Struct SavePoint 

pub struct SavePoint { /* private fields */ }

A savepoint within a transaction.

Savepoints allow partial rollbacks within a transaction. The savepoint name is validated when created to prevent SQL injection.

Example

let mut tx = client.begin_transaction().await?;

tx.execute("INSERT INTO orders (customer_id) VALUES (@p1)", &[&42]).await?;
let sp = tx.save_point("before_items").await?;

tx.execute("INSERT INTO items (order_id, product_id) VALUES (@p1, @p2)", &[&1, &100]).await?;

// Oops, need to undo the items but keep the order
tx.rollback_to(&sp).await?;

// Continue with different items...
tx.commit().await?;

Implementations

impl SavePoint

pub fn name(&self) -> &str

Get the savepoint name.

Trait Implementations

impl Clone for SavePoint

fn clone(&self) -> SavePoint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SavePoint

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

Formats the value using the given formatter.