Function generate_different_schema

datafusion/optimizer/src/optimizer.rs:558–572

()

    #[test]
    fn generate_different_schema() {
        let opt = Optimizer::with_rules(vec![Arc::new(GetTableScanRule {})]);
        let config = OptimizerContext::new().with_skip_failing_rules(false);
        let plan = LogicalPlan::EmptyRelation(EmptyRelation {
            produce_one_row: false,
            schema: Arc::new(DFSchema::empty()),
        });
        let err = opt.optimize(plan, &config, &observe).unwrap_err();

        // Simplify assert to check the error message contains the expected message
        assert_contains!(
            err.strip_backtrace(),
            "Failed due to a difference in schemas: original schema: DFSchema"
        );
    }

    #[test]
    fn skip_generate_different_schema() {