github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/sql/opt/optgen/exprgen/testdata/scalar (about)

     1  expr
     2  (True)
     3  ----
     4  true [type=bool]
     5  
     6  expr
     7  (Eq (True) (False))
     8  ----
     9  eq [type=bool]
    10   ├── true [type=bool]
    11   └── false [type=bool]
    12  
    13  expr
    14  (Plus (Const 1 "int") (Const 2 "int"))
    15  ----
    16  plus [type=int]
    17   ├── const: 1 [type=int]
    18   └── const: 2 [type=int]
    19  
    20  expr
    21  (Tuple [ (True) (False) ] "tuple{bool, bool}" )
    22  ----
    23  tuple [type=tuple{bool, bool}]
    24   ├── true [type=bool]
    25   └── false [type=bool]