SelectWithUnionQuery (children 2)
 ExpressionList (children 3)
  SelectQuery (children 1)
   ExpressionList (children 1)
    Literal UInt64_1
  SelectQuery (children 1)
   ExpressionList (children 1)
    Literal UInt64_1
  SelectQuery (children 1)
   ExpressionList (children 1)
    Literal UInt64_1
 Identifier PrettySpace