SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 1)
   ExpressionList (children 2)
    Function sqidEncode (alias sqid) (children 1)
     ExpressionList (children 2)
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal UInt64_1
      Function materialize (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
    Function sqidDecode (children 1)
     ExpressionList (children 1)
      Identifier sqid