Function test_union_after_join

datafusion/expr/src/logical_plan/builder.rs:2799–2830

()

    #[test]
    fn test_union_after_join() -> Result<()> {
        let values = vec![vec![lit(1)]];

        let left = LogicalPlanBuilder::values(values.clone())?
            .alias("left")?
            .build()?;
        let right = LogicalPlanBuilder::values(values)?
            .alias("right")?
            .build()?;

        let join = LogicalPlanBuilder::from(left).cross_join(right)?.build()?;

        let plan = LogicalPlanBuilder::from(join.clone())
            .union(join)?
            .build()?;

        assert_snapshot!(plan, @r"
        Union
          Cross Join:
            SubqueryAlias: left
              Values: (Int32(1))
            SubqueryAlias: right
              Values: (Int32(1))
          Cross Join:
            SubqueryAlias: left
              Values: (Int32(1))
            SubqueryAlias: right
              Values: (Int32(1))
        ");

        Ok(())
    }

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