Enum Dialect 

pub enum Dialect {
    Postgres,
    MySql,
    Sqlite,
}

SQL dialect differences absorbed by the backend stores.

A Dialect knows how to render the four statements the outbox needs (poll, mark-delivered, mark-failed, insert) and the canonical schema DDL for its engine, accounting for placeholder style, row locking, the “current instant” expression and per-engine column types.

Variants

Postgres

PostgreSQL (sqlx::Postgres).

MySql

MySQL 8.0+ (sqlx::MySql).

Sqlite

SQLite (sqlx::Sqlite).

Implementations

impl Dialect

pub fn supports_skip_locked(self) -> bool

Whether competing-consumers row skip-locking is available.

true for PostgreSQL and MySQL 8.0+, false for SQLite (which serializes writes through a single writer instead).

pub fn schema_ddl(self, table: &str) -> Result<String, OutboxError>

Canonical schema DDL (table + indexes) rendered for this dialect.

Errors

Returns OutboxError::Internal if table is not a valid identifier matching ^[a-zA-Z_][a-zA-Z0-9_]*$.

Trait Implementations

impl Clone for Dialect

fn clone(&self) -> Dialect

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Dialect

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

Formats the value using the given formatter.

impl PartialEq for Dialect

fn eq(&self, other: &Dialect) -> 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 Dialect

impl Eq for Dialect

impl StructuralPartialEq for Dialect