Struct ColumnarBatch 

pub struct ColumnarBatch { /* private fields */ }

Column-oriented transfer batch. Physical operators may remain row-oriented internally; API consumers can process one bounded batch without retaining the complete result set or rebuilding columns themselves.

Implementations

impl ColumnarBatch

pub fn from_batch(schema: &[String], batch: Batch) -> Self

Convert a positional physical batch without crossing the legacy map-backed row boundary. Repeated output labels are matched to repeated logical schema positions in order, so differently-valued duplicate columns remain distinct for wire and cursor consumers.

pub fn from_rows(schema: &[String], rows: Vec<ResultRow>) -> Self

Move map-backed rows into positional columns. A missing projected value has SQL NULL semantics.

pub fn schema(&self) -> RowSchema

pub fn columns(&self) -> &[ColumnVector]

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn into_positional_rows(self) -> Vec<Vec<Value>>

Convert the column vectors to row-major positional values without passing through a name-keyed map.

pub fn into_rows(self) -> Vec<ResultRow>

Convert back to the legacy named-row representation. Duplicate output labels necessarily collapse because ResultRow is a map.

Trait Implementations

impl Clone for ColumnarBatch

fn clone(&self) -> ColumnarBatch

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ColumnarBatch

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for ColumnarBatch

fn eq(&self, other: &ColumnarBatch) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ColumnarBatch