Function test_join_metadata

datafusion/expr/src/logical_plan/builder.rs:2891–2915

()

    #[test]
    fn test_join_metadata() -> Result<()> {
        let left_schema = DFSchema::new_with_metadata(
            vec![(None, Arc::new(Field::new("a", DataType::Int32, false)))],
            HashMap::from([("key".to_string(), "left".to_string())]),
        )?;
        let right_schema = DFSchema::new_with_metadata(
            vec![(None, Arc::new(Field::new("b", DataType::Int32, false)))],
            HashMap::from([("key".to_string(), "right".to_string())]),
        )?;

        let join_schema =
            build_join_schema(&left_schema, &right_schema, &JoinType::Left)?;
        assert_eq!(
            join_schema.metadata(),
            &HashMap::from([("key".to_string(), "left".to_string())])
        );
        let join_schema =
            build_join_schema(&left_schema, &right_schema, &JoinType::Right)?;
        assert_eq!(
            join_schema.metadata(),
            &HashMap::from([("key".to_string(), "right".to_string())])
        );

        Ok(())
    }

    #[test]
    fn test_values_metadata() -> Result<()> {