SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Function count (children 1)
     ExpressionList
    Function arrayJoin (alias n) (children 1)
     ExpressionList (children 1)
      Literal Array_[UInt64_1, UInt64_2, UInt64_3]
   ExpressionList (children 1)
    Identifier n
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier n
   Literal UInt64_1
 Identifier JSON