Struct SourceHead 

pub struct SourceHead {
    pub run_rows: Option<u64>,
    pub rows_cum: Option<u64>,
    pub committed_at: Option<i64>,
}

Persisted source accounting at the applied cursor. Portable bases carry this so lag/change-count stamps resume from restored history instead of zero.

Fields

run_rows: Option<u64>

rows_cum: Option<u64>

committed_at: Option<i64>

Trait Implementations

impl Clone for SourceHead

fn clone(&self) -> SourceHead

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SourceHead

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

Formats the value using the given formatter.

impl Default for SourceHead

fn default() -> SourceHead

Returns the “default value” for a type.

impl PartialEq for SourceHead

fn eq(&self, other: &SourceHead) -> 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 Copy for SourceHead

impl Eq for SourceHead

impl StructuralPartialEq for SourceHead