SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function midpoint (alias result) (children 1)
     ExpressionList (children 2)
      Function toDateTime (children 1)
       ExpressionList (children 1)
        Literal \'2025-01-01 00:00:00\'
      Function toDateTime (children 1)
       ExpressionList (children 1)
        Literal \'2025-01-03 12:00:00\'
    Function toTypeName (alias type) (children 1)
     ExpressionList (children 1)
      Identifier result