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

type N = LogicalPlan

The node type which is visitable.

fn pre_visit(&mut self, plan: &LogicalPlan) -> Result<VisitRecursion>

Invoked before any children of node are visited.

fn post_visit(&mut self, _plan: &LogicalPlan) -> Result<VisitRecursion>

Invoked after all children of node are visited. Default implementation does nothing.