Struct NotSql 

pub struct NotSql;

Inert dialect for engines that do not emit SQL (document stores such as MongoDB). Every helper returns an empty or identity value. Calling these methods is a bug — no SQL string built from this dialect would be valid against any real database. The driver’s own non-SQL operation path should never reach these helpers.

Trait Implementations

impl SqlDialect for NotSql

fn placeholder(&self, _i: usize) -> String

Emit the 1-indexed parameter placeholder for position i.

fn returning_clause(&self, _cols: &str) -> String

Emit the clause (leading space included) that requests the given columns be returned after an INSERT/UPDATE/DELETE. Postgres/SQLite/MySQL emit RETURNING cols; MSSQL emits OUTPUT INSERTED.cols.

fn quote_ident(&self, _ident: &str) -> String

Quote a table/column identifier for safe interpolation.

fn upsert_clause(&self, _c: &[&str], _s: &str) -> String

Emit the ON CONFLICT / ON DUPLICATE KEY clause (leading space included) that converts an INSERT into an upsert.

fn supports_distinct_on(&self) -> bool

Whether the dialect supports SELECT DISTINCT ON (cols) (Postgres-only among our backends today).

fn insert_has_returning(&self) -> bool

Whether an INSERT statement can use the dialect’s returning clause to retrieve inserted rows in-place.

fn begin_sql(&self) -> &'static str

SQL keyword that begins a transaction. Defaults to BEGIN.

fn commit_sql(&self) -> &'static str

SQL keyword that commits a transaction. Defaults to COMMIT.

fn rollback_sql(&self) -> &'static str

SQL keyword that rolls back a transaction. Defaults to ROLLBACK.