Method expr

src/query/helper.rs:468–474

Add an expression to the select expression list. ``` use sea_orm::sea_query::Expr; use sea_orm::{entity::*, tests_cfg::cake, DbBackend, QuerySelect, QueryTrait}; assert_eq!( cake::Entity::find() .select_only() .expr(Expr::col((cake::Entity, cake::Column::Id))) .build(DbBackend::MySql) .to_string(), "SELECT `cake`.`id` FROM `cake`" ); ```

(mut self, expr: T)

    /// );
    /// ```
    fn expr<T>(mut self, expr: T) -> Self
    where
        T: Into<SelectExpr>,
    {
        self.query().expr(expr);
        self
    }

    /// Add select expressions from vector of [`SelectExpr`].
    /// ```