Method column

src/query/helper.rs:66–72

Add a select column ``` use sea_orm::{entity::*, query::*, tests_cfg::cake, DbBackend}; assert_eq!( cake::Entity::find() .select_only() .column(cake::Column::Name) .build(DbBackend::Postgres) .to_string(), r#"SELECT "cake"."name" FROM "cake""# ); ``` Enum column will be casted into text (PostgreSQL only) ``` use sea_orm::{entity::*, query::*, tests_cfg::lunch_set, DbBackend}; assert_eq!( lunch

(mut self, col: C)

    /// );
    /// ```
    fn column<C>(mut self, col: C) -> Self
    where
        C: ColumnTrait,
    {
        self.query().expr(col.select_as(col.into_expr()));
        self
    }

    /// Add a select column with alias
    /// ```