lower_inf

diesel-rs · Jul 13, 2024 · fa42891 · fa42891
1 parent f79dc0a
commit fa42891
Showing 1 changed file with 42 additions and 0 deletions.
diff --git a/diesel/src/pg/expression/functions.rs b/diesel/src/pg/expression/functions.rs
@@ -275,6 275,48 @@ define_sql_function! {
  fn upper_inc<T: RangeHelper>(range: T) -> Bool;
 }
 
 define_sql_function! {
  /// Returns if the range's lower bound inclusive.
  /// # Example
  ///
  /// ```rust
  /// # include!("../../doctest_setup.rs");
  /// #
  /// # table! {
  /// # posts {
  /// # id -> Integer,
  /// # versions -> Range<Integer>,
  /// # }
  /// # }
  /// #
  /// # fn main() {
  /// # run_test().unwrap();
  /// # }
  /// #
  /// # fn run_test() -> QueryResult<()> {
  /// # use self::posts::dsl::*;
  /// # use std::collections::Bound;
  /// # let conn = &mut establish_connection();
  /// # diesel::sql_query("DROP TABLE IF EXISTS posts").execute(conn).unwrap();
  /// # diesel::sql_query("CREATE TABLE posts (id SERIAL PRIMARY KEY, versions INT4RANGE NOT NULL)").execute(conn).unwrap();
  /// #
  /// use diesel::dsl::lower_inf;
  /// diesel::insert_into(posts)
  /// .values(&[
  /// versions.eq((Bound::Included(5), Bound::Excluded(7))),
  /// versions.eq((Bound::Unbounded, Bound::Excluded(7))),
  /// ]).execute(conn)?;
  ///
  /// let cool_posts = posts.select(lower_inf(versions))
  /// .load::<bool>(conn)?;
  /// assert_eq!(vec![false, true], cool_posts);
  /// # Ok(())
  /// # }
  /// ```
  #[cfg(feature = "postgres_backend")]
  fn lower_inf<T: RangeHelper>(range: T) -> Bool;
 }
 
 define_sql_function! {
  /// Returns range of integer.
  /// # Example