Struct IndentVisitor 

pub struct IndentVisitor<'a, 'b> {
    f: &'a mut Formatter<'b>,
    with_schema: bool,
    indent: usize,
}

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

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

Fields

f: &'a mut Formatter<'b>

with_schema: bool

indent: usize

Implementations

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

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

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> TreeNodeVisitor<'n> for IndentVisitor<'_, '_>

type Node = LogicalPlan

The node type which is visitable.

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

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, DataFusionError>

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