Function format_cast

datafusion/expr/src/expr.rs:3916–3927

()

    #[test]
    fn format_cast() -> Result<()> {
        let expr = Expr::Cast(Cast {
            expr: Box::new(Expr::Literal(ScalarValue::Float32(Some(1.23)), None)),
            field: DataType::Utf8.into_nullable_field_ref(),
        });
        let expected_canonical = "CAST(Float32(1.23) AS Utf8)";
        assert_eq!(expected_canonical, format!("{expr}"));
        // Note that CAST intentionally has a name that is different from its `Display`
        // representation. CAST does not change the name of expressions.
        assert_eq!("Float32(1.23)", expr.schema_name().to_string());
        Ok(())
    }

    #[test]
    fn test_partial_ord() {