Struct ValuesIterator 

pub struct ValuesIterator { /* private fields */ }

Streaming iterator for a type-checked VALUES relation.

Implementations

impl ValuesIterator

pub fn new( rows: Vec<Vec<TypedExpr>>, schema: Vec<ColumnMetadata>, outer: Option<&Row>, ) -> Self

Creates a VALUES iterator without materializing every evaluated row.

Correlated VALUES subqueries evaluate column references against a copy of the current outer row. Top-level VALUES queries use an empty context.

Trait Implementations

impl RowIterator for ValuesIterator

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

Advances the iterator and returns the next row, or None if exhausted.

fn schema(&self) -> &[ColumnMetadata]

Returns the schema of rows produced by this iterator.