SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function ignore (children 1)
     ExpressionList (children 1)
      Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 2)
           Identifier uId
           Identifier user.id (alias uuu)
          TablesInSelectQuery (children 2)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier order
           TablesInSelectQueryElement (children 2)
            TableExpression (children 1)
             TableIdentifier user
            TableJoin (children 1)
             Function equals (children 1)
              ExpressionList (children 2)
               Identifier uId
               Identifier uuu
