignTo32<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<32768> for T

type Aligner = AlignTo32768<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<4> for T

type Aligner = AlignTo4<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<4096> for T

type Aligner = AlignTo4096<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<512> for T

type Aligner = AlignTo512<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<64> for T

type Aligner = AlignTo64<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<8> for T

type Aligner = AlignTo8<T>

The AlignTo* type which aligns Self to ALIGNMENT.

impl<T> AlignerFor<8192> for T

type Aligner = AlignTo8192<T>

The AlignTo* type which aligns Self to ALIGNMENT.

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

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impl<S> ROExtAcc for S

fn f_get<F>(&self, offset: FieldOffset<S, F, Aligned>) -> &F

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fn f_get_mut<F>(&mut self, offset: FieldOffset<S, F, Aligned>) -> &mut F

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impl<S> ROExtOps<Aligned> for S

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Replaces a field (determined by offset) with value, returning the previous value of the field. Read more

fn f_swap<F>(&mut self, offset: FieldOffset<S, F, Aligned>, right: &mut S)

Swaps a field (determined by offset) with the same field in right. Read more

fn f_get_copy<F>(&self, offset: FieldOffset<S, F, Aligned>) -> F
where F: Copy,

Gets a copy of a field (determined by offset). The field is determined by offset. Read more

impl<S> ROExtOps<Unaligned> for S

fn f_replace<F>(&mut self, offset: FieldOffset<S, F, Unaligned>, value: F) -> F

Replaces a field (determined by offset) with value, returning the previous value of the field. Read more

fn f_swap<F>(&mut self, offset: FieldOffset<S, F, Unaligned>, right: &mut S)

Swaps a field (determined by offset) with the same field in right. Read more

fn f_get_copy<F>(&self, offset: FieldOffset<S, F, Unaligned>) -> F
where F: Copy,

Gets a copy of a field (determined by offset). The field is determined by offset. Read more

impl<T> Same for T

type Output = T

Should always be Self

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fn eq_id(&self, other: &Self) -> bool

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Emulates the pipeline operator, allowing method syntax in more places. Read more

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The same as piped except that the function takes &Self Useful for functions that take &Self instead of Self. Read more

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The same as piped, except that the function takes &mut Self. Useful for functions that take &mut Self instead of Self.

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Mutates self using a closure taking self by mutable reference, passing it along the method chain. Read more

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Observes the value of self, passing it along unmodified. Useful in long method chains. Read more

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unsafe fn transmute_element<T>(self) -> Self::TransmutedPtr
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Transmutes the element type of this pointer.. Read more

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The type returned in the event of a conversion error.

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Performs the conversion.

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Converts a value back to the original type.

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Converts a reference back to the original type.

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Converts a value back to the original type.

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Converts a reference back to the original type.

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Converts a mutable reference back to the original type.

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Converts a box back to the original type.

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Converts an Arc back to the original type.

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Converts an Rc back to the original type.

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