Method having

src/query/helper.rs:310–316

Add an AND HAVING expression ``` use sea_orm::{sea_query::{Alias, Expr}, entity::*, query::*, tests_cfg::cake, DbBackend}; assert_eq!( cake::Entity::find() .having(cake::Column::Id.eq(4)) .having(cake::Column::Id.eq(5)) .build(DbBackend::MySql) .to_string(), "SELECT `cake`.`id`, `cake`.`name` FROM `cake` HAVING `cake`.`id` = 4 AND `cake`.`id` = 5" ); assert_eq!( cake::Entity::find() .select_only

(mut self, filter: F)

    /// );
    /// ```
    fn having<F>(mut self, filter: F) -> Self
    where
        F: IntoCondition,
    {
        self.query().cond_having(filter.into_condition());
        self
    }

    /// Add a DISTINCT expression
    /// ```