Struct FilterNode 

pub struct FilterNode { /* private fields */ }

Filter operator: passes through only rows satisfying the predicate.

Filter(predicate)
  └── input

Implementations

impl FilterNode

pub fn new(input: Box<dyn PlanNode>, predicate: Expr) -> Self

Trait Implementations

impl PlanNode for FilterNode

fn schema(&self) -> &Schema

Schema of rows produced by this node.

fn next(&mut self) -> Result<Option<Row>>

Return the next row, or None when exhausted.

fn reset(&mut self) -> Result<()>

Reset the operator for re-execution (e.g., inner side of nested loop join).

fn collect_all(&mut self) -> Result<Vec<Row>>

Collect all remaining rows (convenience method).