Struct PyProjection 

pub struct PyProjection {
    pub projection: Projection,
}

Fields

projection: Projection

Implementations

impl PyProjection

pub fn new(projection: Projection) -> Self

impl PyProjection

pub fn projected_expressions(local_expr: &PyExpr) -> Vec<PyExpr>

Projection: Gets the names of the fields that should be projected

Trait Implementations

impl Clone for PyProjection

fn clone(&self) -> PyProjection

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl DerefToPyAny for PyProjection

impl Display for PyProjection

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

Formats the value using the given formatter.

impl From<Projection> for PyProjection

fn from(projection: Projection) -> PyProjection

Converts to this type from the input type.

impl From<PyProjection> for Projection

fn from(proj: PyProjection) -> Self

Converts to this type from the input type.

impl<'a, 'py> FromPyObject<'a, 'py> for PyProjection

where Self: Clone,

type Error = PyClassGuardError<'a, 'py>

The type returned in the event of a conversion error.

fn extract( obj: Borrowed<'a, 'py, PyAny>, ) -> Result<Self, <Self as FromPyObject<'a, 'py>>::Error>

Extracts Self from the bound smart pointer obj.

impl<'py> IntoPyObject<'py> for PyProjection

type Target = PyProjection

The Python output type

type Output = Bound<'py, <PyProjection as IntoPyObject<'py>>::Target>

The smart pointer type to use.

type Error = PyErr

The type returned in the event of a conversion error.

fn into_pyobject( self, py: Python<'py>, ) -> Result<<Self as IntoPyObject<'_>>::Output, <Self as IntoPyObject<'_>>::Error>

Performs the conversion.

impl LogicalNode for PyProjection

fn inputs(&self) -> Vec<PyLogicalPlan>

The input plan to the current logical node instance.

fn to_variant<'py>(&self, py: Python<'py>) -> PyResult<Bound<'py, PyAny>>

impl PyClass for PyProjection

const NAME: &str = "Projection"

Name of the class.

type Frozen = True

Whether the pyclass is frozen.

impl PyClassBaseType for PyProjection

type LayoutAsBase = <PyProjection as PyClassImpl>::Layout

type BaseNativeType = <PyProjection as PyClassImpl>::BaseNativeType

type Initializer = PyClassInitializer<PyProjection>

type PyClassMutability = <PyProjection as PyClassImpl>::PyClassMutability

type Layout<T: PyClassImpl> = <<PyProjection as PyClassBaseType>::BaseNativeType as PyClassBaseType>::Layout<T>

The type of object layout to use for ancestors or descendants of this type.

impl PyClassImpl for PyProjection

const MODULE: Option<&str>

Module which the class will be associated with.

const IS_BASETYPE: bool = true

#[pyclass(subclass)]

const IS_SUBCLASS: bool = false

#[pyclass(extends=…)]

const IS_MAPPING: bool = false

#[pyclass(mapping)]

const IS_SEQUENCE: bool = false

#[pyclass(sequence)]

const IS_IMMUTABLE_TYPE: bool = false

#[pyclass(immutable_type)]

const RAW_DOC: &'static CStr = c"\x00"

Docstring for the class provided on the struct or enum.

const DOC: &'static CStr

Fully rendered class doc, including the text_signature if a constructor is defined.

type Layout = <<PyProjection as PyClassImpl>::BaseNativeType as PyClassBaseType>::Layout<PyProjection>

Description of how this class is laid out in memory

type BaseType = PyAny

Base class

type ThreadChecker = NoopThreadChecker

This handles following two situations:

type PyClassMutability = <<PyAny as PyClassBaseType>::PyClassMutability as PyClassMutability>::ImmutableChild

Immutable or mutable

type Dict = PyClassDummySlot

Specify this class has #[pyclass(dict)] or not.

type WeakRef = PyClassDummySlot

Specify this class has #[pyclass(weakref)] or not.

type BaseNativeType = PyAny

The closest native ancestor. This is PyAny by default, and when you declare #[pyclass(extends=PyDict)], it’s PyDict.

fn items_iter() -> PyClassItemsIter

fn lazy_type_object() -> &'static LazyTypeObject<Self>

fn dict_offset() -> Option<PyObjectOffset>

Used to provide the dictoffset slot (equivalent to tp_dictoffset)

fn weaklist_offset() -> Option<PyObjectOffset>

Used to provide the weaklistoffset slot (equivalent to tp_weaklistoffset

impl PyMethods<PyProjection> for PyClassImplCollector<PyProjection>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for PyProjection

const NAME: &str = <Self as ::pyo3::PyClass>::NAME

👎Deprecated since 0.28.0:

prefer using ::type_object(py).name() to get the correct runtime value

Class name.

const MODULE: Option<&str> = <Self as ::pyo3::impl_::pyclass::PyClassImpl>::MODULE

👎Deprecated since 0.28.0:

prefer using ::type_object(py).module() to get the correct runtime value

Module name, if any.

fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject

Returns the PyTypeObject instance for this type.

fn type_object(py: Python<'_>) -> Bound<'_, PyType>

Returns the safe abstraction over the type object.

fn is_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type or a subclass of this type.

fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type.