Struct SQLBackend 

pub struct SQLBackend {
    pub dialect: SQLDialect,
}

The SQL code generation backend.

Fields

dialect: SQLDialect

Implementations

impl SQLBackend

pub fn new(dialect: SQLDialect) -> Self

Create a new SQL backend for the given dialect.

pub fn emit_type(&self, ty: &SQLType) -> &str

Emit a SQL type keyword for the current dialect.

pub fn emit_expr(&self, expr: &SQLExpr) -> String

Emit a SQL expression as a string.

pub fn emit_stmt(&self, stmt: &SQLStmt) -> String

Emit a complete SQL statement.

pub fn create_table_stmt(&self, table: &SQLTable) -> String

Build a CREATE TABLE statement from a SQLTable.

pub fn schema_for_type(&self, type_name: &str) -> SQLTable

Produce a default table schema for a named OxiLean type.

pub fn select_all(&self, table: &str) -> String

Emit a simple SELECT * from a table.

pub fn select_limit(&self, table: &str, n: usize) -> String

Emit a SELECT with a LIMIT clause.

pub fn insert_placeholders(&self, table: &str, col_count: usize) -> String

Emit a parameterised INSERT placeholder list (dialect-aware).