Struct Expr 

pub struct Expr { /* private fields */ }

A WHERE-clause expression tree; render with Expr::to_sql_fragment_for.

Implementations

impl Expr

pub fn raw(sql: impl Into<String>, params: Vec<Value>) -> Self

pub fn json_extract<T>(col: &Column<T>, path: &str) -> JsonExpr

pub fn and(self, other: Expr) -> Expr

pub fn or(self, other: Expr) -> Expr

pub fn to_sql_fragment_for( &self, start: usize, dialect: Dialect, ) -> (String, Vec<Value>)

Generate SQL fragment with dialect-specific positional parameters starting at start. Returns (sql_string, params_vec).

pub fn to_sql_fragment(&self, start: usize) -> (String, Vec<Value>)

Generate SQL fragment with positional parameters starting at start. Uses the compile-time selected dialect. Returns (sql_string, params_vec).