Enum Coverage 

pub enum Coverage {
    SharedOffsetBitmap(Vec<u8>),
    FieldCoverage(FieldCoverage),
}

Which (offset, field) cells this overlay provides values for.

Variants

SharedOffsetBitmap(Vec<u8>)

A single 32-bit Roaring bitmap of physical row offsets that applies to every field in data_file.fields (a “dense” / rectangular overlay). Every covered offset has a value for every field. This is the common case for a plain UPDATE, where one SET list is applied to one set of rows.

FieldCoverage(FieldCoverage)

Per-field coverage for a “sparse” overlay, used when different fields cover different offset sets (e.g. a MERGE with multiple WHEN MATCHED branches).

Implementations

impl Coverage

pub fn encode(&self, buf: &mut impl BufMut)

Encodes the message to a buffer.

pub fn merge( field: &mut Option<Coverage>, tag: u32, wire_type: WireType, buf: &mut impl Buf, ctx: DecodeContext, ) -> Result<(), DecodeError>

Decodes an instance of the message from a buffer, and merges it into self.

pub fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

Trait Implementations

impl Clone for Coverage

fn clone(&self) -> Coverage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Coverage

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

Formats the value using the given formatter.

impl Eq for Coverage

impl Hash for Coverage

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

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 Coverage

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Coverage