dbt-labs/dbt-core · error

type should be accessible

Error message

type should be accessible

What it means

Test-only assertion in test_constraints_to_jinja_exposes_object_attributes: the first constraint yielded by iterating unset_constraints must expose a `type` attribute readable from Jinja. Fires only if individual constraint objects stop exposing their type.

Solutions

1. Ensure each constraint in the Jinja wrapper exposes a `type` attribute
2. Check the per-constraint object implementation used by to_jinja
3. Treat failure as a regression in Jinja attribute exposure

When it happens

Trigger: Thrown at crates/dbt-adapter/src/relation/databricks/config/components/constraints.rs:958 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of dbt-labs/dbt-core@0267ce9170 (2026-09-07). Data as JSON: /api/errors/b9f0b030e2c2d064. Report an issue: GitHub.

Appendix: source

Thrown at crates/dbt-adapter/src/relation/databricks/config/components/constraints.rs:958

        let constraints = Constraints::new(
            IndexSet::new(),
            IndexSet::new(),
            IndexSet::new(),
            IndexSet::from([pk]),
        );

        let jinja_val = constraints.to_jinja();
        let unset = jinja_val
            .get_attr("unset_constraints")
            .expect("unset_constraints should be accessible");
        let mut iter = unset
            .try_iter()
            .expect("unset_constraints should be iterable");
        let constraint_val = iter.next().expect("should have one constraint");

        let type_val = constraint_val
            .get_attr("type")
            .expect("type should be accessible");
        assert_eq!(type_val.as_str(), Some("primary_key"));

        let name_val = constraint_val
            .get_attr("name")
            .expect("name should be accessible");
        assert_eq!(name_val.as_str(), Some("pk_id"));

        let render_val = constraint_val
            .get_attr("render")
            .expect("render should be accessible");
        assert!(
            !render_val.is_undefined(),
            "render should be a callable function"
        );
    }

    #[test]
    fn test_constraint_normalization_and_diff() {

View on GitHub (pinned to 0267ce9170)