Struct RowRef

pub struct RowRef<'a> {
    columns: &'a [Arc<ArrayImpl>],
    idx: usize,
}

Fields

columns: &'a [Arc<ArrayImpl>]

idx: usize

Implementations

impl<'a> RowRef<'a>

pub fn new(chunk: &'a DataChunk, idx: usize) -> RowRef<'a>

pub fn with_columns(columns: &'a [Arc<ArrayImpl>], idx: usize) -> RowRef<'a>

pub fn index(&self) -> usize

Get the index of this row in the data chunk.

Trait Implementations

impl<'a> Clone for RowRef<'a>

fn clone(&self) -> RowRef<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for RowRef<'_>

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

Formats the value using the given formatter.

impl Hash for RowRef<'_>

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for RowRef<'_>

fn eq(&self, other: &RowRef<'_>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Row for RowRef<'_>

fn datum_at(&self, index: usize) -> Option<ScalarRefImpl<'_>>

Returns the DatumRef at the given index.

unsafe fn datum_at_unchecked(&self, index: usize) -> Option<ScalarRefImpl<'_>>

Returns the DatumRef at the given index without bounds checking.

fn len(&self) -> usize

Returns the number of datum in the row.

fn iter(&self) -> impl ExactSizeIterator

Returns an iterator over the datums in the row, in DatumRef form.

fn is_empty(&self) -> bool

Returns true if the row contains no datum.

fn to_owned_row(&self) -> OwnedRow

Converts the row into an OwnedRow.

fn into_owned_row(self) -> OwnedRow

Consumes self and converts it into an OwnedRow.

fn value_serialize_into(&self, buf: impl BufMut)

Serializes the row with value encoding, into the given buf.

fn value_serialize(&self) -> Vec<u8>

Serializes the row with value encoding and returns the bytes.

fn value_serialize_bytes(&self) -> Bytes

Serializes the row with value encoding and returns the bytes.

fn value_estimate_size(&self) -> usize

fn memcmp_serialize_into(&self, serde: &OrderedRowSerde, buf: impl BufMut)

Serializes the row with memcomparable encoding, into the given buf. As each datum may have different order type, a serde should be provided.

fn memcmp_serialize(&self, serde: &OrderedRowSerde) -> Vec<u8>

Serializes the row with memcomparable encoding and return the bytes. As each datum may have different order type, a serde should be provided.

fn hash_datums_into<H>(&self, state: &mut H)

where H: Hasher,

Hash the datums of this row into the given hasher.

fn hash<H>(&self, hash_builder: H) -> HashCode<H>

where H: BuildHasher,

Returns the hash code of the row.

fn eq(this: &Self, other: impl Row) -> bool

Determines whether the datums of this row are equal to those of another.

impl<'a> Copy for RowRef<'a>

impl Eq for RowRef<'_>