Struct SeqScanNode 

pub struct SeqScanNode { /* private fields */ }

Full sequential table scan operator.

Materializes all rows from StorageBackend::table_scan() on first call, then returns one row at a time via next().

Implementations

impl SeqScanNode

pub fn new( storage: Arc<dyn StorageBackend>, table: String, columns: Vec<String>, table_alias: Option<&str>, ) -> Self

Trait Implementations

impl PlanNode for SeqScanNode

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).