Struct BatchRow 

pub struct BatchRow { /* private fields */ }

A row with pre-computed offsets for fast multi-column batch access.

Pre-computes all column offsets once (O(n) total), making subsequent column access O(1). Best for accessing many columns from each row.

Example

let mut stream = client.query_streaming("SELECT * FROM events", 1000)?;
while let Some(chunk) = stream.next_chunk()? {
    for row in chunk {
        let batch = BatchRow::from_stream(row); // Pre-compute all offsets
        let id = batch.get_i32(0);
        let sensor = batch.get_i32(1);
        let value = batch.get_f64(2);
        let ts = batch.get_i64(3);
    }
}

Implementations

impl BatchRow

pub fn new(data: DataRowBody) -> Self

Creates a BatchRow from a DataRowBody.

pub fn from_stream(row: StreamRow) -> Self

Creates a BatchRow from a StreamRow.

pub fn column_count(&self) -> usize

Returns the number of columns.

pub fn get_bytes(&self, idx: usize) -> Option<&[u8]>

Gets raw bytes for a column (O(1) access).

pub fn is_null(&self, idx: usize) -> bool

Returns true if the column is NULL (O(1) access).

pub fn get_i16(&self, idx: usize) -> Option<i16>

Gets an i16 value.

pub fn get_i32(&self, idx: usize) -> Option<i32>

Gets an i32 value.

pub fn get_i64(&self, idx: usize) -> Option<i64>

Gets an i64 value.

pub fn get_f32(&self, idx: usize) -> Option<f32>

Gets an f32 value.

pub fn get_f64(&self, idx: usize) -> Option<f64>

Gets an f64 value.

pub fn get_bool(&self, idx: usize) -> Option<bool>

Gets a bool value.

pub fn get_string(&self, idx: usize) -> Option<String>

Gets a String value.

pub fn get<T: FromBinaryValue>(&self, idx: usize) -> Option<T>

Generic typed getter with automatic type coercion.

Supports widening conversions (i16 → i32 → i64, f32 → f64).

Trait Implementations

impl Debug for BatchRow

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

Formats the value using the given formatter.