SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 4)
    Identifier a
    Identifier b
    Identifier c
    Identifier d
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias js1) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 2)
         SelectQuery (children 1)
          ExpressionList (children 3)
           Literal UInt64_1 (alias a)
           Literal UInt64_2 (alias b)
           Literal UInt64_3 (alias c)
         SelectQuery (children 1)
          ExpressionList (children 3)
           Literal UInt64_2
           Literal UInt64_3
           Literal UInt64_4
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Subquery (alias js2) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 2)
         SelectQuery (children 1)
          ExpressionList (children 3)
           Literal UInt64_1 (alias a)
           Literal UInt64_2 (alias b)
           Literal UInt64_4 (alias d)
         SelectQuery (children 1)
          ExpressionList (children 3)
           Literal UInt64_2
           Literal UInt64_3
           Literal UInt64_5
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier a
   ExpressionList (children 4)
    OrderByElement (children 1)
     Identifier a
    OrderByElement (children 1)
     Identifier b
    OrderByElement (children 1)
     Identifier c
    OrderByElement (children 1)
     Identifier d