Function nested_table_scan

datafusion/expr/src/logical_plan/builder.rs:2767–2796

(table_name: &str)

    }

    fn nested_table_scan(table_name: &str) -> Result<LogicalPlanBuilder> {
        // Create a schema with a scalar field, a list of strings, a list of structs
        // and a singular struct
        let struct_field_in_list = Field::new_struct(
            "item",
            vec![
                Field::new("a", DataType::UInt32, false),
                Field::new("b", DataType::UInt32, false),
            ],
            false,
        );
        let string_field = Field::new_list_field(DataType::Utf8, false);
        let strings_field = Field::new_list("item", string_field.clone(), false);
        let schema = Schema::new(vec![
            Field::new("scalar", DataType::UInt32, false),
            Field::new_list("strings", string_field, false),
            Field::new_list("structs", struct_field_in_list, false),
            Field::new(
                "struct_singular",
                DataType::Struct(Fields::from(vec![
                    Field::new("a", DataType::UInt32, false),
                    Field::new("b", DataType::UInt32, false),
                ])),
                false,
            ),
            Field::new_list("stringss", strings_field, false),
        ]);

        table_scan(Some(table_name), &schema, None)
    }

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