Struct datafusion_expr::logical_plan::display::IndentVisitor

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

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

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

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

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

type Node = LogicalPlan

The node type which is visitable.

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.

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.