exec-ddl
CREATE TABLE xy (x INT PRIMARY KEY, y INT)
----
TABLE xy
 ├── x int not null
 ├── y int
 └── INDEX primary
      └── x int not null

build
SELECT * FROM xy WITH ORDINALITY
----
row-number
 ├── columns: x:1(int!null) y:2(int) ordinality:3(int!null)
 ├── key: (1)
 ├── fd: (1)-->(2,3), (3)-->(1,2)
 ├── prune: (1,2)
 └── scan xy
      ├── columns: x:1(int!null) y:2(int)
      ├── key: (1)
      ├── fd: (1)-->(2)
      ├── prune: (1,2)
      └── interesting orderings: (+1)
