Struct Changeset 

pub struct Changeset;

Byte-transform entry points for changesets: Changeset::invert and Changeset::concat, mirroring SQLite’s sqlite3changeset_invert and sqlite3changeset_concat. This is a zero-sized namespace type — the transforms need no database state.

Implementations

impl Changeset

pub fn invert(changeset: &[u8]) -> Result<Vec<u8>>

Return the inverse of changeset: applying the inverse undoes applying the original. Mirrors sqlite3changeset_invert — INSERT↔DELETE, and an UPDATE’s old and new values are swapped (primary-key columns unchanged); table headers pass through.

Errors

crate::error::Error::Corrupt if changeset is malformed.

pub fn concat(a: &[u8], b: &[u8]) -> Result<Vec<u8>>

Concatenate two changesets into one whose effect equals applying a then b. Mirrors sqlite3changeset_concat: per-table, per-row changes are coalesced exactly as an in-memory change-group would.

Errors

crate::error::Error::Corrupt if either input is malformed or they disagree on a table’s shape.

Trait Implementations

impl Clone for Changeset

fn clone(&self) -> Changeset

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Changeset

impl Debug for Changeset

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

Formats the value using the given formatter.