Struct NbcRow 

pub struct NbcRow {
    pub null_bitmap: Vec<u8>,
    pub data: Bytes,
}

Null bitmap compressed row.

Fields

null_bitmap: Vec<u8>

Null bitmap.

data: Bytes

Raw non-null column values.

Implementations

impl NbcRow

pub fn decode( src: &mut impl Buf, metadata: &ColMetaData, ) -> Result<Self, ProtocolError>

Decode an NBCROW token from bytes.

NBCROW (Null Bitmap Compressed Row) stores a bitmap indicating which columns are NULL, followed by only the non-NULL values.

pub fn decode_prefix( src: &mut impl Buf, metadata: &ColMetaData, prefix_len: usize, ) -> Result<Self, ProtocolError>

Decode the null bitmap and the first prefix_len columns of an NBCROW, leaving src positioned at column prefix_len’s value (when that column is non-NULL per the bitmap). The returned row carries the full bitmap and the leading non-NULL values; query the trailing column’s nullness with is_null.

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

Check if a column at the given index is NULL.

Trait Implementations

impl Clone for NbcRow

fn clone(&self) -> NbcRow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NbcRow

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

Formats the value using the given formatter.