SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Identifier id
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (alias l) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 1)
           Identifier item_id (alias id)
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier t
          ExpressionList (children 1)
           Identifier id
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      Subquery (alias r) (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 4)
          ExpressionList (children 1)
           Identifier item_id (alias id)
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier t
          ExpressionList (children 1)
           Identifier id
          ExpressionList (children 1)
           OrderByElement (children 1)
            Identifier item_id
     TableJoin (children 1)
      ExpressionList (children 1)
       Identifier id
