datafusion_expr::logical_plan::display

Struct IndentVisitor

Source
pub struct IndentVisitor<'a, 'b> { /* private fields */ }
Expand description

Formats plans with a single line per node. For example:

Projection: id Filter: state Eq Utf8("CO")
CsvScan: employee.csv projection=Some([0, 3])“;

Implementations§

Source§

impl<'a, 'b> IndentVisitor<'a, 'b>

Source

pub fn new(f: &'a mut Formatter<'b>, with_schema: bool) -> Self

Create a visitor that will write a formatted LogicalPlan to f. If with_schema is true, includes schema information on each line.

Trait Implementations§

Source§

impl<'n, 'a, 'b> TreeNodeVisitor<'n> for IndentVisitor<'a, 'b>

Source§

type Node = LogicalPlan

The node type which is visitable.
Source§

fn f_down(&mut self, plan: &'n LogicalPlan) -> Result<TreeNodeRecursion>

Invoked while traversing down the tree, before any children are visited. Default implementation continues the recursion.
Source§

fn f_up(&mut self, _plan: &'n LogicalPlan) -> Result<TreeNodeRecursion>

Invoked while traversing up the tree after children are visited. Default implementation continues the recursion.

Auto Trait Implementations§

§

impl<'a, 'b> Freeze for IndentVisitor<'a, 'b>

§

impl<'a, 'b> !RefUnwindSafe for IndentVisitor<'a, 'b>

§

impl<'a, 'b> !Send for IndentVisitor<'a, 'b>

§

impl<'a, 'b> !Sync for IndentVisitor<'a, 'b>

§

impl<'a, 'b> Unpin for IndentVisitor<'a, 'b>

§

impl<'a, 'b> !UnwindSafe for IndentVisitor<'a, 'b>

Blanket Implementations§

Source§

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

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

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

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

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

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

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

Source§

impl<T> IntoEither for T

Source§

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
Source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

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

Performs the conversion.