SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function arrayJoin (children 1)
     ExpressionList (children 1)
      Literal Array_[UInt64_0]
    Function replicate (children 1)
     ExpressionList (children 2)
      Literal \'hello\'
      Literal Array_[UInt64_1]
   Function not (children 1)
    ExpressionList (children 1)
     Function ignore (children 1)
      ExpressionList (children 1)
       Function replicate (children 1)
        ExpressionList (children 2)
         Literal \'hello\'
         Literal Array_[UInt64_1]
